Full job descriptionBack End Developer (Node.js)


Senior Software Engineer – Pricing & Inventory (Node/TypeScript)
Contract: 6 months initially
Rate: Up to £420 per day, Outside IR35
Location: Can be worked fully remote
We’re supporting a high-traffic global e-commerce platform in its search for a Senior Software Engineer to improve its pricing, inventory and availability systems.
This is a hands-on role focused on building reliable, scalable services that process millions of customer searches across multiple international markets.
What you’ll be working on
*Building and improving pricing, inventory and availability services
*Developing quote-caching and data freshness strategies
*Designing resilient APIs and third-party integrations
*Reducing latency and improving platform performance
*Balancing pricing accuracy with cache efficiency and infrastructure cost
*Improving monitoring, tracing and production observability
*Owning solutions from investigation through to deployment
Essential experience
*Strong commercial experience with Node.js and TypeScript
*Experience building pricing, inventory or availability systems
*Background in a high-traffic e-commerce, marketplace or travel platform
*Strong understanding of caching, data freshness and cache invalidation
*Experience designing reliable APIs using retries, timeouts, idempotency and backpressure
*Good SQL knowledge
*Experience integrating unreliable or poorly documented third-party APIs
*Strong production ownership across testing, CI/CD, deployment and monitoring
*Regular use of AI coding tools or LLM-based development tools
Nice to have
*C#/.NET or Python
*Cloud platforms and Terraform
*Datadog, distributed tracing, profiling or flame graphs
*Dynamic pricing, edge technologies or travel-sector experience
This role would suit an experienced engineer who is comfortable owning complex pricing and inventory problems in a high-volume transactional environment.