developer English-speaking jobs in Siegen

Junior Operations Securities Manager will own daily reconciliation, settlement, and security transaction processes. Support analysis of corporate action events, communicate with external partners, and assist in developing scalable processes. Requires experience in securities services, brokerage, or asset management and fluency in German and English.

Design System Designer (m/f/d) will develop and maintain the company's Design System. Responsibilities include creating, evolving, and reviewing components and patterns, documenting design standards, and collaborating with developers. Requires 5+ years of product design experience, a portfolio showcasing Design System work, and proficiency in Figma, Storybook, and Supernova.

Designs, coordinates, and improves extracurricular learning activities at a coding education institution. Manages programs like soft skill training, technical workshops, and community initiatives. Communicates with students, alumni, and partners to ensure program clarity and engagement.

Enable in-house AI solutions by providing concepts, templates, and implementations of AI service infrastructure and tooling. Collaborate with ML Engineers to bring AI solutions to production, supporting their review, monitoring, and maintenance.

Senior Technical Manager (f/m/x) Building Retrofit & Decarbonisation is needed to support fund teams in developing net zero implementation plans and identifying decarbonisation prop tech solutions. The role requires experience in delivering net zero carbon, energy efficiency, or building retrofit programs in the EU and experience with energy or building services modeling packages.

Lead development efforts for the AUGENTIC software platform "Qomitto". Balance strategic leadership with technical oversight, managing a team of 20 developers. Design and optimize the full software development life cycle, ensuring platform stability and quality. Drive the ScrumBan model, manage release cycles, and oversee code development and testing.

Lead and build a consulting team within Cognizant's Manufacturing Consulting practice in DACH. Manage and grow a customer base, develop innovative strategies, and deliver solutions for complex client situations. Requires domain experience in Manufacturing, proven consulting experience, and the ability to manage large complex programs. Fluency in English and German is essential.

Cloud Engineer needed for operation, monitoring, and development of Azure-based cloud services. Building, maintaining, and optimizing CI/CD pipelines. Enhancing cloud architecture, collaborating on technical issues, and supporting customers with cloud deployments. Requires a degree in computer science, business informatics, or a comparable field and technical knowledge in Microsoft Azure, CI/CD pipelines, container technologies, monitoring & logging, and REST APIs. Experience with SAP-related integration scenarios is a plus.

Manages the full recruitment process, identifies and approaches candidates, develops sourcing strategies, and builds relationships with stakeholders.

Software engineer to build robust software systems for machine learning solutions on major cloud platforms. Translate client needs into technical solutions and collaborate with cross-functional teams.

Build and lead the finance function of a cross-border aerospace, space, and defense group. Establish financial reporting, cash discipline, profitability visibility, and financing readiness. Manage monthly close, group reporting, treasury, budgeting, and forecasting. Drive pricing discipline, commercial finance, and margin expansion. Lead acquisitions, including due diligence, valuation, and post-merger integration.

Student Assistant to support digital communications team in developing engaging content, campaigns, and strategies. Assist with content creation, campaign execution, website management, and performance tracking. Requires experience in digital communications, content writing, SEO, and proficiency in Canva, Adobe Creative Suite, and CMS platforms.

Develop, implement, and maintain advanced risk measurement methodologies for Interest Rate Risk in the Banking Book (IRRBB) and Credit Spread Risk in the Banking Book. Lead the design, implementation, and monitoring of pricing and valuation models for interest rate derivatives. Establish and maintain risk limits for IRRBB and associated derivatives.

Phagestack, a biotech startup, seeks a BTA, CTA, or Biologielaborant:in to perform microbiology and molecular biology lab work. Responsibilities include bacterial cultivation, phage isolation, and applying molecular biology techniques. Must have hands-on experience in sterile lab environments and a structured work style. Fluent in German or English required.

Backend Engineer will design, develop, test, deploy, and maintain software within the Grow & Engage domain, focusing on customer acquisition and onboarding. Experience with JVM languages, Spring Boot, microservices, and cloud architecture (AWS) is required.

Designs, maintains, and evolves ML model benchmarking and validation infrastructure. Validates compiled models across diverse hardware platforms. Collaborates with engineers to diagnose and resolve failures. Builds scalable test pipelines and contributes to test cases and tooling.

Provides technical advice and service assistance to customers and Authorized Service Facilities for Textron Aviation products. Maintains customer goodwill by addressing all issues concerning their aircraft. Documents field issues and fleet concerns for product improvement consideration. Researches and responds to customer inquiries regarding technical assistance, warranty, and service programs. Develops relationships with customers and participates in trade shows and technical events.

Lead technically complex projects for ASIC development in consumer electronics. Manage international teams, coordinate with external partners, and ensure projects meet scope, time, quality, and budget targets.

As a Sales & Marketing Intern, you will support the planning and execution of marketing campaigns, create marketing materials, analyze market trends, and assist with event management. You will also maintain customer data, prepare reports, and collaborate with various departments.

Advises on safety and occupational health measures, prepares safety instructions, and conducts inspections to ensure compliance with OSHA standards. Implements safety programs, investigates accidents, and provides safety training to supervisors and employees. Serves as the facilities' technical expert on safety and environmental issues, including infrastructure and equipment modernization projects. Requires certification as a safety professional in accordance with paragraph 7 of the Arbeitssicherheitsgesetz (AsiG).