freelance English-speaking jobs in Bielefeld

Mercor seeks STEM professionals (Physics, Chemistry, Math, Biology) to support AI research collaborations. Freelancers will translate research into code, develop Python solutions, and contribute to model benchmarking.

Full-stack engineer to design, build, and deploy systems for a product bridging physical and digital worlds. Expertise in frontend (JavaScript/TypeScript, component-driven UIs), backend (Rust, Python, or C++), and tooling (Bazel, Kubernetes, Datadog). Bonus points for VR/AR, robotics, or WebRTC experience.

As a working student in Social Media & Communications, you will support the planning, creation, and promotion of content across social channels. You will work with colleagues from communications, marketing, and product teams to ensure relevant content reaches the right audience. Responsibilities include creating content assets, messaging technical product breakdowns, and planning and publishing social media content.

Painter (Lackierer) / Industrielackierer / Spritzlackierer Luftfahrt (m/w/d) needed for Wheels and Brake Shop in Norderstedt. Responsibilities include inspection, preparation, and painting of wheels and brakes according to documentation. Requires completed training as an aircraft/vehicle painter or comparable, relevant experience, and understanding of technical drawings.

Growth Lead will build out organic growth playbooks for portfolio companies, enabling €mm annual growth. Requires native-level German, proven marketing/sales expertise, and strong interpersonal skills.

Experienced real estate investment professional sought to define and execute investment strategy, lead transactions, and manage portfolio performance.

Product Design Lead will own all aspects of product design and UX for an AI-driven workflow platform. Responsibilities include user research, interface design, and building a scalable design system. Requires 3+ years of product/UX design experience and a strong portfolio.

Administration & Accounting Specialist to oversee European entity accounting operations, manage financial closing processes, and ensure compliance with regulations.

Freelance Instructor for Industrial Cybersecurity Foundation (Level 1) & Professional (Level 2) training. Deliver sessions on IEC 62443, ISMS, and ISO 27001 standards. Prepare and present complex topics for diverse audiences. Bachelor's or Master's degree in Computer Science or comparable qualification required. At least 3 years of IT experience, including 2 years in information security. Proven experience in Industrial Security and strong knowledge of relevant standards. Fluent in German and English. Pedagogical qualification or equivalent training.

Coordinates Third Party Oversight duties with Business Owners and Second line functions for all Third Party Engagements. Responsible for the Third Party Oversight including maintenance and central storage of TPRM Documents, Contracts and Third Party master data. Guides, advises and supervises Business Owners to identify non-compliant Third Party Engagements.

Lead a new regional office for Assetara, a developer of AI solutions for cryptocurrency analytics and trading. Responsibilities include managing office operations, client consultations, brand promotion, and network development.

As Technical Product Owner / System Engineer, you will translate market needs into technical concepts and own the product lifecycle from concept to certified manufacturing. You will guide technical decisions, lead documentation and release activities, and collaborate with cross-functional teams.

Manages a team of architects and consultants focused on Red Hat technology adoption. Provides direction, coaching, and mentoring to the team. Collaborates with the EMEA Technology Consulting team to define and build strategy, participate in process improvement initiatives, and identify engagement opportunities. Serves as a Services Solution Architect for key customer engagements. Leads multiple standard engagements or work streams on complex engagements. Guides pilot and production deployments of Red Hat solutions.

Leads a team responsible for issuing invoices, managing collections, and settling commissions for Business Partners. Requires an MBA in Accounting & Finance, 10+ years of experience, and proficiency in English and German.

Leads technical proposal development, customer onboarding, and end-to-end project delivery. Manages project P&L, risk, and change requests. Develops and mentors the proposal and project management team.

Student assistant position available for 23 hours per month at the Institute of Production Engineering and Machine Tools. The project focuses on simulation and optimization of grinding processes, including conducting experiments, developing simulation platforms, and researching AI and regression models.

Senior Compliance Analyst to support sales and marketing compliance program, focusing on cross-border distribution, marketing content, and sales practices across EMEA.

HubSpot Specialist will manage HubSpot configuration, user permissions, and system health. This role will build workflows, custom properties, and automated sequences to support business requirements. The Specialist will also provide training and documentation to HubSpot users and collaborate with Sales, Marketing, and Accounting to identify new use cases.

Project Engineer to join a growing global automotive company. Develop and optimize manufacturing processes, collaborate with internal teams, and report to the Engineering Manager. Requires a relevant engineering degree, broad engineering knowledge, automotive industry experience, and fluency in English and German.

Application Engineer will support the Intercompany Application team and CPQ administration. Responsibilities include preparing technical and commercial proposals, providing support on technical and commercial questions, and maintaining the CPQ system.