software developer English-speaking jobs in Siegen

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.

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.

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.

Manage outsourced payroll for France, ensuring accuracy, compliance, and timely payments. Requires 4+ years of experience in multinational payroll, French native fluency, and proficiency in relevant software.

The Friedrich Schiller University Jena seeks a Group Leader for Electron Microscopy to lead a core facility, conduct research, supervise staff, and secure funding.

As a Service Manager, you will be the central contact person and project manager for service support (incident and problem management) for global air traffic control and airport customers. You will ensure timely analysis and rectification of faults in customer systems and advise customers on technical matters.

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.

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.

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.

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.

Drive the strategic professionalization and harmonization of the field sales organization across all subsidiaries. Define, formalize, and communicate global standards and frameworks for field sales tasks. Conceptualize and drive strategic productivity improvement initiatives to enhance field sales efficiency. Collaborate with HR to define role profiles, training requirements, and career paths in field sales. Lead and/or contribute to global sales projects and initiatives.

Lead an on-site technical team, ensuring smooth daily Data Center operations and excellent customer relationships. Drive a proactive, safe, and high-performance environment while optimizing resources and continuously improving processes.

This PhD position at the Helmholtz School for Data Science in Life, Earth and Energy (HDS-LEE) focuses on developing machine learning algorithms to accelerate AC power flow computations. The successful candidate will extend existing neural network architectures to solve AC-PF problems of varying complexities and investigate hybrid ML-classical approaches.

We seek a high-level Web Designer to create premium, luxury-standard websites. Design high-end, visually refined websites with a luxury feel, ensuring a complete, polished digital experience.

Customer service representative needed for full-time position. Processes customer emails, provides telephone and written communication, offers expert advice, and solves customer problems. Requires good German and Bulgarian language skills and proficiency in Microsoft Office.

Drive sales and manage customer relationships in the construction industry. Manage and grow customer platforms, focusing on high-potential customers. Promote Berner as a premium brand and handle objections, delivery, and quality claims. Analyze sales area KPIs and report to superiors. Collaborate with the sales team to achieve performance goals.

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.

Partner with a focus on SAP, responsible for business development, client leadership, and engagement oversight. Leads complex SAP programs, shapes growth strategy, and mentors a consulting team. Requires 10+ years of SAP consulting experience, leadership roles, and expertise in S/4HANA, Finance, Supply Chain, Data & Analytics, or industry-specific solutions.

Lead the end-to-end deployment of Takeda's S/4HANA process model at the Oranienburg site, ensuring readiness, compliance, stable operations, and uninterrupted supply. Manage risks, issues, dependencies, and business continuity. Drive change, communication, and training efforts. Partner with Site Leadership, OpU, GSQ, DD&T, and Global Process Experts. Secure and coordinate SMEs for design, testing, data, and cutover. Ensure master data quality and readiness for validation and migration. Plan and safeguard cutover with strong contingency measures. Maintain manufacturing and quality stability during transition.

IT Security Specialist will monitor security events, investigate alerts, and handle incidents. Experience with vulnerability management, SIEM tools, and incident response is required. Strong cybersecurity fundamentals and communication skills are essential.