WHO WE ARE  

Factorial Energy is a pioneering U.S.-based solid-state battery company driving the future of energy storage and electrification. Partnered with global leaders including Mercedes-Benz, Stellantis, Hyundai, and Kia, Factorial is at the forefront of developing next-generation e-mobility platforms for commercial, defense, and consumer applications—spanning electric vehicles (EVs), drones, eVTOL aircraft, power tools, marine systems, robotics, and more. The company has achieved multiple industry firsts, including being the first to power a demonstration vehicle with a global OEM (Mercedes-Benz) which achieved over 1,200 km (749 mi) of range, the first to earn UN 38.3 certification for automotive-sized solid-state cells, and the first to deliver B-samples of automotive-sized solid-state batteries to major OEMs. 

The Opportunity

Factorial is looking for an All-Solid-State Battery Anode Wet & SE Slurry Coating Process Engineer responsible for the wet slurry coating process and equipment development for anode and sulfide-based solid electrolyte (SE) applications. We leverage cutting-edge wet electrode manufacturing to revolutionize all-solid-state battery performance, cost, and scalability. This role requires experience in close cooperation with internal teams and external partners. This candidate will be involved from the beginning of process optimization for R&D projects, pilot line scale-up, and through to low/high-volume production. The candidate must demonstrate excellent written and verbal communication skills to facilitate efficient communication between various departments/vendors.

Duties and Responsibilities 

Duties and responsibilities include, but are not limited to: 

All-Solid-State Battery Anode Wet & SE Slurry Coating Process Development

• Lead R&D efforts to design, optimize, and scale wet slurry coating processes for ASSB anode and sulfide SE applications.
• Develop novel slurry formulations and coating strategies to enhance electrode-electrolyte interfacial compatibility, ionic transport efficiency, and cycling stability.
• Establish critical process parameters (e.g., slurry dispersion, viscosity control, coating speed, drying profiles) to meet all-solid-state battery performance specifications.
• Address key wet coating challenges specific to ASSB: solvent selection, slurry sedimentation, SE-solvent compatibility, and interfacial side reaction control.

Quality & Yield Improvement

• Identify root causes of wet coating defects (e.g., pinholes, thickness non-uniformity, cracks, lithium dendrite penetration) and implement corrective actions.
• Utilize statistical analysis (SPC, DOE) to drive yield improvements and reduce process variability.
• Collaborate with PD/QA to define testing protocols and quality standards for wet-processed all-solid-state electrodes.

Production Efficiency & Scalability

• Optimize manufacturing workflows to increase throughput and reduce unit production costs.
• Design experiments to validate process scalability from lab to pilot line to mass production.
• Troubleshoot equipment/process issues to minimize downtime.

Next-Generation Equipment Development

• Partner with equipment vendors to conceptualize, prototype, and validate next-gen wet coating electrode machinery.
• Define technical specifications for new equipment (e.g., vacuum-integrated drying systems, solvent recovery units).
• Drive innovation in automation, in-line monitoring, and Industry 4.0 integration.

Must Have Qualifications

Technical Expertise:

• 3+ years of hands-on experience in wet electrode coating manufacturing for lithium-ion batteries, sulfide electrolyte system experience highly preferred.
• Deep knowledge of wet process steps: slurry preparation (dispersion, deaeration), precision coating (doctor blade/slot-die), vacuum drying, calendaring, and lamination.
• Proficiency in material characterization (SEM, XRD, adhesion testing) and data analysis tools (JMP, Minitab).

Process & Quality Tools:

• Mastery of DOE, SPC, FMEA, and Six Sigma methodologies.
• Experience scaling processes from R&D to high-volume production.

Equipment & Innovation:

• Proven ability to collaborate with equipment suppliers on custom solutions.
• Familiarity with ASSB-specific process challenges (moisture control, interfacial stability, mechanical pressure sensitivity).

Education & Collaboration:

• Master's in chemical/Materials/Mechanical Engineering or related field.
• Strong cross-functional skills to work with R&D, production, and supply chain teams.

Nice to Have Qualifications

Preferred Qualifications:

• Hands-on experience with sulfide solid electrolyte systems or halide electrolyte systems.
• In-depth understanding of binder systems (PVDF, CMC/SBR) and conductive additives behavior in wet coating processes.

