Lead UI Developer – Single Dealer Platform (TypeScript / RxJS / React)

📍 Job Overview

Job Title: Lead UI Developer – Single Dealer Platform (TypeScript / RxJS / React)

Company: Bank of America

Location: Bromley, United Kingdom

Job Type: Full time

Category: Technology / Engineering (Front-End Development)

Date Posted: 2026-08-03T00:00:00

Experience Level: 5-10 years (Senior/Lead)

Remote Status: Hybrid

🚀 Role Summary

• Drive the front-end architecture, delivery, and quality of a critical Single Dealer Platform used by global Sales, Trading, and institutional clients.

• Own and evolve the React/TypeScript codebase, implementing reactive programming best practices with RxJS for low-latency, event-driven UI features.

• Develop real-time trading capabilities including market data, pricing, RFQ (Request for Quote), order entry, and trade capture.

• Collaborate closely with product, UX, and server-side engineering teams to deliver performant, resilient, and accessible interfaces within a regulated financial environment.

• Champion best practices in performance engineering, resilience, automated testing, and front-end security.

📝 Enhancement Note: This role is a senior/lead position focused on front-end development within a high-stakes financial trading environment. The emphasis on "Single Dealer Platform," "low-latency," "real-time market data," and "institutional clients" clearly places this within the domain of financial technology (FinTech) front-end engineering, requiring deep expertise in modern JavaScript frameworks, reactive programming, and performance optimization for demanding applications. The "Corporate Title: Up to VP" indicates significant responsibility and potential for career progression within Bank of America's technology division.

📈 Primary Responsibilities

• Lead the UI roadmap, define coding standards, and conduct code reviews for the Single Dealer Platform (SDP), ensuring architectural integrity and developer consistency.

• Partner with product owners and UX designers to translate complex business requirements into pragmatic, iterative delivery plans for front-end features.

• Architect and manage the front-end state management, observable patterns, and data flow for live market data streams (WebSockets/Server Sent Events) and request/response APIs.

• Design, develop, and implement modular, testable, and reusable UI components and design system primitives, ensuring adherence to accessibility standards (WCAG 2.1 AA+).

• Drive performance engineering initiatives, including rendering optimization, virtualization for large datasets (grids/blotters), memoization, and leveraging React's Concurrent features for enhanced user experience.

• Champion resilience patterns within the UI layer, such as graceful degradation, offline/slow network fallbacks, robust error handling for streaming and REST APIs, and implementing circuit breaker patterns at the edge.

• Enforce comprehensive automated testing strategies, including unit, integration, and end-to-end (E2E) UI tests, integrated within a CI/CD pipeline with defined quality gates.

• Implement front-end observability through analytics, logging, and performance monitoring tools (e.g., Web Vitals, error tracking) to ensure application health and user experience.

• Ensure adherence to secure front-end development practices, including protection against XSS/CSRF, Content Security Policy (CSP) implementation, secure secrets handling, and robust authentication flows using OAuth/OIDC/JWT.

📝 Enhancement Note: The primary responsibilities highlight a hands-on leadership role. The emphasis on "roadmap," "architecture decisions," "coding standards," and "code reviews" points to a Lead Developer or Architect capacity. The detailed responsibilities around "state management," "observables," "data flow," "performance engineering," "resilience," and "security" are critical for financial trading platforms where reliability, speed, and data integrity are paramount.

🎓 Skills & Qualifications

Education: Bachelor's degree in Computer Science, Engineering, or a related field, or equivalent practical experience.

Experience:

• Minimum of 5-10 years of professional experience in building sophisticated web applications.

• At least 3+ years of experience in a senior or lead UI development role, demonstrating leadership in architectural decisions and team guidance. Required Skills:

• TypeScript: Deep expertise in TypeScript for building robust, scalable, and maintainable front-end applications.

• React: Extensive experience with React, including hooks, context API, and component lifecycle management.

• RxJS: Strong proficiency in RxJS (or equivalent observable libraries) and applying reactive programming principles to complex, real-time systems.

• High-Performance Data Streaming: Proven experience with WebSockets, Server-Sent Events (SSE), WebRTC, or other high-performance bidirectional data streaming technologies.

• State Management: In-depth knowledge of state management patterns for streaming and request/response architectures, including RxJS, React Query, and custom stream-based solutions.

• Performance Engineering: Demonstrated ability in performance optimization techniques for web applications, including rendering optimization, data virtualization, and efficient data handling.

• Accessibility: Solid understanding and practical application of accessibility standards (WCAG 2.1 AA+) in UI design and development.

• Automated Testing: Proficiency with testing frameworks such as Jest, Vitest, React Testing Library, and Playwright; strong experience in unit, integration, and E2E testing, including mock and contract testing.

