Senior Full Stack Engineer (Backend-leaning, eCommerce)

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About The Role
We are seeking an experienced and passionate Senior Full Stack Engineer with a strong backend focus to join our growing eCommerce team. In this role, you will be a key technical leader, responsible for designing, building, and scaling the complex systems that power our online retail experience. You will take ownership of high-impact projects, from intricate Shopify integrations to the core backend services that handle payments, logistics, and personalization.
This is a fantastic opportunity for a seasoned engineer who enjoys working across the stack but finds their passion in creating robust, scalable backend architecture and data models.
What You'll Do
Lead the design and implementation of high-impact engineering projects across the full stack, with a primary focus on backend business logic, API development, and data modelling. Own and scale our complex Shopify integrations, moving beyond simple theme customizations to architecting sophisticated data workflows and API orchestrations that connect our core business systems. Architect and build performant, reliable, and scalable backend systems using TypeScript and AWS, powering everything from payment processing and returns management to customer personalization engines. Collaborate closely with cross-functional partners in product, design, and operations to rapidly deliver and iterate on new features, ensuring technical excellence and alignment with business goals. Champion developer productivity by embracing automation, refining CI/CD pipelines, and integrating AI-powered tooling into our development lifecycle.
Required Skills & Qualifications
Extensive professional experience in backend development, with a proven track record of building and maintaining scalable, production-grade systems. Deep expertise in TypeScript and Node.js for backend development. Strong proficiency with relational databases (RDBMS) like PostgreSQL or MySQL, including data modelling and query optimization. Hands-on experience with cloud infrastructure, specifically AWS (e.g., Lambda, EC2, S3, RDS). Demonstrable experience integrating with complex third-party APIs, particularly in an eCommerce context (e.g., payment gateways, fraud detection). Familiarity with at least one modern frontend framework (e.g., React, Vue, Angular).
Nice-to-Have Qualifications
Advanced experience with the Shopify API ecosystem (Admin API, Storefront API, webhooks). Experience with other programming such as Python or Ruby, especially for data-oriented tasks. Knowledge of graph databases like Neo4j. A strong understanding of DevOps principles and experience with infrastructure-as-code (e.g., Terraform, CloudFormation).
PandoLogic. Keywords: Full Stack Engineer, Location: London, ENG - SE25 5PY
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Location:
London
Job Type:
FullTime
Category:
Engineer, Senior, Engineering

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