freelance English-speaking jobs in Bielefeld

Deploy and support Velocity EDA-to-ATE conversion flows for semiconductor customers. Develop and optimize automated conversion methodologies for various test environments. Analyze and resolve conversion, timing, and protocol issues. Develop automation scripts and utilities using Python, Java, and related technologies. Support AI-assisted engineering workflows for pattern debug, log analysis, and conversion validation. Collaborate with engineering on feature enhancements and customer requirements.

Experienced Service Advisor needed for established automotive company in Hamburg and Schleswig-Holstein. Provide professional customer support, analyze requests, and coordinate repair services. Minimum 3-4 years of experience as a Service Advisor in a car dealership required. Strong technical understanding and excellent communication skills are essential.

IT Administrator responsible for server infrastructure, networking, endpoint management, software licensing, and procurement. Requires experience with Linux and Windows server administration, IAM solutions, and IT support.

Intern/Working Student to the Co-CEO will work directly with the Co-CEO on strategic and operational priorities. Responsibilities include taking ownership of key initiatives across finance, people, and organizational topics, supporting AI tool adoption, conducting market research, and preparing decision-ready materials.

Manages 100-200 mid and mass market accounts, ensuring positive customer experience and revenue growth. Handles renewals, relationship development, and upsells. Supports assigned clients, responds to inquiries, and tracks renewals. Requires a 4-year degree and 2-4 years of related experience or equivalent work experience. Microsoft Suite experience required, Salesforce and software sales experience preferred.

Provides administrative support to the Sales Director and field sales staff. Manages customer relationships, fills sales funnels, and coordinates marketing activities.

Lead a team of software engineers in building and operating robust, secure, and scalable software and AI systems for industrial applications. Translate user requirements into technical visions and delivery plans, mentor engineers, and champion engineering excellence.

Supports the confidentiality, integrity, and availability of Yogi's information systems across European operations. Monitors, analyzes, and responds to security alerts, incidents, and suspicious activity. Administers and supports endpoint, identity, and access security controls. Investigates reported security issues and coordinates resolution. Contributes to ISO 27001, NIS2, and GDPR compliance activities.

Leads and develops the Software Production Support team, prioritizing production support and process improvement. Defines and implements robust processes for software-related production steps, including microcontroller flashing, firmware updates, and diagnostics. Ensures production tools are reliable, documented, and maintainable. Coordinates software-related production escalations and monitors KPIs. Requires several years of experience in embedded systems, production software, manufacturing test, industrialization, or technical production support. Experience with serial production, embedded software, firmware flashing, and production diagnostics is essential. Strong communication and analytical skills are needed to coordinate with various teams and identify systemic process weaknesses.

Salesforce Platform Architect (m/f/d) will design, implement, and manage Salesforce solutions to support sales, service, and marketing operations.

Leads the design and execution of experimentation frameworks, including geo-based and holdout incrementality testing. Evolves the organization's Marketing Mix Modelling (MMM) capability, including model development, calibration, and translation into actionable budget allocation recommendations. Develops sophisticated statistical models such as LTV prediction, churn scoring, and audience segmentation. Architects and governs the marketing data layer, ensuring best practice across dbt modeling, data quality, and documentation. Translates complex findings into compelling strategic narratives and executive-ready recommendations. Partners with Finance (FP&A) to ensure marketing efficiency metrics, budget frameworks, and unit economics (CAC, LTV, Payback Period) are consistent with company-wide financial reporting and planning. Collaborates with Data Engineering and Marketing Technology to define and shape the long-term marketing data stack roadmap. Leads the team’s thinking on how AI tools and techniques can augment the analytics workflow.

Provides administrative support including personnel, budgetary, manpower, and office automation services. Coordinates personnel actions, maintains employee records, assists with financial management, and ensures regulatory compliance.

Experienced HSE Supervisor needed for a 12-month freelance contract on a major Oil & Gas EPC project in Germany. The role involves overseeing contractor HSE performance, ensuring compliance with German regulations and industry best practices, and liaising with local authorities.

Senior Associate or Investment Manager to join a leading global alternative investment firm's Hamburg-based DACH private equity team. Focus on deal origination and execution across German-speaking markets for a recently closed, oversubscribed €1+ billion European lower-middle-market fund. Lead financial modeling, LBO analysis, and valuation on new investment opportunities. Coordinate due diligence, prepare investment committee materials, and support transactions end-to-end.

Junior to Mid-Level Industrial/Product Designer will contribute to the development of the NIO brand across product, mobility, CMF and fashion design. Responsibilities include translating design concepts into 2D and 3D models, supporting research and concept studies, and collaborating with stakeholders.

Logistics Support Specialist will monitor last-mile delivery operations, provide real-time support to drivers and partners, and resolve operational issues. The role involves tracking KPIs, identifying inefficiencies, and recommending process improvements. Strong problem-solving, communication, and data analysis skills are required.

Develop and maintain IT applications for risk management and regulatory reporting. Analyze banking issues and advise on technological solutions within the bank's data warehouse environment.

Design and optimize machine vision systems for semiconductor die inspection. Characterize optical and physical properties of semiconductor materials. Develop and validate physical models for sorting machinery. Collaborate with hardware and software engineers.

Head of Product for Traxon cargoHUB, CHAMP's global connectivity platform for air cargo. Define and execute product strategy, roadmap, and service delivery for messaging, APIs, and tracking services. Lead platform evolution, innovation, and customer-centric improvements. Requires 10+ years of experience managing complex IT products, strong understanding of air cargo ecosystems, and proven leadership skills.

Lead end-to-end data migration from SAP S4/HANA to GCP. Translate business requirements into data mapping documents. Validate data transformations and ensure alignment with business logic. Maintain data integrity and quality.