UI Software Engineer III React

JPMorgan Chase & Co.; Glasgow; On-site; GBP 55,000 - 75,000; Full time

Job summary

A leading global financial services firm in Glasgow is seeking a UI Software Engineer III to design and deliver Micro UI components. The candidate will work with an agile team, integrating REST APIs and ensuring high-performance and accessible user experiences. Ideal for those with strong JavaScript/TypeScript skills and experience in microservices environments. This role promotes diversity and encourages involvement in software engineering communities, while offering a chance to work on innovative technology products.

Qualifications

• Hands-on experience in application development and operational stability.
• Proficient in coding in modern JavaScript and TypeScript.
• Experience in large corporate environments and modern programming languages.

Responsibilities

• Design and deliver Micro UI components for user experience.
• Integrate REST APIs and contribute to UI architecture.
• Optimize performance, accessibility, and code hygiene.

Skills

React

TypeScript

JavaScript

REST APIs

Microservices

Agile methodologies

CI/CD

Debugging

Education

Formal training in software engineering

Tools

Bitbucket

Jest

Sonar

React Testing Library

Job description

Overview

We have an exciting and rewarding opportunity for you to take your software engineering career to the next level.

As a UI Software Engineer III at JPMorganChase within Corporate Technology, you serve as a seasoned member of an agile team to design and deliver trusted market-leading technology products in a secure, stable, and scalable way. You are responsible for carrying out critical technology solutions across multiple technical areas within various business functions in support of the firm’s business objectives.

Responsibilities

• Design and deliver Micro UI components in React/TypeScript for FRAME 2.0’s user experience plane, including Data Discovery, Feature Discovery, Data Access, User Onboarding, and CI/CD Experience.
• Integrate REST APIs from Java and Python microservices; contribute to UI‑side architecture and shared libraries (module federation, design tokens, shared components).
• Produce architecture and design artifacts for complex applications; ensure design constraints are met in software implementation.
• Own front‑end performance, accessibility (WCAG), secure coding hygiene, telemetry, and error handling; instrument UIs for FRAME Observability dashboards.
• Gather, analyse, and synthesise insights from usage and operational data to drive continuous improvement of user interfaces and system integrations.
• Improve developer experience via CI/CD and testing: Bitbucket/Jules pipelines, automated unit/integration tests (Jest, React Testing Library), and static analysis (SSAP, Sonar).
• Participate in design discussions, code reviews, and agile ceremonies; collaborate closely with back‑end engineers and SRE to harden releases.
• Proactively identify hidden problems and patterns in data/code to drive refactoring and architectural improvements.
• Contribute to software engineering communities of practice and events that explore new and emerging technologies.
• Add to team culture of diversity, opportunity, inclusion, and respect.

Required qualifications, capabilities, and skills

• Formal training or certification on software engineering concepts and expanding applied experience.
• Hands‑on practical experience in system design, application development, testing, and operational stability.
• Proficient in coding in one or more languages, including modern JavaScript/TypeScript for web applications.
• Experience developing, debugging, and maintaining code in a large corporate environment with one or more modern programming languages and database querying languages.
• Experience building React applications with modern state management and routing, consuming REST/GraphQL APIs in a microservices environment.
• Overall knowledge of the Software Development Life Cycle.
• Solid understanding of agile methodologies such as CI/CD, Application Resiliency, and Security.
• Demonstrated knowledge of software applications and technical processes within a technical discipline (e.g., cloud, analytics/modeling platforms, mobile, etc.).

Preferred qualifications, capabilities, and skills

• Deep familiarity with modern front‑end technologies: React hooks, TypeScript, component design, state management (Redux, Zustand, or Context), and microfrontend patterns (e.g., module federation).
• Exposure to Databricks and JET ecosystems; understanding of MLflow artifacts and integrating UI with model execution and audit dashboards.
• Experience with CI/CD and source control (Bitbucket or similar), automated testing (Jest/React Testing Library), and static code analysis tools (SSAP, Sonar).
• Familiarity with governance and entitlements workflows (LUMA, MRGR, MyAccess/IDAnywhere) and data catalog integrations (Data Compass).
• Exposure to cloud technologies.

FRAME is a microservice-based platform that wraps Databricks and JET, providing intuitive, self-service analytics and modelling tools. The application streamlines model development and deployment for modelers, data scientists, and technologists. Key features include persona-based blueprints, automated source control, JPMorgan tollgate automation (ServiceNow, JET evidence, unit testing), model execution and monitoring, observability, governance integration (LUMA), and enriched finops. The goal is to reduce friction in analytics workflows and lower dependency on technology teams.