Expression of Interest

We know that for the most talented engineers, the right opportunity is about more than just a job title, it’s about the right challenge at the right time. Even if our current openings don't perfectly fit your timing and interests today, we still want to hear from you. We view this as a priority pathway to connect with curious, driven MLEs whose unique expertise can help us architect the next generation of planet-scale ML systems. 

At Moloco, our mission is to empower the global digital economy by turning massive first-party data into measurable business outcomes. Whether it’s optimizing real-time bidding for Moloco Ads or building AI-native stacks for Streaming and Commerce, we’re looking for engineers to help us lead the shift toward a more performance-driven, AI-powered internet.

If you’re excited to scale and innovate in a fast-moving environment, share your profile and we will reach out the moment we see a potential match for your experiences and future goals.

About the Role

As a Machine Learning Engineer at Moloco, you will design, train, and deploy the large‑scale models that power our programmatic advertising and commerce media products. You will work at the heart of our real-time bidding and pricing systems, helping shape an end-to-end ML ecosystem that processes billions of daily events. Your work will directly improve marketplace performance for global advertisers and publishers by optimizing for relevance, ROI, and user experience at a scale few companies can match.

The Opportunity

• Architect and iterate on high-performance models that improve ad relevance, click-through rates, and conversion performance.
• Productionize and maintain scalable ML pipelines - from data ingestion to online inference - on top of planet-scale infrastructure.
• Extract insights from massive datasets of user behavior and auction signals to define new features and refine modeling strategies.
• Translate business goals (revenue, ROI, engagement) into concrete modeling challenges and success metrics in collaboration with Product and Data Science.
• Validate innovation through rigorous experimentation, including A/B tests, offline evaluations, and counterfactual analyses.
• Balance marketplace health by implementing models that harmonize advertiser value with a high-quality user experience.
• Enhance system reliability by refining feature stores, monitoring data quality, and establishing robust debugging practices.
• Drive platform evolution, contributing to ML tools and guidelines that increase experimentation velocity and deployment speed.
• Optimize for performance, partnering with Infra teams to reduce latency and improve throughput for low-cost, high-scale decisioning.
• Elevate technical excellence by sharing best practices in modeling and production ML with the broader engineering team.

Expertise We Value:

MLEs at Moloco are hands-on builders of some of the world’s highest-scale ML workloads. They bridge technical innovation with global revenue outcomes, owning the critical systems that define our next generation of machine learning and optimization platforms.

While every journey is unique, we find that the most successful MLEs at Moloco bring a deep technical foundation in the following areas:

• Production ML at Scale: 5-12+ years of experience delivering ML solutions in high-stakes production environments (e.g., Ads, Recommenders, Search, or Marketplaces), with a track record of scaling models for massive throughput and low-latency requirements.
• Algorithmic Mastery: A strong foundation in ML and statistics applied to real-world business challenges, with expertise in areas such as ranking, calibration, exploration-exploitation, causal inference, or multi‑objective optimization.
• Full-Lifecycle Engineering: Deep understanding of the end-to-end ML lifecycle, including data pipelining, feature engineering, model architecture, inference optimization, and the deployment of models into online systems.
• Technical Versatility: Proficiency across a modern ML toolkit (Python, SQL, and frameworks like TensorFlow or PyTorch) and experience leveraging data processing stacks like Spark, Beam, or Flink to deliver results at scale.
• Operational Stewardship: Experience ensuring the long-term health of ML systems in live environments—monitoring performance, diagnosing drift, and iterating based on real-world feedback to maintain measurable impact.
• Technical Mentorship: A passion for advancing the team’s collective bar by sharing best practices for large-scale ML systems and guiding the technical direction of complex machine learning initiatives.

Our Tech Stack:

• Languages: Python, Go, C++
• ML Frameworks: TensorFlow, PyTorch, JAX
• Infrastructure: GCP, AWS, Kubernetes, Spark, BigQuery, BigTable

How You Work: 

