Durgesh Gupta

Senior Consultant (Technical Lead) at Xebia IT Architects (2024-04 – 2026-04)

Architected and deployed AWS Serverless applications (Lambda, API Gateway, AppSync) achieving 99.99% uptime and reducing infrastructure costs by 35%.
Implemented enterprise-grade Single Sign-On (SSO) using Ping Identity, enabling secure authentication across 10+ enterprise applications.
Optimized Angular application performance by 45% through lazy loading, Server-Side Rendering (SSR), and OnPush change detection strategies.
Engineered fault-tolerant message failover using SQS/SNS with Dead Letter Queues (DLQs), achieving zero data loss across all production events.
Boosted backend API performance by 60% via Redis caching, DB indexing, and query optimization across PostgreSQL and DynamoDB.
Enforced OWASP security standards with JWT token management and Role-Based Access Control (RBAC), reducing security vulnerabilities by 30%.
Automated CI/CD pipelines with GitLab and SonarQube, cutting release cycle time by 70% and improving code quality scores by 40%.
Led migration of legacy monolith to microservices/serverless architecture, improving scalability and reducing deployment complexity.
Mentored a team of 6 developers through code reviews and technical leadership, increasing team-wide code quality metrics by 40%.
Established CloudWatch monitoring and alerting strategy, reducing production incidents by 40%.

Senior Software Developer at Kanini Software Solutions (2022-05 – 2024-03)

Delivered enterprise React and Node.js applications supporting 10,000+ concurrent users with 99.9% uptime SLA.
Improved database query and API response speed by 50% through Redis caching, SQL/NoSQL indexing, and pagination strategies.
Built resilient async workflows using AWS SQS with retry logic and failover handling, increasing overall system stability.
Achieved 85%+ test coverage on critical backend modules using Jest and Supertest, significantly reducing production bug rate.
Integrated Microsoft Single Sign-On (SSO) with OAuth2/OpenID Connect, streamlining authentication across all internal tools.
Upgraded legacy Angular applications to latest versions with zero downtime, resolving deprecated APIs and improving performance.
Received Standing Ovation Award for exceptional project delivery and team contribution.

Software Developer at Axestrack Pvt Ltd (2021-01 – 2021-09)

Built real-time vehicle tracking applications using Angular and Node.js with WebSocket integration, achieving sub-100ms live update latency.
Optimized reporting dashboards with indexed SQL queries, reducing dashboard load time by 60%.
Designed secure wallet and transaction modules with strict input validation and RBAC-controlled transaction flows.
Implemented RabbitMQ job queues for scalable asynchronous processing with retry and failover capabilities.
Resolved critical memory leaks through production log analysis and performance profiling, improving application stability.
Received Rising Star Award for outstanding technical contributions within tenure.

Software Developer at Webcontentor Pvt Ltd (2019-05 – 2020-12)

Developed Single Page Applications (SPAs) using React and AngularJS, improving UI responsiveness and user retention metrics.
Built secure RESTful APIs using Node.js and MySQL with input sanitization, parameterized queries, and RBAC authorization.
Deployed scalable applications on AWS EC2 and S3 with IAM-based access control policies.
Created and maintained Swagger/OpenAPI documentation, accelerating third-party integration timelines by 40%.
Implemented Google Single Sign-On (SSO) authentication flow, improving user onboarding speed for consumer-facing applications.
Enforced clean code practices through ESLint and Prettier, increasing overall code maintainability.

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