java English-speaking jobs in Mainz

Senior Sales Manager for 25hours Hotels. Develop creative sales strategies for Corporate & MICE segments, build customer relationships, and increase business volume. Requires professional sales experience and fluency in German and English.

Business Development Director for Information Solutions Aftermarket. Responsible for global Business Development and Services strategy, driving profitable growth through portfolio expansion and operational excellence. Requires 10+ years in relevant fields.

Drive growth for Veeva's R&D, Quality, and Vault Cloud solutions in Life Sciences. Manage key stakeholder relationships, generate pipeline, and win new business. Requires 5+ years in sales/consulting with 2+ in life sciences. English and German required.

Enthusiastic Brand Promotor needed for a Skins activation in Wiesbaden. You will engage visitors, represent the brand, and create a positive atmosphere. Must be confident, social, and over 1.65m tall.

TUI BLUE seeks a Barkeeper (m/w/d) for a full-time role within its global flagship hotel brand. This position is part of the TUI Group, a leading tourism group.

Gas Engine Expert needed for an international industrial company. Responsibilities include defining performance requirements, optimizing engine components, and supporting field service teams. Requires a relevant degree and three years of gas engine manufacturing experience.

Lead and scale product and segment marketing for NetDocuments across all key customer segments, including law firms and corporate legal departments. Direct GTM strategy, messaging, and sales enablement. Requires 7+ years in B2B SaaS marketing.

Senior Service Engineer provides on-site maintenance, repairs, and remote support for advanced microscopy systems. Requires technical training, relevant experience, strong problem-solving skills, and proficiency in IT.

Seat Structures Engineer responsible for certification activities for aircraft seating products. Duties include FE calculations, structural substantiation, and serving as a Boeing representative for engineering and certification topics. Requires a relevant Bachelor's degree and 5+ years of aerospace experience.

Lead the global commercial service strategy and execution for the Service department. This role involves leading Service Sales and Service Product Management to shape service offerings and drive sustainable revenue growth.

Analyze and plan Army exercises and training to boost readiness. This role involves developing plans, supporting training evaluations, and contributing to posture and crisis planning for the Army and partners. Requires 6+ years in military operations or planning.

Experienced Civil Engineer needed for HV transmission projects, focusing on onshore construction of substations and cable installation. Responsibilities include defining requirements, site evaluation, and managing technical implementation.

Apprenticeship as a Mechatronics Technician. Training includes CNC technology (milling and turning), electrical specialist training, and learning pneumatic/electro-pneumatic control systems. Supports building optical machines. Requires manual dexterity and technical understanding.

Senior Application Engineer supports customers through design, analysis, integration, and validation of Maxwell energy storage solutions. This role bridges product development, engineering, and commercial teams. Requires 5+ years of relevant engineering experience.

Senior Manager Product Marketing owns the SDV strategy and defines next-generation microcontrollers for the automotive business. This role captures market requirements, owns pricing strategy, and leads go-to-market activities.

This 6-month internship involves analyzing 3D bone models and medical imaging data to support orthopaedic medical device development. Candidates should be pursuing a relevant Master's degree and have knowledge of anatomical data analysis.

Lead the Demo Workshop team in Nussloch, managing service technicians and coordinators for equipment inspection and repair. Drive customer and service excellence by owning the end-to-end demo process and improving workshop operations.

Manage master data quality and lifecycle across systems to support reliable commercial execution. This role involves executing data maintenance, monitoring quality, and clarifying data usage for customer, contact, and pricing data.

Develop and manage key accounts across refineries, green steel, utilities, EPC, and industrial hydrogen sectors. Drive business development and strategic partnerships to advance PEM electrolysis. Requires relevant degree and sales experience.

Senior Director, DACH, leads CoreWeave's commercial strategy across Germany and the DACH region. This role owns regional strategy, revenue, and builds the sales organization to scale AI cloud adoption.