Senior Full Stack Engineer - Enterprise SaaS

AMIT PATEL

Senior Full Stack Engineer Enterprise SaaS React Node.js AWS

Pune, India (Remote) +91-808******* ***********@*****.*** linkedin.com/in/dev-amit-patel PROFESSIONAL SUMMARY

Senior Full Stack Engineer with 11+ years building enterprise SaaS products across retail procurement, global e-invoicing compliance, and healthcare expense management. Deep expertise across React.js, TypeScript, Node.js, GraphQL, and AWS, with hands-on ownership of authentication, VAT/tax-compliance logic, and CI/CD pipelines. Track record of measurable wins — 40% faster page loads, 50% faster release cycles, 70% faster deployments — plus mentoring 6+ engineers from campus hire through production-ready. Trusted by clients and leadership for high-stakes, cross-timezone engagements requiring fast, well-researched solutions. CORE STRENGTHS

Enterprise React & Component Architecture • Full Stack Development (Node.js, GraphQL, REST) • Global Tax/VAT Compliance Systems • AWS Cloud & Authentication (JWT) • Performance Optimization & Debugging • Technical Leadership & Mentoring • Client-Facing Delivery & Agile Ownership

CORE TECHNICAL SKILLS

Frontend: React.js, Redux/Redux-Toolkit, TypeScript, JavaScript (ES6+), HTML5, CSS3/SCSS, Tailwind CSS, Bootstrap, Material UI Backend: Node.js, Express.js, GraphQL, RESTful API Design, Microservices Architecture, Meteor.js Databases: MongoDB, PostgreSQL, MySQL, Supabase (SQL & NoSQL) Cloud, Auth & DevOps: AWS (Lambda, EC2, S3), JWT Authentication, Vercel, Docker, Jenkins, GitLab CI/CD, Git, Bitbucket Practices: Agile/Scrum, Kanban, TDD/BDD, Requirements & Story Estimation, Code/PR Review, Mentoring, System & API Design PROFESSIONAL EXPERIENCE

Senior Software Developer — Encora Inc. (acquired by Coforge)June 2022 – Present Remote Own architecture and technical delivery across three concurrent enterprise platforms spanning retail procurement, global e-invoicing compliance, and healthcare expense management.

• Centric Buying Board (enterprise retail procurement platform, team of 10) — Built scalable React modules integrated with Spring Boot APIs and AWS Lambda services; introduced a reusable component architecture that cut release cycles by 50% and improved long-term maintainability.

• Diagnosed a database performance bottleneck caused by inefficient indexing and led the fix, significantly improving query performance; separately investigated and resolved a broken CI/CD pipeline caused by failing automated tests, restoring deployment capability ahead of a scheduled release.

• Vertex (global e-Invoicing compliance platform, team of 12) — Built React.js/TypeScript/GraphQL interfaces automating invoice creation, exchange, clearance, and e-archiving for global and country-specific e-invoicing mandates, integrated with client ERP/finance systems and secured via JWT authentication.

• Navigated country-specific VAT compliance logic across multiple global markets — the platform's core technical complexity — and modernized a legacy UI into a responsive, feature-rich interface supporting real-time validation and audit-ready records.

• Lilly HCP Expense Platform (healthcare client, team of 8) — Built a full-stack workflow (React/TypeScript frontend; Node.js, PostgreSQL, AWS backend) enabling Lilly's field sales representatives to submit HCP meal-expense forms, including AWS-driven handwriting extraction, multi-step validation, and automated submission to Concur.

• Solved the platform's most technically challenging feature — reliably extracting data from handwritten expense sheets — and resolved legacy performance and stability issues carried over from earlier development phases.

• Cut page load times by 40% through code-splitting, lazy loading, and render-path optimization on high-traffic dashboards.

• Built and maintained CI/CD pipelines (Jenkins, GitLab CI) deploying to AWS and Vercel, cutting deployment time by ~70% while improving release reliability.

Senior Software Developer — Cyber Infrastructure Pvt. Ltd. (CIPL)May 2016 – June 2022 India Progressed from individual contributor to trusted senior engineer over 6 years — delivering 5-6 major enterprise engagements across nonprofit, gaming, and proptech domains, plus ongoing ad hoc technical support — through consistent delivery, client ownership, and mentoring.

• Vollie (Australian charity/NFP volunteer-management platform, team of 5) — Built front-end and back-end features in Meteor.js/MongoDB and supported the team through PR reviews and code quality checks; authored the original folder structure and component architecture that still powers the application in production today.

• Kwalee (mobile game publisher with 1B+ downloads, team of 3) — Built front-end and back-end features in React.js, Express.js, MongoDB, and TypeScript; worked directly with the client on demos and sprint planning.

• Larki (3D drone-survey and BIM platform, team of 8) — Built front-end features in React.js, Express.js, MongoDB, and TypeScript, and led UI-focused PR code reviews across the team.

• Refactored critical modules to React hooks + TypeScript, cutting bug count by ~30% across engagements.

• Owned end-to-end Agile delivery — gathering requirements and acceptance criteria, estimating stories in points and hours, presenting technical solutions, and collaborating directly with Product Owners on Larki and Vollie; regularly contributed to architecture and API design discussions across projects.

• Mentored 6+ campus-hire graduate engineers through MERN stack onboarding, running daily remote screen-share sessions to fast-track their transition to live production projects. Junior Software Developer — Corner Stone SolutionsMar 2015 – May 2016 India

• Built UI components and REST API endpoints using JavaScript, React.js, and Node.js under senior guidance; debugged and optimized legacy PHP/MySQL codebases, writing unit tests and documentation for new features. EDUCATION

Bachelor of Engineering, Computer Science & Engineering — Rajiv Gandhi Technical University June 2011 – May 2015