Lead Backend Engineer (Typescript)

In Short: Our Direct to Consumer business is performing and growing strongly, which is why we - within the Customer Platform team in Commercial Technology at On - are looking for a Lead Backend Engineer to scale On’s online business to the next level. Our newly created team is focussed on providing a customer communication platform product. As an experienced engineer, you will be responsible to design, build, deploy, test and operate our digital services. You will be sitting in our office in London and collaborating closely with the cross-functional Digital teams across our key locations. The Lead Software Engineer role will report to the relevant Senior Lead - Engineering Manager within Commercial Technology. Your Mission: You will build and maintain the Customer platform by providing APIs, real-time events and documentation to reduce the cognitive load and enable stream-aligned teams to rapidly deliver premium, personalized experiences across all consumer touch points. You iteratively deliver value and quality with your solutions to meet both technical and internal consumer needs. With the team, you will build, release and operate complex systems. You will own and evolve the architecture (by leading decision making through RFCs) that scales for millions of customers across the globe. You will act as an expert in the given technology area, leverage best in class engineering practices including continuous integration and deployment, code reviews, high test coverage and allowing for observability. You collaborate effectively through verbal and written communication with diverse teams and stakeholders and drive alignment beyond the team. You will engage in the engineering community by sharing knowledge, mentoring your team mates, receiving / providing feedback or growing our team by supporting the hiring. Your Story: You have 5-6 years of backend experience designing, building, testing, releasing and operating scalable systems with a strong problem-solving mindset striving for excellence and taking full accountability. You have experience within the NodeJS (TypeScript) eco-system, designing and developing APIs (bonus if you have experience with GraphQL and NestJS). You have experience working with and designing distributed systems. You are competent in building and designing event driven systems (e.g. using Kafka). You have mastered automated testing, TDD, and performance debugging tools and you are hands-on with operating the infrastructure on AWS or GCP. You are comfortable using containerized workloads and clusters like Kubernetes. You facilitate discussion as well as guide and mentor your peers by delivering praise and constructive feedback. You have a product mindset that makes you comfortable in owning and building features from the ground up, understanding the “why”, applying holistic thinking and delivering for impact using experimentation. Attributes of a successful candidate: Action-Oriented: Proactively taking on new opportunities with high energy and a sense of urgency. Team-focussed: Build strong partnerships in the team and beyond to meet shared objectives Alignment-driving: Drive alignment on topics inside the team by providing clear context, contributing to the planning of focus areas in the team and sharing updates proactively Manage Ambiguity: Operating effectively when things are not certain and help to bring clarity to the team. Viewing challenges as opportunities to grow and learn Self-Development: Seek new ways to grow and challenge your abilities both personally and professionally using feedback and reflection to gain insight into personal strengths and weaknesses Your Team: As you might expect from a running brand, the wider E-Commerce team at On is a fast-paced place to be. You will work in the diverse Commercial Technology domain, collaborating with Software Engineers, QA Engineers, Product Managers, Data Analytics, Marketing and others of stream-aligned or platform teams that are located in Berlin, Zurich and London. On is an Equal Opportunity Employer. We are committed to creating a work environment that is fair and inclusive, where all decisions related to recruitment, advancement, and retention are free of discrimination.