18 English-speaking jobs in Mainz

Regional Sales Manager to lead OEM sales in Germany, focusing on Aerospace & Defense sectors. Develop and execute growth strategies, cultivate new business, and manage sales pipelines. Requires a BA/BS degree, technical background, and 5+ years of sales experience in Aerospace & Defense.

Aerodynamic Engineer will design and simulate advanced turbocharger components, including volutes, turbine wheels, and guide vanes. Responsibilities include running high-fidelity simulations, generating turbine maps, and developing 1D/3D simulation methods. Requires a PhD or Master's degree in Mechanical Engineering or similar with a focus on turbomachinery or aerodynamics and 3+ years of experience in automotive or related engineering fields.

Business Developer to secure battery supply (new, used, surplus) across multiple categories. Negotiate and close B2B agreements with senior stakeholders. Build a sourcing strategy, qualify supply streams, and structure deals. Collaborate with internal teams to ensure safe, compliant transport and storage. Monitor market pricing and availability.

Senior Backend Engineer to design, develop, test, and maintain software in a JVM language and Spring Boot. Experience with microservice architecture, relational and non-relational databases, and AWS is required. Full professional proficiency in English is necessary.

Lead a team of 3D programmers, defining and driving the technical vision for rendering systems. Manage and mentor programmers, acting as the primary 3D expert for stakeholders. Contribute to complex 3D features and code reviews.

Outside Sales Executive for a high-stakes, uncapped commission environment. 80% field presence required, identifying, qualifying, and closing high-value accounts independently. Proven track record of top decile sales performance and a European driving license are essential.

Provides technical expertise and solutions to support sales. Analyzes customer specifications, recommends product configurations, and guides implementation planning. Develops technical presentations and collaborates with internal teams.

Manages complaints and live claims across various insurance products. Advises on and supports litigation and complaint handling for insurance legacy cases.

As a Sales Specialist – Battery Sourcing, you will secure high-quality, second-life-ready batteries from scrap yards, workshops, and other sources. You will negotiate contracts, perform on-site assessments, and build a supplier intelligence database. You will collaborate with the Business Development team to align sourcing targets with demand from OEMs, tier-1s, and energy storage companies.

Sales Specialist to identify, qualify, and win buyers for energy storage systems across key customer groups. Lead sales cycles, translate customer needs into commercial offers, and coordinate with internal stakeholders and partners.

Working student to support office management, focusing on customer training and consulting team coordination. Responsibilities include scheduling training sessions, managing correspondence, and arranging travel.

Collects mapping data using client-provided vehicles equipped with data collection equipment. Operates vehicles safely and efficiently, adhering to project guidelines. Maintains vehicle and equipment cleanliness and reports incidents professionally. Requires 5+ years of driving experience, 2+ years professional driving experience, and good English.

Experienced Clinical Research Associate needed for full-service CRO. Medpace provides Phase I-IV clinical development services to the biotechnology, pharmaceutical, and medical device industries. Sign-on bonus up to 7,500 EUR based on experience.

Team Lead Assembly to plan, coordinate, and oversee daily assembly operations, ensuring safety, quality, and productivity. Develop, implement, and optimize processes to improve production efficiency. Collaborate with cross-functional departments and team leaders.

QA Engineer to design, develop, and maintain automated test frameworks for Salesforce solutions. Responsibilities include testing Salesforce customizations, integrations, automations, and data flows. Requires 5+ years of experience with Playwright for end-to-end automation and strong experience testing Salesforce applications.

Develop and maintain high-performance backend applications using Golang. Design and optimize cloud-based solutions using AWS services. Design and manage databases including PostgreSQL, DynamoDB, Redis, and Elasticsearch.

Manages the lifecycle of DWDM optical transport products, defining product vision, strategy, and roadmaps. Develops product requirements, collaborates with cross-functional teams, and drives product adoption. Requires 7+ years of experience in optical networking product management.

System Architect to define and drive product strategy and architecture for Optical Transport, OLT, and ONT platforms. Experience in DWDM optical networks, GPON/XGS-PON, and NETCONF/YANG required.