freelance java

Role: Senior Developer or Software Architect Location: Munich Employment type: Freelance (no social security employment required) Workload: 75 person-days, 100% allocation We are looking for an experienced Senior Developer or Software Architect to support the functional and technical redesign of a complex bank account data modification service within a...

We are seeking an experienced German-speaking IT Consultant to support our client in a migration from IBM WebSphere to JBoss. The role will start with an initial 1-2 day meeting in Hamburg to discuss the project scope, followed by fully remote work for the remainder of the 6-month contract. This is an exciting opportunity for a skilled consultant to...

Lecturer Business and IT Programming Information Systems with Java EE (m/f/d) Köln Freelancer, Teilzeit Wenn Du Dich für diese Stelle bewirbst, hast Du die Möglichkeit, Deinen bevorzugten Standort aus den folgenden anzugeben: Köln html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd" IU...

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...

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a SWE Infrastructure Specialist (Java) – Freelance AI Trainer Project based in Germany. This role offers experienced Java engineers the opportunity to apply their infrastructure expertise to the advancement of next-generation AI...

We're not looking for someone who has "used CoPilot." We're looking for a Senior Java Backend & DevOps Engineer who already runs agentic workflows as a core part of how they ship – multiple Claude Code / Codex / Cursor agents in parallel, custom subagents, MCP servers, skills, planning loops, review gates – and who has opinions about which patterns...

Du bist Senior Fullstack Developer und willst mehr als Tickets abarbeiten? Du möchtest technisch hands-on bleiben, ein kleines Entwicklungsteam fachlich weiterbringen und moderne Softwareentwicklung aktiv mitgestalten? Für ein agiles Entwicklungsteam im Raum Wiesbaden suchen wir eine:n Senior Fullstack Developer:in mit Schwerpunkt **Java, Spring Boot und...

371-AB: Senior Java Backend Developer (Spring Boot, API, Cloud Native, DevOps) (m/f/d) 40 Stunden pro Woche • befristet • Frühester Beginn ab sofort 371-AB: Senior Java Backend Developer (Spring Boot, API, Cloud Native, DevOps) (m/f/d) Projektstart: August 2026Projektende: Dezember 2027, Option auf VerlängerungWir suchen einen Senior DevOps...

Your Responsibilities An external freelance lecturer for “Frontend Programming” (m, f, d)(Digital Business and Data Science, B.Sc.) in Hamburg, GermanyThe teaching load comprises 3 SWS (teaching units with each unit being 45 min.).The opportunity:To become an adjunct lecturer at a university of applied sciences in Hamburg, Germany and to share your...

Your Responsibilities An external freelance lecturer for “Frontend Programming” (m, f, d)(Digital Business and Data Science, B.Sc.) in Hamburg, GermanyThe teaching load comprises 3 SWS (teaching units with each unit being 45 min.).The opportunity:To become an adjunct lecturer at a university of applied sciences in Hamburg, Germany and to share your...

Software Testing Analyst (AI Training) About The Role What if your coding curiosity could directly influence how AI writes software for millions of developers and businesses around the world? We're looking for Software Testing Analysts to put AI-generated code through its paces — running programs, hunting down bugs, and helping ensure the software AI...

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...

Wir sind ein Unternehmen im schönen Preetz im Norden - in der Nähe von Kiel in der Natur gelegen.Ich habe dieses Unternehmen vor einigen Jahren als Freelancer noch aus Karlsruhe aufgebaut. Mittlerweile sind wir für KMU und auch im Konzernbereich tätig und verfügen über ein weitgehendes Aufgabenspektrum von IT-Consulting bis zur...

371-AB: Senior Java Backend Developer (Spring Boot, API, Cloud Native, DevOps) (m/f/d) 40 Stunden pro Woche • befristet • Frühester Beginn ab sofort 371-AB: Senior Java Backend Developer (Spring Boot, API, Cloud Native, DevOps) (m/f/d) Projektstart: August 2026 Projektende: Dezember 2027, Option auf Verlängerung Wir suchen einen Senior...

Liebe Fullstack Entwickler,   für eine der führenden Digital-Agenturen Deutschlands suchen wir ab sofort mehrere Fullstack Entwickler. 100% Remote mit langfristigem Vertrag.   QUICK FACTS:- Freiberuflich/Freelance- Start: ASAP- 100% Remote- Dauer: langfristig, Verlängerung möglich- Kapazität: Vollzeit oder Teilzeit, beides möglich- Sprache: Deutsch...

Modellierung und Entwurf von E/E-Netzwerken für die Motorelektronik aus RRPS Beschreibung - Modellierung und Entwurf von E/E-Netzwerken für die Motorelektronik aus RRPS - PREEvision Customizing für RRPS-spezifische E/E HW/SW/SYS-Entwicklung \(non Autosar\) - Unterstützung der E/E System Engineers bei der Übergabe der As-Built-Dokumentation an...

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 Stuttgart 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...

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 Leipzig 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...

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 Cologne 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...

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 Hamburg 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...