Full-Stack Developer - Java, Spring Boot, React Expert

Sai Krishna Aianala

Full-Stack Developer

Overland Park, KS *********@****************.*** +1-913-***-**** LinkedIn SUMMARY

Full-stack developer with 5 years of experience designing and delivering scalable, secure, cloud-native applications using Java, Spring Boot, and React. Proven expertise in microservices architecture, REST API design, distributed systems and secure backend architecture integrated with relational and NoSQL databases. Experienced in deploying cloud-native applications on AWS and Azure using Docker and CI/CD Automation with Jenkins. Strong collaborator with expertise in Agile delivery, code reviews and performance optimization. TECHNICAL SKILLS

Languages: Java, JavaScript, SQL, Python

Backend : Spring Boot, Spring MVC, Hibernate, JPA, Spring Cloud, Spring Security, REST API Design, SOAP, GraphQL, Node.js Frontend Development: HTML5, CSS3, JavaScript, React.js, Redux, Bootstrap, Angular, jQuery Architecture & Design: Microservices Architecture, Design Patterns (SOLID, MVC), System Design, TDD Databases: MySQL, PostgreSQL, SQL Server, Oracle, MongoDB, DynamoDB, Redis Cloud Platforms & DevOps: AWS (EC2, S3, Lambda, RDS), Microsoft Azure, Git/GitHub, CI/CD Automation, Docker, Jenkins Queue & Messaging: Apache Kafka, RabbitMQ, JMS

Testing & Logging Tools: JUnit, TestNG, Mockito, Selenium, Cucumber BDD Monitoring & Security: ELK Stack, Splunk, Prometheus, Grafana, OAuth2.0, JWT, (RBAC) Project Management: Agile (Scrum, Kanban), SDLC, Jira PROFESSIONAL EXPERIENCE

Full-Stack Developer Lumen Technologies, USA Mar 2025 – Present

• Designed and owned a cloud-native microservices platform using Spring Boot and Spring Cloud, supporting insurance policy and claims workflows with 99.5% production uptime and scalable horizontal growth.

• Architected secure API ecosystems (REST & SOAP) for policy lifecycle management using Hibernate/JPA with Oracle, enforcing OAuth 2.0, JWT-based RBAC, and API versioning to meet enterprise security and compliance standards.

• Optimized backend performance by implementing advanced indexing strategies in MySQL and introducing Redis distributed caching, reducing average API latency from 800ms to 180ms and lowering database load by 60%.

• Developed event-driven claim notification pipelines using Apache Kafka, decoupling core claim processors from downstream services and ensuring resilience during peak claim submission windows.

• Built production-grade CI/CD pipelines using Git and Jenkins, containerized services with Docker, and deployed workloads on AWS (EC2, RDS, S3), enabling faster releases and consistent environment parity.

• Enhanced observability through centralized logging, metrics, and tracing with CloudWatch, Prometheus, and Grafana, helping quickly identify performance bottlenecks and production issues and improving MTTR.

• Developed React.js dashboards with Redux for claims analytics and policy administration, improving operational visibility and reducing manual processing errors by 40%.

• Contributed to infrastructure automation using Terraform, standardizing AWS environment setup for consistent and reproducible deployment, staging, and production.

• Collaborated cross-functionally with QA, DevOps, and frontend teams in an Agile environment, driving sprint goals resolving blockers, and ensuring timely delivery of platform features.

Full-Stack Developer HCL Technologies, India Jan 2023 – Dec 2023

• Architected a high-throughput, event-driven order processing system using Spring Boot microservices and Apache Kafka, reliably handling 50,000+ daily transactions while preventing inventory overselling through distributed coordination.

• Designed scalable data persistence strategies using MongoDB for flexible product catalogs, PostgreSQL for transactional integrity, and Redis caching for real-time inventory reads, achieving sub-100ms response times during peak traffic.

• Developed enterprise-grade Angular admin portals with responsive UI patterns, integrating backend services via REST and GraphQL APIs to enable dynamic querying and faster feature evolution.

• Automated deployment workflows with Jenkins and GitHub Actions, improving release frequency and operational efficiency through repeatable, zero- downtime releases.

• Implemented RabbitMQ-based asynchronous workflows between order fulfillment, payment, and inventory services, incorporating retry policies and dead-letter queues to ensure eventual consistency.

• Deployed microservices on Microsoft Azure (VMs, managed databases) with auto-scaling policies, and implemented Grafana dashboards to monitor service latency, throughput, and failure rates.

• Containerized all services using Docker and orchestrated deployments with Kubernetes, enabling consistent development-to-production workflows and improved release stability.

• Implemented structured logging with SLF4J and log4j to streamline debugging for simplifying root-cause analysis across distributed services.

• Followed SOLID principles and participated in peer reviews, contributing to design discussions, sprint demos, and post-release retrospectives to improve delivery velocity and quality.

Software Engineer Tata Consultancy Services(TCS), India Apr 2020 – Dec 2022

• Contributed to the decomposition of a monolithic Java application into Spring Boot microservices, improving scalability and maintainability.

• Designed and implemented RESTful APIs using Spring Boot and Spring Data JPA, documenting endpoints with Swagger/OpenAPI.

• Integrated backend services with MySQL and PostgreSQL, ensuring transactional integrity across distributed systems.

• Implemented unit and integration testing using JUnit and Mockito, achieving 80% code coverage.

• Participated across the full SDLC, including requirements analysis, system design, development, testing and deployment in Agile Scrum teams. EDUCATION

Masters in computer science (Cybersecurity) - University of Central Missouri, USA Jan 2024 – Aug 2025 CERTIFICATIONS

AWS Certified Cloud Practitioner (CLF-01)

AWS Certified Developer Associate (DVA-C02)

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