• Your ethos is ownership
• You thrive in ambiguity and enjoy partnering with others to shape vague requirements into clear roadmaps with pragmatic tradeoffs.
• You take shared accountability for the end-to-end journey; communicating progress, surfacing risks early, and following through to ensure your work creates measurable value.
• You demonstrate strong judgment under uncertainty. 
• You prioritize based on long-term impact, over short-term noise, making deliberate decisions when information is incomplete.
• You explicitly weigh tradeoffs like speed vs. quality and remain agile enough to adjust your approach thoughtfully as new information/data emerges.
• You lead through clarity and active listening. 
• You reduce ambiguity for the team by asking the right questions upfront, tailor your communication to your audience, document your decisions, and bring helpful structure to complex discussions. 
• You provide thoughtful, evidence-based feedback when needed and align behind decisions once they are made.
• You collaborate early, instead of solving in isolation.
• You build trust across the organization by listening first and navigate conflicting needs with empathy, creating buy-in around priorities and scope. 
• You navigate technical tensions productively, disagreeing thoughtfully while maintaining momentum and strengthening professional relationships.
• You fall in love with the problem, not the solution
• You build for the long run, looking beyond immediate tasks to understand root causes, second-order effects, and the long-term health of our ML ecosystem. 
• When something breaks, you don’t just patch it; you seek structural improvements that prevent recurrence and elevate the technical bar for the entire organization.
• You prioritize customer impact and take action to make it real.
• You prioritize effective solutions that drive business impact over technical elegance, spotting opportunities that others might overlook. 
• You have the initiative to turn ideas into outcomes and the agency to identify and fix gaps, even when they aren’t yet on the formal roadmap.

You can apply for this role through our Open Positions page (or through our Internal Job Board if you are a current employee). We will review submissions on an ongoing basis.

Apex Companies, LLC is seeking a motivated and experienced Structural Bridge Engineer to join our growing Structural Engineering Department in the Pacific Northwest (Seattle or Issaquah). This is an exciting opportunity to work on meaningful infrastructure projects that serve the communities where we live and work. Our team delivers planning, engineering, and construction management services for transportation, industrial, and environmental projects throughout the United States, with a strong emphasis on local and regional work across Washington and Oregon. The projects you’ll support will primarily be located in the Pacific Northwest. If you are passionate about bridge engineering and are ready to take the next step in your career with a firm that values technical excellence and collaboration, we encourage you to apply. 

Position Overview

In this role, you will contribute to the design, analysis, and delivery of transportation structures including bridges, retaining walls, culverts, marine structures, and other miscellaneous structural systems. Depending on experience level, under supervision of more senior engineers you will participate in small to medium-sized structural projects or serve as a technical contributor on larger, multidisciplinary efforts. You will work both independently and collaboratively, with mentorship and support available while maintaining responsibility for structural tasks, coordinating with internal teams. 

Your Responsibilities as a Structural Bridge Engineer:

• Plan, analyze, and design transportation structures, including preparation of engineering calculations and technical reports. 
• Participation is preparation of plans, specifications, and engineer’s cost estimates (PS&E packages) 
• Perform bridge load rating 
• Conduct structural modeling and analysis using industry-standard software 
• Prepare engineering reports and technical memoranda 
• Review shop drawings and provide construction-phase engineering support 
• Assist with or lead construction cost estimation and quantity takeoffs 
• Ensure designs comply with applicable codes, standards, and permitting requirements 
• Collaborate with multidisciplinary teams to deliver integrated, high-quality solutions 

What we're looking for:

• Bachelor of Science in Civil Engineering (BSCE) or related, MS in Structural Engineering preferred 
• Professional Engineer (PE) license or ability to obtain within 12 months
• 4+ years of progressively responsible structural design experience 
• Experience in concrete, steel, and/or prestressed concrete bridge design is preferred 
• Working knowledge of AASHTO LRFD Bridge Design Specifications 
• Familiarity with Washington State and/or Oregon transportation agency standards is preferred 
• Experience with structural analysis software such as CSiBridge, SAP2000, LPILE, RISA3D, or similar 
• Strong written and verbal communication skills 
• Ability to manage structural tasks under supervision 
• Working knowledge of AutoCAD (experience with MicroStation is a plus) is preferred 

Why you'll love working for us:

• Opportunity to work on impactful regional infrastructure projects 
• Supportive team environment with mentorship and professional growth opportunities 
• Clear path for career advancement and leadership development 
• Company-subsidized medical and dental.
• Company-paid life, short, and long-term disability.
• 401k match, tuition assistance, and more.
• Cross-training and the ability to work on a variety of projects.
• Performance-based bonuses or other incentives.
• Working with the best and brightest in the industry.
• 2,000+ employee national firm with 70+ locations across the US.

Req ID: 11350

Voyager is an innovative defense, national security and space technology company committed to advancing and delivering transformative, mission-critical solutions. We tackle the most complex challenges to unlock new frontiers for human progress, fortify national security, and protect critical assets to lead in the race for technological and operational superiority from ground to space. 

Forge the Future: Join Voyager Technologies 

The future belongs to those who build it. At Voyager Technologies, we’re building technologies that protect lives, expand frontiers and prepare us for what’s next. And we’re doing that with people who are wired to solve, build, adapt and lead. These roles are not for the faint of heart.  