WHO WE ARE  

Factorial Energy is a pioneering U.S.-based solid-state battery company driving the future of energy storage and electrification. Partnered with global leaders including Mercedes-Benz, Stellantis, Hyundai, and Kia, Factorial is at the forefront of developing next-generation e-mobility platforms for commercial, defense, and consumer applications—spanning electric vehicles (EVs), drones, eVTOL aircraft, power tools, marine systems, robotics, and more. The company has achieved multiple industry firsts, including being the first to power a demonstration vehicle with a global OEM (Mercedes-Benz) which achieved over 1,200 km (749 mi) of range, the first to earn UN 38.3 certification for automotive-sized solid-state cells, and the first to deliver B-samples of automotive-sized solid-state batteries to major OEMs.

THE OPPORTUNITY  

We are looking for a Manager / Sr. Manager / Director, Process Development who will lead the equipment engineering and process development function for Factorial’s whole-cell FEST manufacturing operations in South Korea. Own the full lifecycle of FEST cell-process equipment — concept, design, pilot-line deployment, production ramp, and standardization — and partner with cell product development, manufacturing, quality, and R&D to translate breakthroughs into scalable, production-ready processes.

DUTIES AND RESPONSIBILITIES  

Duties and responsibilities include, but are not limited to:  

• Equipment development: Define specifications, performance requirements, and acceptance criteria; partner with vendors to design and procure custom tooling and automation; drive continuous improvement of yield, throughput, and process capability. 
• Pilot-line upgrades: Assess pilot-line capabilities versus production requirements, develop upgrade roadmaps, and manage projects through installation, qualification (IQ/OQ/PQ), and sign-off with minimal disruption.
• New equipment introduction: Monitor industry advances, lead proof-of-concept evaluations, and pioneer proprietary equipment for FEST processes where no off-the-shelf solution exists. Manage IP protection for novel innovations.
• Trial runs and capacity ramp: Plan trial runs, define success criteria, coordinate cross-functional readiness, and lead systematic process qualification and capacity ramp aligned with OEM program milestones.
• Documentation and standardization: Develop SOPs, work instructions, and knowledge-management systems; standardize FEST manufacturing processes across pilot and production lines for repeatability, traceability, and automotive-grade quality readiness.
• Team leadership: Build and mentor a high-performing technical team; champion engineering rigor, continuous improvement, and cross-site knowledge sharing. 

QUALIFICATIONS  

• Must have direct hands-on experience building small-format pouch cells for UAV/drone applications. Candidates must have led or substantially contributed to the development and manufacturing of small-format lithium-based pouch cells specifically deployed in unmanned aerial vehicles (UAV) or drone platforms. Candidates without demonstrable UAV/drone small-format pouch cell experience will not be considered.
• Bachelor’s degree or higher in Mechanical Engineering, Chemical Engineering, Materials Science, or a related field; advanced degree preferred.
• 5+ years of experience in battery manufacturing process and equipment development; experience with FEST cells, small-format pouch cells, or dry-electrode processes strongly preferred.
• 5+ years in a management or technical leadership role overseeing equipment engineering or process development teams.
• Demonstrated experience with full equipment lifecycle management: concept, specification, procurement, installation, qualification (IQ/OQ/PQ), and ramp.Proven track record in pilot-to-production scale-up and capacity ramp.
• Strong written and verbal communication skills in English are required. This role works closely with the U.S. team; English is the primary working language. Korean language ability is not required.
• Fully on-site in South Korea, with occasional late-night overlap to align with U.S. counterparts.
• Familiarity with automotive quality frameworks (IATF 16949, APQP, PPAP) preferred. 

At Imply, our mission is to empower people and organizations to achieve more with their data. We believe that better insights lead to better decisions, and that the right technology can remove barriers, spark innovation and create lasting impact. In addition to our successful database business, we’re building the industry’s first observability warehouse, Imply Lumi. Built by the creators of Apache Druid, Lumi lets organizations store more data, support more use cases and spend less for observability. Imply Lumi is a high-performance, cost-efficient data layer built to decouple existing observability tools with zero disruption.

