Fullstack Engineer, RL Environments

Навыки

• Коммуникация
• JavaScript
• LLM
• Room / Realm / CoreData
• Next.js
• Node.js
• Ответственность за результат

О компании и продукте

• 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.
• Studio is one of Mercor's highest-priority initiatives. It is the internal platform that powers every workflow our teams use to generate, manage, quality-review, and deliver data to the world's leading AI labs — and its quality directly shapes the frontier models that billions of people interact with.

Задачи

• Own the Studio platform across the full stack — from contributor-facing and operator-facing React interfaces to the backend APIs and pipelines driving data ingestion, QA review, and AI lab delivery
• Lead engineering best practices across the team, setting the bar for frontend architecture, component design, and performance, and establishing patterns that others can build on reliably
• Build the foundational layer that other teams depend on to support new data types, task formats, and customer configurations quickly and without rework
• Ship high-leverage product features that improve throughput and quality across our core data generation and delivery pipelines
• Translate ambiguous requirements into well-scoped technical solutions through close collaboration with Applied AI researchers, product, design, and operations

Требования

• 5+ years of fullstack engineering experience building and shipping production software
• Deep proficiency in JavaScript/TypeScript (React + Next.js) and a strong grasp of frontend architecture, state management, and design patterns
• Solid backend experience in Python and/or Node.js — experience designing and building relational databases, REST APIs, and async task infrastructure
• Strong design sense and empathy for end-users
• you hold a high bar for usability
• Experience with complex, high-throughput systems — pipelines, large data volumes, or multi-tenant architectures
• High ownership mindset
• able to navigate ambiguity and drive projects from design through delivery
• Strong communication skills and ability to articulate technical and product tradeoffs clearly

Будет плюсом

• Experience building tooling for data labeling, annotation, or human-in-the-loop AI workflows
• Background in design systems, developer-facing APIs, or internal platform engineering
• Exposure to AI tools, LLM-powered products, or real-time data and visualization
• Experience at top-tier tech companies or fast-scaling startups

Условия

• 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

Паспорт вакансии

История публикации

Откуда что взялось

Отмечено то, что вывели мы. Без пометки — значение назвал работодатель.

Почему на этом месте в выдаче

Порядок выдачи объявлен контрактом: свежесть решает между днями, полнота и зарплата — внутри дня.