Contract Role: Senior Ember.js Engineer Outside IR35 Fully Remote
East London, London, United Kingdom
Hybrid / WFH Options
Hybrid / WFH Options
Halian
months Start: 21st July 2025 Engagement: Outside IR35 5 Years ember experience required (Minimum requirement) The Opportunity A well-established financial services product business is looking for a Senior Ember.js Engineer to lead a critical upgrade project across its legacy Ember applications. These applications are part of a wider FX payments back-office platform, with components that have not been … updated in several versions and are now reliant on unsupported versions of Ember.js and Node.js. This is a focused engineering engagement. You’ll work within a mono-repo ecosystem, modernising the codebase, resolving dependencies, and ensuring successful delivery of a clean, stable, and production-ready upgrade. What is Required. Working closely with internal engineering leadership and DevOps support, you will … Upgrade Ember.js from ~v3.20.5 to Ember 6.x (Octane) . Upgrade Node.js to v20+ across all associated packages. Migrate and validate shared packages within a monorepo (Lerna/Yarn Workspaces). Run and maintain comprehensive test coverage (unit, integration, and UAT). Identify and deprecate outdated libraries and plugins. Optionally consolidate “common” and “domain-common” packages into a single repo (without More ❯
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