Vishal Kumar

Software Engineer

Bengaluru, Karnataka, India9 yrs 1 mo experience

Most Likely To SwitchHighly Stable

Key Highlights

8.5+ years of backend engineering experience
Expert in high-concurrency system design
Proven track record in microservices architecture

Stackforce AI infers this person is a Backend Engineer specializing in Retail Tech and Fintech with a focus on microservices.

Contact

Skills

Core Skills

JavaSpring Boot

Other Skills

Java 17MicroservicesHigh-Concurrency SystemsREST APIsReact.jsTypeScriptMySQLAngularOracle DBCore JavaSpring SecurityMultithreadingRESTful WebServicesSQLJavaScript

About

Senior Java Backend Engineer with 8.5+ years of experience designing and owning high-concurrency, enterprise-scale backend systems. Currently at Walmart Global Tech, I work on backend microservices and workflow orchestration systems that handle sustained peak traffic in the range of hundreds of TPS. My role involves end-to-end backend ownership — from system and low-level design to production deployment, monitoring, and incident resolution. I specialize in Java 17, Spring Boot, microservices architecture, and distributed system design, with strong experience in batch processing, performance optimization, and fault-tolerant services. I’m interested in senior backend engineering roles where system design, scalability, and reliability are core expectations.

Experience

9 yrs 1 mo

Total Experience

3 yrs

Average Tenure

4 yrs 3 mos

Current Experience

Walmart

Software Engineer 3

Jan 2022 – Present · 4 yrs 3 mos · Bengaluru, Karnataka, India · On-site

Senior Java Backend Engineer working on high-concurrency microservices using Java 17 and Spring Boot.
Designed backend systems handling sustained high TPS and complex workflow orchestration.
Led backend design, performance optimization, and production reliability.
Improved batch processing performance and system stability.

Java 17Spring BootMicroservicesHigh-Concurrency SystemsJava

Verizon data services

Software Engineer MTS-2

Dec 2019 – Jan 2022 · 2 yrs 1 mo · Bengaluru, Karnataka, India

Led the modernization of a legacy monolithic application into Spring Boot–based microservices, improving scalability, deployment agility, and fault isolation.
Designed and implemented RESTful APIs for order management, device lifecycle management, and user profile services used across multiple internal systems.
Improved backend performance through query optimization, caching strategies, and efficient resource utilization.
Rebuilt critical UI modules using React.js and TypeScript to support backend-driven workflows with better maintainability and performance.
Actively participated in Agile ceremonies, peer reviews, and release planning to ensure high-quality and on-time deliveries.
Tech: Java, Spring Boot, Microservices, REST APIs, React.js, TypeScript, MySQL

JavaSpring BootMicroservicesREST APIsReact.jsTypeScript+1

Profinch solutions pvt ltd

2 roles

Software Engineer

Sep 2017 – Dec 2019 · 2 yrs 3 mos · Bengaluru, Karnataka, India

Developed Spring Boot microservices for a Credit Card Management System, supporting customer onboarding, account management, and transaction workflows.
Built data ingestion pipelines processing customer data from CSV uploads and third-party APIs.
Implemented Angular-based UI modules for customer onboarding and transaction visibility.
Worked on ETL integrations between core banking systems and internal enterprise platforms.
Gained strong exposure to backend architecture, data processing, and enterprise application development.
Tech: Java, Spring Boot, Microservices, Angular, Oracle DB

JavaSpring BootMicroservicesAngularOracle DB