245 freelance English-speaking jobs in Poland

Terraform Jenkins GitLab Operating system macOS About the project We're currently seeking a passionate freelance

Mid-March - Mid-June 2026 Locations: Germany/Various EU countries (travel required) Contract type: B2B/freelance

This is a freelance position, starting no earlier than May 2026, available on-site in Warsaw or remotely

Overview Join to apply for the DevOps in Digital& team (freelance) role at PwC Polska.

Freelance Kotlin Developer will design, build, and maintain JVM-based microservices on AWS. Responsibilities include working with a rich data layer, building event-driven integrations, and collaborating on API design. Must-haves include 5 years of backend development experience in Java and/or Kotlin, solid understanding of distributed systems, and production experience with AWS.

Freelance Kotlin Developer will design, build, and maintain JVM-based microservices on AWS. Responsibilities include working with a rich data layer, building event-driven integrations, and collaborating on API design. Must-haves include 5 years of backend development experience in Java and/or Kotlin, solid understanding of distributed systems, and production experience with AWS.

technologies-optional : Postman Proxyman Charles about-project : We’re currently seeking a passionate freelance

Senior Backend Engineer needed for remote contract role (EU only). Design, build, and maintain scalable backend systems, APIs, and ETL pipelines. Strong Java, database, and cloud platform experience required.

Senior Backend Engineer needed for remote contract role (EU only). Design, build, and maintain scalable backend systems, APIs, and ETL pipelines. Strong Java, database, and cloud platform experience required.

Senior Backend Engineer needed for remote contract role (EU only). Design, build, and maintain scalable backend systems, APIs, and ETL pipelines. Strong Java, database, and cloud platform experience required.

Senior Golang Developer needed for fully remote, contract position. Develop and maintain backend services using Go (Golang) in a modern product environment. Collaborate with product managers and designers to build features and ensure code quality.

Senior Backend Engineer needed for remote contract role (EU only). Design, build, and maintain scalable backend systems, APIs, and ETL pipelines. Strong Java, database, and cloud platform experience required.

Senior Backend Engineer needed for remote contract role (EU only). Design, build, and maintain scalable backend systems, APIs, and ETL pipelines. Strong Java, database, and cloud platform experience required.

Senior Golang Developer needed for fully remote, contract position. Develop and maintain backend services using Go (Golang) in a modern product environment. Collaborate with product managers and designers to build features and ensure code quality.

Senior Backend Engineer needed for remote contract role (EU only). Design, build, and maintain scalable backend systems, APIs, and ETL pipelines. Strong Java, database, and cloud platform experience required.

Senior Golang Developer needed for fully remote, contract position. Develop and maintain backend services using Go (Golang) in a modern product environment. Collaborate with product managers and designers to build features and ensure code quality.

Senior Backend Engineer needed for remote contract role (EU only). Design, build, and maintain scalable backend systems, APIs, and ETL pipelines. Strong Java, database, and cloud platform experience required.

Senior Golang Developer needed for fully remote, contract position. Develop and maintain backend services using Go (Golang) in a modern product environment. Collaborate with product managers and designers to build features and ensure code quality.

Senior Backend Engineer needed for remote contract role (EU only). Design, build, and maintain scalable backend systems, APIs, and ETL pipelines. Strong Java, database, and cloud platform experience required.

Senior Golang Developer needed for fully remote, contract position. Develop and maintain backend services using Go (Golang) in a modern product environment. Collaborate with product managers and designers to build features and ensure code quality.