CareerPlan

Software Development Engineer in Test (SDET)

LondonFull-time£45k–£80k2026-11-07 → 2026-11-09
HybridNo visa sponsorship

Core

Design, build, and maintain automated testing infrastructure for a large-scale, real-time, distributed backend and React-based frontend.

Role type

SDET (Software Development Engineer in Test)

Builds

Automated test suites, test frameworks, and deployment tooling for a workflow automation platform.

Domain

SaaS / Workflow Automation / Cloud Infrastructure

Required skills

Node.js test automation, JavaScript/TypeScript testing frameworks (Jest, Mocha), Browser automation (WebdriverIO, Selenium, Cypress), Linux/Unix & Shell scripting, Git

Preferred skills

Continuous Integration tools (Jenkins, Travis), Docker, API testing and integrations

Technologies

JavaScript, TypeScript, WebdriverIO, Cucumber, Selenium, Jest, Docker, Jenkins

Responsibilities

Maintain and expand test frameworks and infrastructure; take ownership of product releases; develop test procedures and methodologies; integrate with engineering teams; contribute to product decisions; play a key role in deployment processes

Seniority

Mid-level, hands-on IC