Travel Requirement: >80% 

Position Type: Full-Time, hourly with OT and per diem

Location: Field-Based in United States (current site in Amarillo, TX)

Overview 

The Site ReadinessTechnician plays a critical role in ensuring all delivered and installed equipment meets the project Quality Plan, industry standards, and manufacturer specifications. This role performs detailed receiving inspections, validates construction quality after mechanical completion, and ensures Battery Energy Storage System (BESS) equipment is ready for commissioning and energization. 

The ideal candidate has strong experience in utility-scale power systems—such as BESS, solar, thermal/gas turbine, or other power plant environments—and thrives in a fast-paced, travel-heavy field role. 

Key Responsibilities 

Equipment Receiving & Quality Inspections 

• Perform incoming inspections of electrical and mechanical equipment including BESS containers, battery racks/modules, inverters, transformers, switchgear, telecommunications cabinets, and auxiliary systems.

• Validate that all delivered equipment matches approved submittals, drawings, and the project’s Quality Plan, meeting ON.energy’s high industry standards.

• Document shipping damage, deviations, and non-conformances; initiate NCRs and coordinate with engineering, vendors, and construction teams for resolution. 
   

Mechanical Completion Verification 

• Inspect equipment installations after mechanical completion to verify workmanship quality, adherence to codes/standards, and compliance with OEM requirements.

• Conduct detailed inspections on wiring terminations, cable routing, torque requirements, labeling, grounding, conduits, and enclosure integrity.

• Review and verify that installation meets NEC, IEEE, UL 9540/9540A, relevant utility standards, and project-specific QA/QC criteria. 
   

Documentation & Reporting 

• Maintain thorough inspection reports, punch lists, redlines, and photographic documentation.

• Track and verify corrective actions, ensuring issues are closed prior to energization or commissioning handoff.

• Support QA Manager in maintaining project-level Quality Plans and documentation control. 
   

Cross-Functional Collaboration 

• Work with construction teams, commissioning engineers, EPC partners, and OEM representatives to resolve field quality issues.

• Communicate findings clearly and professionally across disciplines, escalating issues when required.

• Support readiness reviews, quality walkdowns, and pre-energization verification activities. 
   

Required Qualifications 

• 3+ years of experience in one or more of the following:

• Power plants (thermal, gas turbine, peaker, etc.)

• Utility-scale solar

• Battery Energy Storage Systems

• High-voltage electrical or industrial environments 

• Data Centers 

• Strong ability to read and interpret electrical/mechanical drawings, one-lines, installation manuals, and QA/QC documentation.

• Experience performing field inspections, equipment verification, or construction quality control.

• Willing and able to travel over 80% to project sites nationwide.

• Understanding of codes and standards such as NEC, NFPA, IEEE, UL, ISO/IEC, and utility requirements. 
   

Preferred Qualifications

• Prior experience in QA/QC, commissioning, or field service roles.

• Familiarity with BESS architectures, inverters, transformers, MV equipment, and SCADA/telecom cabinets.

• Certifications such as NETA, AWS CWI, ISO 9001 auditor, or OSHA 30. 
   

Soft Skills 

• Strong attention to detail and a “zero-defect” mindset.

• Excellent communication and documentation habits.

• Ability to work independently in remote field environments.

• Professional, solution-driven approach to problem solving 
   

Location: Site based in United States (Amarillo, TX initially), 80% plus travel

Compensation: Hourly with overtime eligibility and per diem

We're looking for highly skilled and motivated Commissioning Technician II to join our best in class team and play a critical role in bringing complex projects to life. In this position, you'll be responsible for managing project technician during all stages of construction and installation, ensuring that all systems and equipment are installed, tested, and operate according to specifications and client requirements.

As a Commissioning Technician II at ON.energy, you will:

• Oversee field installation quality, ensuring electrical and mechanical components meet design specifications.
• Manage small team of 1-3 technicians to support project initiatives
• Participate within a culture of safety for all team members, complying with Job Hazard Analysis (JHA) and Lock out tag out (LOTO) programs, maintaining zero recordable injuries.
• Perform initial power-up and low-voltage testing.
• Execute system wiring verification, sensor calibration, and communication checks.
• Assist engineers in functional testing and troubleshooting.
• Maintain tool and equipment readiness for commissioning tasks.
• Proficient in the safe use of standard hand tools (wrenches, screwdrivers, pliers, torque tools, etc.) for assembly, installation, and adjustment of equipment.
• Ability to operate specialized electrical diagnostic tools, including but not limited to digital multimeters, clamp meters, insulation resistance testers, and other measurement devices commonly used in battery energy storage systems.

Requirements

• Strong understanding of electrical schematics, power distribution, and BESS components.
• Experience in electrical testing, troubleshooting, and commissioning procedures.
• Experience with Medium Voltage switching procedures.
• Associate degree, military training, technical or equivalent experience in electrical/mechanical systems.
• Safety certifications (OSHA 30, OSHA 10, NFPA 70E, First Aid, CPR, AED) preferred.
• Ability to be site based 8 weeks on, 1 week off. 

