Team Lead Fullstack Software Developer (m/f/d) AI Solutions at check24 | Hamburg

Freicon Software GmbH, a member of Valsoft Corporation, develops Dealer Management Systems (DMS) for clients in the automotive, commercial vehicle, and caravan industries. Its core product, FILAKS.PLUS, supports dealerships with tasks such as customer service, inventory logistics, and vehicle sales management. Valsoft Corporation, established in Canada in 2015, has expanded to over 118 software companies worldwide. The group focuses on acquiring and growing specialized software businesses, emphasizing lasting value and strong partnerships with existing management teams. Valsoft encourages a culture of collaboration, performance, and mutual support. The company invests in employee development and aims to foster an environment where team members feel engaged and motivated. Achievements are recognized together, and the team pursues ongoing improvement while staying grounded. Role overview The AI Software Developer will join the product and development team at Freicon Software GmbH. The focus is on building new features, AI tools, integrations, and internal systems for FILAKS.PLUS. This position involves working closely with product, sales, and clients to deliver solutions that align with business goals. A strong understanding of FILAKS.PLUS, its AI layer, and the API bridge is important for success in this role. When a feature or tool is missing, the developer will help bring it to life. Main responsibilities Design and develop AI-powered features, agents, and integrations

Anyone AI is seeking Backend Developers to join project-based consulting work with a prominent AI research lab. This remote, part-time role centers on designing and evaluating realistic software engineering tasks for AI training, with a focus on backend systems. Role overview As a Backend Developer – AI Trainer, the position involves crafting and reviewing coding scenarios that mirror real-world engineering challenges. Typical tasks include bug resolution, feature implementation, refactoring, and test creation. The work will also require reviewing peer submissions to ensure they meet quality standards. What you will do Create and implement multi-file coding tasks, including bug fixes, new features, refactoring, and test generation. Draft clear, natural language specifications and provide reference implementations. Develop and expand unit and integration test suites. Review peer-generated tasks for accuracy, clarity, and feasibility. Identify edge cases, ambiguities, and potential failure points. Ensure specifications, code, and outputs remain consistent and aligned. Requirements Professional fluency in written English and strong communication skills. 3 to 7 years of hands-on experience in software engineering. Advanced knowledge of Python and JavaScript or TypeScript, plus working familiarity with Java, C#, or Go. Experience in backend or full-stack development in production environments. Proficiency with testing frameworks such as pytest, Jest, JUnit, xUnit, or Go testing tools. Ability to debug and work within large, multi-file codebases. Comfort with code reviews, refactoring, and production migrations. Engagement details Part-time, project-based consulting Remote work Location: Germany Expected outcomes Deliver high-quality, production-ready outputs for AI training and evaluation.

Anyone AI is seeking experienced software engineers in Germany for a part-time, project-based role supporting a leading AI research lab. This position centers on expert evaluation and allows for fully remote work within Germany. Key responsibilities Design and complete multi-file coding tasks, such as bug fixes, new features, refactoring, and testing Write detailed specifications in natural language and supply reference implementations Develop and enhance unit and integration test suites Review tasks created by peers for accuracy, clarity, and realism Identify edge cases, ambiguities, and potential failure points Verify alignment between specifications, code, and expected outcomes Requirements Exceptional written English 3–7 years of professional software engineering experience Strong skills in Python and JavaScript or TypeScript; familiarity with Java, C#, or Go is a plus Experience in backend or full-stack development for production systems Comfort with testing frameworks like pytest, Jest, JUnit, xUnit, or Go testing tools Advanced debugging abilities in large, multi-file codebases Background in code reviews, refactoring, and handling production migrations What success looks like Consistently delivers production-ready code and thorough documentation Work arrangement Part-time, project-based contract Remote within Germany

Anyone AI is actively seeking talented software engineers to join our team as project consultants. This role offers the opportunity to engage in innovative AI-driven projects while working remotely from anywhere in Germany.Role Overview: As a consultant, you will be responsible for designing and assessing realistic software engineering tasks, which include bug fixing, feature implementation, refactoring, and test generation. Your expertise will be pivotal in creating complex coding scenarios and reviewing submissions for quality and accuracy.

Role Overview anyone-ai is seeking a Backend Developer focused on AI training. This position centers on building and maintaining backend systems that power advanced AI technologies. The work supports the development and refinement of machine learning models. What You Will Do Develop backend systems that enable AI research and model training Work closely with the AI research team to improve machine learning models Help enhance and maintain training datasets for quality and reliability Location This role is based in Germany.

