Software Engineer, Applied AI at Mercor | NY, US | Rezi

Software Engineer, Applied AI at Mercor

Software Engineer, Applied AI

Mercor · NY, US

1 weeks ago

Software Engineer, Applied AI

Mercor · NY, US

11 days ago
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About the Role

As a Software Engineer on Applied AI, you’ll build, deploy, and operate systems that sit directly between frontier AI research and data delivery. This is a high-ownership, deeply technical role where you’ll work through ill-defined problems, prototype quickly with researchers and customers, and take systems from early experiments to reliable, scalable production. You’ll own projects end-to-end, spanning requirements gathering, creating data creation pipelines, and improving model-adjacent infrastructure, while partnering closely with frontier AI labs and Mercor’s internal teams to ship high-impact applied AI solutions.

Responsibilities

  • Partner closely with frontier AI labs to understand their data, post-training, and evaluation needs
  • Build and operate scalable data pipelines for post-training workflows and model evaluations
  • Design and build scalable systems for synthetic data generation and data quality
  • Work directly with customers to understand requirements and develop technical solutions
  • Prototype new data types, benchmarks, and evaluation frameworks
  • Lead technical discussions with customers

Requirements

  • Strong backend engineering fundamentals in a modern language (Python, Go, Rust, etc.)
  • Experience with model training and inference
  • Strong grounding in statistical analysis and experimental design for measuring model performance and improvements
  • Familiarity with evaluation methods for large language models
  • Comfort working through ambiguity and shipping iteratively
  • Enjoys ownership and customer-facing problem solving
  • Thinks entrepreneurially and moves quickly
  • Balances speed with engineering rigor
  • Communicates clearly with technical and non-technical users

Location

  • San Francisco
  • NYC
  • London

Work Type

  • In-person five days a week

Benefits

  • Bi-annual performance bonus structure
  • Generous equity grant vested over 4 years
  • Up to $15k Relocation bonus
  • $10K proximity 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

About the Company

  • 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.