Abhishek S
Full Stack Developer | Java | React | Spring Boot | Microservices | AWS | REST API
- Role
- Full Stack Developer at Saayam For All
- Location
- Dallas-Fort Worth, TX, US
- LinkedIn followers
- 500 followers
About Abhishek S
Full Stack Java Developer with 5+ years of experience building scalable, cloud-native applications across banking, finance, and non-profit domains. Skilled in Java, Spring Boot, React, and Microservices, with hands-on expertise in secure API development using OAuth 2.0, JWT, and Spring Security. Proficient in building event-driven systems with Kafka, RabbitMQ, and resilient microservices with Saga and Circuit Breaker patterns. Developed cloud deployments on AWS using Lambda, EKS, Cognito, RDS, and Terraform with CI/CD via GitHub Actions and ArgoCD. Built responsive UIs with React, Tailwind CSS, KnockoutJS, and React Native, delivering seamless user experiences. Worked on real-time systems using WebSockets and OpenAI integrations for NLP and intelligent search. Hands-on with SQL and NoSQL databases like PostgreSQL, MySQL, Oracle, and DynamoDB. Experienced in observability with Prometheus, Grafana, OpenTelemetry, and performance tuning. Test-driven developer with strong skills in JUnit, Mockito, and Postman API testing. AWS Certified Developer – Associate, passionate about clean code, scalable architecture, and impactful solutions.
Experience
Full Stack Developer
Nov 2024 — Present · San Jose, CA, US
At Saayam For All, I contributed to building scalable microservices for Volunteer and Request management using Spring Boot, Java 17, Python, and RESTful APIs, deployed via AWS Lambda and EKS behind API Gateway. I developed reusable React components, integrated Cognito-based RBAC for secure access, and leveraged Kafka for async processing and real-time WebSocket notifications—boosting user engagement by 20%. I improved system performance by implementing Redis caching and optimizing Aurora PostgreSQL queries, cutting response times by 30% and query latency by 35%. I also integrated OpenAI APIs for NLP-based volunteer matching, conducted load testing with JMeter and Gatling for 10K+ users, and ensured 90% test coverage through JUnit and QA collaboration.
Education
Vardhaman College of Engineering (VCEH)
Bachelor's degree
The University of Alabama in Huntsville
Master's degree
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