Senior Experience Engineer – FTC

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. Own a product surface such as the portal domain, demo platform, or SDK, including product decision rights .

Posted 10/6/2026contractLondon • United KingdomSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in product ownership, including managing product surfaces and platforms, while ensuring high standards in performance, accessibility, and security. Proficient in full-stack development with a focus on TypeScript, React, and API design, alongside a strong testing strategy and mentorship capabilities.

Highest-signal resume keywords

Product OwnershipFull-Stack DevelopmentAPI DesignTesting StrategyMentorship

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

JavaScriptTypeScriptReactNode.jsSystem DesignArchitectureGitLab CI/CDTerraformHelmAI-Native Working

Soft Skills

Product JudgementTeam Standards Raising

Tools & Technologies

GitOpsAPI ContractsTesting FrameworksPackage ManagerComponent Library

Industry Keywords

FraudIdentityAuthenticationRegulated Industry

Tech Stack

Tools & technologies

JavaJavaScriptNode.jsReactTerraformTypeScript

About the role

Key responsibilities & impact

Own a product surface such as the portal domain, demo platform, or SDK, including product decision rights
Decide what ships and how it works within Product direction
Translate briefs into MVPs and phases, define success measures, and reshape or stop ineffective work
Maintain a live measurement baseline covering adoption, task success, and performance
Propose future work based on user and client contact and product conviction
Ship client-facing work without design review
Set the technical standard for the engineering estate
Lead responses to performance, accessibility, and security findings
Own services and delivery machinery end-to-end, including GitLab pipelines, charts, GitOps, and infrastructure
Design durable API contracts
Execute cross-repository decommissions and migrations safely across team boundaries
Lead design reviews for the product surface
Own testing strategy and release regression cycles; reduce test flakiness to zero
Own platform programmes including package-manager, framework, test-framework, and runtime migrations
Translate roadmaps into executable epics
Mentor junior team members

Requirements

What you’ll need

The candidate will already need to hold the right to work in the UK
Solid JavaScript/TypeScript and React
Comfort somewhere beyond the frontend: an API, a service, or infrastructure
System design and architecture, designing features that span frontend, service and configuration
Evidence of AI-native working with stated verification
A testing instinct: you can design a test approach and defend it
Has owned a product surface or platform programme including its worst weeks
Can architect a frontend estate live (state, contracts, testing, deployment)
Evidence of raising a team's standards
Demonstrable product judgement
Ship across the stack: TypeScript/React frontends, Node services (with some Java in the portal estate), API contracts, GitLab CI/CD, and deployment via Helm, GitOps and Terraform
Treat accessibility, performance, and security as engineering concerns
Build with AI as a core part of your workflow, with verification discipline
Learn the domain of fraud, identity, authentication, and clients' operational world
Write meaningful tests for everything shipped
Nice to have: Java in production; design systems or component library work; SDK or library engineering; data visualisation; regulated-industry experience

Benefits

Comp & perks

Pension scheme with Scottish Widows
Private medical cover with Vitality
Life assurance (4x base salary)
Personal Learning & Development Budget
Cycle to Work Scheme
Company Family Leave
25 days annual leave plus Callsign Bank Holiday
Employee Volunteering Program