You’ll help lay the foundation for humanity's future. Join a culture where innovation thrives, curiosity is rewarded, and impact is real. We’re a company of doers, thinkers and builders, united by purpose and grounded in reality. 

If you want to put your skills to work where the stakes are real and the mission is bigger than any one person, forge the future with Voyager. 

____________________________________________________________________________________ 

Job Summary: 

We are seeking a Senior Software Engineer – Agentic Computational Engineering Applications Lead (Mechanical/Propulsion/PCB) to serve as the senior domain leader for AI-driven mechanical, propulsion, and/or PCB design within the ACE team. In this role, you will lead applications that generate and evaluate designs for systems such as Hall effect thrusters, solid rocket motors, nozzles, structural hardware, and radiation-hardened electronics.

You will bridge computational physics, CAD automation, and manufacturing constraints to ensure that AI-generated designs are physically valid and buildable. You will own a critical slice of the ACE application roadmap and help mentor a small group of exceptional engineers. This role is for someone who loves both hard physics, hard software, and hardware, and who is motivated by compressing the path from “idea” to “hot fire” by orders of magnitude.

You will be joining the Agentic Computational Engineering (ACE) team, a specialized group within our Advanced Technology Development organization. ACE is responsible for building Voyager’s Generative Engine – the AI-native platform that compresses complex hardware development cycles from years to days. We design agentic AI systems that pair deeply with physics simulation, test data, and modern manufacturing so that Design for Manufacturing (DfM), Design for Assembly (DfA), and Design for Test (DfT) are built into the very first line of code and the very first sketch of a design.

Responsibilities: 

• Own the roadmap for AI applications that generate 3D geometry (STEP/Parasolid) and/or end-to-end PCB design from performance requirements and constraints.

• Lead development of automated loops between MCAD and ECAD agents and simulation agents (CFD, FEA, PIC, thermal, SI/PI, etc.), including meshing, solving, and post-processing.
• Embed manufacturability constraints (e.g., tool access, stock sizes, 5-axis machinability, additive manufacturing limits, via drilling constraints, etc.) into design checks and AI behavior.
• Develop and apply topology optimization and shape optimization workflows (or invent new generative methods) that output usable, production-ready geometry.
• Collaborate with propulsion, mechanical, electrical, and manufacturing engineers to validate AI-generated designs against test data and operational constraints.
• Mentor and guide more junior engineers and AI specialists working on mechanical, propulsion, electrical, and/or PCB applications.
• Partner with the Agentic Platform Lead to ensure application requirements inform platform capabilities and performance priorities.
• Champion an experimentation culture around simulation speedups, new physics models, and novel generative design workflows.

Required Qualifications:  

• Master’s degree + 5 years, or PhD + 3 years, in Mechanical or Aerospace Engineering, Computational Engineering, Electrical Engineering, Physics, or a related field; or equivalent practical experience.

• Experience designing and analyzing real hardware that flies or operates in demanding environments (propulsion, structures, mechanisms).
• Strong programming skills in Python or C++, with experience automating CAD and CAE tools (e.g., SolidWorks, Creo, Ansys, COMSOL, Star-CCM+) or experience with ECAD tools (Altium, etc.).
• Hands-on familiarity with CFD, FEA, SPICE, or related numerical simulation methods.
• Proven ability to lead cross-functional engineering projects and mentor junior engineers.
• Evidence of a “builder” mindset: side projects, labs, or prior roles where you pushed tools, simulations, or hardware well beyond what was handed to you.

Preferred Qualifications:  

• In-depth knowledge and experience across both PCB and mechanical design would make for the strongest candidates.

• Experience with topology optimization, shape optimization, or differentiable design workflows and ideas on new generative approaches that will push the boundaries of what is possible.
• Experience with auto-routing, automated schematic generation, or other automation approaches for electronics design.
• Practical experience with machining, 3D printing, or other fabrication techniques.
• Background in plasma physics, fluid dynamics, or thermodynamics as applied to propulsion.
• Experience working with AI or automation to accelerate CAD/CAE/EDA workflows.
• A personal history of building things for fun—rockets, race cars, robots, or any other kinetic or electrical systems.

Voyager offers a comprehensive, total compensation package, which includes competitive salary, a discretionary annual bonus plan, paid time off (PTO), a comprehensive health benefit package, retirement savings, wellness program, and various other benefits. When you join our team, you’re not just an employee; you become part of a dynamic community dedicated to innovation and excellence. 

To conform to U.S. Government space technology export regulations, including the International Traffic in Arms Regulations (ITAR) you must be a U.S. citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State. 

