freelance English-speaking jobs in Bielefeld

Working Student / Intern supports marketing and sales efforts for a Berlin-based AI startup focused on automating legacy software. Tasks include content creation, outreach campaigns, and sales material development.

Senior Backend Engineer (C#/.Net) will design, develop, test, and ship robust software applications, APIs, and workflows. Responsibilities include participating in technical architecture design, attending scrum ceremonies, and analyzing business requirements. Requires 5+ years of experience with C#, .NET framework, cloud-based applications, microservices, and RESTful APIs. Experience with SQL Server, ORMs, and messaging platforms is preferred.

SEEBURGER is a leading global B2B software provider seeking a Modern Workplace Engineer to integrate customer IT systems and ensure data accessibility for digitalization.

Working Student in Finance will support financial operations, including invoice processing, customer and supplier communication, financial reporting, and process optimization.

Supports global program implementation across Hub Europe Service units by ensuring adherence to standard processes and driving effective usage of core systems. Engages with stakeholders to gather and analyze business requirements, harmonizes business processes, and monitors performance. Collaborates with teams to identify training needs and drive change management initiatives.

Senior Full Stack Developer needed for remote role. Fluent Dutch or French required, with understanding of the other. Experience with Typescript, Python, AWS, and Angular is essential. Must have a strong understanding of TDD and passion for continuous improvement. Experience with Aurora, DynamoDB, Athena, Apache Parquet, AirFlow, ETL, and big data processing is a plus.

Support the coordination and execution of international consulting and business development projects. Assist in project planning, organization, and market analysis for healthcare clients. Contribute to marketing initiatives and website content creation.

The Server Management department seeks an Automic Automation Administrator to plan, design, and administer the "Automic Automation" product suite for workload automation. Responsibilities include further developing, providing user support, and implementing new product features, patch management, and administration of the associated product environment. The role also involves providing and configuring web servers, participating in the creation of standards and guidelines, monitoring and controlling the central application, and troubleshooting.

The IT Development department seeks an IT Specialist for SAP S/4HANA Analytics and Finance. Responsibilities include application support, development, and optimization of SAP FI standard and in-house developments. The role also involves support and further development of SAP S/4HANA Finance applications, monitoring interfaces, and consulting with internal departments. Required criteria include a degree in (business) information technology, business administration, or a comparable qualification, and several years of experience in ABAP OO development, SAP FI, BW, and SAC. Fluent German and English skills are also required.

Internship in hardware development, validation, and simulation for E-mobility wireless charging. Tasks include circuit simulations, hardware setup and testing, and test series execution. Requires enrollment in an engineering degree program, basic electrical engineering knowledge, and initial experience with PCB assembly and/or LT Spice.

As a Senior Master Data Specialist SAP, you will ensure high-quality global master data and support efficient end-to-end processes. You will define and manage global master data processes, analyze data setups, and drive improvements in data quality. You will also organize knowledge exchange, provide training, and support smooth ERP usage.

As a geophysicist, you will provide technical support for geophysical survey works in unexploded ordnance (UXO) detection. Responsibilities include data management, coordination of measurements, training surveyors, and reporting on project results.

Experienced SAP EH&S Lead Consultant needed for a 12-month contract to lead the design, implementation, and optimization of SAP EH&S solutions for a S4 HANA Roll Out project.

Plan, design, and manage central communication and database systems. Responsible for the stable operation and further development of the Microsoft 365 Exchange environment. Define technical requirements for database and email systems, particularly Microsoft Exchange. Ensure operational readiness of databases and contribute to IT security concept development.

Field Application Engineer needed for full-remote role in Southern Germany. Provide product support, training, and technical assistance to dealers and end-users. Manage relationships, identify opportunities, and collaborate with internal teams. Requires native German, technical understanding, and strong communication skills.

Manages production operations for a manufacturing facility with over 150 employees across seven departments. Ensures adherence to production schedules, manages budgets, and implements lean manufacturing principles to optimize processes and reduce costs.

Manages a team of Application Engineers, providing pre-sales support to sales, partners, and end-users. Coordinates customer visits, training activities, and product introductions. Requires a Bachelor's degree in electronic engineering or computer science, fluency in German and English, and 10+ years of experience in a similar role.

Global Procurement Manager responsible for subcategories within Finished Products portfolio. Develops and implements global sourcing strategies, manages international suppliers, and collaborates with cross-functional stakeholders.

Internship or thesis focusing on wave optical propagation algorithms for micro-optical structures. Students will investigate and compare algorithms for applications like optical waveguides and printed micro-optic components.

Responsible for the operation, maintenance, and development of the network and server landscape. Focus on supporting firewall systems, site-to-site VPN, patch management, and LAN/WAN/WLAN infrastructures. Analyze and resolve malfunctions, assist with infrastructure projects, and ensure IT security compliance.