Java Full-Stack Developer - Cloud-Native Expert

Kiruthika Elamurugan

Java Full Stack Developer

San Francisco, CA Open for relocation to Seattle, WA Plano, TX Chicago, IL New York, NY

774-***-**** *******************@*****.***

SUMMARY

Skilled Full Stack Developer with nearly 5 years of experience in building scalable, high-performance applications using Java (Spring Boot), React.js, Angular, and cloud-native AWS services. Proven track record at Shopify, Infosys, and Accenture, delivering secure microservices, real-time data pipelines with Kafka, and responsive front-end interfaces. Strong in REST API development, OAuth2/JWT security, and CI/CD automation with Jenkins, Docker, and GitHub Actions. Adept in SQL/NoSQL databases, agile collaboration, and test-driven development, consistently driving faster deployments and high system reliability.

PROFESSIONAL EXPERIENCE

Software Engineer, Shopify (Shopify Magic) August 2023 - Present San Francisco, CA

Engineered distributed microservices using Java, Spring Boot, and RESTful APIs, enabling personalized content rendering and modular theme extensibility across high-traffic Shopify storefronts.

Designed scalable backend schemas for Metafields and JSON templates and exposed them via GraphQL/REST APIs to support OS 2.0 themes and headless storefronts (Hydrogen/Oxygen).

Refactored monolithic services into Dockerized microservices deployed on AWS EKS, leveraging IAM roles, CloudWatch, and Prometheus for observability and performance tracing.

Led cross-functional technical collaboration with frontend, infrastructure, and design teams to implement schema- based personalization features.

Built high-throughput APIs and logic extensions using Shopify Functions and WebAssembly, powering extensible checkout, discount, and shipping logic for merchant customization.

Developed CI/CD pipelines with GitHub Actions, Jenkins, and ArgoCD, enabling automated validation, rollback, and blue/green deployments for backend APIs and schema changes.

Collaborated with DevOps and infra teams to implement CDN-edge caching strategies via Fastly and Cloudflare, and architected event-driven cache invalidation, reducing render latency by 35%.

Resolved system bottlenecks and reduced storefront load latency by 35% through analytical debugging and performance profiling.

Maintained orchestration and secure storage workflows on AWS (EKS, IAM, S3)—ensuring 99.99% uptime across 500K+ concurrent storefront users.

Enabled AI/ML-based personalization infrastructure by exposing structured content APIs to recommendation engines and token-gated services

Full Stack Developer, Infosys September 2020 – November 2022 India

Developed scalable Spring Boot microservices for Member Management and Claims Processing systems, improving service modularity and deployment agility.

Built and secured RESTful APIs using Spring MVC, Spring Security, and JWT, implementing RBAC to ensure proper access control for Admins, Providers, and Members.

Integrated Spring Data JPA with MySQL to perform CRUD operations and manage complex insurance validation workflows with optimized query performance.

Automated deployments using Jenkins CI/CD pipelines, pushing Dockerized services to AWS ECS, enabling faster and more reliable releases.

Monitored and logged application health with AWS CloudWatch, setting up alerts to proactively resolve production issues and maintain system uptime.

Streamlined front-end integration using Angular, working closely with QA to align on API expectations and reduce defects through clear communication and prompt resolution cycles.

Created robust automated testing pipelines with JUnit 5 and Mockito, contributing to 85%+ test coverage and consistent build quality across microservices.

Documented APIs using Swagger/OpenAPI and supported QA with Postman test collections, streamlining the validation process and reducing test cycle times.

Applied strong computer science fundamentals to optimize algorithmic performance and system scalability.

Documented APIs using Swagger/OpenAPI and supported QA with Postman test collections, incorporating inputs from business and technical stakeholders to improve test coverage and clarity. Full Stack Developer, Accenture July 2019 – August 2020 India

Developed real-time data streaming pipelines using Apache Kafka and RabbitMQ, enhancing system reliability for processing high-volume event data.

Designed and optimized backend microservices architecture for performance, fault tolerance, and scalability, handling 1M+ daily API requests with high availability.

Built and deployed containerized applications with Docker and Kubernetes, enabling automated scaling and reducing production downtime by 27%.

Implemented secure API integrations using OAuth2, OpenID Connect, and encryption protocols to comply with financial and healthcare regulations, boosting data security.

Optimized SQL and NoSQL databases (PostgreSQL, MySQL, MongoDB) through indexing, caching, and query tuning, reducing query time by 45%.

Worked in an Agile environment, actively participating in sprint planning, code reviews, and backlog refinement, while interfacing with stakeholders across engineering and QA to prioritize feature delivery.

Demonstrated problem-solving by resolving high-priority production issues under tight deadlines.

Created robust automated test suites with JUnit, Mockito, and Postman, achieving 90%+ test coverage and improving release stability and QA efficiency.

Collaborated with UI teams to deliver high-performance frontend components using React.js, TypeScript, and Redux, enhancing user experience and reducing UI defects.

Worked in an Agile environment, actively participating in sprint planning, code reviews, and backlog refinement, leading to a 20% reduction in feature release cycle times. TECHNICAL SKILLS

Languages & Frameworks: Java, Python, JavaScript, TypeScript, Spring Boot, Spring MVC, Spring Security, Spring Data JPA, React.js, Redux, HTML5, CSS3

Backend & API Development: RESTful APIs, OAuth 2.0, JWT, OpenID Connect, Role-Based Access Control (RBAC), API Gateway, Microservices Architecture, Secure API Design Frontend Development: React.js, Redux, TypeScript, Responsive UI Design, Component-based Architecture, State Management

Databases: PostgreSQL, MySQL, MongoDB, Cassandra, Spring Data JPA, Query Optimization, Indexing, Caching Cloud & DevOps: AWS (ECS Fargate, Lambda, API Gateway, CloudFormation, CDK, RDS, CloudWatch), Docker, Kubernetes, Jenkins, GitHub Actions, CI/CD Automation, Infrastructure as Code (IaC) Messaging & Event Processing: Apache Kafka, RabbitMQ, Asynchronous Processing, Event-Driven Architecture, Real- Time Data Streaming

Testing & Quality Assurance: JUnit, JUnit 5, Mockito, Postman, SonarLint, Integration Testing, Static Code Analysis, 90%+ Test Coverage

Monitoring & Performance Optimization: AWS CloudWatch, Logging & Alerting, Error Rate Monitoring, Performance Tuning, Fault Tolerance, Scalability

Tools & Collaboration: Git, GitHub, Bitbucket, Swagger/OpenAPI, Agile/Scrum, Jira, Confluence, Sprint Planning, Backlog Grooming, On-call Support

Soft Skills

Communication, Problem Solving, Team Collaboration, Continuous Learning, Agile/Scrum, stakeholdersTechnical Documentation, Project Management, Entrepreneurial Mindset EDUCATION

Master of Science in Data Analytics

Clark University, MA

CERTIFICATION

AWS Certified Developer – Associate

Oracle Certified Professional: Java SE 17 Developer (1Z0-829)

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