java English-speaking jobs in Mainz

We seek a high-level Web Designer to create premium, luxury-standard websites. Design high-end, visually refined websites with a luxury feel, ensuring a complete, polished digital experience.

Customer Service Intern will respond to customer inquiries via phone, email, and live chat. Provide information about products and services, resolve customer complaints, and collaborate with team members. Must have very good knowledge of German, English, and Turkish, strong communication skills, and excellent online/offline marketing skills.

Support product selection, analyze category performance, and utilize AI-driven analytics to optimize assortment strategies. Collaborate with Category Managers to build a best-in-class assortment in Home & Living categories.

Senior Business Development Manager will drive commercial performance of consumer financing and private leasing. Responsibilities include designing and optimizing financial products, leading process implementation, and collaborating with cross-functional teams to launch new customer solutions. Requires 3+ years of experience in car credit and/or private leasing, strong analytical skills, and proficiency in Excel and English.

Intern to support the Infrastructure Fund & Co-Investments team in Munich. Responsibilities include due diligence, financial modeling, fund screening, asset management, and ad-hoc projects. Requires a finance or accounting student with strong analytical skills, attention to detail, and experience with Excel and PowerPoint.

Execute complex threat intelligence engagements and projects independently. Manage stakeholder relationships and deliver high-quality threat intelligence services. Support junior team members and contribute to the professional growth of the Threat Intelligence team. Produce threat landscape reports, capability maturity assessments, and threat actor analysis. Provide threat intelligence support during incident response engagements. Maintain current knowledge of threat landscapes and support cross-functional collaboration.

LANXESS seeks a driven Account Manager to manage and grow the industrial lubricants business, focusing on the ANDEROL® product portfolio. The role involves distributor management, OEM collaboration, and technical/commercial solution selling.

Strategic European Brand Manager to lead the PPE portfolio, shaping strategy, driving growth, and leading market assessments. Develops marketing campaigns, manages product lifecycle, and collaborates with stakeholders across Europe. Requires 8+ years of experience in medical devices, marketing, or commercial roles with a proven track record of success in multiple European markets.

As a Service Manager, you will be the central contact person and project manager for service support (incident and problem management) for global air traffic control and airport customers. You will ensure timely analysis and rectification of faults in customer systems and advise customers on technical matters.

The Friedrich Schiller University Jena seeks a Group Leader for Electron Microscopy to lead a core facility, conduct research, supervise staff, and secure funding.

BWI Group seeks a Sales Support Engineer to support new business with German OEMs. The role involves representing BWI engineering at OEM technical centers, understanding customer needs, presenting technical solutions, and participating in design activities.

Supports Digital Content Operations managers on DHL.com projects, including content management, deployment, and technical developments. Executes content changes on DHL websites and country sites according to defined processes. Builds and maintains content for all DHL English and language sites. Ensures compliance with global standards and guidelines.

Leads group for clinical trials and development programs in functional gastrointestinal and gastrointestinal motility disorders. Responsible for clinical development strategy and scientific integrity of trials. Collaborates with cross-functional teams and stakeholders.

As a Founder's Associate, you will lead strategic growth projects, design sales operations, and act as a sparring partner for founders. You will analyze market data, bridge cross-functional teams, and drive mika's expansion in the German SME market.

Customer service representative needed for full-time position. Processes customer emails, provides telephone and written communication, offers expert advice, and solves customer problems. Requires good German and Bulgarian language skills and proficiency in Microsoft Office.

Lead the development and growth of the Captive Reinsurance strategy across EMEA. Build relationships within the Captive community and drive business growth. Collaborate with teams to ensure seamless placement and handling of Captive business. Identify and secure new opportunities. Shape and grow a high-performing team.

Manage outsourced payroll for France, ensuring accuracy, compliance, and timely payments. Requires 4+ years of experience in multinational payroll, French native fluency, and proficiency in relevant software.

PhD position in machine learning and computer simulations for materials and process design. Develop novel machine learning models to enhance or replace computational engineering methods.

Founding Engineer to join a small team building a European cloud platform on bare metal hardware. Design, operate, and improve the full stack: compute, Kubernetes, storage, and networking. Write Go and Rust code, mentor a junior engineer, and own production infrastructure.

The Director Digital Cement Operations will lead Heidelberg Materials' digital cement strategy, translating operational priorities into scalable solutions and ensuring measurable value creation. The role bridges Digital and the Competence Center Cement, driving the global rollout of digital solutions and overseeing product portfolio decisions.