Location: Houston, TX or Reston, VA preferred / Remote considered / Hybrid office schedule and travel up to 50%.

Overview

Location: Houston preferred / Remote considered / Hybrid office schedule and travel up to 50%.

Overview

• Support the end-to-end engineering execution of BESS projects for data centers, from development to commissioning.Manage the technical scope of projects and serve as the technical point of contract to the project manager.
• Coordinate with internal engineering, procurement, and construction teams to ensure project milestones are met.
• Collaborate with customers, EPC contractors, OEMs, and design consultants on integration of BESS with data center electrical infrastructure.
• Review and validate system designs (electrical, civil, mechanical) and vendor submittals to ensure technical compliance and quality.
• Design and develop Single line diagrams, Schematics, Wiring diagrams for Battery storage systems
• Prepare Electrical Equipment Specifications, Data Sheets, Purchase Requisitions and Bid evaluations for inverters, Switchgear, Transformers and other electrical equipment as required
• Develop Short circuit, load flow, and arc flash studies using software such as ETAP.
• Assist in developing project schedules, procurement plans, and technical documentation.
• Conduct site walks and support field activities during installation and commissioning.
• Participate in Factory and Site Acceptance Testing (FAT/SAT) of BESS components and systems.
• Identify technical risks and propose mitigation strategies in coordination with Project Management.
• Ensure all work is compliant with relevant codes (e.g., NEC, IEEE, NFPA) and On Energy Storage’s internal standards.

• Experience working on EPC or design-build projects in the energy or critical infrastructure sector in North America.
• Familiarity with commissioning protocols and QA/QC procedures for electrical systems.
• PE or EIT certification is a plus.

We’re looking for a Senior Controls Engineer with project-based engineering experience to lead network-and-controls-related hardware product design, documentation, project-specific technical compliance and support the development activities related to these products. This is a product focused role—we need someone who can speak fluently about both network architecture and industrial control systems, ideally have experience in mission critical applications, and interface with IT, software, project, commissioning and O&M engineering teams. 

Key Responsibilities: 

• Support the business development team by providing technical proposals e.g. network diagrams that meet the customer’s needs.
• Collaborate across control systems, SCADA, and IT teams to ensure complete and secure connectivity
• Integrate and support industrial protocols like Modbus, DNP3, and OPC-UA
• Compile product technical information packages for the project engineering team.
• Co-lead review and validation of network/controls product-related topics during the project execution phase. 
• Maintain technical documentation including as-built drawings
• Support product development by capturing design improvement feedback from the different project phases: design, commissioning and O&M.
• Support product development by recommending design approaches and vendors of the main equipment.
• Participate in product design sprints with the development team.
• Participate in the product’s commissioning phase. 

Required Experience

• Bachelor’s degree in Controls Engineering, Electronics Engineering, or similar technical field.
• 8+ years of hands-on controls engineering experience in project-based or industrial settings.
• Proven experience in project network deployments, not just operations
• Strong grasp of protocols (TCP/IP, BGP, OSPF, VLANs, VPNs)
• Familiarity with control systems and operational technology (OT)
• Ability to produce and read network and control architecture drawings
• Excellent communication skills across technical and non-technical teams.
• Willing to travel up to 20% for product FAT inspection and site commissioning witnessing. 

Preferred Experience

• Certifications: ISA CAP/CCST, Rockwell, Siemens, Schneider or similar
• Experience with BESS, SCADA, EMS, Safety Systems or utility-scale infrastructure
• Background in energy, utility, or data center environments 

We’re looking for a Senior Compliance Engineer with deep expertise in regulatory requirements, codes, and certification processes applicable to BESS, power electronics, and electrical distribution systems e.g. panelboards, switchboards, etc.. This is a product-focused and cross-functional role responsible for ensuring that our systems meet all applicable North American and international standards, as well as ISO/RTO interconnection and market requirements. You will serve as the internal authority on compliance, working closely with product, R&D, and project engineering teams to ensure designs are certifiable, deployable, and aligned with evolving regulatory frameworks.

Key Responsibilities:

• Lead compliance strategy and execution for BESS, DC cabinets, inverters, and related power, controls /IT equipments.
• Interpret and apply standards such as UL, CSA, IEEE, IEC, and NFPA to product and project designs.
• Act as the subject matter expert on ISO/RTO regulatory requirements (e.g., interconnection, grid codes, testing protocols).
• Define and manage certification roadmaps for new and existing products.
• Coordinate and support product testing and certification activities, including UL listings, field evaluations, and special inspections.
• Develop and maintain with Technical Writer compliance documentation, including test plans, reports, and certification packages.
• Work directly with NRTLs and certification bodies to facilitate approvals and resolve technical issues.
• Support engineering teams by ensuring designs meet code and standard requirements from early development stages.
• Review and validate test procedures and results, including electrical, thermal, environmental, and safety testing.
• Support project teams during AHJ reviews, permitting, and commissioning, addressing compliance-related questions.
• Monitor and interpret regulatory changes and emerging standards, ensuring proactive alignment of products.

