java English-speaking jobs in Mainz

Automotive Technical Specialist Level 1 provides technical support for complex vehicle issues to dealerships and repairers. Responsibilities include initial triage, remote guidance using OEM procedures, and escalating unresolved cases. Requires strong diagnostics experience and proficiency in German and English.

Develop power and precision measurement electronics for test systems from concept to final product. This role involves circuit design, modeling, verification, and testing, requiring expertise in Analog & Power hardware design.

Lead end-to-end delivery of the AIR·MS platform and D2E projects. Manage multi-stakeholder workstreams, driving cross-functional delivery across engineering and research teams. Requires 5+ years in software development with data platforms experience.

Lead and build LiveEO's global Sales Engineering organization, unifying regional teams. Own the strategy and technical rigor for pre-sales, focusing on geospatial analytics and embedding MEDDPICC discipline.

Chief Engineer for the copper industry. Organize new product and technology development, conduct industry research, and develop technical requirements. Requires a degree in Materials Science or Mechanical Engineering and 10+ years in copper processing R&D.

Senior Fullstack Engineer builds high-traffic web applications using PHP (Laravel) and Vue.JS or React.JS. Responsibilities include developing RESTful APIs, leading technical conception, and ensuring code quality in an agile environment.

Support the Creative Team by creating visual content for e-commerce brands, including packaging, product images, and social media graphics. Requires design foundation, Adobe Photoshop/Illustrator skills, and German/English proficiency.

Head of People & Operations to build organizational and operational systems for a growing biotech company. This senior, hands-on role reports to the CEO, owning People, operations, and Series A readiness. Requires experience building processes in early-stage organizations.

Sr. Solutions Engineer to demonstrate Databricks' Data Intelligence Platform to solve complex customer data challenges. Responsibilities include building client relationships, hands-on evaluation with Spark, and advising on Big Data Analytics architecture. Requires Python coding and Big Data knowledge.

Lead a team managing technical building equipment and intralogistics maintenance across North Germany, Denmark, Sweden, and Norway. Develop maintenance concepts, control schedules, and report key figures.

Intern supporting Brand Portfolio and Consumer Journey Steering for iconic home appliance brands. Tasks include market analysis, shaping brand perception, and creating presentations. Requires enrollment in Business Administration or Marketing.

Senior Data Scientist needed to drive business value using complex datasets. Responsibilities include building ML models, defining data strategy, and collaborating cross-functionally. Requires 5+ years of experience and proficiency in Python/R/Scala.

Doctoral Researcher position in digital platform ecosystems, focusing on federated networks. Requires a Master's in economics, business administration, or related social science with quantitative skills.

Experimental Quantum Physicist needed to operate ion-trap quantum computing hardware. Responsibilities include developing control protocols, performing calibration, and creating theoretical models. Requires strong AMO physics experience and a PhD.

Customer Success Manager owns customer success and commercial development for a portfolio. Drive Net Revenue Retention through adoption, renewals, and expansion. Requires German C1+ and SaaS/B2B experience.

Warehouse employee role involves unloading, lifting, transporting, scanning, sorting, and redirecting products. Requires ability to stand/walk for extended periods and lift up to 15kg. German or English skills are required.

About this roleAs Lead Vendor Management & Operation s, you will lead the team responsible for the operational management, performance and development of Lieferando's vendor logistics partners across Germany. In this role, you will own the overall Vendor Operations & Management agenda, covering external fleet management, vendor performance, strategic partnerships and logistics account management.

Act as a CHRO for departments, focusing on engagement, performance, and organizational development. Lead talent strategy and drive company-wide changes using a data-driven approach. Requires 5+ years in strategic HR or consulting.

Pharmacovigilance Associate performs routine PV tasks like case intake, data entry, and literature monitoring to support Local safety officers in the DACH region. Requires a Life Sciences degree, fluency in English and German, and foundational PV knowledge.

Lead PUMA’s global consumer journey across all marketing channels, from awareness to loyalty. Own the end-to-end consumer journey architecture and digital demand engine, driving revenue growth. Requires 15+ years in digital marketing and global team leadership.