Available to hire
I am Srinivasa Reddy Challa, a full-stack software engineer with 4+ years of experience building scalable web applications using React.js, Node.js, and JavaScript. I specialize in performance optimization, REST/GraphQL API development, and cloud-native solutions with AWS, Docker, and Kubernetes.
I thrive in agile teams, perform thorough code reviews, and collaborate cross-functionally to deliver high-quality, maintainable software. I have hands-on experience supporting applications serving 100K+ users and continuously seek opportunities to improve reliability and user experience.
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Language
English
Advanced
Hindi
Advanced
Telugu
Advanced
Work Experience
Software Engineer (Graduate Student Assistant) at University of Tampa
May 1, 2025 - September 22, 2025Scaled backend throughput by 25% through asynchronous workflows and concurrency optimizations, enabling faster frontend responsiveness during peak usage. Maintained AWS-hosted applications with autoscaling groups and load balancing, sustaining 98% uptime. Built and optimized CI/CD pipelines with GitHub Actions and Jenkins, reducing release times by 20% and improving deployment consistency. Applied fault-tolerant error-handling patterns to stabilize performance under load. Boosted backend efficiency by 35% using Redis caching and workflow refactoring. Automated log analysis with ML-driven automation to accelerate incident resolution for dev teams. Designed and tuned PostgreSQL queries and indexes, reducing latency by 40% and ensuring data integrity under concurrent access. Implemented web performance strategies like lazy loading and code-splitting to improve page load times by 30% and enhance user experience during high traffic.
Software Engineer (Graduate Student Assistant) at University of Tampa
May 1, 2025 - September 22, 2025Scaled backend throughput through asynchronous workflows and concurrency optimizations, maintained AWS-hosted applications with autoscaling and load balancing, built and optimized CI/CD pipelines with GitHub Actions/Jenkins, implemented fault-tolerant error handling, and enhanced caching (Redis) to improve performance during peak usage. Performed AI-driven log analysis to accelerate incident resolution and conducted database tuning (PostgreSQL) to reduce latency. Improved web performance via lazy loading, code-splitting, and image optimization.
Software Engineer at Tata Consultancy Services Inc.
July 31, 2023 - September 22, 2025Built reusable React.js/TypeScript component libraries that accelerated delivery speed by 35% across teams and improved onboarding efficiency. Implemented error boundaries and Suspense to reduce session crashes by 40%. Delivered mobile-first, accessible UIs that boosted Lighthouse scores by 25%. Modernized legacy JavaScript into modular TypeScript with OOP patterns, reducing defects by 30%. Developed real-time dashboards with D3.js/Highcharts, and designed event-driven Node.js microservices on AWS to improve fault tolerance and reduce downtime by 30%. Implemented REST/GraphQL APIs with PostgreSQL-backed BFF, streamlined client data flow, and improved frontend maintainability. Secured JWT/OAuth2 authentication flows, reducing authentication issues by 40% while meeting compliance. Optimized performance with Redis caching, pagination, and SQL query tuning under load. Participated in agile ceremonies, peer code reviews, and cross-functional collaboration to deliver high-quality software.
Software Engineer at Tata Consultancy Services Inc.
July 1, 2023 - September 22, 2025Developed reusable React/TypeScript components, implemented UI reliability features with error boundaries and Suspense, designed event-driven Node.js microservices on AWS, built REST/GraphQL APIs with PostgreSQL-backed BFF, and performed performance optimization using Redis, pagination, and SQL tuning. Collaborated in Agile teams with code reviews to improve delivery speed and reliability. Achieved improvements in session stability, build performance, and customer engagement metrics.
Full Stack Engineer at Tata Consultancy Services Inc.
November 1, 2021 - July 31, 2023Refactored a monolithic Java app into Spring Boot microservices, boosting scalability and reducing downtime by 30%. Automated builds with Maven and Gradle, increasing reliability and minimizing manual errors. Improved transaction speed by 40% and reduced latency during peak loads by implementing Kafka-based data streaming. Built secure REST APIs with Spring Security, OAuth2, and JWT, integrating cloud identity management to enforce RBAC. Implemented Resilience4j circuit breakers and fallbacks, cutting cascading errors in microservices by 38%. Reduced deployment time by 40% using Docker, Kubernetes, Jenkins, and GitHub Actions for CI/CD automation. Built real-time monitoring with Grafana, cutting incident response time by 60% and boosting platform stability. Configured autoscaling and load balancers to manage traffic spikes, ensuring 98% uptime and stable performance. Developed Angular.js dashboards by integrating third-party APIs, improving real-time data visualization and boosting use
Full Stack Engineer at Tata Consultancy Services Inc.
