Full Stack Java Engineer with 6+ Years Experience

Pradesh Gwachha

Full Stack Software Engineer

***************@*****.*** 334-***-**** linkedin.com/in/pradesh-gwachha

SUMMARY

Results-driven Full Stack Java Developer with 6+ years of experience specializing in backend and full stack engineering across healthcare and fintech domains. Skilled in building scalable, secure, and high-performance applications using Java (Spring Boot), React.js, Microservices, and Cloud-native architectures (AWS, Docker, Kubernetes, Kafka). Strong background in database optimization, CI/CD automation, and containerized deployments. Adept at collaborating with cross-functional teams to transform complex requirements into reliable, user-centric software. Passionate about applying Clean Architecture, SOLID principles, and Agile best practices to deliver maintainable and efficient solutions.

TECHNICAL SKILLS

Languages

Java (8–17), JavaScript (ES6+), TypeScript, SQL, Python (Basic), HTML5, CSS3

Frameworks & Libraries

Spring Boot, Spring Security, Spring Data JPA, Hibernate/JPA, Microservices, React.js (Redux, Hooks), Node.js, Express.js

Cloud Platforms

AWS (EC2, ECS, Lambda, S3, RDS, CloudWatch, IAM), Azure

DevOps & CI/CD

Docker, Kubernetes, Jenkins, GitHub Actions, Git

Databases

PostgreSQL, MySQL, MongoDB, Redis, Oracle, Cassandra

Messaging & Streaming

Apache Kafka, RabbitMQ, JMS

Testing & QA

JUnit, Mockito, Postman, Selenium, TestNG, SonarQube

API & Integration

RESTful APIs, GraphQL, OAuth2, JWT

Development Practices

Agile/Scrum, Clean Architecture, SOLID, SOA, ETL Processing

EDUCATION

Troy University, Master's in Computer Science

Relevant courses: Software Engineering, Database, Computer Architecture, Analysis of Algorithms, Operating Systems

Orchid International College, BS in Information Management

EXPERIENCE

United Healthcare Full Stack Java Developer Hopkins, MN Aug 2024 – Present

Responsibilities:

Developed enterprise-scale healthcare applications using Java (Spring Boot) for backend services and React.js for interactive front-end modules.

Designed and optimized RESTful APIs and microservices for claims processing, provider management, and member engagement workflows.

Improved API performance by 35% through caching, async calls, and query optimization.

Integrated backend services with PostgreSQL, MySQL, and MongoDB, ensuring HIPAA-compliant data handling.

Secured applications using Spring Security, OAuth2, and JWT, enabling fine-grained access control.

Deployed Dockerized microservices on AWS and Azure Kubernetes clusters to ensure high scalability and uptime.

Automated build and deployment using Jenkins and GitHub Actions, cutting deployment errors by 30%.

Conducted unit/integration testing with JUnit, Mockito, and Postman, achieving high test coverage and reliability.

Implemented Kafka-based real-time data pipelines for event-driven claim validation and provider notifications.

Applied Clean Architecture and SOLID principles for code maintainability and modularity.

Monitored performance and system health using AWS CloudWatch, Prometheus, and Grafana dashboards.

Tech Stack: Java, Spring Boot, Spring Security, React.js, PostgreSQL, MySQL, MongoDB, AWS, Azure, Docker, Kubernetes, Jenkins, Git, JUnit, Mockito, OAuth2, JWT, Kafka.

Cedar Gate Java Backend Developer Greenwich, CT Aug 2021 - July 2023

Responsibilities:

Built and maintained scalable backend services for healthcare analytics and claims processing systems.

Developed and deployed RESTful APIs and microservices for secure, real-time enterprise integrations.

Enhanced database performance by optimizing PostgreSQL/MongoDB queries and indexing strategies.

Engineered event-driven systems using Apache Kafka and RabbitMQ for high-volume healthcare data processing.

Designed batch and streaming ETL workflows to process millions of patient records using Spring Batch and Kafka.

Adopted Clean Architecture and SOLID principles, improving modularity and maintainability.

Deployed services in Docker/Kubernetes clusters on AWS and Azure for scalability.

Automated builds and deployments via Jenkins, GitHub Actions, and SonarQube for quality assurance.

Implemented secure authentication using Spring Security, JWT, and OAuth2, aligned with HIPAA standards.

Wrote JUnit/Mockito tests with >85% coverage, ensuring production-grade reliability.

Collaborated with data science and ML teams to integrate predictive analytics into clinical applications.

Provided ongoing system monitoring and incident resolution via AWS CloudWatch and Splunk.

Tech Stack: Java, Spring Boot, REST APIs, Microservices, PostgreSQL, MongoDB, Redis, Kafka, RabbitMQ, AWS, Azure, Docker, Kubernetes, Jenkins, GitHub Actions, JUnit, Mockito, OAuth2, JWT, SonarQube.

TechnoFex Full Stack Java Developer Harlow, Essex London, UK Nov 2018 - Aug 2021

Responsibilities:

Developed and maintained full stack web applications using Java Spring Boot and React.js.

Designed and consumed REST APIs to enable seamless data flow across systems.

Increased API response time by 25% through query optimization and caching.

Implemented secure user authentication with Spring Security, JWT, and OAuth2.

Built reusable React components, reducing new feature delivery time by 20%.

Refactored legacy codebases to reduce technical debt and improve maintainability.

Designed responsive UIs using React.js, HTML5, CSS3, and JavaScript.

Created JUnit/Mockito test suites to ensure production stability.

Managed Docker-based deployments and configured CI/CD pipelines for smooth releases.

Applied Agile methodologies and collaborated closely with cross-functional teams.

Integrated MySQL/PostgreSQL databases and optimized stored procedures.

Implemented logging and monitoring using Log4j and the ELK stack.

Tech Stack: Java, Spring Boot, Spring Security, React.js, HTML5, CSS3, JavaScript, MySQL, PostgreSQL, MongoDB, Docker, Jenkins, Git, JUnit, Mockito, OAuth2, JWT, ELK.

LICENSES & CERTIFICATIONS

Oracle: Oracle Certified Associate, Java SE 8 Programmer

AWS: AWS Certified Cloud Practitioner

Duke University: Java Programming: Solvinf Problems with Software

Duke University: Programming Foundations with JavaScript, HTML and CSS

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