freelance English-speaking jobs in Bielefeld

Financial controller with 5+ years experience in multinational manufacturing, preferably in Life Science or regulated industry, required. Bachelor's degree in business administration is essential. Experience with US-GAAP and HGB, SAP S/4HANA, and Microsoft Office is needed. Fluency in English is required, German skills are highly valued.

EVCS Project Manager to lead planning and delivery of electric vehicle charging infrastructure projects in Germany. Manage projects from feasibility through commissioning, ensuring compliance with standards and regulations. Requires several years of experience managing EV charging or renewable energy infrastructure projects and fluency in German (C1 level).

Mid-Level Social Media Strategist develops social-first strategies using organic content, creator partnerships, and paid amplification. Leverages AI tools and social listening to uncover cultural moments and audience insights. Translates data into compelling narratives and presents strategic recommendations to clients. Requires 3+ years of experience in social media strategy within a digital agency, fluency in platform ecosystems, and strong communication skills.

Senior Software Engineer to own projects end-to-end, from concept to production. Experience with Ruby on Rails, Go, or Dart/Flutter preferred, but strong fundamentals are key. Must be able to work cross-functionally and have a proven track record of shipping and operating production systems.

The Senior Project Manager leads all CSA and MEP for a data center project, ensuring works meet program, cost, quality, and safety KPIs.

Clinical Research Associate II will conduct site visits, ensure protocol compliance, and collaborate with investigators. Requires a Bachelor's degree, 2+ years of experience, and knowledge of clinical trial processes and ICH-GCP guidelines. Must be able to travel at least 60%.

Support the project management office in developing digital Revenue Management solutions. Provide ad-hoc support, contribute to project success, and assist with training plans.

Solar Project Developer needed for utility-scale PV projects in Germany. Manage greenfield development from site identification through permitting and construction readiness. Coordinate with internal and external stakeholders.

Marketing Operations Manager will own marketing technology strategy, HubSpot management, automation workflows, data quality, and lead lifecycle management. Responsibilities include designing and optimizing B2B GTM processes, ensuring data integrity, and building marketing dashboards and reporting.

Lead Android Developer to architect and develop next-generation Android applications for automotive dashboards. Focus on performance optimization, safety, and mentoring junior developers. Expert-level Kotlin and Jetpack Compose proficiency required.

Develop and implement innovative SAP ABAP and Fiori/UI5 solutions, primarily in the S/4HANA environment. Design, develop, and extend SAP Fiori applications, including custom Fiori apps and Fiori Launchpad configurations.

Support local and international employee and customer events, including Summer Party, Annual Conference, and Winter Party. Assist with brand experience by developing creative assets, researching images, and designing presentations. Collaborate with international stakeholders to implement local events and marketing campaigns.

This People Process and Digitalisation Director role leads the transformation of HR by building and delivering a roadmap for process improvement and automation. You will design end-to-end people processes, lead a team of functional experts, and drive the adoption of technology, automation, and AI across HR. This role requires strong HR technology leadership, experience in automation and AI implementation, and the ability to build data-driven business cases.

Talent Acquisition Specialist will own the full recruiting process for operations, tech, and business roles. Responsibilities include translating business needs into hiring strategies, sourcing candidates, conducting interviews, and managing offers.

Master's thesis on reliable post-quantum VPN tunnels. Research and test fragmentation mitigation for lossy networks, extending an IPsec stack with open-source PQC libraries. Measure performance under simulated lossy conditions.

Assistant Store Manager will analyze KPIs, motivate employees, and ensure optimal product presentation. The role requires strong communication, organizational, and analytical skills, as well as experience in retail management.

Lead data science projects for biopharmaceutical clients, ensuring hybrid models deliver actionable insights for process development and cell culture strategies. Guide a team of data scientists, fostering scientific rigor and customer engagement. Contribute to business development by identifying new opportunities and representing the company at industry events.

Evaluates food safety practices, hygiene standards, and operational compliance in restaurants. Conducts on-site inspections, assesses food handling and sanitation processes, and submits detailed reports.

HR Intern to support employee records, documentation, and benefit programs. Assist with HR policy implementation and employee relations. Requires a degree in HR or business and fluency in English. German or Chinese language skills and HR certifications are beneficial.

Validates and manages e-Request for Stock Provisioning (e-RSP) requests, ensuring material purchasing and delivery according to e-RSP requirements. Monitors inventory, provides feedback to the Request for Stock Provisioning Manager, and supports performance improvement measures.