November 1, 2021 - July 31, 2023Refactored a monolithic Java app into Spring Boot microservices, boosting scalability and reducing downtime by 30%. Automated builds with Maven and Gradle, increasing reliability and minimizing manual errors. Improved transaction speed by 40% and reduced latency during peak loads by implementing Kafka-based data streaming. Built secure REST APIs with Spring Security, OAuth2, and JWT, integrating cloud identity management to enforce RBAC. Implemented Resilience4j circuit breakers and fallbacks, cutting cascading errors in microservices by 38%. Reduced deployment time by 40% using Docker, Kubernetes, Jenkins, and GitHub Actions for CI/CD automation. Built real-time monitoring with Grafana, cutting incident response time by 60% and boosting platform stability. Configured autoscaling and load balancers to manage traffic spikes, ensuring 98% uptime and stable performance. Developed Angular.js dashboards by integrating third-party APIs, improving real-time data visualization and boosting use
Full Stack Engineer at Tata Consultancy ServicesInc.
November 1, 2021 - July 31, 2023Refactored a monolithic Java app into Spring Boot microservices, boosting scalability and reducing downtime by 30%. Automated builds with Maven and Gradle, increasing reliability and minimizing manual errors. Improved transaction speed by 40% and reduced latency during peak loads by implementing Kafka-based data streaming. Built secure REST APIs with Spring Security, OAuth2, and JWT, integrating cloud identity management to enforce RBAC. Implemented Resilience4j circuit breakers and fallbacks, cutting cascading errors by 38%. Reduced deployment time by 40% using Docker, Kubernetes, Jenkins, and GitHub Actions for CI/CD automation. Developed real-time monitoring with Grafana, cutting incident response time by 60%. Configured autoscaling and load balancers for 98% uptime. Developed Angular.js dashboards integrating third-party APIs, improving data visualization and user engagement.
Software Engineer at TechnoMold IT Solutions Pvt Ltd
November 30, 2020 - September 22, 2025Delivered high-performing SPAs with React.js and Redux Toolkit integrated with REST APIs, improving load speed and end-user experience. Introduced TypeScript across frontend and backend, reducing runtime issues by 25%. Automated SaaS and internal service integrations via Node.js webhook listeners. Configured NGINX routing and reverse proxy for Node.js microservices, reducing request latency by 30% and enabling higher concurrency. Built Docker-based dev environments, reducing onboarding setup time by 50%. Expanded frontend test coverage with Jest and React Testing Library, decreasing production defects. Strengthened CI pipelines with automated regression tests and coverage tracking, sustaining >90% test coverage. Coordinated versioned API rollouts and hotfixes, reducing client-reported downtime by 20% while ensuring smooth delivery.
Software Engineer at TechnoMold IT Solutions Pvt Ltd
November 1, 2020 - September 22, 2025Delivered high-performance SPAs with React.js and Redux Toolkit, introduced TypeScript across frontend/backend workflows, automated SaaS and internal service integrations via Node.js webhook listeners, configured NGINX routing for Node.js microservices, and created Docker-based development environments. Expanded frontend test coverage with Jest/React Testing Library and maintained CI pipelines to ensure reliable deployments.
Full Stack Engineer at Tata Consultancy Services Solutions
November 1, 2020 - November 1, 2021Deployed centralized monitoring with CloudWatch and ELK, reducing response time by 40% and boosting reliability. Optimized backend performance with Redis caching and code refactoring, cutting CPU usage by 35% and significantly boosting throughput during peak traffic. Designed data models and indexing strategies in MongoDB to enhance read/write performance and support high-concurrency workloads. Architected scalable Node.js/MongoDB backend that sustained 300% data growth with zero latency degradation. Implemented NGINX gateway for Node.js microservices, cutting API response times 30% and boosting React.js scale. Built real-time streaming with Node.js, WebSockets, and MongoDB Change Streams, making React.js app updates 40%. Integrated and secured payment gateways like Stripe and PayPal in Node.js backend, enabling seamless online transactions with PCI compliance.