Join Anyone AI as a talented Full-Stack Developer and collaborate on groundbreaking projects with a premier AI laboratory.Qualifications:Fluent in professional written English3 to 7 years of hands-on experience in software engineeringExpertise in Python and JavaScript/TypeScript, with familiarity in Java, C#, or GoExperience in backend or full-stack development within production environmentsFamiliarity with testing frameworks such as pytest, Jest, JUnit, xUnit, and Go testingProven track record of debugging and navigating extensive codebasesExperience in code reviews, refactoring, and production migrationsEngagement: This is a part-time, project-based consultancy role.Work Type: RemoteAs a contributor, you will design and evaluate authentic software engineering tasks, focusing on bug fixing, feature development, refactoring, and test generation. Your role involves crafting intricate coding scenarios and assessing peer submissions for quality and precision.Responsibilities:Create and implement multi-file coding tasks for bug fixes, feature enhancements, refactoring, and testingProduce clear, natural-language specifications and reference implementationsExpand and maintain unit and integration test suitesReview tasks generated by peers for correctness, clarity, and realismIdentify edge cases, ambiguities, and potential failure scenariosEnsure that specifications, code, and expected outputs are alignedExpected Outcomes:Deliver high-quality, production-ready coding tasks

Join Bosch Group as an intern in our innovative team focused on developing cutting-edge AI-based solutions for embedded middleware software. This internship provides a unique opportunity to contribute to impactful projects that leverage artificial intelligence to enhance software functionality.

About the Role CHECK24 is looking for a Junior Software Developer (m/f/d) to join the AI Forge team in München. This position sits within the App & Web Full Stack group, where developers and DevOps work closely together. The team focuses on projects that use artificial intelligence to create practical solutions. What You Will Do Contribute to software development across multiple stages, including design and implementation Work alongside developers and DevOps specialists to deliver reliable, high-quality applications Support projects that apply AI to real-world challenges Location This role is based in München.

Who is SonarSource?At SonarSource, we are dedicated to enhancing code quality and security before it reaches production. Our solutions empower developers by leveraging AI to boost productivity and streamline workflows, ensuring that all code—whether written by internal teams, AI, or third parties—results in applications that are secure, reliable, and maintainable. With roots in the open-source community, our tools support over 30 programming languages, frameworks, and infrastructure technologies, and are trusted by over 7 million developers and 400,000 organizations globally, including notable names like the DoD, Microsoft, NASA, MasterCard, Siemens, and T-Mobile.We are passionate about creating exceptional products, backed by a strong internal team and vibrant culture. Our commitment to our company, users, and each other drives us to maintain high standards and hold one another accountable for our actions, fostering positivity, dedication, thoughtfulness, empathy, and passion.At SonarSource, we make informed decisions with clarity of purpose while maintaining a sense of urgency, ensuring we are effective and efficient. We work collectively as One Team to achieve our objectives.CODE is not just an acronym for us; it’s a mindset that permeates our daily operations.Why Join Us?Join our team of talented, driven professionals who are committed to empowering developers to create better and faster solutions. Our mission is to consistently enhance code quality and security while reducing unnecessary developer toil. This allows developers to focus on what they love while we tackle the root causes of issues across all code, whether human-written, AI-generated, or sourced from third parties.We cultivate a dynamic culture with team members across the globe and have hub offices located in the USA, Switzerland, the UK, Singapore, and Germany. We welcome you to be part of our vibrant and innovative team.

About RealistRealist is a pioneering WealthTech startup located in Germany, dedicated to revolutionizing the financial sector with state-of-the-art technology, insightful data analytics, and robust financial infrastructure. As we enhance our platform and technological capabilities, we are in search of a seasoned Senior Software Engineer to join our expanding team in Berlin and contribute to the creation of next-generation financial systems.About the RoleIn the capacity of Senior Software Engineer, you will be instrumental in designing and developing high-performance financial systems that efficiently handle vast quantities of data in a secure manner. You will collaborate closely with product, engineering, and data teams to architect scalable systems and aid in the development of intelligent, AI-driven financial applications.This position demands substantial experience in backend engineering, distributed systems, and data-intensive architectures, combined with a mindset conducive to a dynamic startup environment. We are particularly interested in candidates who are quick learners, capable of swiftly adapting to new technologies and evolving challenges.Key ResponsibilitiesDesign, develop, and maintain scalable backend systems that support data-intensive financial applications.Build and optimize high-performance OLTP systems for transaction-heavy workloads.Contribute to system architecture and design, ensuring reliability, scalability, and maintainability.

