1833 backend developer English-speaking jobs in Warsaw

About the Role As a Full Stack Java Engineer, you will be responsible for building and enhancing both backend ... You will play an active role in the full development lifecycle, from designing APIs and implementing backend ... such as: Asynchronous or event-driven processing Concurrency and multithreaded application design Backend ... experience building full-stack applications using Java and React Strong hands-on experience developing backend ... applications using Java, Spring Boot, and React Designing and implementing RESTful APIs Building scalable backend

Develop backend microservices (Python/Go) for more complex logic. ... Improve workflow performance and migrate heavy flows into backend services. ... We are looking for Automation & Integration Engineer (n8n / Backend) About the position We are building ... Skills and qualifications n8n, Python/Go, REST APIs, Docker 3+ years of backend development or system ... We’re looking for an experienced engineer who will own workflow automation using n8n, build backend services

Senior Backend Ownership | AI-Native Accounting Platform Wroclaw, Poland (on-site, 4–5 days/week) Full-time ... You will take ownership of backend services powering a modern AI-native product, working closely with ... What You’ll Do Architect and evolve core backend services and APIs Design distributed systems supporting ... Daily in-office meals and premium hardware Strong product and engineering culture If you enjoy owning backend ... observability tooling GitHub, Linear, Slack, Notion What We’re Looking For 5–10+ years building production backend

Participate in building new frontends (React) and extending backend functionalities. ... #39;s core CRM platform, which includes multiple frontends (Java Swing, JavaFX, React) and numerous backend ... Future development includes building new React-based frontends, enhancing backend services, and modernizing ... Java Swing or JavaFX JBPM Jenkins (CI/CD) English Level: B2/C1 Responsibilities: Develop and maintain backend

Conduct performance profiling and tuning on backend systems to achieve optimal efficiency. ... What You’ll Do Design and implement highly scalable and performant backend systems, focusing on low ... Develop complex, scalable backend services from the ground up using cutting‑edge technologies such as ... What We’re Looking For A seasoned software engineer with 5+ years of hands‑on experience in backend ... A problem‑solving attitude, eager to tackle performance and efficiency challenges in backend systems.

If you’re a curious problem-solver who carves their own path, join the team behind Threat Protection Pro, the NordLynx protocol, and the fastest VPN on the planet—tools that put privacy, security, and control back in people’s hands. Your impact? Helping millions take back control of their online security, privacy, and data.

Design, develop, and maintain highly scalable microservices using Go. Collaborate with teams to ship new features and fixes. Strong Go background and experience with REST API microservices, relational and NoSQL databases, and message brokers required.

Core Requirements Over 4 years of experience in backend development.

Collaborate with cross-functional teams to integrate microservices across NordSecurity's products. Focus on delivering high-quality, scalable, and secure code. Actively participate in technical and architectural decisions. Demonstrate ownership of development, maintenance, and product quality. Possess in-depth knowledge of PHP (3+ years) and hands-on experience using AI tools for code generation, testing, and debugging.

anti-virus and creating a safer online experience where your work will have a direct impact;Passionate about backend

A minimum of 3+ years of experience as a Backend Engineer. ... About the role As a Backend Engineer in our Validator Team, you'll focus on maintaining and enhancing

Domain-Driven Design principles and know what patterns to use when and why Passionate about secure, compliant backend

About the role Join as a C# Developer and help shape the backend of Veeam Backup for Hypervisors, enhancing

We’re looking for a Senior/Lead Asterisk Developer to help us build and scale a cloud PBX solution based ... ready to act as the technical lead for the Asterisk domain (For Lead level) Can work cross-team with backend

verticals, we are focused on EdTech, Fintech, eCommerce, and Pharma.We are looking for a Full-Stack Developer ... Node.js in production environmentsExperience designing and implementing RESTful APIsUnderstanding of backend

best practices and coding standards.You'll work in a cross-functional, English-speaking team where backend ... Prior experience working in a company focused on product development.What You'll Do:As a Fullstack Developer

Key Responsibilities Design, develop, and maintain backend services using Java (Spring / Spring Boot) ... Description Location: Warsaw, Poland - Relocation is mandatory We are looking for a Mid‑Level Fullstack Developer

from search to booking to ticketing No economic inconsistencies between Supply and Economic Core Backend ... What this role is (and is not) Long‑term domain ownership and hands‑on architecture Not a generic backend ... normalized supply layer over Sabre, build production‑grade flows from search to ticketing, and lead a small backend ... logic, Ticketing time limits (TTL) Experience designing normalized domain models over GDS data Strong backend

or Full‑Stack development (with a strong backend focus) Strong proficiency in Nest.js, TypeScript, ... robust, scalable, and high-performance web applications using React and Nest.js Architect scalable backend ... Nest.js constructs: Guards, Interceptors, Pipes, Filters, Providers, and Custom Decorators Optimize backend ... building, and deployment Write comprehensive tests across the stack: unit and integration tests for backend ... for developers Our expectations of the ideal candidate: 7+ years of professional experience in Backend

Strong expertise in backend technologies including Go or C#. ... Qualifications Proven experience leading backend engineering teams delivering scalable, production-grade ... Manager responsible for architecting, delivering, and operating the next-generation location-intelligence backend ... higher in Computer Science, Engineering, or a related field, with a comprehensive understanding of backend