Required Skills & Experience:

• Bachelor’s degree in Electrical Engineering, Mechanical Engineering, or related field.
• 10+ years of experience in compliance, certification, or regulatory engineering for BESS, power electronics, or industrial electrical systems.
• 4+ years experience with working knowledge of key standards, including:
  • UL (e.g., UL 9540, UL 9540A, UL 1741, UL 508A)
  • CSA standards for electrical equipment
  • IEEE standards related to power systems and interconnection
  • IEC standards for international compliance
  • NFPA (e.g., NFPA 855)
• Deep understanding of test procedures and certification processes, including safety, thermal runaway, environmental, and performance testing.
• Familiarity with ISO/RTO requirements (e.g., ERCOT, PJM, CAISO, MISO) and grid interconnection standards.
• Experience working with NRTLs (e.g., UL, CSA, Intertek) and managing certification programs.
• Ability to interpret and apply codes, standards, and regulatory language into practical engineering requirements.
• Strong communication skills across engineering, regulatory authorities, and external certification bodies.
• Project Management skills.

Preferred Experience:

• Experience with utility-scale and/or C&I BESS deployments.
• Direct involvement in UL 9540A fire testing, LSFT or similar safety validation programs.
• Knowledge of utility -scale inverter compliance requirements.
• Experience supporting permitting and AHJ engagement in the U.S.
• Background in quality systems or regulatory audits.

• Administer and maintain document control systems within Microsoft SharePoint
• Organize, structure, and manage document libraries and workflows
• Ensure proper version control, metadata, and document governance
• Support internal teams with SharePoint usage and best practices
• Improve document management processes and system efficiency
• Ensure compliance with company standards and audit requirements

• 8–10 years of document control experience
• Strong expertise in Microsoft SharePoint
• Experience with EDMS (Electronic Document Management Systems) 
• Experience designing or managing document management systems
• Strong attention to detail and process-oriented mindset
• Ability to collaborate across teams and geographies

• Manage and maintain project documentation throughout the lifecycle
• Ensure proper version control, distribution, and storage of documents
• Coordinate with project teams, contractors, and stakeholders
• Maintain compliance with document control procedures and standards
• Track submittals, RFIs, drawings, and project deliverables
• Support audits and ensure document accuracy and completeness

• 8–10 years of document control experience
• Strong proficiency in Procore (required)
• Experience with ACC (Autodesk Construction Cloud) (required)
• Experience supporting large-scale projects (construction, energy, infrastructure preferred)
• Strong organizational and communication skills
• Ability to manage multiple priorities in a fast-paced environment

Location: Amarillo, TX (Project-Based, On-Site)

About On Energy Storage

On Energy Storage designs, deploys, and operates advanced Battery Energy Storage Systems (BESS) supporting commercial, industrial, and utility customers across the Americas. Our engineering team drives high-quality, technically rigorous project execution across interconnection, site design, and protection & control systems. We prioritize speed, accuracy, and operational reliability in every project.

Position Summary

On Energy Storage is seeking an experienced Field Engineer to support the construction and commissioning of a utility-scale BESS project in Amarillo, TX. This is a full-time, on-site role embedded within the project team. The Field Engineer will serve as the primary technical resource for the EPC contractor and commissioning teams, providing real-time electrical and mechanical guidance, resolving field issues, and ensuring that installation activities align with On Energy Storage's engineering standards, design documents, and applicable codes. The ideal candidate brings a strong electrical engineering background with hands-on experience supporting field construction and commissioning activities on power systems or energy storage projects.

Key Responsibilities

- Serve as the on-site technical point of contact for the EPC contractor.

- Interpret engineering drawings and support field installation teams.

- Review and resolve RFIs with the engineering team.

- Monitor installation for compliance with design and codes.

- Identify and resolve field discrepancies.

- Document and share lessons learned on equipment being installed.

- Support FAT and SAT activities.

- Maintain field reports and documentation.

- Coordinate with engineering and EPC teams.

- Participate in meetings and safety reviews.

- Verify equipment installation compliance.

- Support punch list and project closeout.

Qualifications

- Bachelor's degree in Electrical Engineering or related field.

- 3-5 years of relevant experience.

- Strong understanding of electrical systems.

- Ability to read electrical drawings.

- Knowledge of NEC, IEEE, NFPA.

- Troubleshooting and communication skills.

- Proficiency in Microsoft Office and Procore.

- Ability to work on-site in Amarillo, TX.

Preferred Qualifications

- Experience with BESS systems.

- EPC or infrastructure project experience.

- Commissioning and QA/QC familiarity.

- Bluebeam experience.

- SCADA/EMS exposure.

- EIT or PE certification preferred.

We are looking for a Senior Cybersecurity Engineer to architect and implement technical security controls for our grid-connected energy portfolio. As we scale our operations, we need a hands-on engineer to secure the entire data lifecycle - from the industrial control systems (OT) at the edge, through the cloud telemetry pipeline, to the corporate dashboards.

This is a builder role. You will be responsible for deploying and managing our core security infrastructure - specifically Wazuh and Authentik - to secure our AWS environments and operational field assets. You will work directly with control systems engineers and DevOps teams to build security into our backbone.

