Front End Developer – Manager

State Street

. Design and build complex ReactJS/TypeScript applications for trade processing, reconciliation, settlement and operations monitoring .

Posted 10/31/2026full-timeBangalore • IndiaSeniorLeadWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in building complex ReactJS applications with TypeScript, focusing on performance optimization, state management, and integration with back-end services. Proficient in implementing robust testing strategies and maintaining front-end build processes while ensuring security and accessibility standards.

Highest-signal resume keywords

Expert ReactJS KnowledgeStrong TypeScript SkillsProduction WebSocket Integration ExperienceREST API Contract DesignTesting Experience with Jest/Vitest

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

ReactJSTypeScriptJavaScriptWebSocketREST APIsServer-Sent EventsJestGitCI/CDAgile Delivery

Soft Skills

MentoringCollaborationCode Review

Tools & Technologies

NpmPnpmViteGitHub CopilotClaude CodeDevin

Industry Keywords

Financial ServicesTradingSettlementOperations MonitoringJava/Spring Boot

Tech Stack

Tools & technologies

AWSJavaJavaScriptJestKafkaReactSpringSpring BootSpringBootTypeScriptWebpack

About the role

Key responsibilities & impact

Design and build complex ReactJS/TypeScript applications for trade processing, reconciliation, settlement and operations monitoring
Build high-performance, data-heavy UIs with large grids, virtualised lists, filtering, dashboards and live status views
Design reusable component libraries, state management and accessible, consistent UI patterns
Write modern JavaScript and strongly typed TypeScript with type-safe API contracts
Understand and change Java backend code
Integrate with server-side services over REST APIs, including authentication, pagination, caching, retries and error handling
Build robust WebSocket clients for two-way, low-latency updates
Implement SSE streams for one-way server push, including reconnection and event replay
Select appropriate REST, WebSocket or SSE patterns and collaborate with back-end engineers on message design and contracts
Optimize real-time screens under heavy update volumes using batched rendering, memoisation and throttling
Maintain front-end builds with npm/pnpm and Vite, including workspaces/monorepos, dependency management, environment configuration and bundle optimisation
Collaborate with DevOps on CI/CD pipelines for front-end build, test and deployment
Write unit, component and end-to-end tests and use mock servers for REST, WebSocket and SSE testing
Handle front-end security including SSO/MFA integration, token handling, XSS/CSRF protection and dependency vulnerability scanning
Use GitHub Copilot, Claude Code and/or Devin for component building, refactoring, test generation and legacy UI analysis
Review AI-generated code for correctness, accessibility, performance and security before merging
Set front-end standards, review code and mentor developers
Work with business analysts and users to modernize legacy screens and workflows
Support releases, cutovers and early-life support

Requirements

What you’ll need

8+ years in software development, with 5+ years building production ReactJS applications
Expert ReactJS knowledge including hooks, context, component design, performance tuning and state management
Strong TypeScript and modern JavaScript skills, including generics, typed API contracts and async patterns
Practical experience with npm, pnpm and Vite, including migrating from Webpack or similar
Strong production WebSocket integration experience, including reconnection and state recovery
Practical Server-Sent Events/EventSource experience
Strong experience consuming and designing REST API contracts with server-side services, including OpenAPI/Swagger
Decent Java knowledge
Testing experience with Jest/Vitest, React Testing Library and an end-to-end framework
Git, CI/CD and agile delivery experience
Regular professional use of AI coding assistants
Working knowledge of Java/Spring Boot back ends preferred
Experience with Kafka-backed real-time UIs or streaming gateways preferred
Experience replacing legacy UIs preferred
Financial services experience, ideally trading, settlement or operations monitoring, preferred
Familiarity with AWS front-end hosting preferred

Benefits

Comp & perks

Inclusive development opportunities
Flexible work-life support
Paid volunteer days
Vibrant employee networks