java English-speaking jobs in Mainz

As an Inbound SDR, you'll qualify leads via phone and meetings, manage conversational channels, and collaborate with Account Executives. You'll contribute to playbook optimization and track KPIs.

Supports the development and implementation of the global compliance strategy for the Coatings division. Prepares materials for compliance meetings and briefings, coordinates governance activities, and designs and implements compliance processes. Maintains compliance tools and databases, coordinates information exchange within the global compliance community, and supports the worldwide training and awareness program.

Freelance Bookkeeper & Finance Coordinator needed to manage financial administration, optimize processes, and ensure accurate financial records. Experience in bookkeeping, finance administration, or accounting support required.

Health & Safety Advisors support the delivery of roofing, cladding, and façade projects across Germany, Denmark, Sweden, and Finland. Responsibilities include promoting a positive safety culture, ensuring compliance with regulations, conducting site inspections, and investigating incidents. Requires a Bachelor's degree in a related field, a recognized Health & Safety qualification, and 3+ years of experience in construction.

This part-time Office & Accounting Assistant role supports daily business operations, administration, and accounting activities in a dynamic international environment. The role combines office management, administrative coordination, bookkeeping support, financial administration, and internal process coordination.

Leads and develops the Modern Workplace team, implementing strategies for Workplace Services, Asset Management, Collaboration & Communication, and IT Business Products. Manages projects to introduce and improve workplace technologies, evaluates new tools, and collaborates with departments to develop IT solutions. Requires a degree in a relevant field, experience in IT workplace management, and strong communication and customer service skills.

Service Technician (m/f/d) Blades will ensure wind turbine reliability through on-site servicing and maintenance. Responsibilities include inspecting, repairing, and modifying rotor blades, applying laminating resins and composite materials, and documenting work digitally.

IT Test Manager needed for a 7-month contract in Frankfurt. Coordinate test execution across all phases, manage Feature Testing, and provide regular reporting on testing status. Requires 10+ years of experience in test management within complex IT environments, ideally in wealth management or financial services. Proficiency in JIRA and XRAY is essential.

Doctoral Researcher (Ph.D. Candidate) in digital platform ecosystems. The position is part-time (75% FTE) and fixed-term for three years. Applicants should have a master's degree in management, strategy, organization, entrepreneurship, or a related field.

Designs and develops integrated photonic systems and components. Collaborates with teams to define system requirements and specifications. Identifies and assesses project risks and develops countermeasures. Conducts simulations and modeling to optimize performance. Validates integrated photonic devices.

Manage the MultiVacc sales process, from lead generation to contract closure. Collaborate with sales teams, execute the pay-by-use model, and act as the primary customer contact.

As a Junior Technical Writer for Banking Solutions, you will create user-friendly documentation for complex banking software. You will collaborate with development, UX, and product management to deliver documentation and in-product guidance in English and other target languages.

As Business Controller for IT and R&D, you will partner with leadership teams, driving performance, enabling strategic decisions, and shaping the future of IT and R&D. You will own budgeting, forecasting, and long-term planning, prepare monthly closings and variance analysis, and develop recommendations to optimize business results. You will also support the development of IT and R&D strategy, assess business cases, and lead projects and initiatives.

International Development Instructor for 10-month program. Training in Denmark, followed by 6 months volunteering in Malawi, Zambia, or India. Must be 18+, English proficient, and able to obtain a Danish visa.

The Technical University of Munich (TUM) seeks a Professor in Mechanical Process Engineering with a focus on Circular Economy. Responsibilities include research, teaching, and mentoring early-career scientists. Candidates should have a strong research record, teaching experience, and substantial international research experience.

Leads technical excellence in PV and BESS acquisitions, ensuring quality standards are met. Guides a team, shapes methodologies, and acts as a trusted partner for investment and management.

The Institute of Biochemistry at Heinrich Heine University seeks a Doctoral Researcher to investigate the assembly and conformational dynamics of cellular machineries involved in transport across bacterial membranes.

Our clinics and institutes stand for high-quality patient care, excellent research, modern teaching and transfer of innovative technology. Göttingen as a city of science is located in the center of Germany and the University Medical Center Göttingen is integrated into an attractive network of university and non-university scientific institutions.

Global Head of Legal (International) for a premium outdoor lifestyle brand. Leads international legal framework, including franchise, wholesale, and distribution agreements. Oversees anti-counterfeiting, IP enforcement, GDPR compliance, and ESG obligations. Requires a fully qualified German lawyer with 10+ years of experience in leadership within premium retail, apparel, or consumer lifestyle. Fluency in German and English is essential.

Leads the Independent Aftermarket portfolio for the full Clarios product line, driving product strategy, lifecycle management, and market success across EMEA. Manages a team of five product specialists and analysts, collaborating cross-functionally to support launches and lifecycle activities. Reports strategy, results, and plans to C-level management.