Kunguma Vishnu

Co-Founder

Bengaluru, Karnataka, India6 yrs 8 mos experience

Key Highlights

Expert in building scalable backend systems.
Proven track record in performance optimization.
Strong experience in cloud-native microservices.

Stackforce AI infers this person is a Backend-focused Software Engineer in E-commerce and SaaS.

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Skills

Core Skills

JavaSpring Boot

Other Skills

Java 17KafkaOracle SQLAWSAzureDockerKubernetesJenkinsJUnitSonarQubeNode.jsMongoDBPostmanPostgreSQLChatGPT

About

I’m a Software Engineer with 4+ years of experience in building scalable, high-performance backend systems and cloud-native microservices using Java 17, Spring Boot, and Microsoft Azure. My expertise lies in designing distributed architectures, optimizing system performance, and solving complex engineering problems with clean, efficient code. At Walmart, I’ve contributed to multiple large-scale initiatives on the Returns Application Platform, driving end-to-end design, development, and automation of high-impact features that improved reliability, performance, and customer experience. Previously at Athenahealth and EdgeVerve, I worked on optimizing APIs, migrating legacy systems, and improving overall throughput by up to 90%, with measurable business impact. I’m passionate about system design, performance optimization, and fault-tolerant microservices, and I enjoy collaborating across teams to bring products from concept to production. My goal is to build systems that are robust, efficient, and designed to scale — blending engineering precision with product-focused thinking. Core Competencies: Java 17 · Spring Boot · Microservices · System Design · Microsoft Azure · Apache Kafka · Docker · Kubernetes · CI/CD · PostgreSQL · MySQL · Hibernate · Design Patterns · Performance Optimization · Distributed Systems

Experience

6 yrs 8 mos

Total Experience

Average Tenure

Current Experience

Paypal

Software Engineer 2

Dec 2025 – May 2026 · 5 mos

Java 17Spring BootKafkaOracle SQLAWSAzure+4

Walmart global tech

Software Engineer 3

May 2024 – Dec 2025 · 1 yr 7 mos · Chennai, Tamil Nadu, India · Hybrid

Designed and implemented the PDP Returns Pipeline processing 350M+
offerIDs daily, integrating Apache Spark, Kafka, and GCP Hive to precompute
and publish delta updates to IRO, enabling real-time return-policy display on
Walmart’s PDP and reducing backend load by 99% while supporting 15×
traffic scale.
Designed and implemented the FedEx Generate Label API, decoupling it from the
legacy CreateReturn flow for hazmat items and enabling on-demand label
generation. Integrated with multiple Walmart systems (Orchestration,
Configuration, Gateway) to support in-store hazmat returns, ensuring seamless
cross-system communication and smooth end-to-end rollout.
Delivered multiple RAP platform enhancements and decommissions, Market
Place Initiatives, managing design-to-deployment lifecycle, regression
automation, and release/on-call support across environments.
Led the migration of RAP regression automation from Astra UI to TestNG,
establishing best practices, mentoring peers, and becoming the point of contact for
framework issues and code merges.
Tech: Java 17, Spring Boot, Kafka, Oracle SQL, AWS, Azure, Docker, Kubernetes, Jenkins.

JavaSpring BootJUnitSonarQubeJenkins

Grow through life

Mentor

Jan 2024 – Present · 2 yrs 5 mos · India

I guide and mentor people to become the best version of themselves.

Athenahealth

Member of Technical Staff

Nov 2023 – May 2024 · 6 mos · Chennai, Tamil Nadu, India · On-site

Built RESTful APIs for the Dental Unpostables module in Spring Boot, automating Unpostables
claim-discrepancy management and reducing manual rework.
Refactored and migrated legacy Perl APIs to Spring Boot 2.0
microservices, optimizing SQL and cutting P95 latency from 2.3 s → 230
ms; integrated JUnit, SonarQube, Jenkins, and Jacoco to enable continuous
testing and quality gates.

JavaSpring BootNode.jsMongoDBPostman

Edgeverve

Associate Product Developer (Software Engineer)

Oct 2021 – Aug 2023 · 1 yr 10 mos · Bengaluru, Karnataka, India · Hybrid

Developed Service Request Banking REST APIs for payment requests, credit limit upgrades, and activity disputes using Java & Spring Boot.
Implemented a caching layer improving pre-approved loan API latency by 85 %.
Built a Node.js/MongoDB activity-tracking tool parsing internal logs to enhance usability analytics.
Contributed to “Nura” code-generation platform producing complete core-banking modules (API + UI + tests + deployment scripts), standardizing developer workflows.
Award: Best Trainee Project (2021) – Capstone.
Tech: Java, Spring Boot, React, TypeScript, MySQL, Node.js, Jenkins, Postman.

Career break

Personal goal pursuit

May 2019 – Sep 2021 · 2 yrs 4 mos · Chennai, Tamil Nadu

I had managed a squad in Mobile Legends (Mobile Moba) for 2 consecutive seasons being world rank 1 in leaderboard. Also acheived World rank 1 as a player during one of those seasons. I was consistently India number 1 in multiple heroes for 2 years. I did manage a complete marketplace where people can avail lot of services related to Mobile Legends game itself. Had Clients from India, USA, Canada, UAE, Saudi Arabia, Qatar, Australia, France, England, Japan, etc

Node.jsPostgreSQL

Thoughtworks

Intern

Jun 2017 – Sep 2017 · 3 mos · Coimbatore Area, India · On-site

Built a large-scale Energy Monitoring System to automate tracking across regions, store data in the cloud, and visualize usage dashboards.
Tech: Node.js, PostgreSQL, Distributed Systems.