Available to hire
Hello! I’m Himavarsha Kalakonda, a software engineer with 3+ years of experience delivering scalable applications using Java and Python. I specialize in building REST/GraphQL APIs, microservices with Spring Boot and Flask, and optimizing both SQL and NoSQL databases for high-traffic systems.
I’m proficient with AWS, Azure, Docker, Kubernetes, and CI/CD automation, and I thrive in Agile teams that value security, reliability, and measurable business impact. I enjoy designing Kafka-driven data pipelines, improving performance, and collaborating across disciplines to ship robust, secure solutions.
Skills
Work Experience
Software Engineer at Uber
January 1, 2025 - November 14, 2025Developed Spring Boot and Flask microservices for ride-matching, increasing throughput by 28% and enabling real-time trip allocation across distributed systems supporting millions of daily ride requests. Built REST APIs with PostgreSQL and Redis caching, reducing response latency during peak traffic by 22% while ensuring fault-tolerant transaction handling. Implemented Kafka pipelines with Python ETL scripts for real-time ride tracking and analytics, achieving 99.9% uptime during demand surges. Automated CI/CD pipelines with Jenkins, Docker, and AWS Lambda, reducing release cycles by 40% and improving deployment consistency. Strengthened backend security with Spring Security and JWT authentication, reducing unauthorized access attempts by 35%. Optimized PostgreSQL queries, stored procedures, and indexes to boost transactional performance by 20%. Increased test coverage to 95% with JUnit, Mockito, and PyTest.
Software Engineer at Hexaware Technologies
August 1, 2023 - August 1, 2023Migrated legacy monolithic applications into Spring Boot and Flask microservices, reducing downtime by 30% and improving scalability and maintainability. Designed REST, SOAP, and GraphQL APIs with Swagger/OpenAPI to accelerate client integrations. Built Hibernate and SQLAlchemy data access layers, reducing query errors and ensuring reliable persistence across Oracle and MySQL databases for financial applications. Automated dataset validation with Python scripts, lowering manual QA effort by 35%. Containerized apps with Docker and deployed on Kubernetes, cutting provisioning time by 45%. Collaborated with QA using Selenium, TestNG, Postman, and PyTest to minimize defect leakage and support Agile delivery.
Education
Master of Science in Computer Science at University of Central Missouri
January 11, 2030 - May 1, 2025Bachelor of Technology in Computer Science and Engineering at JNTUH University College of Engineering, Jagityal, India
January 11, 2030 - July 1, 2022Qualifications
Programming in C - NPTEL
January 11, 2030 - November 14, 2025Python - Coursera (University of Michigan)
January 11, 2030 - November 14, 2025Web Development – Oakspro
January 11, 2030 - November 14, 2025Machine Learning - Verzeo
January 11, 2030 - November 14, 2025Web Development - Internshala
January 11, 2030 - November 14, 2025IoT Workshop - JNTU Jagityal
January 11, 2030 - November 14, 2025Industry Experience
Software & Internet, Professional Services, Financial Services
Skills
Hire a Full Stack Developer
We have the best full stack developer experts on Twine. Hire a full stack developer in Overland Park today.