jobgether is hiring a Senior Software Engineer to help build AI SaaS solutions. This position is based in Germany and focuses on developing software that uses artificial intelligence to solve real business problems. Role overview This role centers on designing and implementing features for AI-driven SaaS products. As part of the engineering team, you will contribute to projects that influence how software is built and used in the future. What you will do Develop and maintain software for AI SaaS applications Collaborate with team members to deliver impactful solutions Work on projects that aim to advance the field of software engineering Who we are looking for Experience in software engineering, ideally with AI or SaaS products Interest in new technology and a drive to create practical solutions Comfort working in a collaborative team environment

About the Role CHECK24 is looking for a Working Student (m/f/d) in IT with a focus on Software Development and Artificial Intelligence. This position is based in Hamburg and offers practical experience alongside ongoing studies. What You Will Do Support software development projects that use AI technologies Work closely with experienced developers and team members Contribute to ongoing projects and learn from real-world challenges Why Join Gain hands-on experience in software development and AI Work on projects that shape digital products and services Collaborate with a skilled team in a supportive setting

Role overview Mindrift is looking for a freelance API Integration Developer to support the Tendem project (https://tendem.ai/). This part-time contract is fully remote and centers on building and improving integrations for a hybrid AI and human workflow. What you will do Develop and refine API integrations to connect various platforms and services Work closely with Tendem Agents, who manage repetitive tasks, to ensure reliable data flow Use structured analysis and quality assurance practices to keep integrations reliable and scalable Create and maintain data pipelines using APIs and webhooks Requirements Freelance experience working with API integrations and webhooks Ability to build and manage data pipelines across multiple systems Interest in part-time, remote work, open to candidates based in Stuttgart, Baden-Württemberg, or elsewhere

Your Career Opportunity (Immediate Start)Haven't found a position that fits your skills? We encourage you to submit a speculative application. While we can't guarantee a placement, there may be opportunities available that suit your talents. Even if we don’t have a current opening, we will keep your application on file and reach out when a relevant position arises.Your MissionTogether, we’ll define your responsibilities and explore how best to integrate your skills into our team.

Join our innovative team as an Agentic AI Software Engineer. We are seeking a talented and driven individual who possesses a strong foundation in software engineering, complemented by practical experience with cutting-edge AI technologies. Your role will involve partnering with clients to design and implement sophisticated, production-ready systems that utilize LLMs, autonomous agents, and scalable cloud infrastructure.Key Responsibilities:Architect, develop, and deploy scalable, production-grade applications on leading cloud platforms such as AWS, GCP, or Azure.Create and manage agentic AI frameworks, incorporating multi-step workflows, tool integrations, and autonomous decision-making capabilities.Oversee the complete lifecycle of AI feature implementation, from proof of concept to full-scale deployment.Develop high-performance APIs and backend services for AI applications using technologies like FastAPI, Flask, or Spring Boot.Integrate generative AI solutions, including LLMs, vector databases, and RAG pipelines, into enterprise environments.Design and implement robust orchestration and retrieval mechanisms for scalable AI applications.Establish and maintain MLOps/LLMOps pipelines and CI/CD workflows for seamless integration, evaluation, and deployment.Ensure software quality through rigorous testing, monitoring, observability, and performance tuning.Collaborate effectively with clients and cross-functional teams to gather requirements and deliver impactful AI solutions.

Mindrift is hiring a Freelance n8n Workflow Developer - AI Automation Specialist to support the Tendem project (https://tendem.ai/). This part-time, remote role centers on building and refining automation workflows for a hybrid AI and human system. Known internally as the AI Pilot, this position collaborates with Tendem Agents, who handle repetitive tasks, to ensure reliable and efficient workflow execution through structured automation. Key responsibilities Design, build, and improve automation pipelines using self-hosted n8n environments. Integrate business systems and AI features to create scalable workflows. Develop and enhance AI-driven workflows, including those for content generation and data processing. Set up and manage automation for lead generation and outreach activities. Create web scraping workflows for consistent data extraction. Optimize node sequencing and error handling to minimize workflow failures and delays. Role requirements Experience with no-code automation platforms, workflow design, and process optimization. Familiarity with integrating various business systems. Comfort working part-time and remotely. The position is based in Stuttgart, Baden-Württemberg, Germany, but remote candidates are welcome. About Mindrift Mindrift connects specialists with AI projects from leading technology innovators. The company aims to advance Generative AI by bringing together real-world expertise from a global network of professionals.

