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 backend services. Proficient in implementing front-end security measures and collaborating with cross-functional teams to enhance user experience and modernize legacy systems.

Highest-signal resume keywords

ReactJS Application DevelopmentTypeScript ProficiencyWebSocket IntegrationREST API DesignCI/CD Pipeline Collaboration

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

ReactJSTypeScriptJavaScriptWebSocketREST APIJestVitestNpmViteJava

Soft Skills

MentoringCollaborationCode Review

Tools & Technologies

GitHub ActionsGitAI Coding AssistantsOpenAPISwagger

Industry Keywords

Financial ServicesTradingSettlementOperations MonitoringAWS

Tech Stack

Tools & technologies

AWSCitrixGWTJavaJavaScriptJestKafkaReactSpringSpring 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 including large grids, virtualised lists, filtering, dashboards and live status views
Design reusable component libraries, state management and accessible, consistent UI patterns
Write clean JavaScript and strongly typed TypeScript while maintaining type-safe API contracts
Understand and change Java backend code
Integrate front ends with server-side services over REST APIs, WebSockets and Server-Sent Events
Handle authentication, pagination, caching, retries, error handling, reconnections, heartbeats, back-pressure, message ordering and subscriptions
Choose appropriate REST, WebSocket or SSE patterns with back-end engineers
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 optimization
Collaborate with DevOps on Harness/GitHub Actions CI/CD pipelines
Write unit, component and end-to-end tests and use mock servers for REST, WebSocket and SSE testing
Implement 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
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 in ReactJS hooks, context, component design, performance tuning and state management
Strong TypeScript knowledge, including generics and typed API contracts
Strong modern JavaScript knowledge, including async patterns
Practical experience with npm, pnpm and Vite, including migrating from Webpack or similar
Strong experience building and supporting production WebSocket integrations, including reconnection and state recovery
Practical experience using Server-Sent Events/EventSource for streaming updates
Strong experience consuming and designing REST API contracts with server-side services, including OpenAPI/Swagger
Decent Java knowledge
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
Preferred: Working knowledge of Java/Spring Boot back ends
Preferred: Experience with Kafka-backed real-time UIs or streaming gateways
Preferred: Experience replacing legacy UIs such as GWT, PowerBuilder or desktop/Citrix applications
Preferred: Experience in financial services, ideally trading, settlement or operations monitoring
Preferred: Familiarity with AWS front-end hosting, including S3/CloudFront and API Gateway WebSockets

Benefits

Comp & perks

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