freelance English-speaking jobs in Bielefeld

IT Cloud Engineer OT needed for operation, administration, and development of Windows servers and clients in OT environment. Support hybrid infrastructures (on-premises & Microsoft Azure), Active Directory/EntraID, and IT/OT security concepts.

Develop and maintain modern front-end and back-end systems using TypeScript, Angular, and AWS Lambda with Node.js. Select and deploy AWS technologies and support the design of new product ideas.

Responsible for the technical operation of web and mobile applications, including ensuring availability and functionality. Manage incidents, change and release processes, and collaborate with service providers.

Senior IT Administrator needed for full-time role. Responsibilities include infrastructure administration, Active Directory management, backup/restore, and support. Requires experience with Windows and Linux, virtualization, and network technologies.

Develops high performance analog/mixed-signal circuits from concept to production. Performs complex circuit design, simulation, verification, and validation. Provides technical leadership in IC product development and interfaces with customers and stakeholders. Requires a PhD, Master's, or Diplom degree in Electrical Engineering or microelectronics with a focus on analog/mixed-signal IC design and 5+ years of experience. Strong knowledge of Cadence EDA tools and experience in low-noise, low-power analog circuit design is essential. Excellent team player with strong organizational and prioritization skills. Proficiency in English is required.

Leads a team of experts in commodities, material fields, and manufacturing processes for Siemens Energy's global Systems commodities. Collaborates with Commodity Managers, CVE colleagues, Design Engineers, and SQD colleagues to deliver supply chains, develop technologies, and provide technical expertise.

The kiz, a central institution at the University of Ulm, seeks a Project Assistant bwHPC-S5 to support scientists in the installation, porting, and migration of applications to the JUSTUS 2 research cluster. The successful candidate will analyze system usage, perform performance optimizations, and advise on resource-efficient system use.

Manager HR Servicecenter Germany will develop and implement HR processes, act as an employee point of contact, manage payroll and benefits, and oversee compensation processes and HR analytics.

Provides on-site IT support to schools and businesses. Performs error analysis, installation/configuration, administration, and maintenance of IT infrastructure. Trains IT contacts and contributes to the development of digital products. Requires IT training or experience, proficiency in Windows environments, and a class B driver's license. Fluency in German is required, English is preferred.

Drive the execution of the global Cough & Cold strategy, co-create brand strategy, and lead global brand initiatives. Manage market enablement, analyze performance, and translate insights into actionable recommendations.

Dual study program to become a certified administrative IT specialist (m/f/d) at Immobilien Freistaat Bayern. The program focuses on IT operations and includes programming, software engineering, IT security, and government economic management.

Senior Clinical Research Associates (CRA) with 2+ years of experience are needed to monitor clinical trials, ensure protocol and regulatory compliance, and manage site documentation. Responsibilities include conducting on-site and remote monitoring visits, assessing data accuracy, and collaborating with investigative sites. Must have a Bachelor's degree in a life sciences field, fluency in English and German, and a valid driver's license.

Logistics employee needed for loading, unloading, packing, and transporting large components. Must have CE and B driving licenses, German language skills, and experience handling industrial trucks. Shift work and weekend work required.

Senior Technical Manager needed to lead net zero carbon building retrofit and decarbonization initiatives for office, retail, industrial, and residential properties in Europe. Requires experience in delivering net zero carbon programs, energy efficiency projects, and cost-benefit analyses. Must be proficient in energy modeling software and the CRREM tool.

Build, deploy, and maintain cloud-native software infrastructure for a company focused on decarbonizing the cement and concrete industry. Collaborate with engineers to ensure a top-notch AWS-based infrastructure, Kubernetes platform, and development processes. Support application developers and ML specialists with tooling, deployment, CI/CD, and other infrastructure-related needs. Automate and optimize infrastructure using Python or Go. Design for high security, reliability, and availability, including logging and monitoring. Mentor and guide other engineers.

Master Data Project Manager to drive digital transformation projects, ensuring quality standards and implementing technical solutions for data quality improvement across SAP R/3 and S/4HANA.

Commissioning Manager for HVDC systems leads all commissioning activities for defined projects, ensuring compliance with GE standards and client satisfaction. The role involves coordinating with subcontractors, preparing documentation, and managing on-site commissioning teams. Requires experience in commissioning HVDC systems, substation projects, and international travel.

IT Administrator responsible for maintaining and documenting the company network, setting up hardware and software, and supporting the integration of new IT applications.

Supports the newly established portfolio board by preparing and accompanying meetings, creating reports, and maintaining the portfolio. Models business processes in BIC Process Design software. Advises and collaborates with internal stakeholders.

System Administrator will operate parts of the IT infrastructure used in the Lower Saxony judiciary based on solutions from Microsoft, Netapp, FSAS, RedHat, Citrix, Veeam, and others. Participate in IT projects, including the introduction of new technologies, modernization of existing infrastructures, and implementation of automation and cloud solutions.