java English-speaking jobs in Mainz

As a working student, you will support the implementation of automations in software and cybersecurity, contribute to security reference architectures, and draft technical documentation. You will gain insights into security trends and support the analysis of new technologies. You are an enrolled student in a relevant degree program with practical experience in at least one programming language. You have a passion for IT security and are eager to learn.

As a Platform Engineer, you will operate and maintain on-prem Kubernetes clusters, optimize monitoring infrastructure, and manage storage solutions. You will also develop and automate the VM platform, ensuring high performance and stability.

This role supports D2C operations for Fanatec, ensuring accurate product information, pricing, and inventory across web platforms. Responsibilities include managing pricing uploads, monitoring order fulfillment, and collaborating with teams to resolve operational issues.

This paid internship provides hands-on experience in customer service operations within the Customer Service - Institutional Support division of Springer Nature. The intern will support libraries with licensed access to Springer Nature content, contribute to continuous improvement projects, and analyze customer service data.

Experienced Chief Operating Officer needed for a high-growth Fintech company. Responsibilities include shaping business operations, ensuring client satisfaction, and managing IT units. Requires deep understanding of financial technology, software development, and risk mitigation.

SAP BASIS Administrator needed for operational and maintenance activities across Ingersoll Rand's global SAP systems. Responsibilities include system setup, upgrades, troubleshooting, performance tuning, and disaster recovery. Requires 7-9 years of experience with major SAP systems (ECC, EWM, S/4HANA, GRC, SolMan, MII, ADS, Web Dispatcher, CPI/Cloud Connector) and various infrastructure platforms. Strong communication and collaboration skills are essential.

As a Working Student in Quality Management – Operations, you will support the publication of brochures and products, ensure their quality, and handle technical issues. You will analyze data, identify irregularities, and collaborate with the team to improve processes.

Designs, implements, and maintains METRO AG's IT and Network infrastructure with a focus on security. Collaborates with cross-functional teams to optimize system performance, enhance security measures, and implement best practices.

As a Junior IT Buyer, you will manage procurement requests for SaaS purchases and renewals, ensuring client satisfaction and optimized software landscapes. You will collaborate with clients, vendors, and internal teams to negotiate pricing, contracts, and renewals.

Lead and scale a high-performing engineering organization, build a predictable delivery system, and own technical strategy and architecture for a scalable B2B SaaS platform.

Business Development Intern for the US market. Work in a team to present, promote, and sell products/services to existing and prospective customers. Must complete a 3-6 month mandatory internship, have native fluency in English, and be available full-time.

Verify and integrate avionics systems at bench and aircraft level. Develop test scenarios, scripts, and analyze system behavior. Collaborate with engineers and test centers.

Senior Data Analyst to perform exploratory data analysis, build ETL pipelines, and ensure data quality. Requires experience with Databricks, PySpark, Python, and SQL.

As a Staff Software Security Engineer, you will ensure application security throughout the software development lifecycle. You will embed security practices, conduct threat modeling, and lead secure code reviews. You will develop the application security program, conduct risk assessments, and provide security training and mentorship to developers.

Senior Full Stack Developer to build and evolve customer-facing software for AI-powered poultry solutions. Responsibilities include designing and implementing features, owning the full stack, and collaborating with hardware/automation and operations teams. Requires +3 years experience building web applications, strong frontend (Angular preferred) and backend (Python) skills, and AWS experience.

Scrum Master for a digital product team, guiding and coaching product teams to deliver customer value. Experience in Scrum, Kanban, and agile product development required. Fluency in English is essential.

This part-time position involves loading, unloading, shipping, receiving, scanning, sorting, and stocking packages. May utilize heavy machinery. Requires ability to lift up to 70 lbs., read and memorize postal codes, and work flexible hours. Warehouse experience is preferred.

Manage the industrialization of the supply chain for Airbus retrofit programs. Translate program requirements into inputs for other departments and collaborate with the Supply Chain Manager Retrofit to ensure alignment with retrofit objectives.

As an EMI/EMC Engineer, you will design, analyze, and test unmanned air vehicle systems. You will identify and mitigate EMI/EMC vulnerabilities, support product compliance, and design reliable hardware. You will also support expanding testing capabilities and collaborate with engineers to review schematics and PCB layouts.

Experienced Full-Stack Developers will contribute to the development and maintenance of a web application for the German property management industry. Responsibilities include implementing backend logic, database, and API, and working within an AI-first development environment.