java English-speaking jobs in Mainz

Lead PHP Software Engineer to design and deliver a resilient indexing pipeline and scalable search platform services. Responsibilities include optimizing SQL, managing Elasticsearch, and resolving complex data synchronization challenges. Requires 5+ years of PHP experience and strong backend skills.

Senior Finance and Consolidation Expert needed for an international client. Oversee monthly, quarterly, and annual consolidation, analyze financial results, and provide business insights. Requires fluent German and English, plus expertise in Group Consolidation and reporting.

Electrical Project Manager to own the electrical package for a major data centre project. Responsibilities include managing submittals, progress reporting, and coordinating construction through handover. EU passport holders only.

The Domain Architect creates and governs target-state architecture models for enterprise integration. This role guides business transformation, develops solution architectures, and ensures architectural standards are applied across key domains.

Station Agent provides outstanding passenger services and ensures seamless airport operations. Responsibilities include coordinating crew, handling agents, and managing flight documentation. Requires a degree or high school graduation, 1+ year in aviation/tourism, and English proficiency.

Principal Software Engineer to build secure, reliable AI capabilities. Own AI features end-to-end, designing and coding production software, including agentic systems. Requires 7+ years of experience and proficiency in Python and a product language.

Lead technical design development for an expanding European data center portfolio. Oversee masterplans, ensure design governance, and validate multidisciplinary outputs for cost-optimized, compliant infrastructure. Requires 10+ years in data center engineering.

Operations Lead to own and scale Customer Care, Warranty Management, and Partner Relations. Lead teams, resolve complex cases, and build scalable processes in a rapidly growing climate-tech business. Requires strong operational leadership and commercial judgment.

This senior leadership role leads global software engineering and R&D. The CTO shapes technology strategy, drives product-led development, and improves engineering quality and delivery across international teams.

VP Sales owns the entire sales function, leading a team of 13-15. Responsibilities include owning long-term sales strategy, driving Enterprise sales, and leading a low-touch motion for smaller accounts. Requires 10+ years in B2B SaaS sales leadership.

Provide technical support for Sigenergy products via remote channels and on-site visits for installation, commissioning, and troubleshooting. Requires a relevant degree and 3+ years in the PV solar and ESS industry.

Lead a team of Construction and Project Managers delivering complex, turnkey Data Centre projects. Requires Civil Engineering or related degree, experience in turnkey construction, and strong leadership. Fluent German and English are required.

Interim SAP S/4HANA Programme Director to lead a large-scale, multi-country transformation across Finance, Supply Chain, and Operations. Requires 15+ years' experience in global SAP S/4HANA implementations and fluent German.

Formulation Coordinator to support new product development and optimization of health and nutrition products. Responsibilities include formulation improvement, documentation, and regulatory compliance. Requires a degree in a related scientific field and fluency in German and English.

Experienced Project Manager needed to deliver fast-track fit-out and MEP projects across Ireland, Germany, and the Netherlands. Manage full delivery lifecycle, coordinate trades, and handle demanding, deadline-driven programs.

Expert in IFRS accounting and reporting, with a focus on IAS 12/income taxes, sought for Home Comfort Finance team. Responsibilities include ensuring high-quality, compliant, and timely group reporting, monitoring IFRS changes, and collaborating with internal and external stakeholders. Requires several years of relevant experience, strong knowledge of IFRS standards, and proficiency in SAP FI and MS Office.

Senior data partnerships leader to define and deliver data sourcing and partnership strategy. Negotiate licensing agreements, manage data partners, and work with product and engineering teams to integrate new data sources.

Manage end-to-end BESS projects across Europe, overseeing lifecycle stages from FAT to grid connection. Requires 3–5 years of project management experience, strong coordination skills, and fluency in English and German.

Drive software architecture for scalable, high-performance edge-to-cloud solutions processing medical data. Define guidelines for distributed edge environments, ensuring security and resilience. Provide technical leadership to development teams.

Senior Solution Architect PLM owns the architectural design and implementation of PLM solutions using Siemens Teamcenter. Requires 12+ years in PLM solution architecture, expertise in Teamcenter configuration, customization, and integration.