freelance English-speaking jobs in Bielefeld

The Antenna Chief Engineer is the technical expert for Active Antenna Systems, leading the product lifecycle from concept to management. This role drives system architecture, including array geometry and beamforming, and aligns multidisciplinary engineering functions.

Performance Engineer analyzes car data, timing data, and simulations to assess driver, team, and car performance. Collaborates with customer teams and sporting authorities to understand performance limitations and represent Toyota in Balance of Performance (BoP) discussions. Requires a Bachelor's or Master's degree in a relevant field, experience as a race team performance engineer, and proficiency in motorsport data analysis tools.

Sales Manager Europe responsible for achieving sales targets, managing customer relationships, and developing the sales organization. Requires a Master's or Bachelor's degree, sales experience, international customer relationship management skills, and fluency in English and German.

Process Engineer to operate AIXTRON CCS or Planetary systems in an application laboratory. Optimize and develop reactor hardware, collaborate with Simulation, Design, Sales & Marketing, and conduct customer demonstrations. Manage cross-departmental projects, analyze data, and document process knowledge.

Saarland University seeks a W3 Professor in Applied Mechanics to commence April 1, 2027. The position focuses on continuum-mechanics modeling of complex multi-field problems in material sustainability and circular material systems. Applicants must have a doctorate, demonstrate outstanding scientific expertise in Applied Mechanics, and have experience acquiring and managing external research funding.

At Siemens Smart Infrastructure, our team of developers, data and AI experts and product managers are dedicated to advancing our products and driving sustainability. We create environments that care! Become part of the team and joint mission for making sustainable infrastructure a reality.

Software Tester will perform system and software tests, analyze software functionality and safety, and develop test specifications. Requires a degree in information technology or similar, Python 3, Selenium, Linux, and git.

Industrial Engineers provide expertise to enhance AI research. Responsibilities include creating deliverables, reviewing peer work, and collaborating with AI teams. Requires 4+ years of experience and strong written communication.

Job DescriptionWith over 50 years of experience and more than 200 employees, Paychex Europe Germany GmbH is one of the leading providers of payroll services in Germany. From our offices in Hamburg, Berlin, and Rostock, we serve more than 6,000 companies — reliably, digitally, and in full compliance with legal requirements.

Structural Engineer needed for diverse projects. Design, analyze, and ensure compliance of structural systems. Minimum 3 years experience required. Fluent in German and English.

Leads global go-to-market strategy for the Life Sciences Automation product portfolio. Develops product positioning, messaging, and value propositions. Drives market adoption and commercial growth. Collaborates cross-functionally with Product Management, Sales, Marketing, and Strategy & Innovation.

Conduct geotechnical analyses for offshore foundation systems, including pile drivability studies and technical reports. Represent the company in customer projects and technical discussions. Support R&D initiatives and automation tool development. Collaborate with internal and external stakeholders. Requires a degree in Civil Engineering, Geotechnics, or Geology with experience in a marine or offshore environment.

Manage and oversee international development projects for contact and spring technologies. Introduce innovative technologies and best practices. Select materials, establish partnerships, and provide technical support.

Engineer (all genders) - Testing - Qualitätsmanagement, IT will coordinate test series, support process implementation, and participate in benchmark studies. Requires a degree in aerospace, composite materials, or plastics engineering and at least one year of experience in material testing, especially plastics.

Manage cross-functional projects focused on automation and efficiency in logistics, production, and maintenance. Design and implement automation solutions, develop standardized concepts, and introduce process improvements globally.

The HR Business Partner, DACH supports Practice Group Talent Leads with talent services, aligning HR strategies with Practice Group organizational goals. Responsibilities include talent pipeline management, performance management, reward, coaching, workforce planning, integration, onboarding, mobility, employee relations, engagement, recruitment, and partnership with People Teams.

This role involves on-site support for aircraft inspections, creating non-conformities in SAP, and shift work. Responsibilities include technical assessments, complaint report preparation, and collaborating with suppliers and manufacturers.

Develops project master schedules for offshore wind farm projects, maintains and updates schedules, identifies risks and deviations, and supports project optimization. Requires a technical or engineering degree, experience in project planning within complex projects, and proficiency in Microsoft Project or Primavera P6.

Senior Tech Consultant to design, stabilize, and evolve the Microsoft Dynamics 365 ecosystem, including Customer Engagement, Finance & Operations, integrations, and governance. Lead complex technical initiatives, translate business needs into technical requirements, and drive platform stability and compliance.

Leads innovation in food by developing product ideas and technical solutions. Aligns with R&D Category Leads on innovation initiatives. Implements innovation ideas into the marketplace. Drives optimized ways of working and fosters external collaboration.