finance English-speaking jobs in Siegen

ATIA Ltd seeks reseller companies to find clients needing IT systems, web applications, or ISO standard services. Partnerships offer 20-30% of project value or a markup on a base price.

The Max Planck Institute for Political and Social Science seeks a Postdoctoral Fellow in Political Science to conduct research on the relationship between political institutions and conflict. The successful candidate will write academic articles, conduct fieldwork, and contribute to the department's research environment.

Database Administrator responsible for installation, administration, and operation of MS SQL Server databases. Duties include automation, monitoring, optimization, and analysis of database environments. Requires knowledge of database operation and optimization, independent work ethic, and strong communication skills.

Leads a distributed team of engineers focused on resolving software defects and delivering bug fixes for open source software. Manages team performance, provides coaching and mentorship, and collaborates with other engineering teams. Requires experience with software development using C, C++, Go, Python, and version control systems.

Provides administrative and logistical support to the MTRI team. Responsibilities include organizing marketing activities, managing office supplies, and handling correspondence. Requires advanced MS Office skills, fluency in English and German, and strong organizational and communication skills.

Account Executive to expand Uber Eats' restaurant network in NRW/Hessen. Responsibilities include executing sales campaigns, negotiating partnerships, onboarding new restaurant partners, and collaborating with cross-functional teams. Requires experience in outbound sales, digital tools, and fluency in German and English.

As a Portfolio Manager, you will own the global product strategy for assigned product lines and software, creating roadmaps and business cases. You will champion new product development, act as the "voice of the region" for market needs, and manage the entire product lifecycle.

Senior Manager for Corporate Strategy, focusing on the Consumer Markets business segment. Leads strategic initiatives, advises top management, and ensures business unit perspective is reflected in corporate strategy. Requires a degree in a relevant field, 5+ years of experience in strategy roles, and experience in B2B high-tech manufacturing, B2B2C industries, or diversified manufacturing.

Quality Engineer to design, develop, and maintain test cases for Android, iOS, and Web applications. Requires 3+ years of experience in software testing, coding in Java, Kotlin, JavaScript, and strong debugging skills.

Senior Software Engineer will develop production-ready software for sophisticated, distributed systems powering modern railway passenger information solutions. Responsibilities include designing software architecture, building secure software, and collaborating with system engineering experts.

The CFO will oversee finance, controlling, HR, legal, and IT functions for national and international locations. Responsibilities include corporate financing, financial statement preparation, liquidity planning, budgeting, forecasting, and M&A deals. The CFO will also analyze and optimize process workflows and liaise with banks, auditors, tax advisors, and shareholders.

Experienced IT Infrastructure Engineer needed to develop and maintain IaaS and PaaS services for next-generation aircraft simulators. Responsibilities include defining infrastructure concepts, ensuring smooth operation, and implementing Infrastructure-as-Code solutions. Requires a Master's degree, 5+ years of experience, and expertise in virtualization, automation, and scripting languages.

Develop and implement strategic plans for photovoltaic power plant investments in Europe. Oversee asset management, team leadership, and stakeholder relationships. Identify new business opportunities and ensure regulatory compliance.

The GFZ is seeking a senior scientist to lead its Secondary Ion Mass Spectrometry (SIMS) user facility. Responsibilities include managing laboratory operations, advising scientists on SIMS applications, developing research strategies, and reporting on laboratory utilization. The successful candidate will have a PhD in the natural sciences, at least 5 years of experience with SIMS instruments, and expertise in mineralogy, crystallography, and sample preparation.

PhD student will use MINFLUX microscopy to track proteins during translocation into mitochondria. Tasks include establishing labeling techniques, isolating proteins, and contributing to publications.

The Fraunhofer Institute for Integrated Circuits IIS seeks a Research Associate to develop next-generation video codecs. Responsibilities include algorithm design, technology benchmarking, and software quality assurance. A degree in a relevant field, strong signal processing knowledge, and experience with video codecs are required.

This full/part-time role at TUI BLUE Sylt, Germany, starting 01.03.2026, requires German fluency and certifications in Yoga, Functional Training, and Personal Training. You will lead group fitness sessions, plan activities, and engage with guests.

Quality Engineer Regulations will collaborate cross-functionally to ensure products meet legal requirements, Advantest standards, and customer expectations. Responsibilities include managing third-party certifications, influencing product design for safety and compliance, and developing product market access plans.

PhD position at the Institute for Molecular Pathogenesis, Heinrich Heine University Düsseldorf. Research focus: host-pathogen interactions, specifically how a host defense factor breaks down bacterial outer membranes. Requires M.Sc. in a relevant field, research experience in molecular biology, cell biology, and biophysics, and fluency in English.

Experienced Communications Manager needed for 12-month maternity cover. Support global communications and PR activities, manage media relationships, and coordinate events. Develop and execute brand communication strategies across consumer, trade, and partner channels.