Full Stack Engineer at Tata Consultancy Services Solutions
November 1, 2020 - November 1, 2021Deployed centralized monitoring with CloudWatch and ELK, reducing response time by 40% and boosting reliability. Optimized backend performance with Redis caching and code refactoring, cutting CPU usage by 35% and significantly boosting throughput during peak traffic. Designed data models and indexing strategies in MongoDB to enhance read/write performance and support high-concurrency workloads. Architected scalable Node.js/MongoDB backend that sustained 300% data growth with zero latency degradation. Implemented NGINX gateway for Node.js microservices, cutting API response times 30% and boosting React.js scale. Built real-time streaming with Node.js, WebSockets, and MongoDB Change Streams, making React.js app updates 40%. Integrated and secured payment gateways like Stripe and PayPal in Node.js backend, enabling seamless online transactions with PCI compliance.
Full Stack Engineer at Tata Consultancy Services Solutions
November 1, 2020 - November 1, 2021Deployed centralized monitoring with CloudWatch and ELK, reducing response time by 40%. Optimized backend performance with Redis caching and code refactoring, cutting CPU usage by 35%. Designed data models and indexing strategies in MongoDB to enhance performance and support high-concurrency workloads. Architected scalable Node.js/MongoDB backend sustaining 300% data growth with zero latency degradation. Implemented NGINX gateway for Node.js microservices, cutting API response times by 30%. Built real-time streaming with Node.js, WebSockets, and MongoDB Change Streams, improving React.js app updates by 40%. Integrated and secured payment gateways like Stripe and PayPal with PCI compliance.
Full Stack Engineer at TechnolMold IT Solutions Pvt Ltd
May 1, 2020 - November 1, 2020Developed single-page applications with React.js and Redux Toolkit frontend and Node.js/Express.js backend, delivering seamless user experiences. Enhanced MongoDB schemas and pipelines with Mongoose, enabling real-time updates and 4x scale without latency. Implemented RESTful APIs with Node.js and Express, enabling efficient frontend-backend communication and reducing response times by 30%. Built custom webhook listeners in Node.js to automate notifications and trigger workflows across internal microservices and external SaaS platforms, enhancing system integration and operational efficiency.
Full Stack Engineer at TechnolMold IT Solutions Pvt Ltd
May 1, 2020 - November 1, 2020Developed single-page applications with React.js and Redux Toolkit frontend and Node.js/Express.js backend, delivering seamless user experiences. Enhanced MongoDB schemas and pipelines with Mongoose, enabling real-time updates and 4x scale without latency. Implemented RESTful APIs with Node.js and Express, enabling efficient frontend-backend communication and reducing response times by 30%. Built custom webhook listeners in Node.js to automate notifications and trigger workflows across internal microservices and external SaaS platforms, enhancing system integration and operational efficiency.
Full Stack Engineer at TechnolMold IT Solutions pvt ltd
May 1, 2020 - November 1, 2020Developed single-page applications using React.js and Redux Toolkit frontend with Node.js/Express.js backend for seamless user experiences. Enhanced MongoDB schemas and pipelines with Mongoose enabling real-time updates and 4x scale without latency. Implemented RESTful APIs facilitating efficient frontend-backend communication, reducing response times by 30%. Built custom webhook listeners in Node.js to automate notifications and trigger workflows across internal microservices and external SaaS platforms, enhancing system integration and operational efficiency.
Education
Bachelor's at KL University, Vijayawada, Andhra Pradesh, India
January 1, 2016 - May 31, 2020Information Systems at University of Tampa
August 1, 2021 - May 31, 2023Bachelor's at KL University, Vijayawada, Andhra Pradesh, India
January 1, 2016 - May 31, 2020Information Systems at University of Tampa
January 1, 2022 - May 31, 2023Bachelor’s at KL University, Vijayawada, Andhra Pradesh, India
January 1, 2016 - May 31, 2020Information Systems at University of Tampa
August 1, 2022 - May 31, 2023Master of Science in Information Systems at University of Tampa
August 1, 2023 - May 1, 2025Bachelor of Engineering in Electronics and Communication Engineering at KL University
August 1, 2016 - May 1, 2020M.S in Information Systems at University of Tampa
August 1, 2023 - May 1, 2025Bachelor of Engineering in Electronics and Communication Engineering at KL University
August 1, 2016 - May 1, 2020Qualifications
Industry Experience
Software & Internet, Computers & Electronics, Financial Services, Retail, Professional Services, Media & Entertainment, Education
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
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