• Security Fundamentals: Knowledge of front-end security best practices, including XSS/CSRF mitigation, CSP, secure authentication flows (OAuth, OIDC, JWT), and secrets management.

• CI/CD: Experience with Continuous Integration and Continuous Deployment pipelines, including feature flagging and deployment in regulated environments.

• Communication & Collaboration: Excellent verbal and written communication skills, with the ability to effectively drive consensus and collaborate across engineering, product management, and business stakeholders (trading desks).

Preferred Skills:

• GraphQL, Protobuf, Flatbuffers: Experience with schema-driven API design tools and protocols.

• Capital Markets Domain Knowledge: Familiarity with financial markets such as FX, Rates, Credit, Equities, or Commodities, including pricing conventions, market structures, RFQ lifecycles, Order Management Systems (OMS), Execution Management Systems (EMS), and Straight-Through Processing (STP).

• Micro Frontends: Experience with micro-frontend architectures (e.g., Module Federation, single-spa) and managing shared design systems across multiple development teams.

• Data-Heavy UIs: Expertise with advanced grid ecosystems (e.g., AG Grid) and implementing complex filtering, pinning, and pivoting functionalities.

• NPM Package Management: Experience in publishing and maintaining reusable NPM packages.

📝 Enhancement Note: The qualifications clearly emphasize a senior-level full-stack JavaScript developer with a specialization in front-end architecture for demanding, real-time applications. The inclusion of specific financial domain knowledge and experience with complex UI patterns like virtualization and micro-frontends indicates the need for a candidate who can not only code but also understand the business context and architectural challenges of a trading platform.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• Demonstrated Architectural Leadership: Showcase examples of leading UI architecture decisions, defining coding standards, and implementing best practices in previous roles. This could include architecture diagrams, design documents, or descriptions of how you influenced technical direction.

• Real-Time Data Visualization Case Studies: Present specific projects where you built UIs handling high-volume, real-time data streams (e.g., market data, live dashboards). Detail the technologies used (WebSockets, RxJS), the challenges faced (latency, data volume), and the solutions implemented.

• Performance Optimization Showcase: Include case studies that highlight your ability to diagnose and resolve performance bottlenecks in complex web applications. Quantify improvements achieved through techniques like rendering optimization, virtualization, or efficient state management.

• Accessibility & Resilience Examples: Provide examples of how you've incorporated accessibility standards (WCAG) and resilience patterns (e.g., graceful degradation, offline support) into your projects. Document the impact on user experience and system stability.

• Testing & CI/CD Integration: Demonstrate your approach to automated testing (unit, integration, E2E) and CI/CD implementation. This could include examples of test suites, pipeline configurations, or how quality gates were established and maintained.

Process Documentation:

• Workflow Design & Optimization: Detail your process for designing and optimizing user workflows within complex applications, especially those involving multiple steps or real-time feedback loops.

• System Implementation & Automation: Document your experience in implementing new UI systems or features, emphasizing how you integrated them with existing back-end services and automated deployment processes.

• Measurement & Performance Analysis: Explain your methodology for measuring the performance, reliability, and user satisfaction of front-end applications. This should include how you use analytics, logging, and observability tools to inform improvements.

📝 Enhancement Note: For a Lead UI Developer role, especially in a regulated industry like finance, a portfolio demonstrating not just coding skill but also architectural thinking, problem-solving for complex scenarios (real-time data, performance), and a commitment to quality (testing, accessibility, security) is essential. The emphasis on process documentation highlights the need for candidates who can articulate their methodologies and contribute to team-wide process improvements.

💵 Compensation & Benefits

Salary Range: Based on industry benchmarks for Lead UI Developers with 5-10 years of experience in London, and considering the seniority ("Up to VP" corporate title) and the specialized financial technology domain, a competitive salary range is estimated.

• Estimated Annual Salary: £90,000 - £130,000 GBP

• Potential for Bonuses: Performance-based bonuses may be applicable.

📝 Enhancement Note: This salary estimate is based on research for senior front-end developer roles in London, UK, factoring in the specialized skills (TypeScript, React, RxJS, WebSockets) and the financial services industry context. The "Up to VP" corporate title suggests the upper end of this range is achievable for highly experienced candidates. Salary will ultimately depend on the candidate's specific experience, qualifications, and interview performance.

Benefits:

• Comprehensive Health & Wellness:

  • Private healthcare coverage for the employee and family.
  • Annual health screening for physical wellness monitoring.
  • Access to virtual GP services.
  • Employee Assistance Program (EAP) providing free, confidential counseling and support.

• Financial Security & Planning:

  • Competitive pension plan.
  • Life assurance coverage.
  • Group income protection in case of disability or health-related inability to work.

• Family Support:

  • 26 weeks of paid maternity leave.
  • 16 weeks of paid paternity leave.
  • Inclusive family leave arrangements.
  • 20 days of back-up childcare per annum, including access to school holiday clubs.
  • 20 days of back-up adult care per annum.

