I design and build scalable, high-performance web & mobile applications — from pixel-perfect front-ends to resilient microservice back-ends. Based in the USA.
With a robust track record of developing scalable, efficient, and innovative solutions in web and mobile applications. Proficient in both the MERN (MongoDB, Express.js, React, Node.js) and MEAN (MongoDB, Express.js, Angular, Node.js) stacks. Experienced in GraphQL for efficient data querying and real-time updates, and skilled with Angular Signals & NgRx for reactive, performance-optimized UIs. Also experienced with Salesforce Lightning Web Components (LWC) for enterprise CRM systems.
Years of experience
Building full-stack solutions on the MEAN stack with Node.js — delivering scalable, performant applications for one of the largest financial services firms in the world.
Enhanced reactivity in existing Angular components using the Signals API, reducing manual subscriptions. Implemented product search and filtering systems in Angular so users can quickly find products across multiple criteria.
Played a pivotal role in migrating the Accushield platform to a microservices architecture — significantly improving scalability, modularity, and fault tolerance. Built dynamic, real-time full-stack web applications with Angular, Node.js, and TypeScript on PostgreSQL.
Developed and maintained full-stack web applications, delivering robust features end to end across the front-end and back-end.
Developed robust RESTful web services in Node.js for seamless front-end/back-end communication, configured Express.js middleware for smarter routing, and drove reliability with Postman and automated API testing.
Started full-time as a UI/UX-focused engineer — turning wireframes into interactive designs, then growing into MongoDB schema design, database migrations with minimal downtime, and REST APIs with Express.js, Passport.js, and JWT authentication.
He is an exceptionally skilled and professional full-stack developer. Sainithin consistently contributed innovative ideas and identified issues that had not been previously addressed. A valuable asset to any team.
An outstanding developer, consistently delivering exceptional results through his remarkable ability to analyze complex challenges, devise effective solutions, and engage seamlessly with stakeholders.
One of the most thorough and detail-oriented developers I've collaborated with. He asks insightful questions that drive clarity and efficiency, ensuring every project runs smoothly.
Sainithin consistently produces work that meets and exceeds expectations — proactive, adaptable, and results-driven on every project he touches.
When writing APIs, it's important to pay attention to various aspects to ensure they are efficient, secure, and maintainable.
Read article BlogQA testing plays a pivotal role in the software development life cycle, ensuring the final product meets high standards of quality.
Read article MoreDeep dives on APIs, testing, and full-stack engineering — straight from the trenches.
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