Senior Fullstack Developer

New
100% remote work (but we have offices in Krakow and Warsaw and we’re happy to meet there from time to time)Full-TimeSenior
Salary20,000 - 25,000 PLN per month
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Job Details

Languages
En B2
Experience
5+ years
Required Skills
Node.jsPHPGitTypeScriptREST APISymfonySaaS

Requirements

  • 5+ years building production web applications in any modern language (PHP, TypeScript/Node.js, Python or similar).
  • Solid REST API design instincts: resources, idempotency, versioning, error contracts.
  • Relational database fluency: schema design, query analysis, migrations.
  • Disciplined testing (unit and integration).
  • Git fluency: branching, pull requests, rebases, conflict resolution.
  • Experience using AI coding assistants and agent-based workflows.
  • Strong written English for code comments, PR descriptions, and OpenAPI text.
  • PHP 8.x with Symfony and Doctrine ORM (nice to have).
  • Node.js / TypeScript with a mature backend framework (nice to have).
  • Knowledge of multi-tenant SaaS architecture (nice to have).

Responsibilities

  • Develop and enhance a secure, multi-tenant SaaS platform.
  • Manage sensitive HR and identity-related data with focus on access control and auditability.
  • Deliver end-to-end features for backend and web applications.
  • Develop REST APIs and implement complex business logic.
  • Perform database design, query analysis, and migrations.
  • Develop frontend functionality and automated tests.
  • Maintain API documentation.
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20,000 - 25,000 PLN per month
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