# Gautam ‎ > Lead Software Engineer | Angular, React, TypeScript | Java Spring, NodeJS | AWS | Python, GenAl | Ex: @HPCL (Fortune 500), @Arintra (YC 21) Location: Irving, Texas, United States Profile: https://flows.cv/gautam1 Lead Full-Stack Engineer with deep experience across banking and healthcare, currently leading initiatives within Citibank ICG using Java Spring, Angular, React, TypeScript, and Node.js/Express to deliver secure, scalable web platforms. Proven track record in enterprise development, including EMR systems and HIPAA-compliant workflows, fintech remediation tools, and large migrations from legacy Java/Maven to modern React architectures. Skilled in microservices, RESTful APIs, and database optimization across PostgreSQL, MySQL, MongoDB, and Redis, with strong CI/CD and cloud proficiency (Docker, AWS). Known for measurable impact—35-45% UI performance gains and 40% faster load times—backed by rigorous security (OAuth2/OIDC/JWT, TLS, XSS/CORS) and a Six Sigma Master Black Belt to streamline SDLC, testing, and delivery. ## Work Experience ### Lead Software Engineer @ Citi Jan 2024 – Jan 2025 | Irving, Texas, United States Worked on Citi’s Institutional Client Group (ICG) Sales Platform, building end-to-end features across Java Spring microservices and Angular UI. Delivered scalable, secure REST APIs with Spring Boot, Spring Data JPA/Hibernate, and Spring Security, and integrated them with a responsive Angular front end using TypeScript. Focused on performance, resiliency, and clean API contracts to support high-volume sales workflows while aligning with Citi’s enterprise standards, audit controls, and release processes. Contributions: • Built reusable Angular components/modules with TypeScript, reactive forms, and a shared UI library; standardized grids with pagination, sorting, and filtering. • Managed deployment with AWS EC2. Object storage and backup using AWS S3. • Integrated the frontend with REST APIs via typed clients and HTTP interceptors for auth headers, unified error handling, and retry policies. • Wrote frontend tests (Jest/Jasmine + RTL/Cypress) and enforced linting/coverage gates in CI to prevent regressions. • Designed and implemented RESTful microservices in Spring Boot following DDD-aligned resource modeling and consistent API contracts. • Designed and implemented RESTful microservices in Spring Boot following DDD-aligned resource modeling and consistent API contracts. • Optimized persistence using Spring Data JPA/Hibernate, indexes, projections, and pagination; eliminated N+1 queries and reduced latency. • Added resiliency with timeouts, retries, bulkheads, and circuit breakers; integrated service discovery and API gateway routing. • Containerized services with Docker and supported CI/CD pipelines for automated build, scan, test, and Kubernetes deployment. • Implemented observability with centralized logging, metrics, and distributed tracing to speed up incident triage and root-cause analysis. ### Software Developer @ ThinkRoman Jan 2024 – Jan 2024 | United States ### Software Technical Lead @ ThinkRoman Jan 2022 – Jan 2024 | India Results-driven tech leader with a proven track record in healthcare IT, EdTech, and cutting-edge web development. Led mission-critical projects including EMR applications, digital platforms, and robust management systems, leveraging state-of-the-art technologies to drive innovation and efficiency across diverse industries. Contributions: * Architected and implemented EMR applications, enhancing patient care efficiency * Developed digital and video magazine platforms, revolutionizing health information dissemination * Engineered robust student and course management systems for leading universities * Managed microservices using API Gateway and AWS Lambda for serverless applications. * Created a universal backend API with WhatsApp integration, RateLimiter, and file upload functionality * Developed OIDC (OpenID Connect) from scratch, enhancing security and authentication capabilities * Migrated legacy codebases to TypeScript, significantly improving code quality * Established a comprehensive Design System, ensuring cohesive user experiences across all products * Leveraged Next.js to create high-performance, scalable web applications * Optimized development workflows through strategic tooling and monorepo management Key Projects: * Scaled applications to over 5,000 active users across multiple platforms * Implemented solutions for more than 5 universities, enhancing educational technology infrastructure * Developed a versatile backend API, reducing development time and improving cross-platform consistency ### Frontend Developer / Engineer @ Arintra Jan 2020 – Jan 2021 Pivotal role in establishing and evolving the frontend architecture from inception. Key Contributions: ⋅ Designed intuitive UI/UX wireframes and prototypes using Figma ⋅ Conducted user research and usability testing to refine interface designs ⋅ Led migration from Maven Java codebase to React, significantly improving application performance ⋅ Implemented AI-based patient questionnaire system, enhancing data collection efficiency ⋅ Developed automated report generation feature, streamlining clinical workflows ⋅ Created comprehensive patient management dashboard for a US client ⋅ Integrated real-time data visualization tools, improving data interpretation for healthcare providers ⋅ Established frontend development best practices and coding standards Key Achievements: ⋅ Patient questionnaire system utilized by 10,000+ patients across 20+ clinics in the US ⋅ Reduced questionnaire completion time by 30% through intuitive design and AI assistance ⋅ Improved clinician efficiency by 25% with the implementation of the automated report generation feature ### UI Engineer @ HPCL North Zone Allied Retail Business Jan 2018 – Jan 2020 | India Elevated user interfaces for HPCL's retail operations, bridging design and development to enhance customer experiences across digital platforms. Key Contributions: ⋅ Developed responsive and intuitive web interfaces for HPCL's retail management systems ⋅ Implemented performance optimizations, reducing page load times by 40% ⋅ Collaborated with backend teams to integrate RESTful APIs, improving data flow and system reliability ⋅ Utilized React and Redux to create dynamic, state-managed components for complex retail applications ⋅ Implemented accessibility standards (WCAG 2.1) to ensure inclusive design across all digital touchpoints ### User Experience Designer @ HPCL North Zone Allied Retail Business Jan 2017 – Jan 2018 | India Pioneered user-centric design approaches for HPCL's digital transformation initiatives in the allied retail sector. Key Contributions: ⋅ Spearheaded the redesign of HPCL's retail partner portal, increasing user engagement by 60% ⋅ Conducted comprehensive user research and usability testing for new digital service offerings ⋅ Created wireframes, prototypes, and high-fidelity mockups using tools like Sketch and InVision ⋅ Developed a cohesive design system, ensuring brand consistency across various digital platforms ⋅ Collaborated with marketing teams to align UX strategies with branding initiatives ⋅ Introduced customer journey mapping to identify pain points and opportunities in the retail experience Key Achievements: ⋅ Redesigned point-of-sale interface resulted in a 25% reduction in transaction time for retail partners ⋅ UX improvements in the customer loyalty program increased member engagement by 35% ## Education ### Master's degree in Computer Science University of Central Missouri Jan 2022 – Jan 2024 ### Bachelor of Technology - BTech in Information Technology National Institute of Technology , Patna ## Contact & Social - LinkedIn: https://linkedin.com/in/gautam-tiwary --- Source: https://flows.cv/gautam1 JSON Resume: https://flows.cv/gautam1/resume.json Last updated: 2026-03-29