Senior Fullstack Engineer (Java + React + AWS)
Confirmed on the employer's own hiring board on Nov 8, 2026. First seen by Alion on Nov 8, 2026.
What you’ll do
Design, develop, and maintain scalable, cloud-native frontend applications using React.js, TypeScript, React Native, and AWS, delivering high-performance client trading experiences.
Build and integrate secure, reliable backend services and APIs using AWS Lambda, API Gateway, and related cloud-native technologies.
Contribute to frontend architecture, performance optimization, and engineering best practices to ensure responsiveness, scalability, and resilience under real-time trading workloads.
Deploy, monitor, and operate applications on AWS using services such as S3, CloudFront, and serverless infrastructure, ensuring high availability and reliability in production.
Implement automated testing, participate in CI/CD pipelines, and drive improvements in code quality, maintainability, and deployment confidence.
Collaborate closely with product, platform, and backend teams to design, deliver, and continuously improve production-grade trading applications with full feature ownership.
What you’ll need for this role
Key Qualification Requirements:
8-10 years of frontend development experience with strong expertise in Java, Spring, microservice architecture, DynamoDB, lambdas, ECS containers, React.js, React Native, Next.js, Redux, and component-driven architecture
Minimum 3-4 years of hands-on experience designing, developing, and deploying cloud-native applications on AWS using services such as Lambda, API Gateway, S3, CloudFront, and related infrastructure.
Proficiency in using AI-assisted development tools to improve engineering productivity and efficiency.
Strong proficiency in TypeScript, JavaScript (ES6+), HTML5, CSS3, and modern frontend build tools such as Webpack, Babel, and Vite.
Mandatory experience building and deploying cloud-native applications on AWS (S3, CloudFront, Lambda, API Gateway, Amplify).
Experience with Progressive Web Apps (PWA), Service Workers, caching strategies, and frontend performance optimization.
Hands-on experience with unit testing (Jest, React Testing Library), TDD practices, and modern CI/CD pipelines.
Strong understanding of frontend architecture, RESTful APIs, browser internals, and delivering production-grade applications at scale.
Experience handling end-to-end feature ownership, including design, development, testing, and deployment.
Experience mentoring junior engineers and contributing to engineering excellence within the team.
Familiarity with AI-assisted development tools (such as GitHub Copilot or similar) to improve productivity and engineering efficiency.
Excellent communication skills, with the ability to clearly articulate technical concepts, collaborate effectively across teams, and contribute positively to engineering culture and decision-making.