Role Overview machinelearningreply is looking for an Agentic AI Software Engineer to join the team in Munich, Bayern. This role centers on building intelligent, production-ready systems using large language models (LLMs), autonomous agents, and scalable cloud infrastructure. The position involves close collaboration with clients to deliver practical AI solutions, with a focus on agentic and generative AI applications. Main Responsibilities Design, develop, and deploy scalable systems on cloud platforms such as AWS, GCP, or Azure. Build and manage agentic AI systems, emphasizing multi-step workflows, tool integration, and autonomous decision-making. Lead the implementation of AI-driven features from proof of concept through to production deployment. Create high-performance APIs and backend services for AI applications using frameworks like FastAPI, Flask, or Spring Boot. Integrate generative AI technologies, including LLMs, vector databases, RAG pipelines, and orchestration frameworks (such as LangChain or LangGraph), into enterprise environments. Design and maintain orchestration and retrieval pipelines to support scalable AI applications. Set up and manage MLOps and LLMOps pipelines, along with CI/CD workflows for integration, evaluation, and deployment. Ensure software quality through thorough testing, monitoring, observability, and performance tuning. Work closely with clients and cross-functional teams to gather requirements and deliver effective AI solutions. What machinelearningreply Offers Opportunities to contribute to innovative AI and software engineering projects across sectors such as Banking, Insurance, Automotive, and Retail. Growth in areas like MLOps, cloud architecture, data engineering, and generative AI. Collaboration with leading technology partners in cloud computing, AI, and automation. Access to training, certifications, and interdisciplinary project work.

Intrinsic Robotics, a pioneering initiative of Alphabet, is transforming the landscape of industrial robotics. Our team is driven by the conviction that advancements in artificial intelligence, perception, and simulation will redefine the capabilities of industrial robotics in the near future, with software and data at the heart of this evolution. Our mission is to make industrial robotics intelligent, accessible, and user-friendly for millions of businesses, entrepreneurs, and developers. We are a vibrant team of engineers, roboticists, designers, and technologists committed to unlocking the creative and economic potential of industrial robotics.RoleAs a Software Engineer focused on Developer Experience, you will play a crucial role in enhancing our engineering productivity. Our fast-paced organization is rapidly expanding its on-premises hardware and software, controlling real hardware in real time. We extensively utilize cloud platforms for our robots' computing requirements. You will face the exciting challenge of shaping and testing our internal engineering environment using state-of-the-art tools every day. How Your Contributions Drive Our MissionLead the development of Intrinsic's inner-loop infrastructure for code development, building, and testing. This is a unique opportunity to design and implement a top-tier developer infrastructure from scratch, integrating industry best practices with the latest advancements in AI-enhanced development.Promote and establish best practices for software building, packaging, and deployment for the next generation of robotic systems.Required Skills for SuccessA degree in computer science or a related field.3+ years of experience in software engineering or software development.Experience in a collaborative software project with 10+ contributors using a distributed version control system.Significantly contributed to projects in categories such as build systems, CI/CD systems, code review, code search, or IDE integration/extensions.Proficiency in one or more programming languages: Golang, Python, Rust, and/or C++.Preferred Skills That Will Enhance Your ApplicationFamiliarity with build systems (e.g., Blaze, Bazel, CMake, Ant, Maven, Gradle, Pants, etc.).Experience with distributed build farms (e.g., Buildbarn, Buildfarm, GCC CompileFarm, etc.).Knowledge of CI/CD systems (e.g., Jenkins, Travis, Circle CI, Spinnaker, Terraform).Experience integrating IDEs (e.g., Visual Studio or similar).

Join our dynamic team as a Backend Developer with AI Focus and play a pivotal role in shaping cutting-edge solutions that harness the power of artificial intelligence. You will be responsible for designing, developing, and maintaining backend systems that support AI-driven applications, ensuring scalability, efficiency, and performance.