3503 frontend developer English-speaking jobs in Poland

Design and implement backend features using Go in a microservices architecture. Build and maintain integrations with LLM vendors and cloud AI services. Own backend service quality through testing and CI/CD. Improve data access reliability and performance. Collaborate cross-functionally on architecture, scalability, and security. Lead technical design discussions and deliver solutions independently.

100% on site, office in Warsaw Contract Type: 140-170 pln/h B2BWe are looking for a Mid+ Front-End Developer ... continuous improvement of development practicesExpectationsAt least 4-5 years of experience in a Front-End Developer

Senior .NET Developer to design, develop, and modernize applications using .NET, C#, and ASP.NET Core. Experience with Agentic AI, Claude Code, and GitHub Copilot required. Must have 6+ years of commercial experience building scalable, enterprise-grade applications and APIs.

Senior Java Developer with Strong Application Security Focus (m/f/d) The role is a security‑minded senior ... developer focused on application security and vulnerability remediation within the development context

Senior Backend Developer will design, develop, and maintain Java and Python backend services for a cloud-native platform migrating legacy systems to Microsoft Azure. Responsibilities include building RESTful APIs, containerized applications, and infrastructure as code using Terraform. Strong Java, Spring Boot, and Azure experience is required.

We are looking for a high-caliber, autonomous Tableau Developer to join our Data & Analytics team as

Senior Java Developer for a long-term, enterprise-scale project in investment banking. Design, develop, and maintain backend services using Java 11+, Spring Boot, and REST/SOAP APIs. Contribute to distributed microservices architectures and implement business process workflows. Collaborate in an agile environment with architects, QA, DevOps, and business stakeholders.

We are currently looking for an exceptional Tech Lead / Senior Developer to join their Core Trading Infrastructure

Automation Senior Developer – Fixed‑term Contract (3‑month probation, then fixed until Dec 2027) Location ... We’re seeking an experienced Automation Senior Developer to design, develop and maintain automation solutions

Location: Hamburg/Hybrid or Poznan/Hybrid Responsibilities As Senior Backend Developer you own the services

We are looking for a talented Senior Game Developer with a good understanding of the casual mobile game ... optimization and performance Excellent written and verbal communication skills in English A creative, hands‑on developer

Develop and maintain cloud-based Python applications using frameworks such as FastAPI and Django. Integrate distributed systems and contribute to building GenAI solutions.

Senior Java Developer will design, implement, and enhance integration solutions and data flows for a financial crime prevention project. Responsibilities include building microservices, APIs, and supporting ETL processes. Strong Java 21 development skills, Spring Boot experience, and knowledge of DevOps practices are required.

About the Role We are looking for a PHP Developer to maintain and extend an existing codebase supporting

About the Role We are looking for a PHP Developer to maintain and extend an existing codebase supporting

We are looking for an experienced Senior Tableau Developer to join a Data & Analytics team on a contract

Join us as Senior .NET Developer Grow in an environment that cares about your development as much as

-Minimum 2 years in a Full-stack SharePoint support or developer role (custom solutions, SDK, workflows

Project Description We are looking for an experienced Python Developer to join a forward‑thinking team

Senior Golang Engineer to build a cloud-native Platform-as-a-Service (PaaS) offering. Responsibilities include designing, developing, and optimizing containerized microservices, Kubernetes orchestration, and infrastructure automation.