Infrastructure Engineer at Mercor (San Francisco, CA)
Mercor· San Francisco, CA· $130k–$500k·
Role details
Equity Grant · Relocation Bonus · Housing Bonus · Meal Stipend · Free Equipment Rental · Health Insurance
Summary
Build and scale cloud infrastructure to support rapid company growth, ensuring high availability and cost-effectiveness. Collaborate with product and research teams to design scalable architectures, automate deployments, and improve system reliability through robust monitoring and CI/CD pipelines.
Job description
ABOUT MERCOR
Mercor's mission is to organize human intelligence to power the AI economy. We're a leading AI data company, building the layer between human expertise and frontier models. Millions of domain experts on the platform are paid over $4 million per day to train frontier AI models. Mercor's APEX benchmark family measures AI's real-world impact on professional work. Mercor Enterprise brings this same infrastructure to Fortune 500 companies: helping companies capture how their best people actually work, translating that expertise directly back into agents.
Mercor is creating a new category of work where expertise powers AI advancement. Achieving this requires an ambitious, fast-paced and deeply committed team. You’ll work alongside researchers, operators, and AI companies at the forefront of shaping the systems that are redefining society. Mercor is a profitable Series C company valued at $10 billion. We work in-person five days a week in our San Francisco, NYC, or London offices.
About the Role
As an Infrastructure Engineer at Mercor, you’ll build and scale the systems that power our rapid growth. You’ll ensure our infrastructure is highly available, cost-effective, and able to handle explosive traffic and compute demands. You’ll work closely with engineers across product, research, and operations to design scalable architectures, streamline deployments, and improve observability.
We’re hiring broadly across Infrastructure: Developer Productivity Engineer and Database Engineer and Platform Engineer. Candidates will be team-matched after the first screen, so we encourage you to apply even if your experience is stronger in one area than another.
What You’ll Work On
- Designing and maintaining core infrastructure across cloud environments.
- Building Infrastructure-as-Code workflows to automate deployments and scaling.
- Improving monitoring, logging, and alerting systems to maintain reliability.
- Managing CI/CD pipelines (Github, Spacelift) to ensure seamless deployments.
- Supporting disaster recovery planning and ensuring high availability of systems.
- Partnering with product and research teams to design architectures that scale with workload demands.
- Identifying and fixing performance bottlenecks in compute, storage, and networking.
What We’re Looking For
- Strong experience with cloud platforms (AWS).
- Proficiency with Infrastructure-as-Code tools (Terraform).
- Deep experience with containers and orchestration (Docker).
- Solid understanding of distributed architectures.
- Programming languages (Python, Go).
- Proven ability to ship reliable infrastructure in production environments.
- Growth mindset and eagerness to thrive in a hyper-growth, high-ownership environment.
Why Mercor
- Impact: Your work powers how the world’s leading AI labs train and test their models.
- Learning: Get early insights into frontier model capabilities months before the market.
- Growth: Work on both infrastructure and research-adjacent projects with fast paths to ownership.
Benefits
- Bi-annual performance bonus structure
- Generous equity grant vested over 4 years
- Up to $15k Relocation bonus
- $10K housing bonus (if you live within 0.5 miles of our office)
- $1.5K monthly stipend for meals
- Free Equinox membership
- $200 monthly laundry reimbursement
- $200 monthly personal wellness reimbursement
- Health, Dental, Vision insurance
Why work at Mercor
- Culture: "Built for people who thrive in high-velocity environments." Values include Intensity, Simplicity, User Obsession, High Standards, Can-Do Attitude, and Time Travelers (thinking ahead).
- Work model: In-person collaboration from offices in San Francisco, New York City, and London. No remote option — the company believes in-person collaboration helps move faster and solve harder problems.
- Engineering culture: Direct exposure to frontier AI research, labs, and startups. Every team works with frontier models daily. Described as "the fastest-growing company in the world."
- Compensation: Generous equity grants, competitive salaries (ranges from $100K–$500K depending on role), and a "proximity bonus" (generous annual housing support).
- Benefits:
- Unlimited paid vacation and sick days
- Free Equinox membership (premium fitness access)
- Monthly wellness stipend and free mental health services
- Monthly food stipend
- 401k with employer match
- Parental leave for both birthing and non-birthing parents
- Team: "A team of ambitious, diverse people who want to work on what matters most." Open roles across Engineering (31 roles), Operations (15 roles), Enterprise (5 roles), Finance (4 roles), and more.