Senior Java Full Stack Developer

SAI ABHISHEK DHARNI

Senior Java Full Stack Developer

682-***-**** •*****************@*****.*** •Denton, TX •LinkedIn

PROFESSIONAL SUMMARY

Java Full Stack Developer with 4+ years of experience designing, developing, and supporting enterprise-grade web applications using Java, Spring Boot, Microservices, and cloud-native technologies.

Strong expertise in Java 11 and Java 17, leveraging Streams, Functional Interfaces, Records, Completable Future, and modern concurrency patterns to build scalable applications.

Extensive experience designing RESTful APIs and event-driven solutions using Spring Boot, Spring Cloud, Kafka, and distributed messaging architectures.

Proven experience building cloud-native applications on AWS using EC2, Lambda, S3, RDS, DynamoDB, SQS, SNS, and CloudWatch.

Hands-on experience developing responsive front-end applications using React.js, Redux Toolkit, TypeScript, JavaScript ES6+, HTML5, CSS3, and Bootstrap.

Strong knowledge of Microservices architecture including service discovery, centralized configuration, API gateways, fault tolerance, and distributed tracing.

Experience implementing OAuth2, JWT, Spring Security, RBAC, and secure coding practices for enterprise applications.

Proficient in developing CI/CD pipelines using Jenkins, Docker, Kubernetes, Maven, SonarQube, and Git.

Experience optimizing application performance, reducing API response times, and improving system reliability through proactive monitoring and tuning.

Strong background working with relational and NoSQL databases including PostgreSQL, Oracle, MongoDB, Cassandra, and DynamoDB.

Experienced in Agile/Scrum environments with strong collaboration across engineering, QA, DevOps, and product teams.

Passionate about writing clean, maintainable, and testable code following SOLID principles and industry best practices.

TECHNICAL SKILLS

Core Languages: Java (8/11/17), JavaScript, TypeScript, SQL, Python

Backend & Frameworks: Spring Boot, Spring Cloud (Gateway, Config, Eureka), Spring Security, Spring Data JPA, Spring Batch, Hibernate, Spring MVC.

Frontend Technologies: React.js, Redux Toolkit, TypeScript, JavaScript, HTML5, CSS3, Bootstrap

APIs & Integration: REST, GraphQL, SOAP, WebSocket, Swagger/OpenAPI, JAX-RS, Microservices Architecture

Databases & Caching: Oracle, PostgreSQL, MySQL, MongoDB, Cassandra, Redis, MS SQL Server

Messaging & Streaming: Apache Kafka, RabbitMQ, ActiveMQ, Apache Camel, JMS, AWS SQS/SNS

Cloud Platforms: AWS (EC2, S3, Lambda, RDS, DynamoDB, SNS, SQS, CloudWatch), GCP

CI/CD: Docker, Kubernetes, Jenkins, GitLab CI/CD, Helm, Terraform, Git, Maven, Gradle, SonarQube

Testing & Quality: JUnit, Mockito, TestNG, Selenium, Jest, Postman, JMeter, SonarQube, Cucumber

Monitoring & Observability: ELK Stack, Prometheus, Grafana, Splunk, Datadog, Zipkin.

PROFESSIONAL EXPERIENCE

Java Full Stack Developer January 2025 – Present

Client: Fidelity Investments Westlake, TX

Responsibilities:

Designed and developed cloud-native microservices using Java 17, Spring Boot, and Spring Cloud to support customer onboarding and transaction processing platforms.

Built RESTful APIs consumed by internal and external applications, reducing integration complexity and improving service interoperability.

Implemented event-driven workflows using Kafka, enabling asynchronous communication between distributed services.

Developed React.js front-end components with reusable architecture patterns and optimized rendering performance.

Introduced Redis-based caching mechanisms that reduced API response times for frequently accessed customer data.

Integrated OAuth2 and JWT-based authentication frameworks to secure enterprise APIs and customer-facing applications.

Built centralized exception handling, request validation, and logging frameworks to improve application observability.

Developed CI/CD pipelines using Jenkins, Docker, and Kubernetes, reducing deployment effort and releasing timelines.

Optimized PostgreSQL database queries and indexing strategies to improve application throughput.

Implemented distributed tracing and monitoring using CloudWatch and application-level metrics.

Participated in architecture discussions and code reviews to enforce development standards and best practices.

Collaborated closely with product owners and business stakeholders to translate requirements into scalable technical solutions.

Java Developer June 2021 – July 2023

Client: Accenture Hyderabad, India

Responsibilities:

Developed backend services supporting investment and portfolio management applications.

Developed new customer-facing capabilities for billing and account management platforms using Java 11 and Spring Boot.

Built reusable business service components that simplified integration between internal systems.

Designed and implemented RESTful APIs for data exchange between portfolio, reporting, and compliance platforms.

Worked closely with database teams to develop efficient data access layers and improve query performance.

Implemented business workflows involving complex financial calculations and transaction processing logic.

Developed secure integration services supporting communication with external vendor applications.

Enhanced application reliability through improved exception handling, transaction management, and retry mechanisms.

Participated in application modernization efforts by migrating legacy modules to Spring Boot-based services.

Supported integration testing activities and assisted with production deployments across multiple environments.

Collaborated with infrastructure teams to troubleshoot environment-related issues and improve deployment stability.

Created technical documentation including API specifications, deployment procedures, and support runbooks.

Contributed to code quality initiatives through peer reviews and adherence to development stand

Junior Java Develop May 2020 – May2021

Client: Tetrasoft INC Hyderabad, India

Responsibilities:

Developed responsive user interfaces using React.js, JavaScript, HTML5, and CSS3.

Implemented backend functionality using Spring Boot and Hibernate to support investment management workflows.

Designed database objects include stored procedures, views, and complex SQL queries.

Developed REST endpoints supporting front-end and reporting requirements.

Enhanced application usability through improved navigation, form validation, and user interaction patterns.

Worked on data synchronization processes between multiple enterprise systems.

Implemented role-based access controls and session management features.

Participated in defect resolution, code refactoring, and performance improvement initiatives.

Assisted in maintaining CI/CD pipelines and automated deployment processes.

Collaborated with UX designers and business teams to improve overall application experience.

Supported regression testing and release management activities.

Participated in Agile ceremonies and sprint-based development efforts.

EDUCATION

Master of Science in Data Science May 2025

University of North Texas Denton, TX

Relevant Coursework: Advanced Database Systems, Distributed Systems, Cloud Computing, Machine Learning, Big Data Analytics, Software Engineering.

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