About the job

We are

At Synechron, we believe in the power of digital to transform businesses for the better. Our global consulting firm combines creativity and innovative technology to deliver industry-leading digital solutions. Synechron’s progressive technologies and optimization strategies span end-to-end Artificial Intelligence, Consulting, Digital, Cloud & DevOps, Data, and Software Engineering, servicing an array of noteworthy financial services and technology firms. With top clients to boast about, Synechron has a global workforce of 14,500+, and has 58 offices in 21 countries within key global markets.

About the Role

We are looking for a Senior React Developer with deep expertise in React, TypeScript, and AWS cloud integration. You will lead frontend architecture, build complex user-facing applications, guide engineers, and drive performance, scalability, and security across the platform. This role is perfect for someone who enjoys solving high-impact technical challenges and influencing engineering direction.

Key Responsibilities

Technical Ownership

• Architect, develop, and maintain complex React applications using TypeScript, modern component patterns, hooks, context APIs, and scalable folder structures.
• Design and optimize frontend integrations with AWS services such as Cognito, API Gateway, Lambda, S3, CloudFront, CloudWatch, SNS/SQS, and optionally Amplify.
• Lead the adoption of best practices for performance (Core Web Vitals), accessibility (WCAG 2.1 AA), testing, and security.

Engineering Leadership

• Mentor and guide junior/mid-level engineers; conduct high-quality code reviews.
• Shape frontend standards, patterns, reusable components, and design system improvements.
• Collaborate with backend, DevOps, and product to influence technical strategy, API contracts, and architecture decisions.

Quality, Testing & Performance

• Implement strong unit, integration, and end-to-end test coverage using Jest, React Testing Library, and Cypress/Playwright.
• Own performance optimization: code splitting, lazy loading, caching, bundling strategies, Lighthouse audits.
• Drive observability with CloudWatch dashboards, logging, metrics, and error reporting tools (Sentry/Datadog/New Relic).

Security & Reliability

• Ensure OWASP-compliant frontend security, safe token handling, CSP, and secure communication with AWS services.
• Review threat models for frontend workflows and suggest improvements.

Delivery & Collaboration

• Lead medium- to large-scale features end-to-end from design to deployment.
• Work with Product, Design, and QA to define requirements, technical feasibility, and release plans.
• Contribute to CI/CD improvements (GitHub Actions, AWS CodePipeline).

Required Qualifications

• 8+ years hands-on experience with React and JavaScript/TypeScript in production.
• Strong understanding of React architecture, hooks, component composition, rendering optimization, and patterns like container/presentational, HOCs, context, and custom hooks.
• Experience building and deploying frontends on AWS (S3 + CloudFront required; Cognito/API Gateway/AWS Amplify preferred).
• Experience with modern state management: Redux Toolkit, Redux .
• Solid background in frontend performance profiling and debugging.
• Strong knowledge of accessibility, responsive design, and UI performance.
• Expertise in testing frameworks (Jest, RTL, Cypress, Playwright).
• Strong Git, branching strategy, CI/CD exposure.

SYNECHRON’S DIVERSITY & INCLUSION STATEMENT

Diversity & Inclusion are fundamental to our culture, and Synechron is proud to be an equal opportunity workplace and is an affirmative action employer. Our Diversity, Equity, and Inclusion (DEI) initiative ‘Same Difference’ is committed to fostering an inclusive culture – promoting equality, diversity and an environment that is respectful to all. We strongly believe that a diverse workforce helps build stronger, successful businesses as a global company. We encourage applicants from across diverse backgrounds, race, ethnicities, religion, age, marital status, gender, sexual orientations, or disabilities to apply. We empower our global workforce by offering flexible workplace arrangements, mentoring, internal mobility, learning and development programs, and more.

All employment decisions at Synechron are based on business needs, job requirements and individual qualifications, without regard to the applicant’s gender, gender identity, sexual orientation, race, ethnicity, disabled or veteran status, or any other characteristic protected by law.

If you like wild growth and working with happy, enthusiastic over-achievers, you'll enjoy your career with us!