Responsibilities will include: 

Cloud & Infrastructure Security

• Cloud Architecture: Secure the AWS infrastructure that hosts our energy management platforms. Implement hardening baselines and manage security groups for cloud resources
• SIEM & Observability (Wazuh): Architect a centralized and on-prem SIEM deployment to ingest logs from CloudTrail, VPC Flow Logs, and Linux servers. Configure custom decoders to detect threats across both cloud and on-prem environments
• Infrastructure as Code (IaC): Review and secure Terraform/CloudFormation scripts. Manage security configurations (including Wazuh agents and Authentik outposts) via Ansible or similar automation tools
• IoT/Edge Security: Secure the telemetry pipeline from the edge device (site controller) to the cloud, ensuring encryption (TLS 1.2/1.3) and proper certificate management (PKI) for edge

Identity & Access Management (IAM)

• Unified IAM (Authentik): Architect Authentik as the central Identity Provider (IdP), enforcing MFA and SSO across cloud consoles, internal engineering tools, and Grafana dashboards
• Least Privilege: Engineer granular IAM roles for cloud resources and service accounts, ensuring that automated services have only the permissions necessary to function

Operational Technology (OT) Security

• Network Segmentation: Design and implement IEC 62443-aligned network architectures (Purdue Model), strictly controlling traffic between the IT, Cloud, and OT zones
• Vulnerability & Integrity Monitoring: Deploy Wazuh agents on industrial PCs and HMIs to perform File Integrity Monitoring (FIM) and vulnerability scanning without disrupting critical real-time processes
• Industrial Protocols: Analyze and secure communications (Modbus, DNP3) to ensure integrity between field assets and control centers

Requirements:

• 5–8 years of technical cybersecurity experience, with a specific blend of Cloud/Linux Engineering and OT/Industrial exposure
• Proven experience working with industrial control systems (ICS), SCADA, or utility/energy infrastructure
• Deep expertise in securing Linux-based cloud environments and managing infrastructure via code
• Comfortable debugging a failed Wazuh agent on a Linux server or tracing a dropped packet in a cloud VPC
• Tailoring flexible open-source tools to fit specific architectural needs rather than relying solely on "black box" commercial vendors

Technical stack proficiency: 

• Wazuh: Deep experience deploying managers/agents, writing custom rules/decoders, and tuning FIM/SCA modules for low-noise environments
• Authentik: Experience configuring Providers (OIDC, SAML), Outposts, and proxying legacy applications
• Cloud Platforms: Proficiency with AWS (GuardDuty, IoT Core, IAM) or Azure (Defender for IoT, Entra ID)

Preferred experience:

• Experience with Docker/Kubernetes security in an edge computing context
• Knowledge of industrial protocols (Modbus TCP, DNP3, IEC 61850)
• Certifications: GICSP, GRID, AWS Certified Security – Specialty

We are seeking a Senior Mechanical Engineering Manager with strong experience in structural analysis and mechanical systems validation to lead the mechanical design activities for the products deployed for our energy infrastructure and mission-critical projects. This is a product focused role—we need someone who can speak fluently about ensuring the structural integrity, mechanical reliability, safety and validate the thermal performance of equipment and supporting structures under static and dynamic operating conditions, ideally have experience with mission critical applications, and interface with project, commissioning and O&M engineering teams.

Key Responsibilities: 

• Perform structural stress and fatigue analysis for mechanical assemblies, enclosures, and supporting infrastructure used in ON.energy’s product offering.
• Lead and/or review Finite Element Analysis (FEA) models or reports to validate mechanical designs under static, dynamic, thermal, and seismic loading conditions.
• Ensure mechanical and structural safety under operational loads, transportation loads, vibration, and environmental conditions.
• Evaluate failure modes and recommend design improvements to enhance durability, reliability, and lifecycle performance.
• Collaborate with BESS, Power Electronics and Controls teams to ensure integrated system performance.
• Support development and review of mechanical documentation including calculations, reports, specifications, and as-built drawings.
• Experience designing heating, ventilation, and air-conditioning (HVAC) systems. Overall have experience with thermal design of enclosures e.g. calculations of HVAC, identification of temperature limits, humidity management and mitigation.
• Participate in product design sprints with the development team.
• Provide technical input during product design iterations based on lessons learned from project engineering design, installation, commissioning, and operations.
• Project management skills.
• Excellent communication skills across technical and non-technical teams.
• Willing to travel up to 20% for product FAT inspection and site commissioning witnessing.

Required Skills & Experience

• Bachelor’s degree in Mechanical Engineering or similar technical field.
• 15+ yearsof hands-on structural and mechanical engineering experience in project-based or industrial settings.
• Strong experience performing stress analysis, fatigue analysis, and vibration assessment.
• Demonstrated experience ensuring structural safety and compliance with applicable engineering standards and codes.
• Ability to interpret engineering drawings and develop detailed reports and calculations.

Preferred Experience:

• Experience with Power Electronics, UPS/mission critical applications or utility-scale infrastructure where mechanical system are applied.
• Panel building mechanical design experience for power and controls/IT equipment.

