Senior JavaScript Engineer

Staffworx Limited; Hounslow; Hybrid; GBP 83,000 - 138,000; Full time

Job summary

A tech talent partner seeks a Mid-Senior Full Stack JS Software Engineer to design GraphQL APIs and TypeScript services. The role involves working in an Agile environment, mentoring junior engineers, and shaping cloud-native infrastructure. The position is hybrid, based in West London, with a focus on security and performance. Ideal candidates will have strong hands-on experience with TypeScript, Node.js, Docker, and GraphQL.

Qualifications

• Strong production experience with TypeScript and Node.js.
• Solid understanding of GraphQL (schema design, integration, evolution).
• Experience with Vitest and Playwright.
• Knowledge of cloud-native architectures & infrastructure-as-code.
• Track record of improving codebases and influencing technical direction.

Responsibilities

• Designing TypeScript/Node.js services and GraphQL APIs.
• Writing clean, maintainable, well-tested code.
• Shaping infrastructure with Docker, Helm, and Kubernetes.
• Driving technical direction within Agile teams.
• Ensuring systems are secure, observable, and performant.

Skills

TypeScript

Node.js

GraphQL

DevOps tooling

Docker

Kubernetes

CI/CD

Tools

Docker

Helm

Kubernetes

Jenkins

Concourse

Vitest

Playwright

AWS

Job description

Overview

Hiring: Full Stack JS Software Engineer (GraphQL APIs | TypeScript | Cloud-Native)

Expert level in GraphQL

West London HQ | Hybrid (1–2 days on site) | Outside IR35 | 6-month initial contract (extensions likely)

Responsibilities

• Designing & TypeScript/Node.js services and GraphQL APIs for real-world applications.
• Writing clean, maintainable, well-tested code.
• Shaping infrastructure with Docker, Helm, Kubernetes, and modern CI/CD pipelines (Jenkins, Concourse).
• Driving technical direction within Agile teams and mentoring junior engineers.
• Ensuring systems are secure, observable, and performant at scale.

What you bring

• Strong production experience with TypeScript and Node.js.
• Solid understanding of GraphQL (schema design, integration, evolution).
• Experience with Vitest, Playwright, and DevOps tooling.
• Knowledge of cloud-native architectures & infrastructure-as-code.
• Track record of improving codebases and influencing technical direction.

Nice to have

• YAML/Helm expertise or large-scale SaaS platform experience.

Application

If this sounds like you, send your CV, day rate, and availability to [e-mail]

Start

ASAP

Rate

Market rates

Eligibility

UK-based, able to be on site 1–2 days/week in West London.

Tags

#fullstack #fullstackjobs #graphQL #nodejs #awslambda #serverless #typescriptjobs #staffworx #talentpartner #hiring #contractjobs

Seniority level

• Mid-Senior level

Employment type

• Contract

Job function

• Engineering, Information Technology, and Analyst

Industries

• IT Services and IT Consulting, IT System Custom Software Development, and Technology, Information and Media