java English-speaking jobs in Mainz

DevOps Expert needed for 6-month project with potential extension. Responsibilities include analyzing and managing CI/CD structures, migrating software repositories from Git/Gerrit to GitLab, and creating technical documentation. Requires experience with Jenkins, Python, GitLab, Terraform or openTofu, and build/deployment pipelines.

Expansion Manager to secure locations for EV charging stations across Germany. Manage the full process from search to agreement signing. Native German and Fluent English required. 3 years of relevant experience, ideally in commercial real estate.

IU International University seeks a Business Administration professor (m/f/d) for its Berlin campus, starting October 1st, 2026. The position is limited to 2 years and is full-time or part-time. Responsibilities include teaching, developing teaching formats, and supervising students. Applicants must have a doctoral degree in Business Administration or a related field, at least five years of professional experience (including three years outside academia), and English language skills at C1 level.

Support day-to-day accounting and finance operations. Help identify and implement automation across finance processes. Contribute to improving workflows and AI tooling.

Leapsome seeks a Head of Growth & Lifecycle to lead the strategy and execution of our global demand engine. This role is responsible for Sales Accepted Opportunities (SAOs), qualified pipeline, and customer expansion revenue. The ideal candidate will architect an AI-augmented growth engine, own the revenue and pipeline mandate, and design market-focused go-to-market strategies.

Develops and executes clinical training programs for CT products, resolves customer clinical issues, and provides comprehensive product training. Collaborates with marketing and sales teams, supports industry events, and gathers market data. Requires a bachelor's degree in medical imaging sciences or a related field and 3+ years of experience as a CT clinical application specialist. Must be proficient in English and willing to travel extensively.

Senior HR Manager (m/f/d) will lead HR strategy and processes for DACH, UK & Nordics ( ~ 220 employees). Responsibilities include managing recruitment, performance management, employee relations, and ensuring compliance with labor law. Requires 7-10 years of experience in international corporate environments, minimum 5 years in a similar HR role, and strong knowledge of German labor law.

As a Front Desk Associate, you'll be the welcoming face of Mindspace, ensuring smooth daily operations and providing excellent member support. You'll handle front desk duties, assist Community Managers, and contribute to a positive and thriving workspace environment.

Lead continuous improvement initiatives at a pharmaceutical manufacturing site in Regensburg, Germany. Develop and execute a long-term improvement plan, focusing on process streamlining and waste elimination.

As an ECON Principal, you will lead and manage E.ON's most important Group projects, developing strategic and operational solutions for the energy sector. You will work closely with the ECON management team, customers, and international teams, driving business growth and fostering team development.

Provide ongoing nutritional follow-up to pet owners through digital platforms. Deliver personalized recommendations and build trusted relationships. Support pet owners with nutritional guidance and engage with online communities.

An Architect / Senior Architect is sought to lead architectural design activities for industrial and commercial projects. The role involves developing concepts, designs, and construction plans, coordinating with subcontractors, and ensuring design quality throughout project delivery.

As a Communicator and Community Manager in the Identity & Access Management (IAM) team, you will create content, organize events, and engage with internal communities. You will support the production of tutorial videos and leverage AI tools for content creation.

Develop and operate photoelectron spectroscopy setups, including ARPES and PEEM. Support users in sample preparation and characterization techniques like SEM, FIB, optical microscopy, and other lab-based methods. Collaborate on scientific projects and participate in shift work.

Associate Client Legal Administrator supports international clients with legal, administrative, tax, and financial tasks. Responsibilities include analyzing documents, ensuring compliance, handling corporate filings, and managing customer relationships. Requires two years of experience, knowledge of German corporate law, and fluency in German and English.

Senior Program Lead Teaching will design, lead, and coordinate learning formats for computer science and interdisciplinary students. The role involves translating the d-school's conceptual framework into durable, teachable formats and building a team over time.

The Faculty of Forest Sciences and Forest Ecology at the University of Göttingen seeks an internationally experienced researcher to prepare and submit a funding proposal for an ERC grant or the Emmy Noether programme. The three-year, fully funded position offers flexibility to work on the proposal and integrate into a collaborative research environment. Applicants must have a PhD in a relevant field and be eligible to apply for an ERC Starting Grant or the Emmy Noether Programme within two years.

Project Manager for building automation deployments in Germany. Manages on-site projects, coordinates timelines, and acts as a liaison between customers, contractors, and the engineering team. Requires fluency in German and English, 2+ years of project management experience, and a solid understanding of building controls systems.

Drives end-to-end acquisition process for a fast-growing European vehicle services platform in Germany and the Netherlands.

Medical Directors provide medical, scientific, and strategic leadership for clinical trials. Responsibilities include study design, protocol development, safety management, and contributing to study reports and regulatory documents. Must have an M.D. degree, prior clinical trial research experience, and may require board certification and licensure.