Voyager is an Equal Opportunity Employer. Employment decisions are made without regard to race, color, religion, national or ethnic origin, sex, sexual orientation, gender identity or expression, age, disability, protected veteran status or other characteristics protected by law.  

Minority/Female/Disabled/Veteran 

The statements contained in this job description are intended to describe the general content and requirements for performance of this job. It is not intended to be an exhaustive list of all job duties, responsibilities, and requirements. This job description is not an employment agreement or contract. Management has the exclusive right to alter the scope of work within the framework of this job description at any time without prior notice. 

California pay range

$165,000 - $250,000 USD

Washington DC pay range

$165,000 - $250,000 USD

Washington pay range

$165,000 - $250,000 USD

Please click “Apply” to submit your application. 

The salary range represents the base salary range for this position. Actual compensation will vary and may be above or below the range based on various factors. Those include but are not limited to location, experience, and performance.

Voyager offers a comprehensive, total compensation package, which includes competitive salary, a discretionary annual bonus plan, paid time off (PTO), a comprehensive health benefit package, retirement savings, wellness program, and various other benefits. When you join our team, you’re not just an employee; you become part of a dynamic community dedicated to innovation and excellence. 

To conform to U.S. Government space technology export regulations, including the International Traffic in Arms Regulations (ITAR) you must be a U.S. citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State. 

Voyager is an Equal Opportunity Employer. Employment decisions are made without regard to race, color, religion, national or ethnic origin, sex, sexual orientation, gender identity or expression, age, disability, protected veteran status or other characteristics protected by law.  

Minority/Female/Disabled/Veteran 

The statements contained in this job description are intended to describe the general content and requirements for performance of this job. It is not intended to be an exhaustive list of all job duties, responsibilities, and requirements. This job description is not an employment agreement or contract. Management has the exclusive right to alter the scope of work within the framework of this job description at any time without prior notice. 

As a Mechanical Engineer, Vehicle Structures at Carbon Robotics you will play a key role in developing new vehicle structures for robotic systems that will radically change how our customers do business. You will immediately bring your significant experience architecting, designing, analysing, prototyping, producing, and supporting new products to multiple cornerstone programs currently under development. As part of a growing Mechanical Engineering team you’ll help mentor and grow junior engineers to help ensure the whole team succeeds. 

What you’ll do:

• Work on a fast-paced, multi-disciplinary team to ensure the successful development, deployment, and sustainment of multiple revolutionary robotics products.
• Own significant elements of the architecture, design, analysis, testing, and support of the robotic vehicles primary structures, aesthetic body panels, and suspension/steering system integration. 
• Define requirements for, support, and at times lead structural qualification testing. 
• Lead initial production builds with the manufacturing team at our Richland, Washington facility. 
• Own Standards and Compliance scoping and documentation for the products you design. 

Knowledge, Skills, and Abilities for Success:

• 5+ years of experience designing, testing, producing and supporting complex mechanical and structural parts, assemblies, and systems in the automotive, agricultural, aerospace, or equivalent markets. 
• High level of proficiency in the use of CAD tools such as Solidworks and Analytical tools such as Ansys Mechanical and Ansys Motion. 
• Extensive knowledge of how to efficiently and effectively configure FEA simulations while knowing how to properly interpret the results and what degree to trust them. 
• Experience analyzing structural hardware and mounting systems for fatigue life, durability, and field reliability.
• Extensive experience designing and producing sheet metal, bar stock, machined, weldments, thermoplastic and composite parts. 

• Extensive experience designing for harsh outdoor environments to protect against water ingress, rust, corrosion, and shock/vibe damage.

• Ability to quickly prototype, troubleshoot, and iterate designs with both deep ownership and collaboration. 
• Highly desired to have past experience working with a test engineering organization to set up, operate, and analyze results from structural qualification testing. 
• Solid familiarity with SAE, DOT, and other applicable codes and compliance to them. 
• Highly desired to have past experience as a Responsible Engineer. 
• Demonstrated ability to work with direct and matrixed management to achieve timely objectives. 
• Desire to support products in the production and field environments and a high level of comfort working directly with customers. Willingness to travel ~10% of the time to these locations. 
• BS+ in Mechanical Engineering or equivalent.

As a Mechanical Engineer, Vehicle Thermal Management Systems at Carbon Robotics, you will play a key role in developing the mechanical systems that enable our diesel-electric platform and enhance the operation of our Laser Weeding systems. You will immediately bring your significant experience designing and integrating thermal management systems into vehicles while balancing performance, reliability and serviceability of your solutions to revolutionize agricultural vehicles. 

