Full Stack Engineer

Alignerr Corp.; Seattle (WA); Remote; USD 83,000 - 165,000; Full time

Job summary

Alignerr is seeking a senior Full Stack Engineer to help train AI models by evaluating AI-generated code and reviewing system designs. This is a fully remote hourly contract for 10–40 hours per week, ideal for engineers who value flexible schedules and meaningful, rigorous work.

You’ll contribute across the stack (React/Vue on the frontend; Node, Python, and C# on the backend), design tooling for data annotation, and provide actionable feedback to improve scalability and performance.

Qualifications

• 3–5+ years of professional full-stack engineering experience.
• Proficient across the stack: JavaScript/TypeScript, Python, and ideally Rust.
• Strong grasp of system design principles and scalable architecture.
• Exceptional written communicator with concise explanations.
• Master's or PhD in Computer Science or related field from a reputable university.

Responsibilities

• Evaluate AI-generated code across the full stack — frontend (React, Vue) and backend (Node, Python, C#) for correctness, efficiency, and best practices.
• Design and build full-stack tooling to support AI data annotation and quality control workflows.
• Review complex system architectures and provide detailed, actionable feedback on scalability and performance.
• Identify subtle bugs, edge cases, and architectural weaknesses in AI-produced code.
• Document your evaluations clearly and consistently using structured formats.
• Work independently and asynchronously — on your own schedule.

Skills

JavaScript/TypeScript

Python

Rust

Full-stack

System design

Written communication

Independent work

Education

Master's or PhD in Computer Science

Tools

React

Vue

Node.js

C#

Docker

Job description

About The Role

What if your full-stack expertise could directly shape how AI writes and understands code for millions of developers around the world? We're looking for experienced Full Stack Engineers to evaluate AI-generated code, review system designs, and help train the next generation of AI models — across the entire web stack.

Full Stack Engineer (AI Training)

This is a fully remote, flexible contract role built for senior engineers who want to do something meaningfully different with their skills. You'll work alongside world-leading AI research labs, applying your real-world engineering experience to make AI smarter, safer, and more technically rigorous.

• Organization: Alignerr
• Type: Hourly Contract
• Location: Remote
• Commitment: 10–40 hours/week

What You'll Do

• Evaluate AI-generated code across the full stack — frontend (React, Vue) and backend (Node, Python, C#) — for correctness, efficiency, and best practices
• Design and build full-stack tooling to support AI data annotation and quality control workflows
• Review complex system architectures and provide detailed, actionable feedback on scalability and performance
• Identify subtle bugs, edge cases, and architectural weaknesses in AI-produced code
• Document your evaluations clearly and consistently using structured formats
• Work independently and asynchronously — on your own schedule

Who You Are

• 3–5+ years of professional full-stack engineering experience writing production-grade code
• Proficient across the stack — JavaScript/TypeScript, Python, and ideally Rust
• Strong grasp of system design principles, performance trade-offs, and scalable architecture
• Exceptionally clear written communicator — you can explain complex technical decisions concisely
• Master's or PhD in Computer Science or a related technical field from a reputable university
• Self-directed and reliable when working independently without close supervision

Nice to Have

• Experience with distributed systems, developer tooling, or AI/ML workflows
• Familiarity with AI model evaluation or data annotation pipelines
• Background in open-source development, technical writing, or code review at scale

Why Join Us

• Work on cutting-edge AI projects alongside the world's leading research labs
• Fully remote and flexible — work when and where it suits you
• Freelance autonomy with the structure of meaningful, technically rigorous work
• Make a direct, tangible impact on how AI understands and generates code at scale
• Potential for ongoing work and contract extension as new projects launch