Senior Software Engineer

Senior Software Engineer

Full-Time No working from home possible
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At a Glance

  • Tasks: Enhance pricing and availability systems for a high-traffic global travel platform.
  • Company: Join a leading e-commerce platform with a focus on innovation.
  • Benefits: Competitive daily rate, remote work options, and a dynamic team environment.
  • Other info: Opportunity for career growth in a fast-paced, collaborative setting.
  • Why this job: Make a real impact on millions of customer searches while using cutting-edge technology.
  • Qualifications: Strong experience in TypeScript, Node.js, and e-commerce systems required.

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:

  • 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.

Senior Software Engineer employer: your Jared

Leidos UK & EUROPE is an exceptional employer that fosters a collaborative and innovative work culture, where your expertise as a Senior Cloud Solutions Architect will be valued and nurtured. With a strong focus on employee growth, we offer numerous opportunities for professional development and career advancement, all while working in a dynamic environment that prioritises security-driven solutions. Join us in a location that not only supports your career aspirations but also encourages a healthy work-life balance and a commitment to making a meaningful impact.

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Contact Details:

your Jared Recruitment Team

We think you need these skills to ace Senior Software Engineer

Node.js
React
C#/.NET
Python
TypeScript
SQL
API Design