freelance English-speaking jobs in Bielefeld

The ifa – Institut für Auslandsbeziehungen seeks a Secretary General to lead and develop its art and civil society programs. The successful candidate will manage the Institute's affairs, implement its new strategy, and secure third-party funding.

This 2-year PostDoc position at the Climate Service Center Germany focuses on co-developing and co-testing backcasting tools with local communities in the Amazonian and Landkreis Harburg regions to define climate-resilient futures. The role also involves evaluating and monitoring digital climate service tools.

Senior Market Access Trader / Senior Sales Trader needed for pricing customer inquiries (electricity, gas, coal, CO2) in Europe. Requires several years of energy trading experience, customer management, and portfolio management.

Nachhilfeunterricht seeks motivated Fitness Coaches to provide personalized online and/or in-person coaching sessions. Assess client needs, create training plans, and support motivation and habit building. Strong communication and motivational skills are essential. No prior experience required.

Senior Structural Analysis Engineer will perform stress analysis of rocket structures using hand calculations and FEM. Responsibilities include identifying failure scenarios, collaborating with design engineers, developing test plans, and preparing analysis reports. Requires a degree in Engineering, Aerospace, Mechanical, or (Computational) Mechanics and at least 8 years of experience analyzing aerospace structures. Proficiency in Hypermesh, Optistruct, and CAD software is essential.

The Data Center Engineering Operations Technician is responsible for the delivery of best practice systems and problem resolution on all data center electrical and mechanical infrastructure. This role requires a highly driven individual who demonstrates initiative and proactively seeks solutions to complex technical problems. The technician will be accountable for setting and maintaining the highest standards for safety, driving continuous improvement efforts, and ensuring 100% uptime on all customer-supporting infrastructure.

Can you lead teams, design, deploy and execute solutions simultaneously? Would you like to work with cutting edge frac and completion technologies in the Adriatic region? Partner with the best Baker Hughes stands as a leading global energy‑technology company, delivering innovative solutions that make energy safer, cleaner, and more efficient across the entire value chain.

L.E.K. Consulting seeks Associates to conduct market, competitor, and customer research, perform financial analyses, and collaborate on developing client recommendations. Successful candidates will have strong analytical and communication skills in German and English.

As Stream Lead Plan-to-Fulfill, you will lead the functional and organizational aspects of the Plan-to-Fulfill stream within a global SAP S/4HANA implementation program. You will ensure the successful design and transition of end-to-end processes into the new SAP landscape.

Lead sales efforts for AI-driven manufacturing and industrial software solutions within the enterprise sector. Manage and expand key accounts, driving new business and growth among OEMs, Tier suppliers, and large manufacturers. Execute global sales strategy, build sales pipelines, and cultivate C-level relationships.

Manages and develops a team of engineers specializing in electrical low voltage and security systems. Plans, implements, and supervises projects ensuring quality, efficiency, and compliance. Collaborates with departments and partners to optimize processes and systems.

Content Strategist will lead content projects from conception to publication, creating compelling narratives for internal and external audiences.

ERP Specialist needed for IT department. Troubleshoot and resolve ERP and application issues, ensure system stability, and collaborate with business units. Lead and manage ERP projects, monitor vendors, and support SOX, GDPR, and security compliance. Minimum 5 years IT experience with strong ERP support, degree in related field, and technical expertise in ERP, MRP, BI, and CRM systems.

Lead AI Engineer to provide technical leadership for AI-driven products and platforms. Requires proficiency in LLMs, Agentic AI, deep learning, NLP, and predictive analytics. Experience with LLM orchestration frameworks, model training frameworks, and AI/ML platform technologies is essential. Proven experience leading development teams and experience with cloud platforms (Azure preferred) is required.

Legal Counsel provides legal support for Cafeyn's German market, advising internal teams on legal issues and supporting business, product, and partnership teams. Responsibilities include drafting, reviewing, and negotiating commercial agreements, ensuring contractual consistency, and integrating Readly operations.

Assistant Breeder will plan, coordinate, and execute yield and nursery trials, including data collection and analysis. Requires a Master's degree in a relevant field, strong organizational skills, and fluency in English and German.

Research Associate for projects on carbon dynamics in drylands and climate extremes. Duties include academic services, research, and potential doctoral studies. Requires a university degree in a relevant field and strong programming skills.

Lead and deliver incident response engagements for clients, managing investigations, containment, and remediation. Provide expert guidance and recommendations to enhance security posture.

Drive the continuous improvement of M365 and SharePoint environments, focusing on cloud governance, archiving, storage, and data quality. Design and implement concepts for information protection, permission management, and data classification. Advise internal customers on governance and compliance topics related to SharePoint Online.

Growth Marketing Manager will build and scale growth strategies for property management portfolio companies across Germany. Responsibilities include developing a growth playbook, managing paid, SEO, lifecycle, partnerships, and local activations, and reporting directly to the VP Property Management.