java English-speaking jobs in Wiesbaden

The Executive Assistant will provide administrative support to senior executives, manage calendars, coordinate meetings, handle confidential information, and prepare materials.

Senior System Engineer responsible for IT infrastructure operation, development, and optimization. Duties include system administration, network and security solutions, cloud solutions, monitoring, automation, storage clusters, backup strategies, containers, and databases. Requires several years of experience in system engineering, strong Windows Server or Linux administration skills, and knowledge of IT security tools, cloud web services, backup tools, scripting, and monitoring tools. Excellent German and English language skills are essential.

Drive revenue and shape sales strategy as a key member of a fast-growing start-up focused on decarbonizing the energy sector. You will execute sales strategies, manage outreach initiatives, and collaborate with management to achieve company growth.

Spare Parts Administrator (m/f/d) will prepare spare parts quotations, develop sales campaigns, obtain technical information, negotiate orders, process orders, and handle commercial aspects. Requires a successfully completed technical business administrator training, several years of experience, product knowledge in electrical products, and strong communication skills in German or Norwegian and English.

The German Cancer Research Center (DKFZ) seeks a creative and collaborative early-career researcher to establish an independent junior research group in translational gynecologic cancer research. The successful candidate will focus on early detection, diagnosis, therapy, or prevention of ovarian and/or endometrial cancer and other gynecologic malignancies. The position is intended for researchers in the "qualification phase" with a strong postdoctoral track record and a background in tumor biology and/or preclinical and translational cancer research.

The Max Delbrück Center for Molecular Medicine seeks a Head of Scientific Computing to lead a team of HPC systems engineers and research software engineers. The successful candidate will ensure state-of-the-art HPC infrastructure and user support for a diverse research community.

As a Visual Commercial, you will design displays, interpret trends, and bring collections to life in our BERSHKA store in Berlin. You will work with the team to implement visual standards and support commercial decisions.

Sales Engineer needed for a fast-growing HR tech company. 5+ years of pre-sales experience in B2B SaaS, ideally in HR tech. Proven ability to assess business needs and translate them into solutions. Fluency in German (C2 level) required. Responsibilities include preparing technical product demonstrations, advising customers on HR tech challenges, and working closely with sales teams.

Process Engineer needed for commissioning and operational test campaigns at a new battery recycling plant in Karlsruhe. Execute process campaigns, monitor performance, conduct test work, and analyze data. 2-5 years of experience as a Process or Metallurgical Engineer required. German language proficiency is essential.

Working student to support office management and event execution at VI Loft. Responsibilities include maintaining office organization, running errands, and assisting with event preparation and on-site support. Requires clear communication, organizational skills, German and English fluency, and flexibility.

M&A and Strategic Projects Manager needed for a fast-growing PE-backed IT-Consultancy. Drive buy & build strategy by identifying, analyzing, and implementing transactions. Manage M&A processes from start to finish, including post-merger integration.

Supports identification, assessment, and monitoring of cybersecurity risks through hands-on risk assessments and audits of Siemens IT systems, products, services, and software development centers. Prepares and executes cybersecurity audits, identifies security gaps, and translates technical findings into management information. Assesses cybersecurity governance, including policies and processes. Collaborates with security experts to improve solutions and address cybersecurity challenges. Requires a bachelor's degree in IT, Computer Science, or a related field, and experience in cybersecurity within Siemens or a related industry. Demonstrated affinity for learning about cybersecurity trends and good communication, presentation, and project management skills are essential. Fluent in English, with German or other languages being a plus. Flexibility to travel internationally and work remotely is required.

Working Student will support multi-disciplinary teams in designing, engineering, and building precision mechanical components. Must be a Bachelor of Science in Mechanical Engineering / Technology student with basic comprehension of mechanical design practices.

Leads architecture discussions for Core Platforms (CRM, Billing) to deliver business solutions for the Energy Retail Segment. Collaborates with stakeholders to translate requirements into technical designs and works with Enterprise Architecture to develop standards and best practices. Guides project teams throughout the design, development, and implementation phases. Ensures solutions align with business goals, compliance policies, and security standards.

As a Sales Account Executive for Voith Digital Solutions, you will drive new customer acquisition and expand relationships in the manufacturing and process industries. You will own the full sales cycle, develop territory plans, and position Voith's digital ecosystem as a value driver for customers.

Lead the development and optimization of search capabilities for a high-traffic eCommerce platform. Design and implement next-generation search solutions leveraging Elasticsearch and ML technologies. Drive search excellence by optimizing ranking and relevance using search algorithms, tracking data, and user behavior. Mentor a team of engineers, fostering growth and championing best practices.

Senior Project Manager to lead multi-modal, international heavy lift, breakbulk, and specialized cargo projects. Projects range from €5–10m in value, with exposure to €20m+ assignments and mega-projects exceeding €100m.

Shape and drive the global Human Capital (HC) system landscape for Advantest. Lead global Workday HC implementations, enhancements, and optimizations. Translate business requirements into functional Workday solutions and configurations. Serve as a Workday HC subject matter expert across all regions.

Develop modern, documented, efficient, and reusable web UIs with Angular. Provide solutions that work across browsers and devices.

Financial Analyst for a 4-year rotational program in Frankfurt. Develop expertise in client relationship management, investment management, and wealth management advisory. Requires a Master's or Bachelor's degree in Finance or Management, 3-5 years of experience, fluency in German and English, and strong communication and interpersonal skills.