Supply Chain Manager – Transformers

The Supply Chain Sourcing Manager – Transformers is responsible for planning, sourcing, purchasing, logistics, and supplier management across transformer and substation equipment. This role focuses on power transformers, distribution transformers, auxiliary transformers, and associated balance-of-system components to ensure on-time, cost-effective, and high-quality delivery of materials and services.

The role partners closely with Engineering, Operations, Finance, and Quality to align supply chain strategy with business objectives and support safe, reliable, and scalable energy infrastructure deployments.

Category-Specific Responsibilities – Transformers

• Source and manage procurement of power transformers, distribution transformers, pad-mounted units, and related substation equipment.
• Oversee technical specifications for transformer systems, including:
  • Voltage ratings, MVA capacity, and impedance characteristics
  • Cooling systems (ONAN, ONAF, OFAF, etc.)
  • Insulation systems and dielectric performance
  • Losses (no-load and load losses) and efficiency requirements
  • Protection, monitoring, and control systems
• Partner with Engineering on:
  • Transformer sizing and specification development
  • Substation design and system integration
  • Grid interconnection requirements and utility standards
  • Protection schemes and relay coordination
  • SCADA and communication protocols
• Negotiate supply agreements to include pricing, warranties, performance guarantees, spare parts, and long-term service agreements (LTSA).

Strategic Sourcing & Procurement

• Develop and execute sourcing strategies for transformers and electrical infrastructure components.
• Lead supplier selection, qualification, RFQs/RFPs, negotiations, and contracting.
• Manage commercial terms, pricing structures, delivery schedules, and escalation clauses.
• Drive cost optimization through multi-sourcing, should-cost modeling, and total cost of ownership (TCO) analysis.

Supplier Relationship Management

• Build and maintain strong relationships with transformer OEMs, EPC partners, and key component suppliers.
• Conduct supplier performance reviews across quality, delivery, cost, and technical responsiveness.
• Lead supplier corrective actions, risk mitigation efforts, and continuous improvement initiatives.

Cross-Functional Collaboration

• Work with Engineering on specifications, equipment selection, and change management.
• Partner with Operations to support project execution, installation, and commissioning.
• Align with Finance on budgeting, cost tracking, and savings initiatives.
• Support Quality in NCR resolution, failure analysis, and supplier audits.

Continuous Improvement & Risk Management

• Monitor market trends in transformer manufacturing, raw materials (e.g., copper, steel), and supply chain constraints.
• Identify and mitigate risks related to long lead times, manufacturing capacity, geopolitical factors, and evolving grid standards.
• Implement process improvements to streamline procurement and improve scalability.
• Develop contingency plans for supply disruptions, quality issues, or performance risks.

Qualifications

• Bachelor’s degree in Supply Chain, Business, Engineering, or related field.
• 5+ years of supply chain or procurement experience, with transformer, substation, or power systems experience strongly preferred.
• Strong understanding of transformer technologies, grid infrastructure, and industry standards (IEEE, IEC).
• Proven negotiation, analytical, and contract management skills.
• Excellent communication and cross-functional stakeholder management skills.

Requirements

The Sourcing Analyst is responsible for executing sourcing activities for critical direct material categories, including transformers and power distribution equipment, and supporting targeted sourcing efforts across indirect materials and services. The role focuses on RFQ execution, supplier coordination, and contract support prior to purchase order placement.

This role works closely with Engineering, Operations, and Finance, and interfaces directly with suppliers to manage commercial and sourcing workflows.

Sourcing

• Execute RFQ processes for direct material categories, including supplier outreach, quote collection, and bid evaluation
• Lead targeted sourcing activities for indirect materials and services, including RFQs, supplier communication, and quote comparisons
• Coordinate with Engineering and Operations on specifications, lead times, and supplier requirements for direct materials
• Support commercial alignment with suppliers, including pricing, scope, and delivery terms prior to award
• Support contract review, commercial terms alignment, and supplier negotiations across both direct and indirect categories
• Support supplier selection and onboarding in coordination with internal stakeholders

Supplier Management & Performance

• Establish and maintain supplier performance metrics across cost, delivery, quality, and service
• Collect and organize supplier data to support performance tracking and reporting
• Support periodic supplier and internal performance reviews
• Maintain ongoing communication with suppliers on commercial and performance topics

Planning & Supplier Coordination

• Develop and communicate vendor-facing forecasts and demand inputs
• Coordinate with internal teams to align sourcing requirements with supplier capabilities and lead times
• Maintain regular communication with suppliers on requirements, priorities, and updates

Operations & Process Development

• Coordinate supplier meetings, including agendas, action tracking, and follow-ups
• Maintain sourcing documentation, pricing data, and procurement records
• Support development of sourcing processes, tools, and reporting structures

Qualifications

• 3–5 years of experience in sourcing, procurement, supply chain, or related field
• Proficiency in Excel, including data analysis, pricing comparisons, and basic modeling
• Experience executing RFQs, supplier coordination, and sourcing workflows
• Experience supporting direct materials procurement, preferably in electrical equipment or industrial environments
• Familiarity with contract review, commercial terms, and supplier agreements
• Understanding of core procurement concepts, including pricing analysis, supplier evaluation, and cost drivers
• Strong organizational skills and ability to manage multiple suppliers and workstreams
• Strong communication skills, with experience working directly with external vendors and internal stakeholders

Preferred Qualifications

• Experience in energy, infrastructure, or manufacturing environments
• Familiarity with electrical infrastructure components (e.g., transformers, switchgear, power distribution systems)
• Experience working with ERP or procurement systems

ON.energy is seeking a Technical Accountant to support complex accounting matters related to renewable energy projects, energy storage assets, project financing structures, and corporate transactions. This role will work closely with finance, development, legal, and operations teams across the organization and will support accounting and financial reporting under U.S. GAAP.

