1836 backend developer English-speaking jobs in Warsaw

C# Developer to join GBTO, the IT entity for Société Générale's Investment Bank. Develop and improve pre-trade chain software, including Tessa (structured products pricing tool), IWC (custom financial indices), and Dynamix (profit margin calculation).

Django and/or Flask Solid knowledge of HTML5, CSS3, and JavaScript Experience building REST APIs and backend

.NET Developer needed for a growing project. The role requires 2+ years of .NET experience, C#, SQL, REST API, and unit testing knowledge. The team uses Docker, Kubernetes, Playwright/Selenium, and Git flow.

Develop, deploy, and optimize scorecards and alerting frameworks within the Quantexa platform for risk assessment and decision-making.

Familiarity with Agile/Scrum methodologies in team environments Nice to have : Mendix Intermediate Developer

iOS Developers (Junior, Mid, Senior, Lead) sought for a remote, B2B contract position. Develop for a popular iOS application, impacting millions of users. Proficiency in Swift/Objective-C, iOS frameworks, and design patterns required. Strong communication and problem-solving skills essential. Must be available for a 4-hour overlap between 15:00 and 19:00 Poland time.

improvements proactively Produce installation-ready artifacts and documentation to enable deployment without developer

experience with micro frontend architecture; however, if you have none but you are a very strong frontend developer

Requirements: Salesforce Developer with approx. 2–4 years of commercial experience.

RTL Developer needed for advanced digital systems. Lead functional specification development, design microarchitectures, and perform RTL debugging. Experience with Verilog/VHDL, synthesis tools, and SoC design is required.

Build and execute challenging web applications using React, Angular, TypeScript, and other relevant technologies. Collaborate with stakeholders, designers, and development teams to deliver high-quality products.

Node.js Developer needed for a growing IT company. Expert knowledge of database design, message brokers, and application architecture required. Experience with Docker, monitoring tools, and distributed systems is essential. Strong communication skills and a desire to mentor are also needed.

Drupal Developer at Capgemini Warsaw, Mazowieckie, Poland Your Tasks Developing and maintaining web

SharePoint Developer needed with 2+ years experience building web applications/services. Must have strong SPFx knowledge, experience with relational and NoSQL databases, and understanding of GDPR and cybersecurity principles. English (B1+) required.

Frontend Developer will design, build, and maintain engaging digital experiences using Vue.js, Angular, or React. Collaborate with international teams to deliver seamless UIs and write maintainable code.

used by Xiaomi, TripAdvisor, Discord, and Pinterest: github.com/YalantisNow, we’re looking for an iOS Developer

The role As a Frontend Developer, you will be responsible for designing and delivering scalable, reliable

Develop Python-based solutions for large-scale data processing and TV viewership analytics on GCP. Build and maintain scalable Machine Learning environments using tools like Kubeflow and Github Actions. Create web applications with Flask or FastAPI to automate data analyses.

Senior Golang Developer sought for a 2-3 month project in the travel industry. Requires 4+ years of experience, strong Golang knowledge, and experience with ORMs, SQL, and unit testing. Must have excellent communication and organizational skills.

As a .NET Developer you will: Work in an international environment Actively participate in the design