Hackajob Ltd

Hackajob Ltd

Charing Cross, London

UI Senior Lead Software Engineer

Full-Time£100,000 - 100,000 per yearyesterdayUnited Kingdom
IT

Job Description

Salary: £100,000 - 100,000 per year

Requirements:
  • We need hands-on experience building production UIs with React and TypeScript in large-scale applications.
  • We need strong knowledge of modern front-end engineering, including state management, asynchronous data flows, and UI architecture.
  • We need expertise in performance optimization, testing strategies, and automation in CI/CD pipelines.
  • We need experience delivering real-time or data-intensive user experiences.
  • We need demonstrated technical leadership in setting standards, leading designs, and directly managing or mentoring small teams of mid-level engineers.
  • We need solid software engineering fundamentals, including OO/design patterns, debugging, and documentation.
  • We need familiarity with agentic development approaches across the software development lifecycle.
  • We need strong communication and people skills, with the ability to work effectively in global, cross-functional environments while supporting the day-to-day development and growth of direct reports.
  • We need the ability to tackle design and functionality problems independently.
  • We need demonstrated experience leading effective use of approved AI-assisted software development tools, with the ability to set team expectations for validating AI outputs for correctness, performance, and security.
  • We need a strong understanding of responsible AI use in engineering workflows, including data sensitivity considerations, secure handling of inputs and outputs, and adherence to resiliency and security expectations.
  • Preferred: experience in front-office trading or electronic execution domains.
  • Preferred: familiarity with financial market concepts and protocols.
  • Preferred: experience with UI component libraries, advanced data grid patterns, and visualization.
  • Preferred: exposure to backend-for-frontend patterns, event-driven architectures, and API design collaboration.
  • Preferred: experience operating UIs in regulated environments with strong auditability and controls.
Responsibilities:
  • We lead the design and delivery of user interface capabilities across Execute, from discovery to production support.
  • We set front-end technical direction, including architecture, standards, performance, and testing strategy.
  • We partner with product, business stakeholders, and designers to translate trading workflows into intuitive UX.
  • We drive quality through thorough testing, troubleshooting, and performance optimization.
  • We build high-performance, real-time UIs with strong responsiveness and stability.
  • We establish and evolve scalable UI architecture, including component libraries and shared platform services.
  • We drive engineering excellence through code reviews, quality gates, CI/CD, observability, and operational readiness.
  • We ensure secure, compliant development practices aligned to firm standards.
  • We directly manage and mentor a small team of mid-level engineers, providing technical guidance, career development support, and day-to-day coaching to cultivate an inclusive, high-performing team culture.
  • We collaborate with backend, platform, and SRE partners to deliver end-to-end solutions.
  • We drive team adoption of enterprise-authorized AI-assisted engineering practices within the work environment to improve code quality, delivery speed, and operational outcomes, while establishing consistent validation standards and promoting reuse of effective patterns across the team.
  • We apply knowledge of tools within the Software Development Life Cycle toolchain, including enterprise-authorized AI-assisted development and automation capabilities, to improve the value realized by automation.
Technologies:
  • AI
  • API
  • Backend
  • CI/CD
  • Frontend
  • Support
  • React
  • Security
  • TypeScript
  • UX UI Design

More:

We are J.P. Morgan, a global leader in financial services, providing strategic advice and products to corporations, governments, wealthy individuals, and institutional investors. Our Commercial & Investment Bank is a global leader across banking, markets, securities services, and payments, serving clients in more than 100 countries. We value diversity and inclusion, offer reasonable accommodations where needed, and operate with a first-class business in a first-class way approach. This role sits within Digital Markets Execution Technology (DMET), helping shape Execute, our front-office trading platform for Markets businesses.

last updated 39 week of 2026

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About Hackajob Ltd

Hackajob Ltd

Hackajob Ltd

Charing Cross

IT

Skills & Technologies

TypeScriptGoScalaReactGitCI/CDAISREUXUI

Inferred from job description

Salary Insight

£100,000

This role

£75,000

UK median

This salary is 33% above the UK median for Senior roles (£75,000/yr).

Based on 2024–2025 UK technology sector benchmarks

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