Software Engineer, Applied AI - Systems
Mercor · San Francisco
Applied AIonsitemid-level$220k–$500k
At a glance
Highlights
- Build backend systems that turn human expertise into frontier model training data.
- Own services end-to-end from design through production operation and on-call.
- Scale high-throughput pipelines and job systems as platform volume grows monthly.
What they offer
- Bi-annual performance bonus structure
- Generous equity grant vested over 4 years
- Up to $15k relocation bonus
- $10K housing bonus if living within 0.5 miles of office
- $1.5K monthly stipend for meals
- Free Equinox membership
- $200 monthly laundry reimbursement
- $200 monthly personal wellness reimbursement
- Health, Dental, Vision insurance
Ideal candidate
Backend builder with 2-5 years operating production systems who thrives on ownership, ambiguity, and shipping fast. You care about correctness, reliability, and working in a talent-dense in-person team pushing AI forward.
Requirements
- 2-5 years of professional backend engineering experience building and operating production systems
- Strong fundamentals in data structures, algorithms, concurrency, and clear maintainable code
- Hands-on API design experience with REST, gRPC, or GraphQL including versioning and backward compatibility
- Solid relational data modeling, indexing, query performance, transactions and safe migrations
- Familiarity with NoSQL or key-value stores and when to use them
- Practical distributed systems basics: queues, caching, idempotency, rate limiting and partial failure design
- Experience with data orchestration and workflow systems like Airflow, Temporal, Dagster
- Experience running services in production with containers, CI/CD, monitoring and debugging under traffic
- Comfort with ambiguity and turning loosely defined problems into plans
- Fluency with modern AI dev tools and excitement for agentic development
- Clear written and verbal communication with high ownership and bias to shipping
- remote policy
- In-person 5 days a week
Lab profile
About Mercor
AI data company organizing human expertise to train frontier models for the AI economy.
What they build
- APEX benchmark family
- Mercor Enterprise
- Human expertise training data platform
Known for
- Massive domain-expert network
- Frontier model training infrastructure
- Real-world professional work evaluation
Key facts
- Millions of domain experts on platform
- Pays over $4M per day to experts
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