In this role, you will help redefine what is possible with observability and security data. As part of the Customer Experience Team you will play an important role in bringing Imply Lumi to life. Lumi delivers lightning fast queries, significant cost savings and seamless integration with leading observability technologies while giving customers the freedom to innovate without vendor lock-in. You will partner closely with customers to understand their challenges, design tailored solutions and demonstrate how Lumi can unlock new levels of speed, scale and value from their data.

Backed by leading investors including a16z and Bessemer Venture Partners, Imply is on a fast growth trajectory, transforming how organizations manage and gain insights from their observability and security data. Our customers, including Pepsi, Reddit, Roblox, Salesforce, and others, rely on our technology to power faster decisions, reduce costs, and unlock new possibilities. Come join a team of innovators and problem-solvers who are reshaping the future of data!

Key Responsibilities

• Partner with the sales team in pre-sales engagements to design and present solutions for Imply Lumi that address customer needs in observability, SIEM, and adjacent analytics use cases. 
• Leverage deep expertise in Splunk and familiarity with related tools such as Cribl, Grafana, and Elastic to ensure seamless integration into customer environments.
• Lead technical discovery, proof-of-concept, and pilot deployments, ensuring smooth onboarding, measurable value delivery, and alignment with customer business objectives to drive new and expansion opportunities.
• Provide advanced troubleshooting during pre-sales and early adoption phases, building customer trust through technical expertise, responsive engagement, and a commitment to long-term success.
• Serve as a trusted advisor by identifying optimization opportunities, uncovering additional use cases, and sharing best practices for managing observability and security data at scale.
• Collaborate with product management and engineering to share customer feedback, address solution gaps, and influence the Lumi roadmap to improve product-market fit.
• Help achieve revenue targets set by the company
• Keep opportunity information up-to-date in Salesforce and other tools in partnership with the Sales team

Required Skills & Experience

• 3+ years of experience with observability, SIEM, or analytics platforms, including customer-facing work in pre-sales and/or early adoption phases.
• Strong knowledge of observability architectures, log and metrics pipelines, and related tools, with strong Splunk knowledge and familiarity with complementary technologies such as Cribl, Grafana, or Elastic preferred.
• Hands-on experience designing and deploying solutions in at least one cloud platform (AWS, GCP, or Azure), along with working knowledge of SQL, SPL, and a programming language such as Python or Java.
• Demonstrated ability to proactively lead deep discovery, identify opportunities, and deliver enterprise solutions that integrate into existing observability stacks while addressing customer challenges and delivering measurable value.
• Detail-oriented with strong ownership, accountability, and communication skills, able to explain complex concepts clearly to both technical and non-technical audiences and collaborate effectively with diverse teams.
• Background in bringing new or emerging products to market, including guiding early customer adoption and shaping product fit.

Bonus Points

• Experience with large-scale log and metrics data storage, compression, and query optimization.
• Familiarity with security analytics, incident response workflows, compliance-related data requirements, and containerized deployments using technologies such as Kubernetes and Helm.
• Familiarity with structured sales methodologies such as MEDDIC to support effective pre-sales engagement and value-based selling.
• Passion for mentoring team members and contributing to a culture of technical excellence and customer success.

What We Offer

• Private Medical, Dental & Vision Offerings
• Maternity/Paternity Leave
• Fertility Coverage
• Mental Health Support
• Occupational Health & Safety Insurance Plan
• Social Insurance Scheme
• Pension Plan
• 15 Days Paid Leave (Accrued)
• Home Office Equipment Reimbursement

Individual compensation will be determined based on the candidate's experience and qualifications aligned with Imply’s internal leveling guidelines and benchmarks. This role is also eligible to participate in Imply’s equity plan subject to the terms of the applicable plans and policies.

Don’t meet every single requirement? Studies have shown that certain minority groups are less likely to apply to jobs unless they meet every qualification. At Imply, we are dedicated to building a diverse, inclusive and authentic workplace. If you’re excited about this role but your past experience doesn’t align perfectly with every qualification in the job description, we encourage you to apply anyways. You may be just the right candidate for this or for other roles in the future. 

Imply is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to age, color, gender identity or expression, marital status, national origin, disability, protected veteran status, race, religion, pregnancy, sexual orientation, or any other characteristic protected by applicable laws, regulations and ordinances.

Please note, applications and candidate submissions are subject to our privacy policy and, for California residents, the CCPA terms available at https://imply.io/privacy.

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