freelance English-speaking jobs in Bielefeld

Support the Accounting and Controlling team during a 12–15 month SAP transformation. Tasks include statutory accounting (US GAAP), AR/AP, and driving automation in Controlling and reporting. Degree in Accounting or related field required.

Clinical Trial Liaison supports global development execution in Austria, Germany, and Switzerland. This role interacts with investigator sites, providing regional insights for feasibility, site selection, and patient recruitment. Requires 8+ years of relevant industry/CRO experience.

This role combines internal audit responsibilities with hands-on offensive cyber security expertise. Auditors examine and evaluate end-to-end processes, systems, software, and IT landscapes with a focus on cyber and software risks. Responsibilities include performing vulnerability assessments and penetration tests, assessing the effectiveness of technical and organizational security controls, and preparing audit reports.

Skilled Service/Electrical Technicians needed to install, maintain, troubleshoot, and repair industrial, mechanical, and electrical systems at client sites across Germany. Requires vocational training and a valid Class B driving license.

This role requires an experienced Contracts & Claims Manager for a BESS EPC project. Responsibilities include assessing and negotiating change orders, claims, and contractual matters across the project lifecycle. Requires technical understanding of EPC and construction contract law.

Motivated tutors are sought to provide private lessons in Business, Management, Economics, Marketing, and Finance. Knowledge in these fields is required, but no prior teaching experience is necessary.

Training Industrial Clerk role involving procurement, production planning, logistics, and customer distribution of steel products. Requires a general education degree with good grades in German, math, and English.

Buyer responsible for sourcing and procuring technical components for railway diagnostic and measurement systems. Requires 3-6 years of procurement experience, knowledge of railway safety standards (EN 50126, EN 50128), and fluency in German and English.

Highly organized Content Manager needed to drive content and production. Responsibilities include discovering stories, producing videos, livestreams, and social content, while managing complex schedules and coordinating logistics.

Site Manager for utility-scale BESS projects, leading on-site delivery from equipment receipt to handover. Responsibilities include managing safety, schedule, quality, and coordinating all site interfaces. Requires a relevant engineering degree and 5+ years in power/BESS projects.

Lead Global Partnerships and Fundraising to drive funding pipeline expansion and strategic relationships. Responsibilities include securing major grants, negotiating complex deals, and managing C-level donor relationships globally. Requires 7+ years in high-level fundraising or partnership development.

Mid-level Legal Counsel needed to support IGNIS's German business. Focus areas include administrative law, renewable energy project development, and corporate matters. Requires 3+ years of experience, German law knowledge, and fluency in German and English.

Operations Manager to lead production performance and drive continuous improvement in a dynamic manufacturing environment. Focus areas include Lean transformation, team development, and achieving world-class safety, quality, cost, and delivery results.

Senior Data Engineer will build and scale real-time streaming data pipelines for production ML systems. Responsibilities include developing feature engineering infrastructure, optimizing ETL and streaming workloads, and collaborating with Data Science and Backend Engineering teams. Requires 5+ years of experience building production data platforms with Apache Flink, Kafka, and real-time streaming architectures.

AI and Experience Orchestration Director to bring innovative solutions to Genesys' AI portfolio. Requires subject matter expertise in AI-powered CX, 10-12 years in software/AI roles, and experience influencing complex opportunities.

Design and optimize end-to-end supply chain processes, focusing on excellence, standardization, and digitalization. Requires 10+ years in Supply Chain Strategy with expertise in inventory and system transformation. Fluent in German and English.

Quality Management Engineer to own internal audits, coordinate CAPAs, and act as a QA specialist. Requires 3+ years in quality management, ideally in ISO 13485, with strong analytical skills.

Research Associate/PhD Student/PostDoc role focusing on Multidimensional Optical Information Processing. Investigations involve optical diffractive neural networks using MEMS phase modulators and multimode fibers. Requires strong German and English skills.

BIM Coordinator needed to support multidisciplinary design and construction teams on complex projects. Responsibilities include creating and managing BIM models, developing BEPs, leading coordination meetings, and conducting clash detection. Requires 2-4 years of BIM coordination experience.

Junior Digital Modeler to bridge creative sketches and engineering reality. Build high-quality Class-A surfaces using Blender and Alias. Coordinate external vendors and support the full design iteration cycle. Requires a relevant degree and a portfolio.