Software tester English-speaking jobs in Oberhausen

Optical Engineer to develop advanced optical systems for printing machines. Designs created in Zemax and transferred to SolidWorks. Collaborates with R&D team, mechanics, electronics, and firmware. Requires Master's degree in optics, photonics, or applied physics and 10+ years of experience.

Collect and validate in-store data for grocery retailers using a handheld device. Responsibilities include data capture, imagery, and survey completion. Requires fluency in English, app proficiency, and the ability to work independently. Travel to assigned retail locations is required.

Sales Representative fluent in German and English to promote energy audit services and drive sales growth in the German-speaking market.

As Senior Business Development Manager Western Europe, you will drive the international expansion of Encavis' renewable energy portfolio. You will define and execute market entry strategies for utility-scale Solar PV, Wind, and BESS projects, aiming for at least 500 MW COD per market. You will lead portfolio acquisition processes, manage partnerships, and represent the company in target countries.

Provide consulting support to national and international manufacturing clients in the US market. Develop customized solutions for clients ranging from hidden champions to global market leaders.

Inbound Sales Representative will manage the full sales cycle for SumUp products in Switzerland and Austria. Responsibilities include qualifying leads, engaging prospects, delivering consultations, and meeting sales KPIs. The ideal candidate has proven sales experience, fluency in German (C1+), and strong communication skills.

Support the Sales team in driving strategic initiatives, optimizing processes, and identifying growth opportunities. Conduct market research, translate business questions into data analyses, and prepare materials for client presentations. Collaborate with internal stakeholders to design and deliver new verticals and expansion opportunities.

Lead the development and growth of the Captive Reinsurance strategy across EMEA. Build relationships within the Captive community and drive business growth. Collaborate with teams to ensure seamless placement and handling of Captive business. Identify and secure new opportunities. Shape and grow a high-performing team.

Intern will support corporate development projects, conduct competitor analysis, and prepare presentations for the Board of Management.

The Administrative Specialist & Executive Support provides high-level administrative, operational, and HR support to the Tübingen management team. This role coordinates calendars, meetings, travel, and office operations, serving as a key liaison between Germany and the US. The successful candidate will manage data, support internal communication, and assist with HR processes.

Support and optimize the full recruitment lifecycle, from sourcing to onboarding. Manage core HR operations, including employment contracts and payroll coordination. Serve as a point of contact for the team and external partners.

Provides dedicated customer service and problem resolution for assigned clients. Manages customer relationships, processes shipment requests, and mentors customer service agents. Responds to customer inquiries, resolves complaints, and collaborates with internal teams to meet client needs.

As a Junior Product Designer, you will design and develop on-trend products across multiple categories, including Deco, Tabletop, Kids, and Bathroom. You will collaborate with cross-functional teams and conduct trend research to support collection building.

The Director Digital Cement Operations will lead Heidelberg Materials' digital cement strategy, translating operational priorities into scalable solutions and ensuring measurable value creation. The role bridges Digital and the Competence Center Cement, driving the global rollout of digital solutions and overseeing product portfolio decisions.

As a Data Scientist on the AI Search team, you will develop and implement algorithms to enhance hotel search ranking and relevance across 35+ languages and 55 countries. You will analyze large datasets, design scalable search architectures, and collaborate with cross-functional teams to improve user experience.

The Chair of Public Economics seeks a Graduate Research and Teaching Assistant for a fixed-term, 75% position. Responsibilities include conducting research on labor, population, and health economics, presenting findings at conferences, and teaching English-language courses.

Corporate Legal Operations Manager supports a group of over 50 legal entities with corporate measures, restructurings, M&A transactions, and intra-group agreements. Requires a strong legal background, experience in corporate legal processes, and fluency in German and English.

Senior Risk Engineer specializing in gas turbines for power plants. Provides risk assessment, mitigation, and loss control expertise to Allianz underwriting and clients. Develops risk management programs, conducts site surveys, and tracks technological advancements. Requires a Master's degree in mechanical engineering and 5+ years of experience in the power industry. Fluent German and English required.

PhD position in machine learning and computer simulations for materials and process design. Develop machine learning models for clustering, classification, regression, and reinforcement tasks to enhance or replace computational engineering methods.

Senior Business Development Manager will drive commercial performance of consumer financing and private leasing. Responsibilities include designing and optimizing financial products, leading process implementation, and collaborating with cross-functional teams to launch new customer solutions. Requires 3+ years of experience in car credit and/or private leasing, strong analytical skills, and proficiency in Excel and English.