java freelancer Jobs in Berlin

Senior Fullstack Developer (SAP Commerce Cloud / Spartacus) (DRWN) Job title – Senior Fullstack Developer (SAP Commerce Cloud / Hybris & Spartacus) Client Location – Europe (Remote) Remote work offering – 100% Client Industry – Appliances Contract Length – 12 months Contract type – Freelance / Contractor Project focus Build and maintain an SAP...

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 Berlin 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 shape how the next generation of AI understands and generates software? We're looking for Software Engineers in Berlin to build, evaluate, and improve AI-generated code — helping train AI systems to think like real developers. You'll write solutions, review AI outputs, and provide the expert-level...

Senior Software Engineer — Agentic Coding (AI Training) About The Role What if your software engineering expertise could define how the next generation of AI writes, debugs, and ships code on its own? We're looking for Senior Software Engineers in Berlin to work at the frontier of agentic AI — building, evaluating, and improving autonomous coding...

About The Role What if your years of software engineering experience could directly shape how AI writes code for millions of developers? We're looking for Software Engineers in Berlin to evaluate, rank, and refine AI-generated code — helping the next generation of coding assistants produce solutions that are correct, efficient, idiomatic, and...

Company DescriptionBlackbird Collective is an HR organization that helps startups and established companies find employees that match their current needs. We work on freelance and interim recruitment projects for clients based in Germany, most of which are located in Berlin.Job DescriptionAt the moment, we are collaborating with a few innovative startups...

Key job characteristics: Location: BerlinType: Full time, hybrid/on-siteLanguages: German (min.B2) and English Dear Applicants, for our client - public sector company - we are looking for a skilled Mobile Developers (specialized in both iOS or/and Android). On this position, you will play a crucial role in enhancing the digital services provided by our...