• Flexible Benefits:

  • Ability to customize core benefits to suit personal circumstances.
  • Options for a wellbeing account.
  • Access to travel insurance.
  • Critical illness cover.
  • Cycle to work scheme.

• Community & Giving:

  • Opportunity to donate to charities of choice through payroll, with bank matching contributions.
  • Opportunities for volunteering in the local community.

• Professional & Cultural Enrichment:

  • Access to an Arts & Culture corporate membership program for discounted entry to cultural institutions. Working Hours:

• Standard full-time working hours are typically 40 hours per week.

• While the role is hybrid, specific office attendance requirements will be communicated by the hiring team. The company emphasizes a commitment to an in-office culture with flexibility based on role-specific considerations.

📝 Enhancement Note: The benefits package is extensive and highlights Bank of America's commitment to employee well-being, family support, and professional development, which are key differentiators in attracting and retaining talent in the competitive financial technology sector.

🎯 Team & Company Context

🏢 Company Culture

Industry: Financial Services / Banking Technology

Company Size: Large Enterprise (100,000+ employees globally)

Founded: 1998 (Bank of America)

Team Structure:

• Cross-functional Collaboration: The team is inherently cross-functional, comprising UI developers, server-side engineers, product managers, UX designers, quantitative analysts, and infrastructure specialists. This structure is vital for delivering complex trading platforms.

• Reporting Structure: The Lead UI Developer will likely report to a Head of Front-End Engineering or a similar technology management role within the trading technology division. The team operates within a larger technology organization at Bank of America.

• Global Reach: The Single Dealer Platform serves institutional clients globally, implying that the team's work has a significant international impact and requires consideration of different market conventions and user needs.

Methodology:

• Agile Development: The team likely operates under Agile methodologies (e.g., Scrum, Kanban) to facilitate iterative development, rapid feedback loops, and continuous delivery of features.

• Data-Driven Decisions: Emphasis on instrumenting analytics, logging, and front-end observability suggests a data-driven approach to understanding user behavior, identifying performance issues, and prioritizing development efforts.

• Quality & Resilience Focus: The explicit mention of performance engineering, resilience patterns, automated testing, and security underscores a commitment to building high-quality, robust applications suitable for critical financial operations.

Company Website: https://www.bankofamerica.com/

📝 Enhancement Note: Bank of America's status as a major global financial institution means its technology culture is likely characterized by a strong emphasis on stability, security, regulatory compliance, and performance, balanced with a drive for innovation in areas like FinTech. The size of the organization offers significant opportunities for career growth and exposure to diverse technologies and business lines.

📈 Career & Growth Analysis

Operations Career Level: Lead UI Developer / Senior Front-End Engineer

This role represents a significant step into technical leadership within the front-end engineering space. It requires not only deep technical expertise but also the ability to influence architectural direction, mentor junior developers, and bridge communication gaps between technical teams and business stakeholders. The "Up to VP" corporate title indicates a high level of trust and responsibility, positioning the individual for further advancement within the technology organization.

Reporting Structure:

The Lead UI Developer will report to a higher-level engineering manager or director, likely responsible for the overall front-end strategy for trading platforms. They will, in turn, lead and mentor a team of UI developers, guiding their technical work and professional development. Collaboration with product managers, UX designers, and server-side teams will be constant.

Operations Impact:

The work of the Lead UI Developer directly impacts the firm's ability to execute trades efficiently, manage risk, and provide a superior client experience. A high-performing, resilient, and intuitive trading platform is crucial for revenue generation, client retention, and maintaining a competitive edge in the financial markets. The developer's contributions are directly tied to the success of sales and trading desks and the satisfaction of institutional clients.

Growth Opportunities:

• Technical Specialization: Deepen expertise in advanced front-end architecture, performance optimization, real-time systems, or specific areas of FinTech.

• Architectural Leadership: Transition into a more formal Architect role, focusing on system-wide technical strategy and design across multiple platforms.

• Management Track: Progress into Engineering Management, leading larger teams, managing projects, and focusing on people development and strategic planning.

• Cross-Functional Mobility: Leverage FinTech expertise to move into related areas such as product management, technical program management, or specialized roles within trading desks or quantitative teams.

• Industry Influence: Contribute to open-source projects, speak at conferences, or publish technical articles, building a reputation within the broader FinTech community.

📝 Enhancement Note: The career path for a Lead UI Developer in a company like Bank of America is typically robust, offering clear avenues for both deep technical mastery and leadership progression. The emphasis on FinTech and trading platforms provides a specialized and high-impact career trajectory.

🌐 Work Environment

Office Type: Bank of America operates a formal corporate office environment. The Bromley office is described as "bustling" and well-connected, suggesting a professional yet dynamic workspace.

