Lead Full Stack Software Engineer - Internal Platforms (f/m/d)

Mission Brief At Isar Aerospace, we are building the technology and infrastructure needed to make access to space more affordable, sustainable, and scalable. We are looking for a highly skilled, hands-on Lead Full Stack Software Engineer to lead the development of modern internal software platforms and applications that support our rapidly growing organization. In this role, you will design and build software solutions that connect people, processes, and data across engineering, manufacturing, operations, and business functions. You will work directly with stakeholders to understand challenges, identify opportunities for automation and digitalization, and turn ideas into intuitive, scalable applications. This is an opportunity to take ownership of greenfield software development, influence architectural decisions, and help shape how we build internal technology at Isar Aerospace. We are looking for someone who enjoys solving complex problems, moves quickly from concept to working software, and combines strong engineering fundamentals with a pragmatic, product-oriented mindset. Your role in our Space Mission... Software Development & Architecture • Lead the design, development, and deployment of modern internal applications and software platforms. • Build scalable, maintainable full-stack solutions, including frontend interfaces, backend services, APIs, and databases. • Take technical ownership of applications from initial concept and prototyping through production deployment and ongoing evolution. • Define and implement software architecture, data models, integration patterns, and development standards. • Ensure solutions meet appropriate requirements for performance, reliability, security, and maintainability. • Establish engineering best practices, including automated testing, code reviews, CI/CD, and documentation. Product Development & Innovation • Collaborate directly with stakeholders across engineering, manufacturing, operations, and business teams to identify opportunities for software-driven improvements. • Translate complex operational requirements into intuitive, user-friendly applications. • Rapidly prototype new ideas, validate solutions with end users, and iterate based on feedback. • Develop applications that streamline workflows, improve data accessibility, increase transparency, and reduce manual processes. • Identify opportunities to replace fragmented tools, spreadsheets, and manual workflows with integrated software solutions. • Balance rapid delivery of business value with sound long-term technical decisions. Systems Integration & Data • Design and implement integrations between internally developed applications, enterprise software, and engineering systems. • Develop robust APIs and data services to enable interoperability across the organization. • Work with relational databases, structured and unstructured data, and modern data management approaches. • Collaborate with enterprise systems and data engineering teams to ensure applications integrate effectively into the broader technology landscape. Technical Leadership & AI-Assisted Development • Act as a technical leader, setting engineering direction and guiding architectural decisions. • Champion modern software development approaches, including AI-assisted coding and agentic development tools. • Use technologies such as GitHub Copilot, Claude Code, or OpenAI Codex to accelerate prototyping, development, testing, and documentation where appropriate. • Evaluate emerging technologies and development approaches, selecting tools based on practical business value. • Contribute to the growth of internal software engineering capabilities, including mentoring future team members. • Foster a culture of ownership, experimentation, con