Javascript Engineer

Posted An Hour Ago
Hiring Remotely in United States
Remote
Entry level
Artificial Intelligence • Software
The Role
Build and maintain scalable JavaScript applications, API integrations, and open-source projects for global clients. Responsibilities include writing and reviewing code, debugging across frontend, backend, database, and network layers, optimizing performance, designing scalable architectures, handling concurrency, documenting technical work, and addressing edge cases. The role is fully remote and includes structured technical growth, peer feedback, and an assessment process involving an OSS hackweek.
Summary Generated by Built In

Locations: Anywhere

TL;DR: Join a career accelerator for developers, built by developers. Alumni have gone on to Amazon, Meta, Google — or founded their own startups.

💼 About the Role

As a JavaScript Engineer, you’ll help scale the engineering teams of our global clients and ship impactful features. You’ll work on everything from modern web apps to API integrations, contributing to projects for YC startups all the way up to unicorns.

GitStart is a community of developers that turns tickets into PRs — fast, high-quality, and at scale.

⭐ Reasons to Join

🌱 Grow your skills – Write and review code from day one, get daily peer and senior engineer feedback, and level up with technical, PM, and communication growth tracks.

🌍 World-class codebases – Condense years of learning into months by working on some of the most advanced and technical JavaScript projects in the world.

🤖 Become AI-native – Get early access to cutting-edge AI dev tools, from GPT-4 to autonomous agents that create tickets based on your PR comments.

👩‍💻 Fully remote + async – Work when, where, and how you want. No micromanagement.

🚀 Gain OSS experience – Build your open-source profile and contribute to important JavaScript and Node.js repositories.

🤝 Build lasting connections – Collaborate with people from 15+ countries through game nights, hackathons, and local meetups.

🎯 Your Technical Skills

  • Mastery in JavaScript (Node.js + modern frameworks like React, Next.js, or Vue.js)

  • Solid grasp of async programming (Promises, async/await, event loop, queues)

  • Strong knowledge of API design (REST, GraphQL, WebSockets) and integration

  • Skilled in data structures and modeling for web-scale applications

  • Deep understanding of performance optimization (caching, load balancing, profiling)

  • Experience with concurrency in JS (worker threads, clustering, async queues)

  • Ability to debug across layers (frontend, backend, database, network)

  • Strong architectural thinking (system design, scalable modular codebases)

Product-wise:

  • Ability to quickly master new domains and stacks

  • Excellent at writing and maintaining technical documentation

  • Attention to detail for edge cases and failure scenarios

😊 You’re a Fit If…

  • You’re hungry to learn and grow

  • You’ve shown extreme ownership in past work

  • You can jump into large unknowns and chip away at problems

  • You learn by building, not just reading

  • You iterate fast and love feedback loops

  • You care deeply about code quality and craftsmanship

🔄 What to Expect

If you pass the application stage:

Technical Assessment → Technical Interview → Hackweek (2–5 issues on a public OSS JS codebase) → Full-time offer

Ready to do the best work of your life? Apply here.

Skills Required

  • Mastery of JavaScript, including Node.js and modern frameworks such as React, Next.js, or Vue.js
  • Strong understanding of asynchronous programming, including Promises, async/await, event loops, and queues
  • Strong knowledge of API design and integrations, including REST, GraphQL, and WebSockets
  • Skill in data structures and modeling for web-scale applications
  • Deep understanding of performance optimization, including caching, load balancing, and profiling
  • Experience with JavaScript concurrency, including worker threads, clustering, and asynchronous queues
  • Ability to debug across frontend, backend, database, and network layers
  • Strong architectural thinking and ability to design scalable, modular codebases
  • Ability to quickly learn new domains and technology stacks
  • Ability to write and maintain technical documentation
  • Attention to detail regarding edge cases and failure scenarios
  • Demonstrated ownership, rapid iteration, learning through building, and commitment to code quality
Am I A Good Fit?
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The Company
49 Employees
Year Founded: 2019

What We Do

GitStart helps engineering teams turn tickets into merge-ready pull requests. Ticket Studio gathers missing codebase and team context and converts vague requests into actionable specifications; Accelerate combines coding agents with senior developer oversight to deliver production-ready changes. Its work spans new features, UI components, testing, bug fixes, and technical-debt cleanup, and it integrates with tools such as Figma, Jira, Linear, and GitHub.

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