javascript English-speaking jobs in Bielefeld

Territory Sales Manager responsible for executing strategic plans for Vascular Closure products in Germany. Duties include territory management, driving sales growth, and building relationships with key accounts and distributors. Requires medical device market knowledge and clinical support competence.

Generative AI Developer role within an HPC team. Design AI solutions for customer use cases, build prototypes, and integrate novel AI into service portfolios. Requires strong Python, Linux, and generative AI knowledge.

Data Center Engineering Operations Technician responsible for best practice systems and problem resolution on data center electrical and mechanical infrastructure. Requires hands-on work with M&E systems, safety standards, and continuous improvement.

Collect, analyze, and evaluate critical data to boost maintenance and operational performance across railway systems. This role involves integrating operational data, assessing diagnostic systems, and collaborating with stakeholders. Proficiency in English and IT affinity are required.

Oversee operation and maintenance of electrical and mechanical infrastructure for AWS Data Centers. Responsibilities include ensuring safety, maintaining technical operations, and driving continuous improvement. Requires knowledge of key electrical competencies.

Parcel Delivery Driver responsible for safely delivering shipments up to 31.5 kg using company vehicles. Requires a valid Class B driver's license and German language skills.

Experienced Data Center Technician needed for contract work supporting mission-critical infrastructure. Responsibilities include hardware installation, structured cabling, server racking, and troubleshooting. Requires 2+ years of IT infrastructure experience.

Lead Technician supporting Collins Aerospace's Interiors portfolio. Responsibilities include on-wing troubleshooting, technical support, and customer training for commercial seating. Requires 6+ years in aircraft technical environments.

Lead end-to-end orchestration architecture for the IRIS2 5G-NTN multi-orbit satellite system. Responsibilities include technical governance, dependency management, and aligning roadmaps across complex network domains.

Senior Engineer to drive virtual product development for power semiconductor packages. Lead multiphysics simulation, AI-enhanced workflows, and digital twins for SiC and GaN modules. Requires expertise in simulation, Python, and machine learning.

Operate and monitor modern production equipment to ensure safe and smooth processes. You will run machines according to specifications, monitor parameters, and inspect products for quality compliance.

Senior Software Support Engineer focused on customer support for Slinky. Requires 5+ years in technical support/software development with strong knowledge of Kubernetes, Linux, and Go/C.

Mid/Senior AI LLM Engineer to fine-tune and improve self-hosted open-weight LLMs for conversational products. Requires Python, PyTorch, Hugging Face, and experience with SFT, LoRA, and DPO.

Senior Consultant advises international clients on energy transition challenges using quantitative modeling and economic analysis. Responsibilities include modeling power markets, system planning, and developing solutions for grid integration.

Manage daily accounting operations and lead the local accounting team. Coordinate monthly, quarterly, and annual closings under IFRS and German GAAP. Expertise in SAP S/4HANA and financial reporting is required.

Director, Labor & Employee Relations leads a team across Europe, delivering compliant, high-quality employee relations support. This role provides strategic oversight for case management, risk mitigation, and policy development. Requires 15+ years in employee relations and 3+ years in people leadership.

Operational Resilience & Recovery Lead to establish governance, strategy, and standards for critical systems and data within a new cloud-first IT organization. This role combines strategic leadership and stakeholder management across various technology teams.

Logistics Employee role available for full-time or part-time positions. This position involves working fixed shift schedules, with options for day or night shifts.

Senior Talent Sourcer identifies and engages top talent for BCG’s EMESA consulting teams. This role involves building diverse pipelines, performing talent mapping, and assessing candidate fit. Requires 3-6 years of sourcing experience and fluency in English and German.

Solutions Architect to drive technical transformation for European strategy using Microsoft Business Central. Translate business requirements into integration solutions, evaluate technologies, and build system interfaces. Requires IT degree and fluency in German and English.