java English-speaking jobs in Mainz

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  • 360 FIL Fondsbank Germany
  • Kronberg
  • June 12
LogoUX/UI Designer will translate complex retirement product requirements into user-centered experiences. Responsibilities include designing web and mobile applications, conducting user research, creating wireframes and prototypes, and collaborating with developers.
  • Undisclosed
  • Berlin
  • June 12
Senior Backend Engineer to build and scale robust backend services for an AI recruitment platform using Go and distributed systems.
  • Futury
  • frankfurt
  • June 12
Futury connects aspiring founders with early-stage startups seeking co-founders in business development, sales, marketing, finance, operations, or strategy.
  • Hays
  • Erlangen
  • June 12
LogoMechanical Engineer to contribute to power plant projects, including decarbonized and hybrid solutions. Responsibilities include analyzing contracts, preparing specifications, coordinating interfaces, and managing contractors. Requires a degree in Mechanical Engineering, experience in power generation or EPC projects, and proficiency in 2D/3D design tools.
  • IU Internationale Hochschule GmbH
  • Köln
  • June 12
IU International University seeks a professor (m/f/d) for Cyber Security, starting October 1st, 2026. Responsibilities include teaching, developing lectures, and supervising students. Applicants must have a doctoral degree in Cyber Security or a related field, at least five years of work experience, including three years outside of academia, and publications or projects demonstrating expertise.
  • Appinio
  • berlin
  • June 12
Global Payroll Operations Partner will drive the preparatory payroll process for international entities, manage external payroll providers, and support employee payroll inquiries.
  • Joss Search
  • Germany Trade & Invest Gesellschaft für Außenwirtschaft
  • June 12
Provides administrative and office management support to a founder of a venture capital firm. Manages calendars, travel, meetings, and communication. Oversees office operations, vendor management, and team onboarding.
  • jobvalley
  • Nagold
  • June 12
Support loading and unloading trailers and swap bodies in a shift operation. Tasks include unloading trucks, lifting packages onto a conveyor belt, and ensuring professional loading in compliance with quality specifications.
  • Google
  • Berlin
  • June 12
Pursuit Lead for Google Cloud Consulting will define and execute service strategies for a customer portfolio, translating business needs into service roadmaps and managing the entire services lifecycle. Requires 10+ years of experience in customer-facing roles within the cloud or enterprise technology domain and fluency in English and German.
  • Polaris Raumflugzeuge GmbH
  • Bremen
  • June 12
LogoDesign and optimize structures for a two-stage supersonic/hypersonic aircraft. Conduct static and dynamic load analysis, stability analysis, and support system tests.
  • Vulcan Energie Ressourcen GmbH
  • Karlsruhe
  • June 12
LogoVercana GmbH seeks a Drilling & Well QAQC Supervisor to coordinate QAQC activities across drilling, completion, and intervention operations. The role involves ensuring Service Quality Plans are implemented, conducting service inspections, and managing the D&W QAQC release process.
  • rexx systems GmbH
  • Regensburg
  • June 12
The Chief of Staff / PMI & Transition Officer will serve as a strategic advisor and operational leader, driving key initiatives and ensuring cross-functional alignment. Responsibilities include strategic planning, operational guidance, cross-functional coordination, post-merger integration, and transition management. The ideal candidate has experience in the renewable energy sector, financial planning, project management, and change management.
  • Amazon TA
  • Berlin
  • June 12
Senior Systems Engineer to contribute to the smooth operation of the ESC, working with global AWS teams and influencing AWS services. Requires fluency in English, experience with Python, Perl, or other scripting languages, and expertise in Linux and networking. Experience with CI/CD pipelines, DevOps practices, and Generative AI technologies is also required.
  • Naya Jobs
  • Seeburg
  • June 12
LogoExperienced MIG/MAG Welders needed for manufacturing companies in Germany. Perform welding and fabrication of metal components, read technical specifications, and ensure quality workmanship.
  • Quantum- Systems GmbH
  • Munich
  • June 12
LogoPrototype Engineer to lead early-stage battery and power system development. Responsibilities include fabricating prototypes, executing design modifications, and supporting scaling to small series. Requires hands-on prototyping expertise, CAD proficiency, and strong battery fundamentals.
  • CS Group
  • Manching
  • June 12
LogoDesign engineer for composite/hybrid aircraft structures. Requires Bachelor's degree in aerospace engineering, 3+ years experience, and CAD proficiency (CATIA V5, DDMS 3D Experience, VPM). Fluency in English is mandatory.
  • KoRo Handels GmbH
  • Berlin
  • June 12
LogoWorking Student supports the day-to-day operations of KoRo's Italian Retail business. Tasks include order processing, sample shipments, stock monitoring, and collaborating with internal and external teams. Must be fluent in Italian and English, enrolled in a Berlin-based university, and available to work as a Working Student.
  • Discover International
  • North Rhine-Westphalia
  • June 12
MSAT Scientist to support technology transfer, process validation, manufacturing support, and continuous improvement in a pharmaceutical manufacturing environment.
  • Technische Universität Dortmund
  • Dortmund
  • June 12
The Department of Chemistry and Chemical Biology at TU Dortmund University seeks a tenure-track professor in Optochemical Biology. The successful candidate will conduct research and teaching in chemical biology, bioorganic chemistry, or synthetic biology, with a focus on light-responsive molecular functionalities.
  • SAP
  • Sankt Ingbert
  • June 12
LogoSupports the translation of learning materials, working across teams in an agile environment. Assists with content management and machine translation systems.