penetration tester English-speaking jobs in Gelsenkirchen

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.

Senior Finance Operations & SSC Excellence Manager for Vantage Towers. Manages interface between SSC team and stakeholders, creates reports, performs cash flow reporting and lease reviews, executes SOX and internal controls, and ensures quality assurance of SSC activities. Requires 3+ years of financial accounting experience, real estate lease accounting knowledge, 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.

Support the European marketing team for the Beauty Care division, analyzing market data, conducting trend analysis, and steering projects.

Learn to manufacture molds, work with CNC machine tools, and understand materials science in this apprenticeship.

Leads AP, AR, GL, and Fixed Assets teams, shaping financial information flow and ensuring accuracy and control. Owns the full closing cycle under IFRS and Local GAAP, designing and enhancing Accounting processes for a scalable environment. Plays a key role in Finance Transformation, optimizing SAP S/4HANA and improving data flows. Leads Local GAAP statutory audits and supports IFRS Group audits.

Experienced Workday HCM Consultant to lead and support large-scale Workday-enabled HR transformations. Configure and optimize Workday HCM modules, translate business requirements into solution design, and facilitate workshops.

Customer Service Intern will respond to customer inquiries via phone, email, and live chat. Provide information about products and services, resolve customer complaints, and collaborate with team members. Must have very good knowledge of German, English, and Turkish, strong communication skills, and excellent online/offline marketing skills.

This apprenticeship program provides on-the-job training in dispatch and logistics services. Successful candidates will gain experience in administrative tasks, process compliance, and develop relevant skills.

The Head of Design & Engineering will lead a team of 10-20, ensuring maximum design accuracy and reliability for tanks, silos, and architectural surface systems. Responsibilities include design ownership, technical precision, engineering of various products, efficiency & cost optimization, design for manufacturing, standardization, team leadership, and cross-functional coordination.

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.

DevOps Engineer will build, integrate, and evolve a Kubernetes-based Application Tier for medical and public-health research applications. Responsibilities include designing, building, and maintaining cloud-native infrastructure, improving platform workflows, and contributing to architectural discussions. Experience with Kubernetes, Terraform, Helm, and cloud networking is required.

Designs end-to-end AI and data architectures for vehicles, focusing on edge computing and diverse use cases. Builds architectures for automated driving and digital cockpits, providing architectural guidance to business units and development teams. Drives implementation of scalable AI software platforms using the latest AI technologies.

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.

Digital Marketing Specialist needed for a part-time position (20 hours/week). Develop and implement digital marketing strategies, manage advertising campaigns, analyze performance, and create engaging content. Bachelor's degree in marketing or related field and 2+ years of digital marketing experience required. Fluent in English.

Trade Compliance Expert (m/f/d) will ensure Advantest meets import and export compliance regulations. Provides support and guidance to Advantest sites on international import/export compliance management, licenses, training, auditing, and process improvements.

Account Manager to expand Combient Foundry's footprint in the DACH region. Develop and manage member portfolio, orchestrating venture-client cycles from needs identification to scale. Align stakeholders, connect corporates with startups, and ensure measurable business impact. Requires 3+ years of project/program management experience, strong communication skills, and native-level German fluency.

PhD position in Pediatric Hematology and Experimental Oncology. Research will focus on optimizing existing cancer treatments and developing new therapeutic approaches for children. Requires a Master's degree in a relevant field and experience with cell culture, molecular biology, and biochemical methods.

Principal Consultant – Underground Operations will diagnose operational challenges, analyze production data, and implement solutions to improve underground mining operations. Requires 15-20 years of experience in underground mining operations, mine engineering, or operational improvement roles.

Join the TRATON Global Trainee Program starting September 1st, 2026, and contribute to the strategic transformation and operational excellence of TRATON GROUP's Labour Relations organization.