Senior Java Full Stack Developer (AWS, Spring, React)

SOMESHWAR M

Java Full Stack Developer

+1-617-***-**** *****************@*****.*** https://www.linkedin.com/in/someshwar-m-ba58a134b/ PROFILE SUMMARY

Java Full Stack Developer with 5+ years crafting high-availability, cloud-native enterprise systems across fintech and healthcare — leveraging Java 11/17, Spring Boot 3.x, and Microservices on AWS.

Architected RESTful and GraphQL APIs consumed by 1M+ daily transactions at Fidelity Investments, applying CQRS, Event Sourcing, and Circuit Breaker patterns for fault-tolerant distributed systems.

Proficient in modern frontend engineering with React 18, Next.js, TypeScript, Redux Toolkit, and Tailwind CSS — delivering accessible, component-driven UIs with 95+ Lighthouse performance scores.

Experienced cloud practitioner (AWS Certified Developer Associate) — shipping serverless architectures via Lambda, API Gateway, ECS Fargate, and infrastructure-as-code with Terraform and CloudFormation.

Strong MLOps and GenAI integration background — embedding OpenAI, Azure OpenAI, and LangChain into production pipelines; prompt engineering, vector databases (Pinecone, Weaviate), and RAG-based chatbots.

Champion of DevSecOps culture: automated CI/CD with GitHub Actions, DAST/SAST via SonarQube, containerized deployments on Kubernetes (EKS/GKE), and observability stacks using Datadog and OpenTelemetry. TECHNICAL SKILLS

Languages Java 11/17, Python 3.x, TypeScript 5, JavaScript (ES2023+) Backend Frameworks Spring Boot 3.x, Spring Cloud, Spring Security 6, Quarkus, Micronaut, Node.js Frontend React 18, Next.js 14, Angular 17, Redux Toolkit, Tailwind CSS, HTML5, CSS3 Microservices & APIs RESTful APIs, GraphQL, gRPC, Kafka, RabbitMQ, WebSockets, AsyncAPI Cloud & IaC AWS (ECS, Lambda, API GW, RDS Aurora, S3, SQS, SNS), Terraform, CloudFormation Databases PostgreSQL, MySQL, DynamoDB, MongoDB Atlas, Redis, Cassandra, Elasticsearch AI / GenAI OpenAI API, LangChain, Azure OpenAI, Pinecone, Hugging Face, RAG pipelines DevOps & Observability GitHub Actions, Jenkins, Docker, Kubernetes (EKS), Helm, Datadog, OpenTelemetry Security OAuth 2.0, OIDC, JWT, Spring Security 6, RBAC, OWASP, SonarQube, Vault Testing JUnit 5, Mockito, TestContainers, Cypress, k6 (load testing), Postman/Newman AI-Dev Tools GitHub Copilot, Cursor AI, ChatGPT code review, AI-assisted test generation PROFESSIONAL EXPERIENCE

Senior Java Full Stack Developer Fidelity Investments — Merrimack, NH Sep 2024 – Present

Architected 12+ cloud-native microservices processing $2B+ daily transactions using Java 17, Spring Boot 3.x, and AWS ECS Fargate — reducing infrastructure costs by 30% vs. prior EC2 setup.

Engineered real-time portfolio analytics dashboard in React 18 + Next.js with SSR, cutting page load from 4.2s to 0.9s and boosting user retention by 18%.

Built event-driven pipelines with Apache Kafka (10K+ events/sec) replacing synchronous REST chains — eliminating cascading failures and improving system resilience from 99.5% to 99.97% uptime.

Integrated Azure OpenAI and LangChain into an internal wealth-advisory chatbot, reducing analyst query resolution time by 45% using RAG on proprietary financial documents.

Enforced zero-trust security posture via Spring Security 6, OAuth 2.0 + OIDC, and Vault-managed secrets — achieving SOC 2 Type II compliance and passing OWASP Top 10 penetration tests.

Established GitHub Actions CI/CD with automated SAST (SonarQube), DAST (OWASP ZAP), and Terraform-based blue/green deployments — cutting release cycle from 2 weeks to 2 days.

Mentored 4 junior engineers via pair programming, architecture reviews, and TDD workshops using JUnit 5 and TestContainers — raising team code coverage from 62% to 87%. Java Full Stack Developer Epic Systems — Derry, NH Jan 2024 – Aug 2024

Led migration of 3 legacy JBoss monoliths to Spring Boot 3 microservices with Strangler Fig pattern — serving 500K+ healthcare records with zero downtime during transition.

Developed FHIR-compliant REST APIs (HL7 FHIR R4) enabling EHR integrations with 8 hospital networks, reducing data exchange latency by 60%.

Deployed event-driven messaging using Apache Kafka and RabbitMQ for asynchronous lab-result notifications — processing 50K+ daily messages with sub-200ms end-to-end delivery.

Configured Kubernetes (AKS) with Helm charts and Horizontal Pod Autoscaler — absorbing 3x traffic spikes during peak hours without manual intervention.

Implemented distributed tracing with OpenTelemetry + Datadog and centralized log aggregation in Splunk — reducing mean-time-to-resolution (MTTR) from 4 hours to 25 minutes.

Built Angular 17 patient-portal frontend with lazy loading and PWA support — improving mobile Lighthouse score from 54 to 91.

Java Full Stack Developer Amrutanjan Healthcare — Chennai, India Feb 2022 – Jul 2023

Designed DDD-based microservices platform handling pharmaceutical supply chain for 5M+ SKUs across 20 distribution hubs using Java 11, Spring Boot, and Oracle DB.

Built React + Redux SPAs with real-time inventory dashboards using WebSockets — enabling warehouse staff to track stock changes with under 500ms latency.

Developed ETL pipelines using Spring Batch and Java Streams processing 500K+ daily records from ERP systems — cutting nightly batch runtime from 6 hours to 45 minutes.

Migrated on-premise deployments to AWS (EC2 ECS, RDS, S3) and OpenShiŌ — reducing infrastructure overhead by 40% and improving CI/CD frequency from monthly to weekly.

Authored Swagger/OpenAPI 3.0 specs for 30+ microservice endpoints and introduced contract testing with Pact — eliminating 90% of integration regression bugs.

Java Developer NetMeds — Chennai, India Mar 2020 – Jan 2022

Built high-throughput Spring Boot APIs supporting 100K+ daily prescription orders, with Redis caching reducing database load by 55% during peak traffic.

Developed React.js frontend components for product catalog with infinite scroll, server-side filtering, and skeleton loading — improving perceived performance by 40%.

Implemented JMS-based order notification system with ActiveMQ, replacing brittle polling jobs and ensuring 99.9% message delivery with dead-letter queue handling.

Contributed to Agile Scrum sprints — authored JUnit 5 and Mockito test suites achieving 80%+ coverage and generated automated regression reports via JasperReports. EDUCATION

Master of Science in Computer Science Rivier University, NH, USA 2023 – 2025 CERTIFICATIONS

AWS Certified Developer – Associate

Oracle Certified Professional: Java SE 11 Developer

Kubernetes and Cloud Native Associate (KCNA) — In Progress

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