Focal Systems

Full Stack Software Engineer (Python / React)

Vaga remota de Backend Engineering com fit claro de localização do candidato.

Publicada11 de jul. de 2026

Países elegíveis1 país aceito

Sinal de senioridadeSenior

Modelo de trabalhoRemoto

Locais aceitos para candidatos

Polônia

Resumo da vaga

Conteúdo da vaga extraído em seções para revisão mais rápida.

Build and maintain scalable backend services using Python (Flask/FastAPI) that process data from 300,000+ IoT devices
Design and develop REST APIs consumed by internal tools and customer-facing applications
Build and improve React/TypeScript frontend features — from translating designs into code to refining existing UI components
Write database queries to analyze how features are actually being used and to debug production issues
Build deployment monitoring and diagnostic tools that give visibility into system health across geographies
Create tools that provide transparency and ease of access into the company's rich datasets stored across varying geographic locations and data formats
Collaborate with engineering teams to ensure data persists in usable formats for frontend, middleware, diagnostics, and Deep Learning pipelines
Remotely debug customer issues across the full stack and find smart solutions that actually work
Partner with the product team to shape user experience — you'll bridge the gap between backend capabilities and what users actually see
Support our customer success team by helping solve client problems
Evaluate incoming requests — assess the effort required vs. potential value delivered
Expand test coverage for critical backend services and frontend user flows
Refactor existing code to reduce complexity and keep things maintainable
Be part of the team that ships weekly releases to customers
Present your work to the company and share what you've shipped

6+ years of professional software development experience
3+ years of hands-on experience with Python (FastAPI, Flask or similar) or other Backend Language
3+ years of experience with React and TypeScript
Solid experience with REST API design and development
Experience working with data-intensive applications and/or microservices architecture
Experience with relational databases (MySQL or similar)
Experience with CI/CD pipelines
Applied experience with unit and integration testing
Ability to work independently and take ownership of features end-to-end
Fluent in Polish with advanced English skills (written & spoken)
Flexibility in adjusting working hours to meet the needs of the global and time zone-diverse team (urgent tasks or meetings may occur outside of regular CEST working hours)
Strong work ethic and commitment to completing assigned tasks and projects within established deadlines