freelance English-speaking jobs in Bielefeld

Test game features across multiple platforms, identify and log bugs, and verify bug fixes. Collaborate with developers to improve game design. Experience in game development and strong communication skills are required.

Develop power and precision measurement electronics for test systems from concept to final product. Requires a degree in Electrical Engineering and several years of experience in Analog & Power hardware design.

Lead new client acquisition and retention in the International Private Bank. Advise on investments, banking, and financial planning to deliver complete wealth management solutions. Requires Private Banking experience with high net worth individuals.

Designs, builds, and deploys production-ready AI solutions, integrating AI into business systems and optimizing performance. Experience with LLMs, generative AI, and AI agent development is required. Strong Python, data engineering, and cloud infrastructure knowledge is essential. Proven ability to ship AI systems to production and collaborate with stakeholders to define success metrics and drive business outcomes.

Accountant (m/f/d) manages daily operational accounting, supports HGB closings, and develops digital finance structures. Responsibilities include invoice management, reconciliations, and handling international tax topics. Requires commercial/accounting training and 2+ years of experience.

Join Resourcify's growing software engineering team if you have a passion for software engineering, a strong work ethic, and experience in a fast-paced startup environment.

Act as a CHRO for departments, focusing on engagement, performance, and organizational development. Lead talent strategy and drive company-wide changes using a data-driven approach. Requires 5+ years in strategic HR or consulting.

This role involves dynamic pricing and strategic development for European rental business. Responsibilities include analyzing market trends, generating strategic actions from customer insights, and optimizing pricing strategies. Requires a university degree in economics/management or commercial apprenticeship.

Render Engineer will implement and improve graphic features, refactor code, and fix bugs. Requires 2+ years of C++ development experience, knowledge of graphics APIs (DirectX, Vulkan, OpenGL), and shader writing (GSL, HLSL).

Engineering Work Student to advance SF6-free medium-voltage switchgear. Responsibilities include building assemblies, creating detailed work instructions, and collaborating on design improvements. Requires Mechanical or Industrial Engineering degree and hands-on assembly experience.

Head of Global Supply Chain Planning & Execution leads end-to-end planning across outsourced manufacturing. Responsibilities include S&OP, IBP, demand/supply alignment, and managing global CMO partnerships.

Act as a "deal captain" in Investment Banking for the Global Technology Group. Manage complex M&A mandates, oversee financial modeling, and interface with clients. Requires 5-7 years of tech/high-growth M&A experience and German fluency.

Chief Product Officer to lead product teams, driving innovation strategy and bringing new products to market. Oversee R&D, Science & Regulatory, and Product Development functions. Requires 15+ years in product, with 5+ years leading in supplements or CPG.

Build and maintain production-ready backend and full-stack features using TypeScript. Integrate AI-powered functionality into the think-cell product. Work closely with C++ and AI engineers to translate ideas into robust product features.

Collaborate with data sourcing and architecture teams to build and maintain data pipelines for Statista's content management and production. Develop data orchestration workflows to support automated publishing processes. Analyze processes to identify optimization and automation opportunities.

Chief Engineer for the copper industry. Organize new product and technology development, conduct industry research, and develop technical requirements. Requires a degree in Materials Science or Mechanical Engineering and 10+ years in copper processing R&D.

Senior Brand Manager for Prime Video International Marketing. Manage end-to-end marketing campaigns for Local Originals, leading asset delivery across various channels. Requires proven international campaign development and strong cross-functional collaboration.

The IT System Administrator provides technical support to employees, troubleshooting hardware/software issues and managing IT assets. Responsibilities include installing and configuring new equipment, monitoring existing systems, and ensuring compliance with security policies. The role also involves supporting software deployment, user accounts, and onboarding/offboarding processes.

Lead end-to-end delivery of the AIR·MS platform and D2E projects. Manage multi-stakeholder workstreams, driving cross-functional delivery across engineering and research teams. Requires 5+ years in software development with data platforms experience.

Lead and develop the digital engineering organization for R&D, driving delivery of digital products and platforms. Shape a flexible, AI-enabled, and metric-driven engineering setup. Requires proven leadership in software engineering and organizational change.