java English-speaking jobs in Mainz

Workday & Digital HR professional to analyze, optimize, and digitize HR processes. Support global HR systems environment, including documentation, access, and testing. Provide training and act as a partner to internal stakeholders on HR process and digital solution design.

SAP Process Consultant / Senior Architect needed to analyze, design, and optimize end-to-end SAP processes across business functions. Collaborate with stakeholders to improve efficiency and drive automation.

Associate to join the Debt Structuring & Portfolio Management team, focusing on infrastructure and private debt. Support deal structuring, manage existing investments, and prepare investor reports. Requires a degree in a relevant field and at least three years of experience in infrastructure debt/project finance/structure finance. Strong German and English language skills are essential.

Professional Services Consultant to deliver Anaplan solutions, translate business problems into models, and nurture client relationships. Requires Anaplan expertise, consulting experience, and strong communication skills.

Mechanical Design Engineer to develop precision mechatronic and opto-mechatronic subsystems for high-end manufacturing equipment. Requires a Master's degree in Mechanical Engineering, Precision Engineering, or related field and 3+ years' experience in precision engineering.

The Strothoff International School seeks a part-time or full-time Teacher for its Primary School in Dreieich. The Teacher will plan and deliver lessons aligned with the school's curriculum and the IB Primary Years Programme (PYP), ensuring alignment with Hessen curriculum requirements.

Bike Mechanic needed for refurbishment center in Düsseldorf, Berlin, or Stuttgart. Repair and refurbish e-bikes to high quality standards. 1-2 years of experience in bike or e-bike mechanics required. Fluency in German and/or English.

Freelance lecturer in Engineering Software Automation Technology needed for 48 teaching units starting July 1, 2026, in Berlin. Teach fundamental knowledge in areas like industrial automation systems, communication networks, and cybersecurity.

Product Manager to own a core area of a global B2C mobile app with millions of users. Strong product market fit, remote-first setup, and high autonomy. Must have product management experience in B2C/mobile apps, user research, and product analytics. German speaking required.

Lead the VIP program, building relationships with top players, driving engagement, and creating impactful experiences. Own the VIP experience, plan events, and communicate with players across multiple channels. Analyze KPIs, solve player issues, and stay up-to-date on game updates.

Float Assistant to support Investment Professionals in a global investment management firm. Provide administrative support, cover for Professionals, and assist with projects. Requires fluency in German and professional English.

As a Tech Lead IT Developer, you'll guide ML engineers and data scientists to tracebloc. You'll build and manage our developer community, create technical content, and speak at conferences. You have 2-4 years of ML or data science experience, are active in ML communities, and can write technical content that is both clear and helpful.

SAP EWM consultant or developer with minimum three years experience in logistics solutions implementation, preferably in discrete manufacturing. Fluent German and English required.

Leads strategic sourcing and category management for oleochemical feedstocks and derivatives across Europe and globally. Develops and implements regional and global sourcing strategies, identifies and mitigates supply chain risks, and negotiates with suppliers.

Cost Engineer will provide cost input for project evaluations, manage cost plans for development projects, and support procurement and property management. Requires a Registered/Chartered Quantity Surveyor or Cost Engineer with 10+ years of experience in industrial, logistics, or real estate projects.

Provides administrative support to two investment professionals involved in investment strategy and deal execution. Manages communication, calendars, meetings, and travel.

Senior Consultant (m/w/d) Freelance will lead and execute qualification and validation activities for equipment, utilities, facilities, computer systems, and processes within the life sciences industry. Ensures compliance with GxP standards and global regulatory requirements. Requires 3-5 years of experience in validation and qualification within the life sciences industry and a Bachelor's, Master's degree or PhD in a related field.

As a Senior Product Analyst, you will collaborate with Product Teams to derive actionable recommendations from data, design and analyze A/B tests, and improve data quality. You will have several years of experience in a product analytics environment, strong SQL and Python skills, and experience with A/B testing and user behavior analytics.

Senior technical expert in the Cyber Defense Center, supporting the Cybersecurity Incident Response Team (CIRT) in handling cybersecurity incidents. Responsibilities include executing incident response activities, providing technical guidance, collaborating with other teams, and documenting incident response activities. Requires several years of experience in cybersecurity incident response, strong technical knowledge, and the ability to communicate technical findings clearly.

This Service Manager role ensures professional field service delivery to Lectra and Gerber customers in Central & Eastern Europe. Responsibilities include field service dispatching, customer training, contract management, and team motivation.