The ideal candidate has strong technical accounting knowledge, experience working with U.S.-based companies or multinational organizations, and excellent analytical and documentation skills.

Key Responsibilities

• Research and analyze complex accounting issues and prepare technical accounting memoranda in accordance with U.S. GAAP.
• Evaluate accounting treatment for project finance structures, joint ventures, leases, equity investments, and debt instruments.
• Support accounting for energy storage projects, asset acquisitions, and project development costs.
• Analyze and document accounting treatment for revenue recognition, consolidation, derivatives, and fair value measurements.
• Assist with financial statement preparation and disclosures in accordance with U.S. GAAP.
• Support month-end and quarter-end close processes related to complex accounting areas.
• Collaborate with internal teams to assess accounting implications of new projects, financing arrangements, and contracts.
• Support external audits and work closely with auditors.
• Maintain and improve accounting policies, procedures, and internal controls.
• Monitor and evaluate the impact of new accounting standards (FASB / U.S. GAAP).

Qualifications

• Bachelor’s degree in Accounting or Finance.
• 4–7 years of experience in public accounting, technical accounting, or corporate accounting.
• Experience working with U.S.-based companies or multinational organizations.
• Strong knowledge of U.S. GAAP accounting standards.
• Experience preparing technical accounting analyses or memos preferred.
• Strong written and verbal communication skills in English.
• High attention to detail and strong analytical capabilities.

Preferred Qualifications

• Experience in renewable energy, infrastructure, utilities, or project-based industries.
• Familiarity with project finance structures.
• Knowledge of accounting standards  ASC 606 (revenue recognition).
• CPA (U.S. or Mexico) or progress toward certification is a plus.

Site Project Manager, Energy Storage

Requirements

Location & Travel: Ability to be project site based up to 80% for duration of project. Initial project location will be Northwest Texas. Rotation is 4 weeks on, 1 week off. Candidates located near Houston are ideal but not required.

Compensation: Salary / Per diem or Expense / Annual Target Bonus

The Safety Coordinator position will use their knowledge, experience, and expertise to proactively identify potential hazards and implement preventive measures to protect employees and property. The Safety Coordinator will work closely with the on-site project team and assist in all items/activities related to safety, health, and environmental. The Safety Coordinator requires minimal day-to-day supervision and is able resolve simple issues but is expected to seek advice/direction from the Project Safety Manager in order to make more complex decisions. Must be able to travel and work remotely as required for full-time on-site project support. The Safety Coordinator will support field operations and will be used between project deployments to assist in corporate safety tasks such as procedure development, audit support, and training development. The Safety Coordinator will report to Director of Global Safety. 

Responsibilities: 

• Acts as a technical advisor to project team and contractors.
• Independently determines approaches and develops solutions to resolve simple HSE issues and works with HSE management to determine approaches and develops solutions to resolve complex HSE issues.
• Performs continual monitoring of equipment, structures, and work in progress to ensure required health and safety, and environmental plans for the project and all applicable regulations, codes and standards are followed.
• Stops work when unsafe and determines appropriate corrective and preventative action to be taken and completed prior to restarting.
• Participates in weekly safety inspection/assessment with each contractor/vendor working at site and ensures corrective and preventative actions are implemented.
• Assists in developing and conducting project H&S and environmental orientation sessions for all people working or entering the project site and maintains training records.
• Assists in planning, conducting, or coordinating necessary training programs to promote knowledge of and conformity with health and safety, and environmental issues per phase of project.
• Leads, coordinates, and participates in simple and complex investigations of near misses, injuries, unsafe conditions, and incidents that do or could involve actual or potential liability; maintain records of pertinent data and compile required analysis reports on such investigations.
• Attends tailboard meetings, pre-job briefings and JSA review meetings.
• Leads and develops content for project weekly safety meeting with project management team and contractor/vendor management participation.
• Assists and/or maintains the On Energy online project HSE data base: (safety observations, incident reporting, training, etc.).
• Assist and/or develop project related H&S and environmental programs as may be required for project compliance with local, state, or federal regulations.
• Assist and/or develop training curriculum and conduct required training sessions to educate employees on the safe and compliant work practices associated with project activities.

