freelance English-speaking jobs in Bielefeld

Human Factors Engineer to join a team specializing in rotorcraft cockpit design and certification. Analyze operational concepts, integrate human factors principles, and collaborate with multidisciplinary teams.

Senior Product Marketing Manager drives strategy, go-to-market execution, and downstream marketing for mixed-signal sensing technologies. The role requires technical understanding of semiconductor sensors and sensor interfaces, strategic capabilities, and marketing execution skills. Collaborates with global product marketing, product line teams, R&D, sales, and central marketing/communication functions.

Leads and develops X FAB's photonics activities, focusing on the XPH90 platform, heterogeneous integration, and optical device development. Manages multidisciplinary teams in Erfurt and Corbeil, driving technology roadmap, development processes, and partnerships with Ligentec and RTOs. Evaluates customer requests, defines technical solutions, and participates in customer meetings.

Leads end-to-end Tech, Product, Data, and AI due diligence engagements and AI transformation programs. Advises investors and C-level stakeholders on how technology translates into investment logic and enterprise value. Develops AI roadmaps, assesses AI use cases, and partners with developers to build and scale AI solutions. Identifies Tech & AI value levers and creates compelling equity stories. Leads interdisciplinary project teams, manages timelines and budgets, and mentors junior colleagues. Shapes DevelopX's Tech & AI Due Diligence offering and contributes to market positioning and service innovation.

Experienced analyst to create, analyze, and optimize complex financial models for strategic decision-making. Develop and refine model assumptions, perform sensitivity analysis, and contribute to continuous improvement of modeling methodologies. Collaborate with team members and communicate findings to clients and internal teams.

Customer Service Representative required to manage orders, handle customer inquiries, and optimize business processes. Must possess strong communication, numeracy, and IT skills, with a minimum of two years of B2B customer service experience. Fluency in English and German is essential.

Develop robust, real-time controllers and online estimation of vehicle states. Design and implement model- and data-driven observers for environment estimation. Production-oriented implementation on the ECU with a focus on numerical robustness and runtime performance. Testing and measurement data acquisition on prototypes.

The ORBIS Pilot & Rollout Manager oversees technical installations, acting as the central contact for update partners. This role involves defining update steps, conducting coordination meetings, and providing support during installations. Requires 3+ years of experience in IT system rollout, strong communication and analytical skills, and fluency in German and English.

System Architect (m/f/d) for SmarTest 8 hardware layer ART. Collaborate with stakeholders, customer, application, and scrum teams. Coach and train scrum teams on architecture and software development topics.

Quantitative Risk Analyst will support the development and improvement of tools to quantify credit risk, analyze results, and propose measures. The role involves collecting and processing data, performing analysis, delivering reports, and recommending mitigation measures.

This senior finance position oversees day-to-day finance operations across Germany and other European countries. The role involves managing monthly reporting, analyzing cost structures, and driving corrective actions to improve profitability. The Financial Director collaborates with local management and global teams to ensure robust financial control and operational insight.

Leads regulatory strategy and compliance for Sirio's European food supplement business, ensuring products meet EU and UK requirements. Provides expert guidance to internal teams and customers, anticipates regulatory changes, and represents Sirio in regulatory bodies.

This role drives services opportunities and strengthens the professional services portfolio across EMEA. You will partner with Sales, Customer Success, and the partner ecosystem to develop, position, and sell services that deliver measurable customer outcomes.

Experienced Area Sales Manager to lead sales growth of SCHOTT Pharma's portfolio in eastern Europe. Develop customer-specific solutions, drive growth, build partnerships, and act as a key interface between customers and internal stakeholders.

IT Specialist (m/f/d) provides 1st level IT support, coordinates with external providers, and handles on-site troubleshooting and maintenance of network infrastructure. Requires completed IT specialist training or relevant experience, knowledge of IT security, support, network technology, and the Microsoft environment.

As a principal Full Stack Engineer, you will design and implement full-stack applications, AI agents, and platform components for rapid GenAI agent development. You will build developer tooling, CI/CD, and observability for safe, fast iteration. You will collaborate with product, UX, and domain experts to deliver customer-focused solutions.

Lead the development and integration of cybersecurity engineering processes for automotive product development, ensuring alignment with industry standards and internal quality frameworks. Collaborate cross-functionally to embed cybersecurity into the product lifecycle, including ASPICE and ISO 26262 activities. Develop and deliver training materials, act as a mentor, and drive continuous improvement initiatives.

End-to-end risk management for alternative assets, with a focus on credit portfolios, private debt, and structured credit. Design, launch, and enhance new fund and investment products. Manage risk throughout the investment lifecycle, ensuring regulatory compliance. Produce risk reporting for internal and external governance bodies. Collaborate with Portfolio Management and other teams.

HR Business Partner and Labour relations specialist will drive HR and labour relations initiatives, aligning HR strategy with country needs. Partner with country management, develop and implement HR agendas, and act as an escalation point for complex employee relations. Collaborate with social partners, negotiate Collective Bargaining Agreements, and advise business leaders on labour relations matters.

Creates high-end visual content, transforming design concepts into photorealistic images, movies, and VR experiences. Manages 3D projects and coordinates with stakeholders. Requires a degree in interior design, graphic design, or a related field and professional experience in interior design, customer service, and project management.