freelance English-speaking jobs in Bielefeld

Senior, hands-on Growth Marketing Manager to own paid channel strategy. Build a full-funnel media plan, execute paid search/social, and connect media activity to revenue. Requires B2B paid media experience and fluency in CRM-linked measurement.

Freelance Senior Functional Analyst needed for Financial Services/Capital Markets, focusing on post-trade areas like Settlement, Clearing, or Reconciliations. The role involves gathering requirements and supporting functional delivery between Business and IT. German and English proficiency is required.

Project Assistant for Calculation/Internal Service at ZÜBLIN, a leading German construction and civil engineering firm. This role supports projects across various construction disciplines.

Senior Backend Engineer needed to build scalable financial products using Node.js and TypeScript. Own features end-to-end, design APIs, and collaborate with product teams. Experience with SaaS and microservices is required.

Power Markets Analyst leads commercial development and negotiation for BESS and solar-plus-storage projects. Focus includes market analysis, revenue forecasting, and closing PPAs/Tolling Agreements. Requires electricity market knowledge and strong analytical skills.

Reservoir & Production Engineer - Data Analytics role focusing on oilfield data analysis, production rate trends, and sensor data. Requires experience in reservoir/production engineering, data analysis, and AI.

Account Executive role focusing on winning new Mid-Market customers for workforce management software. SDR/BDR experience is welcome. Requires fluent German and strong English skills.

Analytical Lead QC – Biological Analytics requires leading analytical activities including optimization, transfer, validation, and troubleshooting. Candidates need 8+ years of experience in pharmaceutical or biotech, strong analytical methodology skills, and fluency in German and English.

Lead the regional Transit Field Services organization, driving field service, warranty, and maintenance execution. Deploy strategy, manage multi-site operations, and improve service delivery while supporting sales and product teams.

Chief of Staff to work with the founder on scaling Gauder. Responsibilities include identifying growth levers, driving project ownership, and delivering strategic insights from sales data. Fluent German and English required.

Contribute to a Bachelor's or Master's thesis applying ML/AI to catalog 2B+ offers. Research agentic AI, Foundation Models, and develop ML solutions in Python using PyTorch and AWS.

Manage high-potential resellers and non-traditional partners to drive regional growth. Develop expansion plans and collaborate across internal teams. Requires 5+ years of B2B channel sales experience and fluency in German and English.

The Global Medical Excellence Lead serves as an Associate Director, driving Medical Excellence in Germany. This role partners with local leadership to develop capabilities, manage field medical effectiveness, and ensure launch readiness within the global framework.

Manage and optimize paid B2B campaigns across Google and LinkedIn Ads for multiple clients. Requires 1-2 years of experience, budget ownership, and proven ability to drive results independently. Fluent German is required.

Oversee contract lifecycle from review to termination, drafting and negotiating agreements with customers and suppliers. Manage risks, ensure compliance with German law, and maintain CLM systems. Requires legal/business degree and 3+ years of experience.

Design and own end-to-end AEP/RT-CDP data architecture, including XDM modeling, identity resolution, and data flows. Requires 5+ years as a Data Architect with strong Adobe Experience Platform experience.

Senior Medical Science Liaison drives strategic scientific engagement in immunology and infectious diseases. This field-based role builds networks with HCP/KMEs, delivers scientific presentations, and gathers medical insights. Advanced degree and fluency in German and English are required.

Agency Development Director, DACH supports and elevates agency business development in the DACH region. This role drives trading partnerships with global and local agencies, requiring 7+ years in digital marketing/ad tech.

Lead operations for a multi-property portfolio of urban aparthotels across Germany, with future expansion to Poland and Austria. Requires 5+ years of multi-property leadership, fluent German and English, and a Booking score of 8.8 or higher.

Drive new business growth in the insurance sector as Sales Director DACH. Own complex sales cycles end-to-end, developing executive relationships for Earnix's intelligent decisioning solutions. Requires 5+ years of insurtech sales experience.