Administration and Communications Requirements:

• Plans and manages work activities for themselves with assistance from the Project Safety Manager to accomplish project goals and objectives.
• Ensures H&S and environmental plans are comprehensive and effective in meeting established goals and objectives.
• Handles multiple priorities requiring frequent interpretation of programs and procedures.
• Interprets, explains, advises, and makes recommendations on simple safety issues to project management team.
• Teamwork and leadership skills, with the ability to mentor, coach, and guide others in HSE behaviors.
• Strong verbal and written communication skills for effectively communicating with internal and external customers.
• Ability to build strong relationships both internally and externally is a key priority.
• Must be proficient in Microsoft word, excel and power point programs.

Analytical and Technical Requirements:

• Ability to analyze technical and regulatory information, make sound judgments, and provide prudent recommendations.
• Regularly make decisions that are covered by general methods and procedures requiring frequent interpretations of programs and processes.
• Thorough knowledge in the field of health and safety, as well as general environmental regulations for the construction/renewables industry.
• Assist in developing, implementing, and evaluating programs and procedures in areas high-risk activities such as: working at height, electrical safety, lockout/tagout, fire, and hazardous materials, and other areas i.e. ergonomics, emergency preparedness, industrial hygiene and general safe work practices.

Qualifications:  

• 3-5 years work experience in Battery Energy Storage projects and/or industrial electrical construction projects, with safety related certification, e.g., Construction Health and Safety Technician (CHST), Occupational Hygiene and Safety Technician (OHST) or equivalent. Or, work experience may be subsidized by a Degree in Occupational Safety and Health, or related field.
• Low voltage/medium voltage electrical safety experience with foundational knowledge of electrical safe work practices.
• Strong leadership skills
• Must be Bilingual in English and Spanish with the ability to read, write, and translate safety/training documentation from English to Spanish.  
• Must have valid passport or ability to obtain one.
• Ability to be project-site based for duration of projects.

The Project Controller is responsible for overseeing all financial aspects of project execution, from budgeting to forecasting, cost control, revenue recognition, risk management and compliance. This role is a key liaison between Project Management, Finance and other departments to ensure accurate financial tracking, reporting and governance across the project lifecycle.

Key Responsibilities

• Budgeting and Forecasting: Develop and maintain project budgets, update forecasts, and manage cash flow projections
• Cost Control & Analysis: Track project costs, analyze variances, and support corrective action plans
• Project Monitoring & Reporting: Maintain performance dashboards and prepare periodic project financial reports
• Contract: Ensure contract terms are adhered to regarding financial reporting, milestones, liquidated damages and billing. Support claims preparation and claims resolution
• Risk & Change Management: Assess financial impacts of project changes and integrate approved adjustments into forecasts and billing
• Compliance and Governance: Ensure adherence to corporate, audit, and accounting standards (SOX, GAAP)
• Customer Billing & Invoicing: Oversee accurate and timely billing aligned with contract terms; support AR in resolving issues
• Month End Close: Finalize project margin and accruals; ensure accurate revenue recognition based on Percentage of Completion (POC)
• Oversight: Review and approve purchase orders, invoices, contracts all in line with budget and proper cost allocation. Manage warranties and spare parts, including tracking, coordination, documentation, and timely resolution of warranty-related actions

Qualifications

• Bachelor’s degree in Finance, Accounting, Engineering, Construction Management, or related field
• 5–7 years of project-controls experience in construction, EPC or long term service projects in energy storage industry or similar
• Strong proficiency with NetSuite, Procore, and advanced Excel
• Proven ability to communicate complex ideas simply and drive proactive process improvements
• Takes initiative and contributes actively to a fast-growing, results-driven team

On.Energy is a fast-growing, end-to-end clean energy solution provider that develops, engineers, supplies, constructs, commissions, and operates hybrid and standalone energy storage solutions. We specialize in both front-of-the-meter and behind-the-meter applications for utility and commercial/industrial clients across North and Latin America. With proprietary technology like our On.Command Energy Management System and a presence in the U.S., Mexico, Peru, and Chile, we are rapidly expanding our footprint in the Data Center infrastructure market.

Position Overview:

The Project Executive – Data Center Projects is responsible for the full lifecycle execution of battery energy storage system (BESS) and hybrid energy projects for data centers. This role oversees all phases of planning and execution, ensuring projects are delivered safely, on time, within budget, and in compliance with quality and contractual obligations.

Key Responsibilities:

• Serve as the primary point of contact with the client, maintaining alignment across all project stages.
• Manage the full scope of project execution, including safety, schedule, budget, engineering, quality, commissioning, and compliance. 
• Develop, maintain, and monitor project schedules using recognized tools and methodologies.
• Own project budgets from initial planning to final close-out, including monthly forecasting and variance tracking.
• Identify, assess, and mitigate project risks related to cost, safety, quality, and delivery.
• Lead contract negotiations with EPCs, subcontractors, and third-party vendors.
• Manage all change orders, RFIs, NCRs, PCNs, and VCNs in a timely and traceable manner.
• Oversee invoice review and approvals across all phases of project delivery.
• Ensure project documentation, client reporting, and internal reporting is clear, accurate, and timely.
• Foster strong relationships with suppliers and partners to improve execution quality and delivery performance.
• Support contract close-out and final project documentation handover.

