Senior Fullstack Engineer

Flyps • Polish: C1 • English: C1 • Paid as a contractor rate • Python • Go • JavaScript • TypeScript • Node JS • 26 days ago
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Salary
$70k – $89k per year (net)
Location
Remote (Poland)
Seniority
Senior · 5+ years exp
Employment
Full-Time
Overview
Company
Impact
Profile match

Flyps

flyps.io

The role

We're looking for a Senior Fullstack Engineer to join our team and work on challenging, modern web applications using TypeScript, React/Next.js, and Node.js. You'll have a high level of ownership, influence technical decisions, and work directly with clients to turn complex requirements into production-ready solutions.

What you'll do

  • Build and own complex fullstack features using TypeScript, React/Next.js, and Node.js.

  • Design and implement scalable frontend and backend solutions, including APIs, business logic, data models, and integrations.

  • Build and integrate AI-powered features and LLM-based functionality into modern web applications.

  • Work on complex web applications with rich interfaces, business workflows, and role-based functionality.

  • Take ownership of technical solutions from requirements and architecture through implementation and delivery.

  • Work directly with clients and internal stakeholders to understand problems, propose technical solutions, and communicate trade-offs.

  • Contribute to architecture, code reviews, testing, and continuous improvement of the codebase.

What we're looking for

  • 5+ years of commercial experience as a Fullstack Engineer.

  • Strong hands-on experience with TypeScript, React, and Node.js.

  • Solid experience with Next.js and modern backend development (e.g. Express, NestJS).

  • Good understanding of APIs, databases, application architecture, and complex business logic.

  • Commercial experience building or integrating AI-powered features / LLM-based solutions.

  • Ability to independently own complex technical problems and deliver production-ready solutions.

  • Strong communication skills and confidence working directly with clients.

  • Comfortable using AI-powered coding assistants (e.g. GitHub Copilot, Cursor, ChatGPT, Claude) as part of the daily development workflow.

  • Comfortable working in a bilingual environment (Polish C1, English C1).

Nice to have

  • Experience with Python/FastAPI.

  • Experience with GraphQL, Go, PostgreSQL, or MongoDB.

  • Experience with SaaS/B2B products and automated testing/CI/CD.

What we offer

  • 22 000 - 28 000 PLN net + VAT monthly, B2B

  • 100% remote setup and flexible hours

  • Private medical care, life insurance, and Multisport

  • Referral bonuses

  • Equipment of your choice (MacBook by default)

  • Interesting, challenging projects - we only take on the ones we believe in :-)

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