Staff Engineer, Checkout Platform

About your tasks:

• Build and evolve the Core Commerce Servicesplatform: Take a hands-on role in creating scalable, channel-independent checkout capabilities, from early technical discovery and design through implementation and production.
• Shape the architecture: Define APIs, domain boundaries and integration patterns while making pragmatic decisions around scalability, reliability, security, observability and long-term maintainability.
• Drive technical alignment: Work across Checkout, Payment and other dependent teams to align technical decisions and integration contracts while maintaining clear ownership boundaries.
• Mentor and grow engineers: Develop others through pairing, design discussions, code reviews and technical feedback while helping raise engineering standards across the team.
• Enable future commerce: Partner with Product to translate business needs into scalable technical solutions and establish the foundations for AI-powered assistants, agentic commerce and emerging channels.

About you:

• You bring strong Java and backend engineering expertise and have experience designing and building backend services, platforms and large-scale distributed systems. You remain hands-on and are comfortable contributing directly to production code.
• You have operated at Staff/Principal level or demonstrated equivalent senior technical leadership, with strong system design and architecture capabilities and the ability to take significant technical ownership with a high level of autonomy.
• You are comfortable working in a greenfield / 0-to-1 environment, where architecture, APIs and domain boundaries still need to be shaped. You know how to explore options, evaluate trade-offs and turn ambiguity into pragmatic technical decisions.
• You have a strong track record of mentoring engineers and leading through influence, helping raise the technical level of a team and creating alignment across engineering domains.
• Experience with headless or traditional checkout, order management, SaaS/platform engineering, e-commerce or marketplaces would be a valuable plus rather than a requirement.

About your benefits:

In order to provide you with the best possible support for your individual needs - whether it‘s living a healthy life, having enough time for your family, or developing your skills - we offer a wide range of different, site-specific benefits:

• Work from Home: If your job does not require you to be present in the office, we can arrange the place you work from individually - even for up to 20 days a year anywhere in the EU.
• Sports:Stay healthy. Profit from a membership (M) package at Urban Sports Club, so that you can take advantage of a huge variety of sport offers.
• Mobility: We provide our employees with a fully costed Deutschland Ticket which can be used at any time.
• Employee discount: You get a 10 % employee discount on all over the counter, beauty and personal care products in our online store & 20 % discount on nu3.
• Personal development: Grow! We support and encourage your individual development through various in- and external trainings.
• Corporate pension plan:We offer a company pension scheme and have a dedicated external consultant to offer you the best guidance and advice.