SENIOR SOFTWARE ENGINEER

your Jared; Greater London; Hybrid; GBP 64,000 - 84,000; Full time

Job summary

your Jared is seeking a Senior Software Engineer to strengthen pricing and availability systems for a high‑traffic travel and e‑commerce platform. This hands‑on contract role focuses on performance, reliability and scalable architecture across global markets.

Key requirements include TypeScript/Node.js, C#/.NET or Python, and strong SQL. You’ll work on cache strategies, API reliability, and observability while collaborating with teams and using AI coding tools.

Qualifications

• Proven experience with high‑traffic pricing/availability systems.
• Strong TS/Node.js and either C#/.NET or Python proficiency.
• Solid SQL knowledge and API integration experience.

Responsibilities

• Build and improve pricing, quote-caching and availability services.
• Design resilient APIs and integration patterns.
• Address latency, performance and cost challenges.
• Balance pricing freshness with cache efficiency.
• Improve observability with monitoring and metrics.
• Collaborate with teams for third‑party integrations and booking systems.
• Utilize coding agents or LLMs in daily development workflow.

Skills

TypeScript

Node.js

C#/.NET

Python

SQL

API integration

LLM tools

Tools

Terraform

Datadog

Job description

Job Ref: 300054

Software

Software

Senior Software Engineer

Salary: 400 per day

Location: London - Remote

Job Type: Full Time

The Role:

Senior Software Engineer – Pricing & Availability (Node/React/.Net)

We’re supporting a high‑traffic global travel and e‑commerce platform in its search for a Senior Software Engineer to strengthen its pricing and availability systems.

This is a hands‑on contract role focused on improving the performance, reliability and scalability of a complex transactional platform processing millions of customer searches across multiple international markets.

Key Responsibilities:

What you’ll be working on:

• Building and improving pricing, quote-caching and availability services
• Designing resilient APIs and integration patterns
• Tackling latency, performance and infrastructure cost challenges
• Managing the trade‑off between pricing freshness and cache efficiency
• Improving observability through monitoring, tracing and meaningful metrics
• Working alongside teams responsible for third‑party integrations and booking systems
• Using AI coding tools as part of your day‑to‑day engineering workflow

What we’re looking for:

You’ll have strong experience building or maintaining pricing, inventory or availability systems within a high‑traffic e‑commerce, travel or marketplace environment.

You should also be comfortable discussing:

• Cache invalidation and data freshness
• API reliability, retries, timeouts, idempotency and backpressure
• Performance optimisation, including p95 latency improvements
• Distributed tracing, profiling and flame graphs
• Production ownership, including testing, CI/CD, deployment and monitoring

Key Requirements:

Technical experience:

• Strong TypeScript and Node.js skills
• Experience working with C#/.NET or Python
• Good SQL knowledge
• Experience integrating unreliable or poorly documented third‑party APIs
• Daily use of coding agents or LLM‑based development tools

Experience with cloud platforms, Terraform, edge technologies, Datadog, dynamic pricing or the travel sector would be advantageous.

This role would suit an experienced engineer who is comfortable owning complex problems from investigation through to production delivery.

Initial 6 months.

Outside IR35

to 400 per day

Based Brighton or London or Fully Remote available