freelance English-speaking jobs in Bielefeld

Senior Accountant supporting the accounting close process for Polish entities. Ensures accounting accuracy, timely reporting, and compliance with US GAAP, Polish GAAP, and regulations. Reconciles accounts, completes accruals, and manages intercompany balances. Trains and guides Polish business transactions to ensure compliance. Manages external audits and collaborates with stakeholders. Requires fluency in Polish and English, experience with Polish GAAP and statutory reporting, and strong communication and analytical skills.

Product Line Engineer for Precision Optics develops and expands standard product families, gathers market information, and collaborates with teams to define product strategies and go-to-market plans.

Lead the architecture and development of a secure, scalable enterprise file collaboration platform. Design, build, and implement core features including collaboration environments, access control, and document handling systems. Mentor junior developers and collaborate with stakeholders to translate business requirements into technical solutions.

Technical Purchaser needed for a 18-month fixed-term contract. Manage requests for quotation, resolve discrepancies, track delivery progress, and drive cost reduction projects. Bachelor's degree or professional training in a related field and 3 years of procurement experience required. Excellent English communication skills and proficiency in MS Office 365 are essential.

Experienced Associate or Vice President to develop relationships with DACH and European private equity funds. Support origination efforts, identify transaction opportunities, and act as a strategic advisor to sponsor clients on M&A, financing, and capital structure.

Provides first-level HR support to employees and managers across EMEA entities, with a focus on Slovakia, Netherlands, Switzerland, and Germany. Administers and optimizes HRIS, maintains data accuracy, and generates reports. Supports onboarding, offboarding, payroll processing, and documentation. Collaborates with HR colleagues and cross-functional teams.

Legal Counsel will provide legal consultancy to the Mobis business regarding Global OE business in Germany and other RLCE countries. Responsibilities include supporting internal decision making, assisting negotiations with customers and suppliers, and educating staff on legal topics.

Develops the Purchasing & Procurement Domain according to the Area Consulting CoE Sustainable Enterprise and Corporate IT Strategy. Translates business needs into scalable, secure, and value-driven IT solutions. Acts as advisor, guiding business units through ideation, process optimization, and technology scouting. Ensures adherence to the Enterprise Architecture Management (EAM) framework and principles. Cross-divisional coordination of the Purchasing & Procurement domain. Leads requirements analysis, conducts architectural evaluations, and orchestrates a seamless handover to the central IT PMO.

Manages Paid Social and Display campaigns, analyzes performance data, and collaborates with cross-functional teams. Requires 2-3 years of experience, proficiency in reporting and optimization tools, and knowledge of Merchant Centers and campaign automation platforms. Must be able to work independently, manage projects, and vendor relationships. Fluency in English and a passion for luxury fashion are required.

This role provides configuration and troubleshooting of Cloud/Virtualised Infrastructure, software, and Operating Systems for clients. Responsibilities include resolving technical issues, ensuring service quality, and acting as a technical escalation point. The role requires fluency in German and English, experience with AWS cloud technologies, Atlassian products, and various operating systems.

Strategic Business Developer will partner with enterprise customers to implement Adobe solutions, driving growth and innovation in the IT sector. Responsibilities include defining customer workshop agendas, delivering impactful demos, and expanding Adobe's footprint. Requires proven experience in visual communication projects, driving discovery calls, and expertise in customer success, business development, and product evangelism.

Experienced General Manager to lead and scale Curly Angels, a premium vegan haircare brand, across Germany and South Africa. Responsibilities include P&L ownership, growth strategy development, brand positioning, team leadership, and performance analysis. Requires a Bachelor's degree and proven experience in brand building and managing commercial performance. German language skills are highly appreciated.

Research Assistant (Doctoral Position) to investigate the effects of climate change on soil microbial communities, focusing on pathogens. Tasks include soil incubation, microbial analysis, and scientific publication.

Designs product lines based on market trends and creative briefs, ensuring alignment with brand aesthetic and financial guidelines. Collaborates with cross-functional teams to develop and deliver product assortments.

Senior Data Scientist will design, build, test, and deploy recommendation and personalization models. Responsibilities include developing scalable ML services, collaborating with engineers and architects, and analyzing A/B tests. Requires experience with machine learning methods, Python, and production-quality code.

Product Owner for a full-time contract role in a Cloud-Native environment. Focus on delivering high-value increments for developer platforms and CI/CD toolchains. Requires senior-level expertise in cloud-native toolchains, technical background in developer platforms and CI/CD pipelines, and proficiency in Agile methodologies.

Drive innovation in electro-optical measurement methods and contribute to the advancement of beam diagnostics. Represent your work at international conferences. PhD in physics or engineering science required. Practical and theoretical background in laser physics including fiber optics is essential.

Drive sales and manage customer relationships in the construction, mobility, and industry sectors. Develop and execute sales strategies, analyze sales data, and collaborate with the sales team to achieve targets. Promote Berner as a premium brand and provide expert consultation to customers.

Provide technical support to dealers and end users via phone and email. Troubleshoot issues, guide customers on products, and manage support tickets. Must be fluent in German and English and have 2+ years of customer service or technical support experience.

As a Working Student, you will support the Talent Management Unit in career development, staffing, and strategic HR topics. You will assist with preparing Career Development meetings, process staffing data, and contribute to strategic HR projects.