Senior Backend Engineer for Scalable E-commerce Systems

Worky; Greater London; On-site; GBP 90,000 - 130,000; Full time

Job summary

On seeks a Senior Backend Engineer to design, build, deploy, test and operate our digital services. Based in London, you will collaborate with cross-functional teams to scale our online business, including e-commerce platforms and partner portals.

You will own core backend components, ensure performance and reliability, and contribute to a dynamic, growth-focused environment. You will work with NestJS, TypeScript, GraphQL, PostgreSQL, and cloud-native tools in a RESTful/GraphQL stack, promoting

Qualifications

• Strong backend development background with shipping high-quality software.
• Proficiency in Node.js and TypeScript, with deep understanding of modern backend frameworks.
• Hands-on experience with NestJS and GraphQL APIs.
• Solid experience with PostgreSQL and data modeling.
• Experience with cloud platforms (GCP) and containerization (Docker, Kubernetes).
• Familiarity with microservices architecture and scalable systems.
• Collaborative, agile team player with good communication skills.

Responsibilities

• Design, develop, and maintain robust backend services using NestJS, TypeScript, GraphQL.
• Own key components within the Commercial cluster to serve web, mobile, and partner integrations.
• Collaborate with frontend, product, and other stakeholders to deliver end-to-end features.
• Apply agentic engineering practices and leverage AI in daily workflows.
• Deploy and operate services in a cloud-native GCP environment with Kubernetes and Docker.
• Contribute to resilient distributed systems capable of handling growth.

Skills

Node.js

TypeScript

NestJS

GraphQL

PostgreSQL

GCP

Docker

Kubernetes

Microservices

Agile methodologies

Tools

MikroORM

Kafka

Job description

On seeks a Senior Backend Engineer to design, build, deploy, test and operate our digital services. Based in London, you will collaborate with cross-functional teams to scale our online business, including e-commerce platforms and partner portals.

You will own core backend components, ensure performance and reliability, and contribute to a dynamic, growth-focused environment. You will work with NestJS, TypeScript, GraphQL, PostgreSQL, and cloud-native tools in a RESTful/GraphQL stack, promoting