5501 frontend developer English-speaking jobs in Poland

tools (e.g., GitHub Copilot, Cursor, OpenAI API tooling) to accelerate software delivery and improve developer

infrastructure as well as connect to our persistence layer (Kafka, MongoDB, PostgreSQL) Build and document developer‑friendly

programming Relational databases (RDBMS), scripting and new/advanced programming languages Experience Frontend

bring Extensive experience in software development, with a background in web technologies (backend or frontend

This 3-month summer internship offers a chance to gain experience in the IT and Telecom world. Trainees will develop knowledge of physical layer (L1) and implement telco specifications using DSP. Applicants must be active students in a relevant field with good English skills and a willingness to work full-time.

This 3-month summer internship offers a chance to gain experience in the IT and Telecom world. Trainees will develop knowledge of physical layer (L1) and implement telco specifications using DSP. Applicants must be active students in a relevant field with good English skills and a willingness to work full-time.

Develops KPIs, builds data flows, and supports business users. Requires 3+ years experience with BI tools (Qlik Sense, Talend, Snowflake) and strong communication skills.

Develop, maintain, and optimize R/Python code for actuarial processes. Collaborate with actuarial experts to create efficient systems and embed change initiatives.

Develop KPIs, build data flows, and support business users. Requires 3+ years experience with BI tools (Qlik Sense, Talend, Snowflake) and strong communication skills.

We are looking for a talented Backend Developer to join our new digital development team.

Develop new features and maintain console applications and utilities. Research and implement technologies like AI, big data, 3D, and media formats. Write maintainable, high-performance code using best practices and collaborate with the team.

HTD Health seeks Mid or Senior .NET Developers with 3+ years (Mid) or 5+ years (Senior) of experience. Responsibilities include delivering maintainable software, collaborating with clients, and working in an international environment. Strong communication skills, experience with agile methodologies, and a passion for healthcare technology are required.

Develop and maintain reliable software for an interactive mobile and web application in the entertainment industry.

Design, develop, and maintain backend services, APIs, and system components. Collaborate with cross-functional teams in a Scrum environment. Monitor, troubleshoot, and resolve backend performance or stability issues.

About the Role Now we are looking for a Middle C# Developer to join the team that works on Veeam Backup

Senior .NET Engineer to develop and maintain native Windows desktop applications using WPF and .NET. Design and implement secure offline-first solutions with a focus on data privacy and encryption best practices. Collaborate with cross-functional teams and communicate with the client to align on requirements and present updates.

Develop software interfaces for navigation sensors, improve navigation algorithms, and create interfaces to customer systems.

Senior Ruby on Rails Developer needed to build and scale high-performance backends and APIs. Expert-level Ruby on Rails skills, database proficiency (SQL, NoSQL), and cloud/infrastructure experience (AWS/GCP/Heroku, Terraform) required. Strong DevOps skills (Docker, GitHub Actions, CI/CD) and commitment to TDD (RSpec) are essential. Fluent English communication skills are necessary for team collaboration.

Senior Ruby on Rails Developer needed to build and scale high-performance backends and APIs. Expert-level Ruby on Rails skills, database proficiency (SQL, NoSQL), and cloud/infrastructure experience (AWS/GCP/Heroku, Terraform) required. Strong DevOps skills (Docker, GitHub Actions, CI/CD) and commitment to TDD (RSpec) are essential. Fluent English communication skills are necessary for team collaboration.

Senior Ruby on Rails Developer needed to build and scale high-performance backends and APIs. Expert-level Ruby on Rails skills, database proficiency (SQL, NoSQL), and cloud/infrastructure experience (AWS/GCP/Heroku, Terraform) required. Strong DevOps skills (Docker, GitHub Actions, CI/CD) and commitment to TDD (RSpec) are essential. Fluent English communication skills are necessary for team collaboration.