freelance English-speaking jobs in Mannheim

The BSZ seeks a DevOps Engineer to establish and expand a discovery index. Responsibilities include coordinating Kubernetes and SolrCloud infrastructure, developing SolrMarc-based processes, and integrating relational data storage. The ideal candidate has experience operating Linux environments, Kubernetes, and Apache Solr.

Develop and manage software products for intralogistics. Translate requirements into user stories, prioritize them, and ensure implementation. Collaborate with stakeholders, customers, and development teams.

Ensures availability, stability, security, performance, and scalability of BI/ML platforms. Designs and operates data platforms based on container technologies in cloud and hybrid environments. Automates and optimizes processes using CI/CD pipelines, GitOps, and Infrastructure-as-Code.

Mitsui & Co. Deutschland GmbH seeks a Tax & Accounting Specialist to prepare tax declarations, maintain tax records, and assist with audits. Requires a Certified Accountant, Tax Specialist, or comparable certification, experience in tax, and proficiency in German and English.

The Payroll Manager is responsible for the end-to-end German payroll process for approximately 700 employees. The role involves managing monthly payroll runs in SAP and SuccessFactors, verifying master data, and handling payroll-related inquiries. The position requires several years of professional experience in German payroll, advanced knowledge of German wage tax and social security regulations, and strong SAP skills.

Senior Data Analyst to develop sophisticated analyses of data from tactical simulations, agent behavior, and sensor systems. Develop metrics and evaluation logic for defense-related issues and build analysis pipelines, dashboards, and reports. Requires 10+ years of experience in data analytics, proficiency in Python, SQL, and experience with complex technical data. Must have a genuine interest in defense and security applications.

ZeinPharma Germany GmbH seeks an IT System Administrator to develop and manage their IT infrastructure. Responsibilities include network and firewall administration, Windows Server management, Microsoft 365 tenant administration, ERP system support, endpoint management, and IT security implementation.

Senior Kernel & Hypervisor Engineer will build the EC2 Nitro Hypervisor for AWS, developing virtualization components and automating infrastructure flows. Responsibilities include designing, testing, and deploying solutions across the virtualization software stack, driving operational excellence, and influencing the technological roadmap. Experience designing or architecting new and existing systems, full software development life cycle, and writing clean, optimized, and scalable code using C or Rust is required.

Board-certified or board-eligible radiologist needed for full-time, part-time, or per-click remote position. Focus on musculoskeletal and neuro cases with general radiology skills required for outpatient x-ray, US, and CT studies.

Research assistant/doctoral candidate to develop HTS magnet systems for the FAIR facility. Responsibilities include electromagnetic design, construction, testing, and documentation. Requires a university degree in physics or applied physics and advanced knowledge in mechanical engineering, cryogenics, electrical engineering, or related fields. Experience with superconducting magnet technology is advantageous.

Investment Valuation Manager / Associate provides valuation expertise for renewable energy assets across their lifecycle (development, transactions, and operations). You will support investment decisions, refine valuation methodologies, and collaborate with stakeholders. Requires 3-5 years of experience in valuation support for transactions, strong Excel skills, and fluency in English.

A fully funded 4-year postdoctoral position is available at the Max Planck Institute for Human Cognitive and Brain Sciences in Leipzig, Germany. The position is focused on social cognition and how spatial coding principles extend to social cognition and belief formation. Applicants should have a PhD in a relevant field and expertise in cognitive neuroscience methods.

Prepares, negotiates, and finalizes agreements with study sites, ensuring compliance with contractual processes and client expectations. Identifies and assesses legal, financial, and operational risks. Coordinates with internal departments to align site startup activities with contractual timelines.

Supports the day-to-day management of the Converse business, driving operational excellence and contributing to the strategic direction. Manages account relationships, executes sales and go-to-market plans, and collaborates with cross-functional teams. Requires strong account management, sales, and communication skills.

Electrical Engineer needed for test lab. Responsibilities include creating test specifications, operating equipment, evaluating results, and analyzing deviations. Requires a degree in electrical engineering or equivalent, experience in the transformer sector, and proficiency in Visual Basic and MS Office. Must be physically fit for high-voltage work and fluent in German and English.

Transaction and Valuation Manager (f/m/d) will lead valuation workstreams, prepare performance analysis, and model financial scenarios for E.ON Group decisions.

Senior Institutional Sales professional will acquire and cultivate institutional clients, manage mandate onboarding, and represent the company at industry events.

Research Assistant (m/f/d) for a limited period of 2 years at the Faculty of Electrical Engineering, Chair of Signal Processing for Medical Applications. Responsibilities include independent research on speech enhancement, multimodal signal analysis, and analytics for interpretable AI.

BBH Group seeks an AI & Automation Engineer to design, develop, and operate AI applications, automations, and agent systems. You will translate business requirements into technical solutions, implement workflows, and integrate business applications with AI models.

Head of Regional Operations will consolidate fragmented IT operations across Europe, AMWA, and APAC into a centralized organization. Responsibilities include building regional IT leadership teams, managing onsite support and field engineering, restructuring operations for efficiency, and ensuring compliance with security policies. Requires experience running large-scale, multi-country IT operations and restructuring IT organizations.