java English-speaking jobs in Mainz

Support management in a fast-paced international defense venture. Manage complex schedules, coordinate travel, and act as a key contact for internal and external stakeholders. Requires a degree and several years of executive support experience.

Payroll Specialist for EMEA Payroll team. Manage day-to-day payroll across various platforms, ensuring statutory compliance and accurate, timely processing. Requires French/Dutch speaking with eBlox experience OR German skills with ADP.

Senior Embedded Software Developer to improve the quality and stability of RIOT-based thermostat software. Responsibilities include developing energy optimization and motor control features, fixing bugs, and adapting software to new hardware. Requires C/C++ expertise.

Provide orientation and cultural adaptation services to US servicemembers and families. Duties include tours, language classes (German/ESL), and providing guidance on life in Germany. Requires fluency in English and German.

DKFZ invites applications for Postdoctoral Fellowships to advance cancer research. Candidates must hold a PhD, demonstrate scientific excellence, and apply by September 8.

For our secondary school in Heilbronn and Erlenbach we are looking for a Biology Teacher (Bilingual: German & English) (in part-time or full-time)

Senior Scientist, Computational Pathology Biomarker Lead (Oncology) at AstraZeneca. This role contributes to high-performance, data-driven research and development within the Enterprise AI organization, focusing on AI-driven solutions for patient selection and biomarker development.

Junior Clinical Research Associate contributes to clinical trial operations by monitoring studies, managing documentation, and ensuring compliance with protocols. Requires a relevant degree, knowledge of ICH-GCP, and proficiency in English and German.

Director Supply Network Lead to drive global supplier network strategy and performance. Responsibilities include developing commodity strategies, managing supplier relationships, and leading international teams. Requires 10+ years in strategic procurement within an international setting.

Security Manager for Wirtgen Group. Lead security governance, manage travel risk, oversee physical security, and advise senior management in a complex international environment. Requires 5-10 years of relevant experience.

Experienced Electrical Power Engineer needed for a 12-month freelance industrial project. Responsibilities include developing technical solutions, preparing documentation, and supporting construction management. Requires a degree in Electrical Engineering and experience with power distribution systems.

Agency Partner drives revenue growth and product adoption for key agency partnerships. This role requires strategic leadership, data-driven insights, and building C-level relationships. Must have 7+ years in agency partnerships or related fields.

Working Student (m/f/d) in HR / Talent Acquisition will support the end-to-end recruitment process, including job postings, candidate sourcing, and interview coordination. Assisting hiring managers and the HR team in daily recruitment activities and maintaining applicant tracking systems are also key responsibilities.

Electrical Lead to manage electrical site delivery for a large data center construction project. Responsibilities include installation, subcontractor coordination, technical interfaces, and quality control for LV/MV systems. Requires an electrical engineering degree and 8+ years of large project experience.

Senior Scientist to drive X-ray beamline and imaging technology advancement for semiconductor inspection systems. Responsibilities include technology evaluation, simulation, and experimental design. Requires a PhD and experience in X-ray physics or imaging.

Experienced Wind Turbine Technicians needed to support installation, servicing, and maintenance of large wind farms. Responsibilities include diagnosing and repairing electrical, mechanical, and hydraulic faults. Requires relevant technical qualification and experience.

Property Manager needed to manage a portfolio of commercial real estate assets in Germany. Responsibilities include tenant relations, lease administration, and operational reporting. Requires experience in commercial property management and German language skills.

FX Sales role requires experience selling FX solutions, especially structured products, and valid MiFID certification. Responsibilities include lead research, making introductory calls, building sales pipelines, and meeting revenue targets while monitoring FX movements.

Develop and expand strategic key accounts in the DACH region for Industrial Automation. This role requires technical sales experience, managing large accounts, and strong German and English skills.

Architect developer experience by building scalable, invisible platforms on Google Cloud Platform. Own GKE/Kubernetes infrastructure, weaponize CI/CD, and implement proactive security using IaC.