Frontend Software Engineer

HyperDev

20h

About The Position

We’re looking for a Frontend Engineer to help evolve HyperDev’s AI developer platform. You’ll build and improve the interfaces developers use to express ideas, interact with AI, review changes and stay in control of their code. Working closely with the founders and engineering team, you’ll deliver new features, refine existing workflows and strengthen the frontend as the product grows. You’ll contribute to technical decisions, improve shared components and help maintain a consistent, reliable user experience. This role suits someone who combines strong React and TypeScript skills with attention to usability and visual detail. You should enjoy understanding an existing product, identifying opportunities for improvement and taking features from concept through to release.

Requirements

• Minimum: 4+ years of commercial frontend development experience, with substantial hands-on experience using TypeScript and React.
• Strong HTML and CSS skills, including responsive layouts, semantic markup and accessible interaction patterns.
• A track record of shipping and maintaining production web applications.
• Experience designing reusable components and managing complex application state.
• Experience integrating APIs and building reliable interfaces around asynchronous data.
• Strong attention to interaction design and visual detail, with the ability to translate designs or early concepts into usable interfaces.
• Experience writing meaningful component, integration and end-to-end tests using tools such as React Testing Library, Vitest or Playwright.
• Confidence diagnosing frontend bugs and performance issues using browser developer tools.
• Familiarity with Git/GitHub workflows, code reviews and CI/CD.
• Practical experience using AI coding assistants, with sound judgement about correctness, security and maintainability.
• Ability to work independently, communicate trade-offs clearly and collaborate in a fast-moving startup.

Nice To Haves

• Experience building developer tools, code editors or other complex interactive applications.
• Experience with AI-powered interfaces, streamed responses, WebSockets or server-sent events.
• Familiarity with browser-based editor frameworks such as Monaco or CodeMirror.
• Experience building design systems or shared component libraries.
• Experience with Tailwind CSS, UnoCSS or similar styling tools.
• Familiarity with Cloudflare Workers/Pages, frontend deployment workflows or monorepo tooling.
• Experience packaging web applications for desktop using Electron or similar tools.
• Contributions to open-source projects.

Responsibilities

• Build and improve responsive, accessible interfaces using React and TypeScript.
• Work with the team to translate product priorities and user feedback into clear workflows and polished interactions.
• Evolve the existing frontend architecture, reusable components and shared UI patterns.
• Improve interfaces for AI-assisted development, including streamed responses, progress updates, reviewing generated output and recovering from errors.
• Integrate backend and third-party APIs, handling application state, asynchronous updates, loading states and failures.
• Deliver new features while maintaining the reliability and consistency of existing functionality.
• Identify and resolve usability issues, frontend bugs and performance bottlenecks.
• Strengthen frontend test coverage, code quality and release confidence.
• Contribute to code reviews and technical decisions, balancing immediate product needs with long-term maintainability.
• Use AI coding tools to support development while independently reviewing and validating their output.

Benefits

• Be part of the founding team of a new AI developer platform backed by an established, profitable parent company.
• Shape the architecture, product, and culture of a company from day zero.
• Collaborate with a team that has worked at OpenAI and shipped award-winning products.
• Access the resources, backing, and reach of the HyperionDev ecosystem while building something new.
• Work on the cutting edge of AI and developer tooling, with the freedom to experiment and innovate.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed