back-end developer

About The Role What if the code you write could directly power the AI systems shaping how millions of people interact with technology? We're looking for Back End Developers to design, build, and optimize the server-side systems and APIs that drive cutting-edge AI products — from data pipelines and model-serving infrastructure to scalable microservices...

About The Role What if the code you write could directly power the AI systems shaping how millions of people interact with technology? We're looking for Back End Developers in Warsaw to design, build, and optimize the server-side systems and APIs that drive cutting-edge AI products — from data pipelines and model-serving infrastructure to scalable...

About The Role What if the code you write could directly power the AI systems shaping how millions of people interact with technology? We're looking for Back End Developers in Lublin and across Poland to design, build, and optimize the server-side systems and APIs that drive cutting-edge AI products — from data pipelines and model-serving infrastructure...

About The Role What if the code you write could directly power the AI systems shaping how millions of people interact with technology? We're looking for Back End Developers in Kraków to design, build, and optimize the server-side systems and APIs that drive cutting-edge AI products — from data pipelines and model-serving infrastructure to scalable...

About The Role What if the code you write could directly power the AI systems shaping how millions of people interact with technology? We're looking for Back End Developers in Poznań to design, build, and optimize the server-side systems and APIs that drive cutting-edge AI products — from data pipelines and model-serving infrastructure to scalable...

About The Role What if the code you write could directly power the AI systems shaping how millions of people interact with technology? We're looking for Back End Developers in Wrocław to design, build, and optimize the server-side systems and APIs that drive cutting-edge AI products — from data pipelines and model-serving infrastructure to scalable...

About The Role What if the code you write could directly power the AI systems shaping how millions of people interact with technology? We're looking for Back End Developers in Katowice and the broader Upper Silesia region to design, build, and optimize the server-side systems and APIs that drive cutting-edge AI products — from data pipelines and...

About The RoleWhat if the code you write could directly power the AI systems shaping how millions of people interact with technology? We're looking for Back End Developers across Poland - including Rzeszów and the surrounding region - to design, build, and optimize the server-side systems and APIs that drive cutting-edge AI products. Poland has a thriving...

About The Role What if the code you write could directly power the AI systems shaping how millions of people interact with technology? We're looking for Back End Developers to design, build, and optimize the server-side systems and APIs that drive cutting-edge AI products — from data pipelines and model-serving infrastructure to scalable microservices that...

About The Role What if the code you write could directly power the AI systems shaping how millions of people interact with technology? We're looking for Back End Developers in Lublin and across Poland to design, build, and optimize the server-side systems and APIs that drive cutting-edge AI products — from data pipelines and model-serving infrastructure to...

About The RoleWhat if the code you write could directly power the AI systems shaping how millions of people interact with technology? We're looking for Back End Developers in Wrocław to design, build, and optimize the server-side systems and APIs that drive cutting-edge AI products — from data pipelines and model-serving infrastructure to scalable...

About The Role What if the code you write could directly power the AI systems shaping how millions of people interact with technology? We're looking for Back End Developers in Łódź to design, build, and optimize the server-side systems and APIs that drive cutting-edge AI products — from data pipelines and model-serving infrastructure to scalable...

Work mode: Hybrid (6 times a month in the office)About the role:We’re looking for a hands-on Developer Experience / Platform Engineer to help build scalable developer enablement solutions in a large, regulated enterprise environment.Key Responsibilities:Build and maintain golden-path templates and reusable patterns that accelerate onboarding and reduce...

Do you excel at solving complex backend challenges like streaming responses, intelligent batching, low-latency caching, and API optimization under heavy load? Are you looking for a high-impact backend role where system reliability, cost efficiency, and ultra-low latency directly drive the product experience? Great, then please read on as we have a role for...

We are an interactive agency and we build custom software. We are using new technologies and we are constantly developing, and most importantly, we’re probably looking for you! Responsibilities Programming using modern technologies Developing our clients current projects Implementing new products for current and new customers Cooperation with Project...

We are looking for a Senior .NET Framework Backend Developer to join our team. In this role, the ideal candidate will be accountable for all parts of the software development lifecycle for their projects. They will develop, adapt, and implement short- and long-term solutions to information technology need through new and existing applications, systems,...

Middle – Senior Back-End Developer (Python) IRC305254 Function IT, Telecom & Internet Experience 3-5 years Location Poland - Krakow Skills AWS, Microservices, Python, REST APIs, Serverless Architecture We are developing an interface into motor partner personal insurance for one of the largest UK insurance companies listed on the London Stock Exchange. We...

Senior Back-end Developer – DatabaseWe are looking for a Senior Back-end Developer with strong experience in database technologies and data-intensive backend environments.Requirements:Minimum 6 years of professional experience working with backend/database technologiesStrong hands-on experience with:MongoDBPostgreSQLVirtuoso Triple...

Senior Back-end Developer – DatabaseWe are looking for a Senior Back-end Developer with strong experience in database technologies and data-intensive backend environments.Requirements:Minimum 6 years of professional experience working with backend/database technologiesStrong hands-on experience with:MongoDBPostgreSQLVirtuoso Triple...

Senior Back-End (API) Developer (Node.js)Warsaw, Poland · Backend developerWe are Source Angel - a Danish-rooted software company with development centers in Ukraine, Poland, and Romania. For 10+ years,we'vebeen building dedicated tech teams for global clients, focusing on long-term partnerships and a strong people-first...