Platform Engineer (AI-Native) - Avante AI.
Location: Remote, within Costa Rica.
Type: Full-time.
Hiring through: Deel (Employer of Record).
About Us:
- Avante AI builds software that automates the hard, slow work of investment diligence, turning piles of documents and data into clear, structured analysis that helps investors make better decisions, faster.
- We are small, fast-moving, and AI-native: we build with AI coding agents every day, and we are looking for our next engineer to grow with us from the ground floor.
- This is a rare seat. You would be one of the first engineers, working directly with the founder, with real ownership over how the product runs and gets built.
What Makes This Role Different:
- We do not hire people to type code all day.
- We build with AI coding agents, and your job is to direct the agent and apply judgment, not write every line by hand.
- Knowing when the AI is wrong and steering it matters more here than raw typing speed.
- If you are excited about working at the frontier of how software actually gets built in 2026, this is for you.
What You Will Do:
- You will start by keeping our platform healthy and reliable, then grow into building new features.
- Keep the platform running smoothly: monitor the system, catch problems early, and fix them before users notice.
- Fix bugs end-to-end: find the root cause, ship the fix with tests, confirm it works in production, and follow up.
- Verify everything we ship actually works: for real users, in the real product, not just "it passed the tests."
- Grow into building features: within a few months you will own new features start to finish: design, build, test, and document.
- Become a second person who can keep the whole system alive, so the company is not dependent on any one person.
First 90 Days:
- Month 1: Learn the codebase, run our daily health checks, and ship your first handful of bug fixes with tests.
- Month 2: Own the reliability of the platform: monitoring, testing, and fixing, and start shipping small features on your own.
- Month 3: Own a feature from idea to launch, and be someone who can confidently keep the platform running on your own.
What We Are Looking For (Must-Have):
- Strong Python: you have built and shipped real things with it.
- Comfortable with SQL / PostgreSQL databases.
- Solid JavaScript / HTML / CSS (we keep the frontend simple: no heavy frameworks).
- Confident with Git and a normal ship-to-production workflow.
- Professional English: our docs, tools, and team communication are in English.
- You learn fast and work independently: you do not need someone watching over your shoulder.
- Comfortable working with AI coding tools, or a clear track record of picking up new tools fast.
- Detail-oriented: you treat "the tests pass" and "it actually works for users" as two different things.
Nice to Have:
- Experience with FastAPI, Supabase, or Railway.
- Experience writing automated browser tests (e.g., Playwright).
- Experience building with large language models / prompt design.
- Interest in finance or investing (it helps you understand what we are building).
Why Join:
- Ground-floor seat at an AI company, working directly with the founder.
- Real ownership: your work keeps the whole product running and shapes how it is built.
- Frontier work: we build the way the best teams will build in a few years, today.
- Fully remote within Costa Rica, same time zone as the team, employed properly and on the books through Deel.
- Clear growth path from reliability into feature ownership, and into more as we grow.
How We Hire:
- A quick look at your background.
- A short, paid take-home that mirrors the real job: we give you a small codebase and a real bug to fix, and you ship the fix with a test (a few hours, and yes, you can use AI tools: we want to see how you work).
- A 60-minute live working session with the founder on a small problem.
- A reference and culture conversation.
- If this sounds like you, apply: we move fast.
