You will work at the centre of our platform strategy, owning core journeys that have a visible impact on our customers and internal teams. In a tight, cross-functional setup with Product, Design, Data and Platform Engineering, you help shape how we build products – from architecture and tooling to engineering practices and ways of working across the chapter. We offer real responsibility and autonomy, trusting you to make decisions, ship, measure and iterate, within a team culture that values openness, feedback, continuous learning and pragmatic solutions over ego and over-engineering.
Lead Product Engineer (f/m/d)
Your Mission
As Lead Product Engineer at hallo theo, you design, build and ship scalable product solutions that power our platform. You own critical user journeys end-to-end – from early discovery with Product and Design, through technical design and implementation, all the way to rollout, quality and iteration based on data and customer feedback. You act as a technical sparring partner and help raise the engineering bar across the product team.
Your Responsibilities
- Own the end-to-end delivery of complex product features and services – from discovery and scoping to rollout, monitoring and iteration.
- Design and implement scalable, reliable and secure solutions, ensuring high standards in code quality, testing and observability.
- Lead technical decision-making within the product team (architecture, tooling, engineering practices) in close alignment with the platform and data teams.
- Mentor and enable other engineers through code reviews, pair programming and coaching; actively contribute to shared standards and best practices.
- Collaborate closely with Product Managers, Designers and Data to translate commercial and user needs into impactful, measurable product outcomes.
Preferred background (must-have)
- 5+ years of experience as a Senior / Lead Product Engineer or similar role, building and operating user-facing products on a modern web/backend stack.
- Proven track record of owning a product area or core journey end-to-end, including discovery, technical solution design, implementation and ongoing optimisation.
- Strong skills in system and API design, distributed systems and scalable architectures; comfortable integrating with and extending existing platform services.
- Demonstrated ability to improve engineering practices for a team or chapter (testing strategy, CI/CD, monitoring, security, documentation).
- High degree of product thinking: you work comfortably with hypotheses, metrics, experimentation and stakeholder trade-offs.
- Language: German at C1 level and strong English for day-to-day collaboration and stakeholder communication.
Nice to have
- Experience with platform or multi-tenant products (e.g. portals, B2B tools, data-heavy products).
- Background in Forward Deployed / consulting-style engineering, working closely with internal or external customers on their specific problems.
- Experience acting as a practice lead / chapter lead / tech lead defining standards, supporting hiring and facilitating knowledge sharing.
- Previous exposure to high-growth or re-organising environments, helping shape team structures and interfaces between product, platform and data.