trainee traineeships English-speaking jobs in Mainz

Our team delivers high-impact digital solutions for leading enterprises across diverse industries. As a Cloud Engineer, you'll play a pivotal role in designing, optimizing, and automating modern infrastructure to support high-performance, scalable, and secure systems.

About the role We are seeking a hands-on Portfolio Manager to help build and run the investment function of an early-stage family office. This is a broad, end-to-end role for someone who enjoys combining quantitative rigour with practical execution, and who is motivated by shaping processes, frameworks, and strategy from the ground up.

For one of our clients in the field of Biopharma in Stuttgart we are looking for a Head of Data Science Solutions (m/w/d). This is a 100% remote role and can be performed from anywhere within the EU, Switzerland and Great Britain.

As a Developer & Solution Analyst at CACEIS you are part of the IT Centre of Excellence Pension Funds team, working alongside 18 skilled professionals. You will be at the heart of our IT landscape, translating business needs into smart, effective solutions.

Then we are looking for you to join us as a Software Engineer - Java (m/f/d) in our Machine Infrastructure team at Munich. Our cross-functional team develops the cloud infrastructure which manages our device fleet.

Job Description With our technology-based strategies, we lead companies into a new age and take care of everything that has to do with digitalization. With your clever ideas you will bring major international projects to the forefront and show all your skills in implementing cloud-based human resources solutions.

Location: Frankfurt region, Germany Sector: Mission-Critical / Data Centres Type: Full-time | Permanent Start Date: Q1 2026 A leading international contractor is seeking a Site Manager to oversee the full lifecycle of a data centre project in Germany, from groundworks through to steel frame erection and final handover.

Our Purpose Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we’re helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible.

About the Voith Group The Voith Group is a global technology company. With its broad portfolio of systems, products, services and digital applications, Voith sets standards in the markets of energy, paper, raw materials and transport & automotive. Founded in 1867, the company today has around 22,000 employees, sales of € 5.

# HR Business Partner Personnel Development (m/f/x)##### Nordenham, GermanyThe gross annual salary is between €64,000 and a maximum of €67,500, depending on qualifications. If you have already applied to ARTS, we look forward to working with you to find other suitable positions – **multiple applications are therefore not necessary. ****You develop people so that companies can grow.

Are you passionate about Atlassian tools and eager to shape the future of digital collaboration across a global organization? As a System Administrator with a focus on Jira, you'll take ownership of our Atlassian Jira environment. Ensuring stability, scalability, and the continuous improvement of digital workflows across the EOS Group.

Area Sales Manager Germany Sealing Technology – Technetics Group With over 100 years of experience, Technetics Group is a leading provider of innovative sealing solutions for demanding applications. Customers from the aerospace, energy, and pharmaceutical/medical technology industries rely on its high-quality and reliable products.

Why to Join Caiz Innovative & Purpose-Driven: At Caiz, we combine advanced blockchain technology with the principles of Islamic finance to create an innovative and modern financial system. Ethical Impact: Our organization prioritizes ethics and integrity in all operations, ensuring every solution aligns with fairness, transparency, and respect.

Technical Sales Director Overview: Rezolve AI is at the forefront of AI-powered commerce, delivering its proprietary BrainSuite (incl. Brain Commerce, Brain Checkout, and brainpowa LLM) to major retailers, brands and payments / commerce partners worldwide.

About the role Join Apaleo and Shape the Future of Hospitality Tech! Apaleo is the world’s most open API-first property management platform powering the next generation of hospitality operations.

com/) is one of the world's leading tyre development and manufacturing companies with a mission to bring the best customer experience with our cutting-edge technology and high commitment to quality. Sailun, being one of the fastest globally growing tyre companies, has been progressing upward steadily every year in the global industry ranking.

The company works closely with its customers to continuously improve its offering and has established a strong reputation for quality, innovation, and reliability. To shape the next chapter in global Marketing & Product Management, we are looking for an inspiring and decisive leader.

NET Developer We're looking for an experienced developer to join a product team responsible for a major digital platform used by large business customers in the energy sector. What You'll Be Doing Building and enhancing features for a large-scale enterprise customer portal. Working with cross-functional agile teams to create user-focused digital solutions.

Whether you're just starting out, a seasoned expert, or already leading teams - we're by your side throughout your entire career journey. We offer exciting job opportunities across Germany, with a strong focus on the mobility, tech, and energy sectors. Our goal? To find the perfect match for you. From junior to director, we've got roles to suit every ambition.

About UsThe development of novel, effective and safe therapies for the treatment of cancer is one of the main challenges for modern medicine. We want to drive this process forward. The main goal of Tubulis is to become a leading company in the field of targeted therapeutics and antibody-drug conjugates (ADCs).