Office Location(s): Bromley, United Kingdom. The office is noted for its easy commuting routes and proximity to central London.

Workspace Context:

• Collaborative Environment: The team is described as "highly collaborative," indicating an open-plan or team-oriented workspace designed to facilitate interaction. Expect regular team meetings, stand-ups, and ad-hoc discussions.

• Technology & Tools: Access to modern development tools, high-performance workstations, and robust network infrastructure necessary for real-time financial applications. The company likely provides all required hardware and software licenses.

• Team Interaction: Opportunities for frequent interaction with fellow UI developers, server-side engineers, product managers, and potentially trading desk representatives, fostering a dynamic and communicative work atmosphere.

Work Schedule:

• The role is full-time, with standard working hours typically around 40 hours per week.

• The company promotes a hybrid work model, requiring office attendance but allowing for flexibility based on role and business needs. This means a balance between in-office collaboration and remote work.

📝 Enhancement Note: The hybrid nature of the role, combined with a strong emphasis on in-office culture for collaboration and productivity, is typical for large financial institutions. Candidates should expect a structured work environment that values both team synergy and individual focus.

📄 Application & Portfolio Review Process

Interview Process:

• Initial Screening: A recruiter or hiring manager will review your application and resume. Be sure to highlight relevant experience with TypeScript, React, RxJS, and financial trading systems.

• Technical Assessment: Expect one or more technical interviews focused on core JavaScript, TypeScript, React, and RxJS concepts. This may involve coding challenges, whiteboarding exercises, or in-depth discussions about past projects.

• System Design / Architectural Interview: A session dedicated to discussing system design principles, architectural decisions for complex UIs, performance optimization strategies, and handling real-time data.

• Portfolio Review: A dedicated meeting to present and discuss selected projects from your portfolio. Be prepared to articulate your role, technical challenges, solutions, and the impact of your work.

• Behavioral / Cultural Fit Interview: Questions designed to assess your leadership style, collaboration skills, problem-solving approach, and alignment with Bank of America's values and culture. This may involve senior stakeholders or hiring managers.

• Final Round: Potentially a discussion with senior leadership or a final confirmation interview.

Portfolio Review Tips:

• Curate Selectively: Choose 2-3 impactful projects that best showcase your lead UI development skills, particularly those involving real-time data, performance optimization, and complex state management.

• Structure Your Case Studies: For each project, clearly outline:

  • The problem statement or business need.
  • Your specific role and responsibilities.
  • The technical architecture and key technologies used (highlighting TypeScript, React, RxJS).
  • The challenges encountered (e.g., latency, data volume, integration).
  • The solutions you implemented and why.
  • Quantifiable results and impact (e.g., performance improvements, user adoption, efficiency gains).

• Demonstrate Architectural Thinking: Explain your design decisions, trade-offs considered, and how you ensured scalability, maintainability, and resilience.

• Showcase Leadership: Highlight instances where you mentored junior developers, defined standards, or led technical discussions.

• Prepare for Q&A: Anticipate questions about your code, design choices, and how you'd handle specific scenarios relevant to the SDP.

Challenge Preparation:

• Coding Challenges: Practice algorithms and data structures relevant to JavaScript/TypeScript. Focus on efficient solutions and clean code. Be ready for challenges involving asynchronous operations, data manipulation, and UI component logic.

• System Design Scenarios: Prepare to discuss how you would design a real-time dashboard, a trading blotter with virtualization, or a secure authentication flow. Focus on components, data flow, API design, and scalability.

• RxJS Scenarios: Be ready to explain observable patterns, error handling, operators, and how to manage complex asynchronous data streams effectively.

• Performance Optimization: Understand browser rendering processes, identify common performance bottlenecks, and be able to articulate strategies for optimization.

📝 Enhancement Note: The interview process for a lead role at a major financial institution like Bank of America will be rigorous. A strong portfolio that clearly demonstrates technical leadership, problem-solving capabilities, and a deep understanding of the required technologies is crucial for success. Preparing specific examples and being ready to articulate your thought process are key.

🛠 Tools & Technology Stack

Primary Tools:

• Front-End Framework: React

• Language: TypeScript

• Reactive Programming: RxJS

• State Management: RxJS-based solutions, React Query, custom streams

• Build Tools: Webpack, Vite (or similar modern bundlers)

• Testing Frameworks: Jest, Vitest, React Testing Library, Playwright

• Version Control: Git

• Package Management: NPM, Yarn

Analytics & Reporting:

• Performance Monitoring: Web Vitals, custom logging, potentially APM tools (e.g., Datadog, Dynatrace)

• Error Tracking: Sentry, Rollbar, or similar

• Analytics Platforms: Google Analytics, Adobe Analytics, or internal solutions

CRM & Automation:

• While not directly CRM-focused for this role, understanding