Fullstack Engineer, Assesment

Mercor Alabaster

$130K — $180K *
Information Technology
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • 3+ years of professional software engineering experience in production systems
  • Strong backend fundamentals including API design and data modeling
  • Experience with modern frontend frameworks like React/TypeScript is a plus
  • Experience with LLM-powered features in production is a strong advantage
  • Familiarity with AI development tools to enhance software development speed
  • Strong fundamentals in testing, debugging, and performance optimization
  • Excellent product intuition with a focus on user-centric designs

Responsibilities

  • Design, build, and ship backend services and APIs for the assessment platform
  • Own features from product discussions to implementation and release
  • Build evaluation pipelines combining human judgment with AI scoring
  • Contribute to product surfaces of assessment flows for candidates and experts
  • Partner with Product, AI, and Data teams for assessment research implementation
  • Utilize AI coding tools to streamline development
  • Enhance performance, reliability, and observability of assessment infrastructure
  • Continuously improve candidate and expert experiences

Benefits

  • Bi-annual performance bonus structure
  • Generous equity grant vested over 4 years
  • Up to $15k relocation bonus
  • $10K proximity bonus for nearby living
  • $1.5K monthly stipend for meals
  • Free Equinox membership
  • $200 monthly laundry reimbursement
  • $200 monthly personal wellness reimbursement
  • Health, dental, and vision insurance
Full Job Description
About the Role

As a Member of Technical Staff on the Talent Experience team, you'll build the systems that evaluate the skills and expertise of the world's top talent at scale.

Assessment is at the core of how Mercor works: every expert in our network is vetted, matched, and continuously evaluated through our assessment platform. You'll own backend-heavy, full-stack work across this platform-designing evaluation pipelines, building the services that power AI-assisted interviews and skill verification, and shipping the product surfaces that tens of thousands of candidates and experts interact with every day.

You'll work directly with the Assessment product lead on roadmap and execution, with significant ownership from day one. This is a high-leverage role: improvements to assessment quality and throughput compound across everything Mercor does.

You Will
  • Design, build, and ship backend services and APIs that power Mercor's assessment platform at scale.
  • Own features end-to-end-from product discussions and technical design to implementation, testing, and release.
  • Build evaluation pipelines and data models that combine human judgment with AI-powered scoring.
  • Contribute across the stack, including the candidate- and expert-facing product surfaces of assessment flows.
  • Partner closely with Product, AI, and Data teams to translate assessment research into production systems.
  • Leverage modern AI coding tools to accelerate development while maintaining a high engineering bar.
  • Improve the performance, reliability, and observability of assessment infrastructure.
  • Solve real customer problems and continuously improve candidate and expert experience.

What We're Looking For
  • 3+ years of professional software engineering experience building production systems.
  • Strong backend fundamentals: API design, data modeling, distributed systems, and relational databases.
  • Comfortable working across the stack, including modern frontend frameworks (e.g. React/TypeScript) when the product needs it.
  • Experience building or integrating LLM-powered features in production is a strong plus.
  • Comfortable building products using modern AI development tools (e.g. Cursor, Claude Code, GitHub Copilot, Codex, or similar) to accelerate software development.
  • Strong software engineering fundamentals, including testing, debugging, and performance optimization.
  • Excellent product intuition-you enjoy building products that people actually use.
  • Comfortable working in fast-moving environments with evolving priorities.
  • High ownership, curiosity, and a bias toward shipping.


Why this role matters
  • Impact: Build the evaluation systems that decide how tens of thousands of AI experts are matched to the world's most important AI work.
  • Ownership: Join a small, high-velocity engineering team where you'll own features end-to-end and shape the assessment roadmap from day one.
  • Learning: Work alongside world-class engineers, product leaders, and AI researchers building products at the frontier of AI.
  • Growth: Rapid career progression with opportunities to expand ownership as the assessment platform and engineering organization scale.


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

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