Software Engineer Senior

Green Kwam

Senior Software Engineer - Java Spring Boot React

Phone: 408-***-**** Mail: ****.**.*****@*****.*** Location: New York, NY SUMMARY

Experienced Senior Software Engineer with 12+ years of expertise in developing scalable, high-performance applications using Java (Spring Boot) and React.js. Strong background in building microservices architectures, designing RESTful APIs, and leading backend teams in Agile environments. Proficient with Kafka, Kubernetes, and AWS (EC2, Lambda, RDS, EKS), with a solid track record of optimizing CI/CD pipelines and enhancing system observability. Known for cross-functional collaboration, mentoring engineers, and delivering clean, reliable code that drives business value.

EXPERIENCE

Walmart Plus – Senior Software Engineer

Feb 2022 – Feb 2025

Served as backend technical lead for Walmart+, a high-scale subscription service competing with Amazon Prime, supporting millions of daily users across both online and in-store channels.

Designed and developed Spring Boot-based microservices powering core membership features including registration, billing, renewal workflows, loyalty benefits, and personalized offers.

Architected event-driven systems using Kafka to enable real-time communication between distributed services such as order management, inventory, and customer engagement

Championed best practices in API design, domain modeling, and service decomposition, improving backend system modularity, testability, and scalability.

Led technical planning sessions, code reviews, and architecture discussions, guiding a team of engineers on backend implementation strategies and enforcing clean, maintainable codebases.

Worked closely with product managers, data scientists, and UX designers to align technical solutions with business goals in areas like pricing optimization and omnichannel personalization.

Integrated services with internal Walmart platforms and external partners to support seamless subscription experiences across mobile, desktop, and point-of-sale systems.

Partnered with SRE and DevOps teams to enhance observability and performance monitoring using tools like Prometheus, Grafana, and distributed tracing

Contributed to continuous delivery efforts by improving CI/CD pipelines and ensuring safe, automated deployments through progressive delivery practices.

Mentored junior and mid-level developers, providing onboarding support, pair programming, and technical feedback to accelerate team growth and capability. Meta – Senior Software Engineer

Oct 2019 – Feb 2022

Led end-to-end development of the subscription management platform using React/Redux for the frontend and Java (Spring Boot) for the backend.

Engineered scalable, high-performance RESTful APIs in Spring Boot for handling user subscriptions, billing, and notifications.

Built interactive React components and custom hooks to deliver dynamic, accessible, and mobile- responsive UI experiences.

Integrated secure user authentication and authorization using Spring Security and JWT.

Collaborated cross-functionally with product, design, and backend teams to ensure seamless feature delivery and UI/API alignment.

Tuned SQL queries and optimized PostgreSQL and MongoDB performance to support real-time data retrieval for dashboards and analytics.

Mentored junior developers and conducted code reviews focused on performance, security, and maintainability best practices.

Contributed to CI/CD automation using Jenkins and GitHub Actions to support agile deployments and rollback strategies.

Intuit – Senior Software Engineer

Jan 2017 – Oct 2019

Developed full-stack features for QuickBooks and ProConnect using React/Redux on the frontend and Java (Spring Boot) on the backend.

Designed and implemented RESTful APIs and microservices with Spring Boot to support financial reporting, billing, and customer workflows.

Built responsive, reusable UI components in React, improving developer efficiency and UI consistency across products.

Integrated frontend with backend services using secure API contracts and handled asynchronous state with Redux-Saga.

Collaborated with design and product teams to translate complex financial requirements into intuitive user experiences.

Wrote and maintained unit and integration tests using JUnit, Jest, and React Testing Library, improving test coverage and reliability.

Streamlined CI/CD pipelines with Jenkins and GitHub Actions, reducing manual deployment errors.

Deployed applications to AWS (EC2, S3, RDS) and monitored system performance and uptime.

Worked closely with security and compliance teams to ensure financial data handling aligned with industry standards.

Contributed to internal engineering best practices and reusable component libraries to accelerate team productivity.

Walgreens – Software Engineer

Nov 2012 – Dec 2016

Promoted from Intern to Software Developer based on strong technical skills and ownership of backend systems.

Designed and developed internal tools using Java EE and Spring Boot, streamlining workflows for pharmacy and inventory teams.

Created RESTful APIs for internal services such as prescription management and order tracking.

Migrated legacy PHP services to Java-based microservices, improving system reliability and maintainability.

Integrated backend services with PostgreSQL and optimized complex queries for performance.

Followed secure development practices, ensuring HIPAA compliance and data integrity across systems. SKILLS

Programming Languages: Java, JavaScript, TypeScript

Frontend Development: React.js, Next.js, Angular, Vue.js, CSS, Sass

Backend Development: Spring Boot, Node.js, Express.js

Testing, QA & Monitoring: Jest, Mocha, Cypress, Selenium, TestCafe, JUnit

Databases: PostgreSQL, MySQL, MongoDB, Redis

Cloud/DevOps: AWS(EC2, Lambda, RDS, DynamoDB, S3, EKS), Azure, Kubernetes, Docker, Jenkins

APIs & Integrations: RESTful APIs, GraphQL, Okta, OAuth, JWT, Swagger

Tools & Project Management: Git, Webpack, Babel, JIRA EDUCATION

Finger Lakes Community College

BSc. in Computer Science September 2007 – May 2012

Contact this candidate