Frontend Developer; HTML, CSS, TypeScript, React - Early-Stage Startup
Job in
4253 S Carson St, Carson City, NV 89701, United States, Carson City, Douglas County, Nevada, 89701, USA
Listed on 2026-04-08
Listing for:
Lemmi
Full Time, Contract
position Listed on 2026-04-08
Job specializations:
-
Software Development
Front End Developer, HTML CSS, Javascript, React.js, Software Engineer
Job Description & How to Apply Below
Company Description
You know that feeling before a big interview? You've read every "top 10 behavioral questions" list, rehearsed answers in your head, maybe even talked to your mirror. But none of that prepares you for the moment someone asks a follow-up you didn't expect, and your mind just... goes blank.
That's the problem we're solving. Lemmi lets you practice with an AI interviewer that talks back - real-time voice, real follow-ups, real pressure. Afterwards you get scored on communication, content, structure, and an AI coach helps you fix what's actually weak. Not generic tips. Specific feedback on your answers.
People use it to prep for top companies, to switch careers at 35, to stop freezing up in interviews they're technically qualified for. It works and we need someone to make the experience significantly better.
What this role looks like
You'd own the frontend together with our Founding Engineer. The product has real-time voice interactions over Web Sockets, feedback dashboards with multi-dimensional scoring, a coaching interface with chat and practice tasks.
Position Requirements
Bachelor,
1+ Years
work experience Day to day:
Must have:
- Build and ship features in our React web app
- Own the interview flow UI - real-time audio, conversation state, transitions
- Work directly with founders on what to build next
- Set up frontend architecture and patterns for a codebase that's growing fast
Must have:
- Strong HTML, CSS, and TypeScript- not just framework knowledge, actual fundamentals
- Experience with React (or a similar component-based framework)
- Understanding of responsive design and cross-browser quirks
- Comfortable with Git, PRs, and async collaboration
- Ability to take a vague product idea and turn it into a working UI without waiting for a pixel-perfect spec
- Experience with real-time UI - Web Sockets, streaming data, audio/video
- Experience working in early-stage teams where you wore multiple hats
- You've built something from scratch that real people used - side project, freelance, startup, anything
- Claude Code or Codex advanced usage skills in day to day tasks
Additional Information / Benefits
Why now
Lemmi has paying users, a working product, and a small team. One frontend developer's decisions will shape what thousands of people interact with. You'll ship features the same week you build them. You'll have more product influence than most senior roles at bigger companies offer.
We're scaling the team - early people set the standard.
Lemmi has paying users, a working product, and a small team. One frontend developer's decisions will shape what thousands of people interact with. You'll ship features the same week you build them. You'll have more product influence than most senior roles at bigger companies offer.
We're scaling the team - early people set the standard.
Contact Information
Contact Name: Lemmi
Contact Phone: +34647608376
Preferred method of contact: Email with CV via Application Box below.
Please mention in your application that you found this listing on Learn4Good.com.
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