What you'll do:

• Define and select core off the shelf, semi-custom components and consumables of the thermal management system including chillers, radiators, oil coolers, heat exchangers, housings, pumps and refrigerant selection.
• Architect complete cooling systems for diesel engines, generators, motors, inverters, batteries, hydraulics, laser, computer, and auxiliary systems operating in rugged, dusty, high-load environments.
• Perform thermal load analysis, pressure drop calculations, flow distribution studies, and heat rejection tradeoffs across multiple operating modes and duty cycles.
• Design and review coolant routing, hose and hard-line layouts, fittings, and sealing strategies for reliability in agricultural environments. 
• Use CAD and analytical tools to support thermal, structural, and vibration simulation of thermal system components and mounting systems.
• Lead thermal validation testing including thermal soak, heat rejection testing, fouling evaluation and field data correlation.
• Support prototype builds, field trials, and production issues, diagnosing and resolving thermal performance gaps. 
• Act as a Responsible Engineer or thermal subsystem owner, working with suppliers to define requirements and validate solutions.

Knowledge, Skills, and Abilities for Success:

• 5+ years of experience designing and validating thermal management systems for automotive, off-highway, agricultural, or heavy equipment applications.
• Proficiency in CAD (SolidWorks) and Ansys CFD or equivalent tools for thermal analysis.
• Deep experience with radiators, oil coolers, charge-air coolers, chillers, pumps, fans, coolant circuits, refrigerant selection rationale and thermal interface materials.
• Experience integrating thermal hardware into vehicles, including packaging, mounting, serviceability, and durability considerations.
• Knowledge of automotive/agricultural durability requirements and validation testing procedures highly desired. 
• Familiarity with supplier-provided thermal data, test reports, and performance maps, with the ability to challenge and validate assumptions.
• Highly desired to have past experience as a Responsible Engineer or IPT lead. 
• Willingness to travel ~10% of the time to support products in the production & field environments with a demonstrated ability to work directly with internal and external stakeholders/customers
• BS+ in Mechanical Engineering, or related, with focus on machine design, automotive engineering, or related field.

As a Hardware Test & Verification Engineer at Carbon Robotics you will work with the designers on the Mechanical and Electrical Engineering teams to develop verification and validation plans and then test components and systems to ensure high product reliability from day one. You will provide expertise while working closely with MEs and EEs to determine the appropriate methods of compliance and test techniques to ensure our electrical, including PCBs, and structural components are suitable for the demanding applications of low maintenance agricultural robots.  You will then be responsible for setting up, running, and analyzing the results of a multitude of different types of tests either at our facility or at test houses. Above all, you’ll do whatever it takes, including travel to customer farms and our manufacturing facilities, to ensure our customers have safe and reliable products that meet or exceed their expectations. 

What you’ll do:

• Work on a fast-paced, multi-disciplinary team to ensure the successful development, deployment, and sustainment of multiple revolutionary robotics products.
• Lead component level qualification test design and execution 
• Determine target test environments, write test and compliance plans, operate test equipment, and coordinate with external test houses.
• Specific areas of testing include Shock/Vibe, Climatic, Power Distribution Testing, PCB specific testing, and structural testing. 
• Manage component level acceptance test design and vendor management
• Coordinate with vendors to ensure appropriate component level acceptance level test plans are in place and are followed. Perform audits as necessary. 
• System level test design and execution 
• Develop test plans and execute full system integrated testing to ensure functionality, performance, and reliability meet product requirements. 
• Standards and Compliance scoping and documentation
• Determine regulations/standards that apply to our products in the targeted sales jurisdictions and work with the HW team to develop compliance packages.  
• Support safe system design and compliance with safety regulatory bodies. 

Knowledge, Skills, and Abilities for Success:

• 4+ years experience in both hands-on verification, validation, and testing roles. 
• Extensive experience setting up, operating, and analyzing results from shock/vibe, structural, climatic, power distribution, and PCB specific test equipment. 
• Extensive experience collaborating with ME and EE design engineers to evaluate their designs, build verification and validation plans and track progress to those plans.  
• Experience coordinating with external test houses. 
• Experience working with component vendors to implement and/or monitor their pre-delivery acceptance testing. 
• Good understanding of underlying ME and EE design principles and hands on experience with structural, electronics, and PCB troubleshooting.
• Ability to comfortably use CAD and PCB design tools such as Solidworks and Altium. 
• Solid familiarity with applicable UL, IPC, and SAE codes and compliance to them. 
• Effective verbal and written communication skills, including writing test and compliance reports.
• Demonstrated ability to work with direct and matrixed management to achieve timely objectives. 
• 20%+ travel to test houses, in field testing units, and vendors expected
• BS in Electrical Engineering and/or Mechanical Engineering