Software Engineer

• Design, develop, test, and operate core APIs for secure customer payments
• Build services supporting deferred payment options and other payment products
• Interface directly with merchant systems
• Ensure products comply with demanding fintech industry standards
• Create highly scalable solutions and own the entire application lifecycle
• Design technical solutions within the team’s architecture
• Implement, test, and operate services in production
• Apply continuous integration, code quality, code reviews, and test-driven development
• Select technologies and tools for large-scale cloud applications on AWS using microservices architecture
• Share knowledge with colleagues and help develop their technical skills
• Contribute to payment processing, checkout experience, risk steering, and backend reconciliation

• Build a high-performing software development organization
• Foster a modern learning culture and coach team leads
• Contribute to product and development roadmaps
• Define target technical architectures and ensure the scalability and performance of the software architecture
• Implement and further develop hardware-near software architectures, CI/CD pipelines, and version control systems such as SVN and GitLab
• Ensure security by design and high software quality
• Integrate new cloud and AI technologies into existing architectures
• Manage the portfolio, prioritization, and resource planning, taking technical risks, dependencies, and business value into account
• Support teams in delivering work autonomously
• Own supplier and technology management, including make-or-buy decisions and the management of external partners
• Evaluate technology stacks and manage risks associated with external components
• Further develop engineering processes such as Scrum, Kanban, OKRs, and SAFe/LeSS
• Use delivery metrics such as lead time, deployment frequency, and defect rates for optimization
• Coordinate with Architecture, Technology, the Executive Board, HR, and Product Management
• Represent the software development organization externally
• Ensure effective technical communication between teams and locations
• Work with the COO on relevant decisions

Head of Software Development

• Develop, implement, and iterate on core gameplay mechanics, interactive systems, and game logic for mobile platforms using Unity3D and C#
• Profile, debug, and optimize game performance, memory usage, and battery consumption across iOS and Android devices
• Implement touch and gesture controls, mobile UI scaling, and native device features
• Collaborate with UX/UI designers, 3D artists, and creative directors to ensure technical feasibility and deliver polished mobile experiences
• Rapidly prototype gameplay ideas and immersive mechanics for internal and client presentations

Unity Gameplay Developer – Mobile, iOS, Android

• Develop hardware-related software for measuring instruments, sensors, and actuators
• Continuously optimize existing applications
• Design, program, and enhance measurement programs and control systems for metrology equipment
• Analyze errors, perform maintenance, and troubleshoot measurement systems
• Process, analyze, and provide measurement and raw data
• Develop and document human-machine interfaces (HMIs) and application programming interfaces (APIs)
• Further develop the software strategy for metrology equipment in collaboration with internal and external stakeholders
• Support the commissioning of new systems
• Create operating and training documentation
• Conduct user training for employees

• Develop and maintain mobile applications using React Native and Expo
• Use TypeScript to write type-safe code
• Deploy apps to the Google Play Store and Apple App Store
• Take technical ownership of frontend development
• Help shape the product roadmap
• Develop new features in collaboration with the product team and senior developers
• Participate in sprint planning
• Actively contribute to the company culture and growing tech team

Mid-Level / Senior App Developer – Startup

• Develop and implement sustainable SAP EWM solutions for national and international logistics processes
• Program and enhance solutions using ABAP OO to integrate modern warehouse solutions, with a focus on SAP EWM
• Support the integration of modern warehouse and automation solutions
• Analyze, design, and implement technical requirements in logistics
• Actively contribute to the technical advancement of the SAP landscape and development standards

ABAP Developer – SAP EWM

• Prepare potential analyses for securing building rights, as well as utilization and revitalization concepts
• Support and help shape projects from the initiation phase onward
• Independently manage new-build and refurbishment projects across office, hotel, residential, and/or industrial sectors
• Lead the planning, procurement, construction, and handover phases as project manager and client representative
• Monitor cost and schedule targets and ensure the required quality standards
• Maintain relationships with investors, owners, and users

Senior Architect – Project Developer

• Entwicklung von Command-and-Control-Systemen (C2), die operative und technische Anforderungen erfüllen, die sich aus den strategischen Unternehmenszielen ableiten
• Integration der Software und Technologie von Walaris in militärische und sicherheitsrelevante Systeme, um autonome Fähigkeiten hinzuzufügen und die Gesamtleistung der Systeme zu verbessern
• Entwicklung von Softwarelösungen zur Verbesserung der Systemzuverlässigkeit, der Geschwindigkeit von Deployments und der Developer Experience
• Eigenverantwortliche Umsetzung komplexer Funktionen über den gesamten Entwicklungsprozess hinweg – vom webbasierten Frontend über verteilte Backend-Services und das technische Design bis hin zur iterativen Bereitstellung in der Produktion
• Sicherstellung der Einhaltung relevanter militärischer Sicherheits- und Qualitätsstandards
• Zusammenarbeit mit bereichsübergreifenden Teams, um Anforderungen aus Forschung und Entwicklung, Vertrieb und Produktmanagement während des gesamten Entwicklungsprozesses zu integrieren und zu bearbeiten

• Develop and design applications in CRM/IS-U and S/4HANA Utilities
• Extend SAP CRM WebUI/ICWC interfaces and build Fiori apps for S/4U scenarios
• Implement solutions using ABAP OO, OData/Gateway, Workflows, and BRF+
• Own and optimize CRM Middleware (BDOC/PI) and integration paths into S/4 environments
• Analyze, prioritize, and sustainably resolve incidents and problems
• Coordinate corrections, optimizations, and minor enhancements
• Perform root cause analysis and derive structural improvements in code quality, performance, and stability
• Collaborate with business departments, application support, Basis/DevOps teams, and external service providers
• Build stable data integrations and support migration activities
• Ensure system performance and reliability
• Contribute to the S/4 Utilities roadmap in major transformation projects, including migration and cloud architecture
• Use sandbox and vanilla test environments for prototyping, proof-of-concepts, and exploring new technologies
• Work in agile project setups (Scrum/SAFe)
• Coach nearshore/offshore developers
• Travel occasionally as required

Senior Lead Developer – Integration Architect, SAP CRM/IS U

• Program, modify, and optimize PLC control systems
• Commission machinery and systems, either internally or on-site at customer locations
• Troubleshoot, analyze, and resolve faults in control and automation systems
• Create, maintain, and expand PLC programs
• Visualize system processes using HMI or SCADA systems
• Conduct functional tests and system acceptance procedures
• Support the optimization of existing production and automation processes
• Collaborate with electrical design, mechanical engineering, project management, and customers
• Document programs, modifications, and commissioning activities
• Configure and integrate drives, sensors, actuators, and fieldbus systems
• Provide service support, remote assistance, and support with technical inquiries
• VOLENTUM works with applicants to identify suitable tasks, industries, technologies, locations, and working conditions, then selectively matches them with suitable customer companies

Software Engineer jobs in Germany