java English-speaking jobs in Mainz

Consultants and Senior Consultants support (re)insurance companies with digital transformation, process optimization, and system implementation. They analyze business models, design solutions, and collaborate with clients and project teams.

Internship (6 months) transitioning to a Master's thesis (max. 6 months) focusing on the development and characterization of novel electrochemical enzyme biosensors for medical devices.

Corporate Commodity Expert (f/m/d) drives technical and quality topics for Machined Parts across Siemens Energy. Develops commodity strategy, identifies suppliers, and implements technology roadmaps. Requires a Bachelor's or Master's degree in a relevant field and extensive experience in supplier quality management, manufacturing engineering, and supplier development.

Contribute to quantum computation by developing and implementing an optimization algorithm for optical applications at ZEISS Corporate Research.

Senior Clinical Researcher to design, evaluate, and analyze clinical investigation protocols for digital neuropsychological solutions. Collaborate with global teams, contribute to statistical analysis plans, and present research findings. Must have experience in CIPs, SAPs, data evaluation, and digital health. Fluent in German and English required.

Trader responsible for pricing and executing foreign exchange and money market products for corporate and institutional clients. Builds customer relationships, develops solutions, and markets trading products. Requires experience in foreign exchange and interest rate products, strong communication skills, and fluency in Chinese and English.

Experienced transfer pricing professional will manage transfer pricing matters for the Education segment, ensuring compliance and acting as a trusted advisor to stakeholders.

International Sales Representative will acquire new customers, establish international sales, and support existing customers. Responsibilities include market observation, promotion initiatives, sales negotiations, and trade fair participation. Requires a commercial background, strong customer focus, negotiation skills, and experience in the medical technology industry. Fluency in German and English is essential.

Leads end-to-end Finance Operations and controllership across EMEA, ensuring timely and accurate financial reporting and a strong control environment. Drives large-scale Finance transformation initiatives, including process harmonization, automation, and AI implementation. Governs performance of GBS/Shared Services and leads international finance teams.

Communicate product value to customers, deliver presentations, and support Proof of Concept processes. Provide technical training and resolve customer inquiries. Build relationships with clients and partners.

Regional Sales Manager (m/w/d) for Semiconductors will build and develop business relationships, drive sales growth, and implement supplier strategies. Requires 7+ years of team leadership experience in electronics components sales, in-depth industry knowledge, and fluency in English and German.

Senior oversight of counterparty credit risk (CCR) within a regulated broker-dealer legal entity. Provides senior-level approval and oversight of complex counterparty credit risk transactions. Drives strong CCR governance across the legal entity, including risk identification, challenge, escalation, and oversight of control effectiveness. Manages and monitors a diverse portfolio of counterparty exposures. Represents risk management in regulatory engagement, supervisory reviews, and internal/external audit interactions. Partners closely with Institutional Credit Management (ICM), Markets, Banking, and global CCR teams. Extensive experience in counterparty credit risk or credit risk within a global financial institution required. Strong understanding of CCR governance frameworks, including legal entity oversight, regulatory expectations, and audit/control environments. Proven experience engaging with regulatory frameworks such as MaRisk, KWG, and CRR. Demonstrated ability to operate at a senior approval authority level, exercising independent credit judgment on complex and time-sensitive transactions. Experience working within a regulated legal entity environment, including governance forums, regulatory engagement, and audit interactions. Experience operating at or near Senior Credit Officer (SCO) level, or a clear trajectory toward such responsibility. Strong stakeholder management skills, with the ability to influence across Markets, Banking, Institutional Credit Management (

Working student or intern to support Technology, AI & Outsourcing legal practice and Corporate & Regulatory / Global Office legal team in Munich. Assist with contract review and drafting, legal process optimization, AI and technology projects, legal research, and corporate governance activities.

Mechanical Turnover Engineer needed for a large-scale pharmaceutical construction project near Frankfurt. Manage full turnover of complex mechanical systems, ensuring compliance with GMP, project specifications, and regulatory requirements. Prepare comprehensive Turnover Dossiers and lead system walkdowns. Coordinate with contractors, vendors, and CQV teams to ensure timely completion and seamless handover.

Project Technician / Engineer - Substation Automation (m/f/d) will develop applications, integrate systems, and commission secondary technology in substation automation projects.

Lead multiple software development teams, fostering innovation and collaboration. Establish AI-native engineering practices, leveraging Claude Code and similar tools, to drive productivity gains. Ensure adherence to quality, security, and regulatory standards. Synchronize product requirements with business objectives and communicate progress to executive management.

The Sales Development Representative (m/f/d) will drive Arctic Wolf's growth in the Nordic region. Responsibilities include prospecting, qualifying leads, and partnering with senior sales executives. Fluency in English and at least one Nordic language (Danish, Norwegian, Finnish, or Swedish) is required.

GenAM seeks a technically strong OCIO & ALM professional to support the build-out of its OCIO and corporate pension business in Germany and Austria. Responsibilities include OCIO & fiduciary mandate management, ALM advisory & modeling, regulatory & structural expertise, and corporate pension platform development.

Medical Scientific Liaison for Rare Diseases / Liver will build relationships with medical and scientific experts, provide scientific education, and support clinical development. Requires an advanced scientific degree, previous MSL experience, and expertise in Rare Diseases / Liver. Fluency in German and English is required.

Develop and execute go-to-market strategies for AI-powered product offerings. Define product positioning, messaging, and buyer personas. Create sales enablement assets and own website optimization. Build and scale digital content and campaigns across channels.