java English-speaking jobs in Mainz

Sales Advisor provides stylish and individual customer service in a premium/luxury leather goods boutique. Responsibilities include product presentation, sales, cash register operation, and store maintenance. Requires at least one year of retail experience, ideally in the premium or luxury segment, fluency in German and English, and a passion for sales and customer satisfaction.

Nexi seeks an ISV Partner Account Manager to identify and acquire new Software Vendor partners. This role involves building compelling business cases, leading negotiations, and driving commercial and technical partnership success.

CEO Office Intern to support strategic planning, investor relations, and cross-functional projects. Assist with fundraising, board communications, and market expansion analysis. Requires a Bachelor's or Master's degree in a relevant field and prior experience in demanding environments.

Enterprise Partnerships Business Development Manager will focus on securing inventory through strategic partnerships with leasing providers, OEMs, and retail groups in the DACH region. Responsibilities include managing existing partnerships, developing new relationships, leading negotiations, and using data to drive inventory growth. Requires 5+ years of experience in business development, enterprise sales, or strategic buying with fluency in English and German.

Payroll Specialist needed for full-time role in Hamburg. Manage monthly payroll for 250 employees across two locations, ensuring compliance with legal and regulatory requirements.

Senior Engineer and Process Manager to design and start up processes for rare-earth elements (REEs) and Nd magnetics. This role involves leading engineering, implementation, and optimization of a NdFeB sintered magnetic Greenfield plant.

Quantitative Risk Analyst needed for Group Credit Risk Management team. Develop and improve tools to quantify credit risk, analyze results, and propose measures. Support projects related to credit risk quantification, data infrastructure, and quality.

Associate to join the Debt Structuring & Portfolio Management team, focusing on infrastructure and private debt. Support deal structuring, manage existing investments, and prepare investor reports. Requires a degree in a relevant field and at least three years of experience in infrastructure debt/project finance/structure finance. Strong German and English language skills are essential.

Strategic Supplier Manager - Contract Manufacturer HLA will govern supplier relationships, define strategies, lead contract negotiations, and drive value creation. Requires a degree in a related field and 5+ years of experience in supplier management, sourcing, or procurement.

Develop and deploy generative and agentic AI solutions, including text generation, semantic similarity, and classification, within a SaaS platform. Integrate LLMs, optimize performance, and collaborate with engineers and sustainability experts.

The Professorship of Empirical Economics & Data Science at TUM School of Management invites applications for 3 PhD positions. Research focuses on econometrics, innovation policy, technology management, and causal data science. Applicants should have a Master's degree in a relevant field, strong quantitative skills, and experience with large datasets.

As an App CRM Manager, you will design and execute push notification and in-app communication strategies for the Redcare App. You will act as the technical and strategic expert for the app CRM tool, enabling marketing teams to run campaigns and providing technical support for complex use cases. You will work closely with Product, Engineering, and Marketing teams to build a scalable and data-driven mobile CRM setup.

Medical Science Liaison (MSL) for Dermatology (Inflammation & Autoimmunity) will lead scientific exchange with dermatologists, support clinical research, and contribute to medical strategy.

Senior Quantity Surveyor to support data centre delivery in Germany. Manage budgets, prepare cost estimates, administer contracts, and conduct site inspections.

Senior technical expert in the Cyber Defense Center, supporting the Cybersecurity Incident Response Team (CIRT) in handling cybersecurity incidents. Responsibilities include executing incident response activities, providing technical guidance, collaborating with other teams, and documenting incident response activities. Requires several years of experience in cybersecurity incident response, strong technical knowledge, and the ability to communicate technical findings clearly.

Analyzes sales data, KPIs, and inventory to create reports and drive data-driven decisions. Investigates returns, develops discount strategies, and forecasts new collection quantities. Requires 3+ years experience in sales analytics, inventory management, or demand planning. Strong analytical and communication skills in German and English are essential.

Develop and nurture business relationships in the Nordics to generate new business opportunities. Perform outbound calls and other communication methods to prospect. Identify key decision-makers and buying timelines.

Lead trainer and curriculum developer for the Augmented Psychotherapy Training (APT) program, shaping the future of psychedelic therapy training. Collaborate with multiprofessional teams to deliver high-quality education and refine program content. Ensure curriculum reflects the latest scientific evidence and integrates key competencies for psychedelic treatment. Supervise and grow the APT team, fostering a culture of professional development.

Intern/Trainee HR Recruiter/Admin to support the recruitment process, from job descriptions to candidate hiring. Assist with interviews, employee support, contract drafting, and reporting. Requires fluency in English and strong communication and organizational skills.

Senior Programme Manager leads large, simultaneous client implementations in the DACH region, defining project scope, managing resources, and ensuring on-time, quality delivery.