freelance English-speaking jobs in Bielefeld

SOSi seeks a Database Administrator with 8+ years of experience in SQL Server, Microsoft Server, Active Directory, and PowerShell scripting. Must possess a DOD Secret clearance and IAT II certification. Responsibilities include database installation, configuration, maintenance, performance monitoring, security, and user support.

Experienced Document Controller needed for a flagship program in Germany. Manage document control for technical documents, drawings, and commercial correspondence on a complex build. Administer ACC and Procore, ensure version control, and coordinate document activities. Proven experience in document control on major construction projects and proficiency with Aconex, Procore, or similar CDE required.

As an intern/working student in a strategic AI Transformation initiative, you will provide executive assistant-style support to the Program Manager. You will coordinate program operations, prepare decision-ready materials, and support governance, documentation, and communication.

We are a fast growing and leading global information and communications technology (ICT) solutions provider. Huawei is active in more than 170 countries and has over 197,000 employees of which more than 80,000 are engaged in research and development (R&D). With us you have the opportunity to work in a dynamic, multinational environment with more than 150 nationalities worldwide.

The Technical University of Munich seeks a Professor in "Carbon Composites" to begin in winter semester 2026/27. The professorship will be assigned to the TUM Department of Aerospace and Geodesy. The successful candidate will conduct research and teaching in carbon composite technology, with a focus on manufacturing processes and applications in aerospace, ground transportation, and energy systems.

Supervises front office operations, including guest check-in, account setup, payment processing, and reporting. Provides guest service, addresses requests, and ensures adherence to company policies and procedures. Trains, evaluates, and coaches employees.

An exciting opportunity to join our client's team at a fast-growing digital product engineering company with a global presence and a team of over 19,000 experts dedicated to building inspiring products and services. We are looking for a Senior Data Architect – Presales & Delivery to join this organization.

Data Center Facility Engineer needed for a 24/7 operation. Responsibilities include operating and maintaining critical infrastructure (HVAC, UPS, generators, cooling systems), monitoring systems, responding to incidents, and executing customer requests. Experience in a technical environment such as data centers, hospitals, or large buildings is required.

Senior Software Engineer needed to develop and maintain backend systems for a real-time voice interaction platform. Responsibilities include designing and managing the voice interaction pipeline, ensuring low-latency performance, and collaborating with product and engineering teams. Strong backend engineering experience, ideally with Python, and experience building real-time audio systems are required.

Oracle DBA with 10-12 years of experience, including 6 years on the Exadata platform. Expertise in RAC, ASM, Dataguard, performance tuning, backup/recovery, and migration. Strong scripting and troubleshooting skills.

Role Overview We are seeking an experienced Electrical / E&I Supervisor to support site activities on a Waste‐to‐Energy project in Frankfurt. The position focuses on the supervision of electrical and instrumentation installation, testing and commissioning, ensuring full compliance with German regulations and project technical standards.

Internal Controller | Dresden | Hybrid Ready to step into a high impact finance leadership role with a global group? We're hiring for a business unit controller to join a fast growing, innovative manufacturing business in Dresden. You'll partner closely with the general manager, owning financial performance across multiple entities while shaping strategy and driving improvement.

Leads the Support Team, Application Engineers, and technical workflow for the 3D Digitizing division. Ensures high-quality customer support, efficient demo and training operations, and continuous process improvement across Europe. Coordinates between customers, AEs, support, and sales to ensure smooth cooperation and high technical quality standards.

Develops and prepares C&I concept designs, translating project requirements into technical specifications. Coordinates internal and external C&I interfaces, prepares tender documentation, and identifies required components. Manages technical interfaces with other disciplines, contractors, and stakeholders.

Customer Engagement Manager EMEA will develop customer-focused marketing programs, create customer-facing materials, and translate complex topics into clear communications. The role supports trade strategy, sustainability initiatives, and event execution.

Quantity Surveyor for an oil and gas downstream project. Responsible for entering subcontractor work into a database and detecting budget deviations. Requires a Surveyor diploma, refinery and oil and gas project experience, fluency in English, and on-site availability.

Experienced Project Manager with a civil engineering background needed for a 400MW / 700MWh Battery Energy Storage System (BESS) project. Oversee civil scope of works, manage subcontractors, and ensure project delivery to safety, quality, and program standards.

Staff Python Developer will design and implement simulation components with high-performance optimization algorithms. Experience with Go or Rust and end-to-end project delivery is required.

Working student will develop and maintain Python-based analytical models to assess liquidity, market depth, and market maker performance metrics across derivatives products.

Senior R&D Engineer to lead and contribute to the design and development of innovative cardiovascular medical devices.