iDelsoft

Full-Stack Product Engineer — React & Node.js (Europe)

United States full-time Senior Salary not listed
full-time Senior level Technology & IT Curated
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About the role

We're hiring Full-Stack Product Engineer who will own customer-facing features end to end on a data-intensive platform: 100k+ rows, instant search, real-time updates, complex filtering — from the first product decision to what ships in front of users. You decide what to build, direct AI agents to build it, and verify the result. We don't hand out fully-specced tickets.
What you'll do

Own features from a rough idea to production — decide what to build, cut scope, ship something usable fast, then iterate from real usage

Make the product calls yourself, with design and GTM, instead of waiting for a spec

Direct AI agents as a core part of how you build: parallel exploration, precise briefs, delegated implementation, verified output

Build and own data-heavy features at scale in React, Node.js and PostgreSQL — filtering, faceting, saved views, real-time updates — including the query, index and rendering work that keeps them fast

Implement the interaction layer that makes heavy data feel light: optimistic updates, conflict resolution, retry queues

Build the harness that lets you trust agent output without reading every line — tests, evals, automated review, context systems

You may be a fit if

You lead with the user and the problem, not the stack — and you decide rather than list options

You've shipped something nobody specced for you, and can name a trade-off you made to ship faster

You have a real, daily AI-orchestration workflow (Claude Code, Cursor, Copilot) and can describe how you direct agents — where you delegate, where you keep control, how you verify

You're comfortable across React/TypeScript and Node.js/PostgreSQL without being narrowly specialised in one

You understand database performance well enough to know what will strain at 10× — indexes, query shape, pagination — without needing to hand-write every query

You reason about the business unprompted: who pays, what converts, what it costs

Nice to have

You've built tooling around agents — evals, automated review, context or skills systems. This is rare, and we weight it heavily.

Elasticsearch or other search-engine experience

Real-time collaboration stack (WebSockets, Liveblocks)

Startups, or products built from scratch

Open-source contributions or public side projects

Feature flags, product analytics (PostHog/Amplitude), error monitoring

Shipped AI features before

Why this role is important
We're not hiring for the ability to write code — AI writes it now, fast and well.
We care more about what you've owned than about years on a CV. If you're fast, product-minded and orchestrate well, apply even if your experience is shorter than a typical senior listing.
What's scarce is judgment: knowing what to build, deciding quickly, directing agents at the right altitude, and verifying their work. So this seat is weighted toward product ownership and AI orchestration, with real engineering depth where it still counts — at scale, and in what you guarantee.
What we offer

Remote within Europe

A small, autonomous team — no micromanagement, no ticket queue

Real ownership of a customer-facing surface, and the speed that comes with it

Competitive comp + benefits

Our interview process

Recruiter pre-screen — a short call about how you work, what you've built, and how you actually use AI. (45 min)

An intro with call with Team Lead about the product and the challenges.(30 min)

A live, AI-driven technical round — a real production codebase, an intentionally under-specified feature, work an AI coding agent, and full autonomy over how you approach it. No spec, no acceptance criteria, on purpose. We're watching how you meet ambiguity, where your control sits, and whether you ship something real. (90 min)

Originally posted on Himalayas

Interview prep

Walk in with sharper answers.

Use this as a quick practice sheet before you speak with the employer.

Senior
Technology & IT Data Analysis Javascript MySQL Remote Collaboration Senior level full-time

Likely questions

  1. Tell us about work you have done that is close to the Full-Stack Product Engineer — React & Node.js (Europe) role.
  2. How would you approach your first 30 days at iDelsoft?
  3. Which of Data Analysis, Javascript and MySQL have you used recently, and what did it help you achieve?
  4. How have you led people, improved a process, or made a hard decision in a previous role?
  5. How do you handle busy days, changing priorities, or pressure at work?

Prepare before the call

  • A recent example that proves your experience with Data Analysis, Javascript and MySQL.
  • One short story with a problem, your action, and the result.
  • Two examples that show the strengths listed on your CV.
  • A clear reason why this role and company interest you.
  • Your availability, preferred work style, and salary expectations.

Ask them

  • What would success look like in the first 90 days?
  • What are the main problems this hire should help solve?
  • How does the team give feedback and measure good work?
  • What does a normal working week look like for this role?
Practice line

I am interested in the Full-Stack Product Engineer — React & Node.js (Europe) role because I can bring practical experience in Data Analysis, Javascript and MySQL, learn the team quickly, and contribute to the outcomes iDelsoft needs from this hire.

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