Qualifications:

• Bachelor’s Degree in Engineering or related technical field (required).
• Minimum of 5 years of progressive experience in energy project management, preferably in battery energy storage or related fields.
• Experience with having direct reports as this position will have a Site Project Manager(s) within their organization 
• Demonstrated experience managing EPC contractors, negotiating construction contracts, and overseeing complex infrastructure projects.
• Proficient in project scheduling tools (e.g., MS Project, Primavera) and budget tracking systems.
• Deep understanding of project controls, cost forecasting, and risk management best practices.
• Proven ability to manage multiple complex projects simultaneously.
• Excellent communication and client-facing skills.
• Bilingual English/Spanish preferred (not required).
• Willingness to travel to project sites in the U.S. and Latin America as needed.

Why Join On.Energy:

You’ll be part of a mission-driven team building the clean energy infrastructure of the future. We offer competitive compensation, growth opportunities, and a dynamic international environment where innovation is valued and impact is real.

The Project Controller is responsible for overseeing all financial aspects of service project execution, including preventative and reactive maintenance, performance monitoring, and warranty activities. This role manages budgeting, forecasting, cost control, revenue recognition, cash collection, risk management, and compliance across ongoing service agreements. As a key liaison between Project Management, Finance, and other departments, the Project Controller ensures accurate financial tracking, reporting, and governance throughout the full-service lifecycle, including contract execution, warranty periods, and continuous service delivery.

Key Responsibilities

• Budgeting and Forecasting: Develop and maintain project budgets, update forecasts, and manage cash flow projections
• Cost Control & Analysis: Track project costs, analyze variances, and support corrective action plans
• Project Monitoring & Reporting: Maintain performance dashboards and prepare periodic project financial reports
• Contract: Ensure contract terms are adhered to regarding financial reporting, milestones, liquidated damages and billing
• Risk & Change Management: Assess financial impacts of project changes and integrate approved adjustments into forecasts and billing
• Compliance and Governance: Ensure adherence to corporate, audit, and accounting standards (SOX, GAAP)
• Customer Billing & Invoicing: Oversee accurate and timely billing aligned with contract terms; support AR in resolving issues
• Month End Close: Apply appropriate revenue recognition methods (POC, milestone-based, straight line, time & materials) in accordance with accounting standards
• Oversight: Review and approve purchase orders, invoices, contracts all in line with budget and proper cost allocation
• Claims & Change Orders: Quantify, track, and support financial recovery of claims, variations, and change orders in alignment with contractual terms
• Warranty Management: Track warranty provisions, monitor actual warranty costs against accruals, and ensure appropriate financial reporting during the warranty period
• Commercial & Margin Support: Provide financial insights to improve project profitability and support bid/tender processes with cost benchmarks and risk assessments

Qualifications

• Bachelor’s degree in Finance, Accounting, Engineering, Construction Management, or related field.
• 5–7 years of project-controls experience in service projects
• Strong proficiency with NetSuite, Procore, and advanced Excel;
• Proven ability to communicate complex ideas simply and drive proactive process improvements.
• Takes initiative and contributes actively to a fast-growing, results-driven team

The Associate Asset Manager supports the operational, technical, and compliance oversight of grid-tied energy storage assets. This role focuses on ensuring assets operate safely, efficiently, and in full compliance with contractual, regulatory, and financial obligations.  The Associate Asset Manager works cross-functionally with O&M providers, OEMs, consultants, market operators, and internal stakeholders to protect asset value and optimize long-term performance.

Key Responsibilities:

• Support the Asset Management team in overseeing the day-to-day performance and operation of grid-tied energy storage assets.
• Monitor asset performance, availability, and operational KPIs to ensure assets are operating safely and efficiently.
• Support preparation of internal and external reports related to asset performance, operations, and compliance.
• Coordinate with O&M providers, OEMs, and other vendors to ensure preventive and corrective maintenance activities are completed in accordance with contractual obligations.
• Track asset compliance with regulatory requirements, grid interconnection agreements, permits, and market participation rules.
• Assist in managing relationships with third-party vendors, consultants, and service providers, ensuring performance aligns with contractual service levels.
• Review operational reports, maintenance records, and performance data to identify issues, trends, or opportunities for improvement.
• Support the tracking and resolution of operational incidents, outages, and underperformance events, including assisting with root cause analysis and corrective actions.
• Monitor and track warranty obligations, performance guarantees, and service agreement requirements. 
• Assist with maintaining and organizing asset documentation, including contracts, technical reports, compliance filings, and operational records.
• Review vendor invoices and support expense tracking to ensure alignment with project budgets and contractual agreements.
• Coordinate site visits, inspections, and technical assessments with internal teams and external consultants. 
• Maintain asset management trackers, compliance calendars, and operational databases.
• Identify operational risks and escalate issues to senior asset management staff when necessary.
• Support continuous improvement initiatives related to asset performance, operational processes, and vendor management.

Qualifications:

• Bachelor’s degree in engineering, energy systems, finance, business, or related field (required).
• 1-4 years of experience in renewable energy, energy storage