Senior Full Stack Engineer - Hybrid (Warsaw) + ESOPs

Fresha; Warszawa; Hybrid; PLN 279,000 - 446,000; Full time

Benefits offered by this job

ESOPs

Job summary

Fresha is seeking a Senior Full Stack Engineer in Warsaw to join a cross-functional team. You will own features end-to-end, building React/TypeScript frontends and the GraphQL backend, with services behind it. Expect weekly cadence with feature flags and strong emphasis on performance and quality.

Office four days a week with Wednesdays remote, working from our Warsaw hub on Rondo 1. Experience across Ruby/Elixir is a plus; ESOPs accompany a competitive B2B package.

Qualifications

• 5+ years building and running product software in production.
• Strong in either frontend or backend and able to hold their own in the other.
• Experience with React and TypeScript, CSS, and modern JS tooling.
• Backend exposure with Ruby or Elixir is a plus; familiarity with GraphQL APIs is valued.
• Knowledge of distributed systems, Kafka, gRPC or similar.

Responsibilities

• Own features end to end from design to live deployment.
• Build the UI in our frontend against a custom design system.
• Design and document GraphQL and gRPC APIs for internal use.
• Ship changes behind feature flags and monitor dashboards.
• Work across services and across teams (Product, Design, Frontend, Infra, Mobile).
• Keep codebase healthy, fix bottlenecks, and maintain performance and quality.
• Contribute to architectural decisions and engineering practices.

Skills

React

TypeScript

Frontend

Backend

Tools

Ruby

Elixir

GraphQL

gRPC

PostgreSQL

Kubernetes

Kafka

Job description

Fresha is seeking a Senior Full Stack Engineer in Warsaw to join a cross-functional team. You will own features end-to-end, building React/TypeScript frontends and the GraphQL backend, with services behind it. Expect weekly cadence with feature flags and strong emphasis on performance and quality.

Office four days a week with Wednesdays remote, working from our Warsaw hub on Rondo 1. Experience across Ruby/Elixir is a plus; ESOPs accompany a competitive B2B package.