IN SHORT:

At On, retail isn’t just a channel—it’s an experience. As we scale our global footprint, we’re laying the foundation for a

future-ready Point of Sale (POS) ecosystem. To do that, we need robust backend systems that orchestrate flawless integration

between the physical and digital, the store and the cloud.

We’re looking for a Lead Backend Software Engineer to drive the integration of our POS platform with mission-critical systems like

ERP, OMS, CRM, and loyalty engines. You’ll architect and build resilient services, shape our event-driven data flows, and ensure

our store operations stay fast, reliable, and future-proof. You’ll be joining the Retail Experience team—where technology meets

the shop floor and every request matters. If you love crafting clean APIs, streamlining integrations, and optimizing real-world

system performance, you’ll feel right at home.

YOUR MISSION:

* Backend & Integration Engineering:

Design, build, and scale backend services that power POS integrations across ERP, eCom, CRM, inventory, and loyalty platforms

Develop REST and GraphQL APIs that are performant, secure, and easy to consume Implement real-time and batch data sync,

authentication flows (OAuth, SSO), and secure event pipelines

* Architecture & Resilience:

Contribute to the design of a cloud-native, event-driven architecture for global retail operations Build scalable integration

patterns using message queues (Kafka, RabbitMQ) and serverless workflows Support observability through proactive monitoring,

alerting, and performance tuning (e.g., NewRelic)

* Testing & Quality Automation:

Ensure reliability through a robust automated testing stack: contract tests, load tests, and test data pipelines Collaborate with

QA and DevOps to streamline CI/CD and improve release confidence Participate in incident response and post-mortem analysis to

continuously harden platform stability

* Collaboration & Strategy:

Partner with frontend, product, and vendor teams to align integration design with platform capabilities Influence technical

decisions during vendor evaluations and rollout phases Impact roadmap decisions by sharing technical insights and platform

implications Actively contribute to the broader architecture vision for On’s composable commerce technology stack.

YOUR STORY:

5+ years of backend engineering experience with modern technologies (Node.js, TypeScript, or similar)
Proven track record integrating APIs across commerce, ERP, OMS, or CRM domains
Familiar with headless commerce, microservices, and composable architecture principles
Experience with message brokers (Kafka) and asynchronous data processing
Solid understanding of databases (e.g., PostgreSQL) and infrastructure-as-code tools (Terraform)
Skilled in designing, scaling, and monitoring cloud-native services (AWS, GCP, or Azure)
Familiarity with OAuth2, token-based authentication, and secure service design
Strong debugging and telemetry skills: logs, traces, metrics, and real-time alerting

YOUR TEAM:

At On, we don’t just create tools—we craft experiences that move the world. As part of our Retail Experience team, you’ll help

build the future of in-store technology. Your code will connect people with performance, power a seamless omnichannel journey, and

support a mission that’s bigger than any one screen: to ignite the human spirit through movement. Ready to help us redefine

retail? Lace up. Let’s go.

What We Offer

At On, we are a team of explorers, dreamers, and innovators. We live and breathe our mission to ignite the human spirit through

movement. We offer a dynamic, fast-paced, and collaborative environment where you can make a real impact. You'll be surrounded by

passionate and talented colleagues, with plenty of opportunities for professional growth and development.

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.

Roll

Lead Backend Engineer – POS Platforms Integration

Kategori

Data/IT

Plats

London, Storbritannien

Publicerad

14 juli

Sista ansökningsdag

16 augusti

Källa

Arbetsgivarens hemsida

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