java English-speaking jobs in Mainz

Principal Consultant to set up and govern Focused Build methodology, align delivery with SAP Activate and Agile principles, and manage requirements in Solution Manager.

Leads and structures the Internal Audit (IA) team, defining the IA charter, audit strategy, and methodology. Manages the global IA budget and oversees audits covering financial reporting, IT general controls, and MAR/disclosure controls. Ensures timely issue remediation and drives a culture of accountability and continuous improvement.

Lead and grow a high-performing engineering team (4-9 people) responsible for delivering a large-scale real estate platform. Contribute to architecture, prototypes, and code while ensuring predictable delivery and engineering quality. Manage risks, remove blockers, and drive roadmap and OKRs.

Senior Legal Counsel needed for a full-time, indefinite term position at Entrix. Responsibilities include drafting and negotiating commercial agreements, providing guidance on corporate governance and regulatory matters, and building legal processes. Must be a fully qualified lawyer in Germany with 6+ years of experience, ideally in energy or tech. Fluency in English and German is required.

Senior Quantity Surveyor to manage construction projects in Germany, focusing on industrial, data center, and office fit-out projects. Requires 5+ years' experience, fluency in German and English, and a degree in Quantity Surveying or related field.

Leads complex, cross-functional commercialization programs from feasibility through post-launch review. Manages project scope, timeline, risks, and resource allocation. Partners with bottler project teams and cross-functional leadership. Requires 5-8 years of experience in Technical Operations, R&D, or Supply Chain. Bachelor's degree required.

German Customer Service Specialist needed for international projects in Lisbon, Portugal. Provide support to German-speaking customers via phone, email, and chat. Must be native/fluent in German (C1-C2) and have good English skills (B1+).

Lead and manage the Data Science track, including curriculum development, team leadership, and operational oversight. Collaborate with Product, Teaching Quality, and other teams to ensure program excellence and sustainability. Manage a team of Coaches, Teaching Assistants, and Freelancers across multiple Data Science programs.

Ophthalmologists (m/f/d) are sought for positions throughout Germany. Responsibilities include general ophthalmological examinations and treatments, visual acuity tests, preventive medical check-ups, and screening tests. The environment offers modern outpatient treatment infrastructure, administrative relief, and opportunities for professional development.

Develops the "Digital Products" domain according to the Area Consulting CoE Products & Digital Solutions and Corporate IT Strategy. Acts as advisor, guiding business units through ideation, process optimization, and technology scouting. Ensures adherence to the Enterprise Architecture Management (EAM) framework within Liebherr-IT Services GmbH and the entire Liebherr Group.

Finance Specialist SAP - Financial Accounting will design and maintain SAP FI processes within the new S/4 HANA program. Responsibilities include acting as a subject matter expert, managing the full project life cycle, and collaborating with business partners.

This HR Administrator - Office Manager role combines HR administration and office management. Responsibilities include managing employee data, leave administration, fleet processes, onboarding/offboarding, and facilities operations. The ideal candidate has 3+ years of HR administration experience, proficiency in German and English, and strong organizational and communication skills.

Jitterbit seeks a driven Inside Sales Representative to cultivate new business opportunities and close deals within the DACH region. The ideal candidate will have a proven track record of B2B technology sales success and a passion for exceeding expectations.

Senior Design Manager to lead design processes for large-scale industrial and data center projects. Coordinate multidisciplinary teams, ensure design quality and compliance, and drive efficient project delivery.

Global Product Manager for software solutions in monitoring and automation systems. Defines product strategy, drives monetization, and ensures seamless hardware-software integration.

Freelance Project Manager needed for large-scale solar PV and BESS projects in Germany and Europe. Manage project delivery from construction to commissioning, coordinating workstreams, subcontractors, and documentation.

Talent Sourcer to support EMEA hiring for go-to-market and sales roles. Hybrid role with 3 days per week in Berlin office. Responsibilities include proactive sourcing, talent mapping, initial candidate engagement, and stakeholder collaboration. Requires experience in sourcing or recruiting, proficiency in LinkedIn Recruiter and ATS, strong search techniques, and excellent communication skills.

Global Benefits Analyst manages client portfolios, implements and monitors global brokerage mandates, and coordinates renewals of health and risk policies. Requires a Bachelor's degree, minimum two years' experience in insurance, and strong analytical and communication skills.

Senior QA Engineer needed for end-to-end (E2E) testing using Java-based frameworks (TestNG, JUnit) or Cypress. Design, develop, and maintain automated test scripts, focusing on data-driven risk reduction and performance testing. Collaborate with cross-functional teams to ensure thorough testing of features and functionalities.

Develop novel Hamiltonian-simulation algorithms for quantum computers. Translate physical models into Hamiltonian formulations and design algorithms across all layers of the quantum computing stack.