freelance English-speaking jobs in Bielefeld

Account Manager for a German software company specializing in logistics solutions. Develop and implement sales strategies for national accounts in the Transportation & Logistics industry. Build and manage relationships with clients, identify upsell and cross-sell opportunities, and drive account expansion.

Phagestack, a biotech startup, seeks a BTA, CTA, or Biologielaborant:in to perform microbiology and molecular biology lab work. Responsibilities include bacterial cultivation, phage isolation, and applying molecular biology techniques. Must have hands-on experience in sterile lab environments and a structured work style. Fluent in German or English required.

Junior Sales Manager (m/f/d) needed to manage sales of Petrochemical products in the B2B market. Responsibilities include contract negotiations, customer relationship management, and sales strategy development. Requires a degree in business/economics, chemistry, or a related field, plus one year of sales experience. Excellent communication and teamwork skills are essential.

Leads the analysis and integration of transcriptomic and multi-omics data, including RNA-seq and spatial transcriptomics, to support biomarker discovery and patient stratification. Develops and implements computational pipelines for processing and analysis of high-throughput sequencing data. Collaborates with cross-functional teams to interpret data and inform experimental design.

Provides technical advice and service assistance to customers and Authorized Service Facilities for Textron Aviation products. Maintains customer goodwill by addressing all issues concerning their aircraft. Documents field issues and fleet concerns for product improvement consideration. Researches and responds to customer inquiries regarding technical assistance, warranty, and service programs. Develops relationships with customers and participates in trade shows and technical events.

Develop and execute outbound campaigns to generate new customers and nurture leads for SAP's Growth Business. Apply digital sales methods to qualify customer requirements and align with sales teams to drive sales process to contract closing.

Lead technically complex projects for ASIC development in consumer electronics. Manage international teams, coordinate with external partners, and ensure projects meet scope, time, quality, and budget targets.

Founders Associate Intern to support the development and validation of go-to-market strategies and build an AI-first sales organization. Tasks include identifying sales channels, automating workflows, and supporting client onboarding.

Regional Head of Accounting will manage and oversee accounting operations, ensuring financial record accuracy, regulatory compliance, and robust internal controls. This role involves supervising bookkeeping, coordinating closings, managing reconciliations, and preparing financial statements.

IT Admin Team Lead will support employees with IT requests, maintain office network and systems, and manage IT projects. Responsibilities include resolving IT faults, onboarding/offboarding employees, managing IT budget, and overseeing IT equipment. Requires 5 years of experience as a Senior IT Admin or 2 years as an IT Team Lead, strong knowledge of hardware/software, and experience with process automation tools.

PhD Position in Microbiome Systems Biology at the Friedrich Schiller University Jena. The project focuses on integrating shotgun metagenomics data with genome-scale metabolic modeling using machine learning to enhance engineered probiotic colonization in the human gut.

Trade Marketing & Commercial Support professional will analyze market trends, develop trade marketing plans, and manage budgets. The role requires experience in FMCG, project management, and strong communication skills. Fluency in German and English is essential.

Manage and coordinate complex cross-border transaction tax engagements, providing guidance on mandates including tax due diligence and structuring. Develop and oversee tax-efficient planning aligned with client goals. Cultivate strong client relationships and guide junior team members.

Ensures successful completion of transactions on a B2B battery marketplace. Drives operational execution between buyers, suppliers, and internal teams. Provides ongoing support and guidance to users throughout transactions. Collects user feedback and insights to improve platform development. Collaborates with sales, product, and analytics teams.

Part-time Kitchen Assistant needed to handle ingredient distribution, assist with dishwashing, manage garbage disposal, and maintain kitchen and front-of-house cleanliness. Must have strong communication skills, physical stamina, and a collaborative spirit.

Cloud Engineer needed for operation, monitoring, and development of Azure-based cloud services. Responsibilities include building and optimizing CI/CD pipelines, enhancing cloud architecture, and collaborating with product development and support. Requires knowledge of Azure, CI/CD, container technologies, monitoring tools, and SAP integration scenarios. German (C1+) and English (B2-C1) proficiency required.

This joint appointment at Osnabrück University and the German Institute for Global and Area Studies (GIGA) seeks a candidate to contribute to quantitative research in International Relations and/or Comparative Politics. The successful candidate will teach in English-language master's programs and participate in research activities at GIGA. Applicants must demonstrate expertise in advanced quantitative methods and have a research focus on at least one region of the Global South.

Advises on safety and occupational health measures, prepares safety instructions, and conducts inspections to ensure compliance with OSHA standards. Implements safety programs, investigates accidents, and provides safety training to supervisors and employees. Serves as the facilities' technical expert on safety and environmental issues, including infrastructure and equipment modernization projects. Requires certification as a safety professional in accordance with paragraph 7 of the Arbeitssicherheitsgesetz (AsiG).

Manages foreign exchange (FX) and short-term trading activities, ensuring optimized FX and financing product procurement. Acts as the interface to external financial markets, overseeing deal execution with banking partners and contributing to analytics-driven trading strategies. Consolidates FX trading demands, applies market expertise, leverages trading volumes, and enhances trading governance, analytics, and quant-based decision-making frameworks.

Develop, optimize, and industrialize manufacturing processes for high-performance composite components. Transfer prototypes into stable pre-series and series production. Collaborate with R&D, quality, and production teams.