Senior Full-Stack Java Developer - AWS Microservices Expert

Mushkan Adhikari

Full Stack Java Developer Fairfax, VA

571-***-**** *****************@*****.*** linkedin.com/in/mushkan-adhikari

SUMMARY

Senior Full Stack Developer with 6+ years of experience specializing in scalable backend development with Java and Spring Boot, frontend development with Angular and React, and secure cloud-native application delivery. Proven expertise in RESTful API development, microservices, and secure authentication (OAuth2, JWT, IAM). Strong experience with data-driven backend systems, event-driven architecture using Apache Kafka, and DevOps on AWS. Adept in Agile environments with hands-on SDLC ownership and production support experience.

TECHNICAL SKILLS

Languages: Java (8–17), Python, TypeScript, JavaScript (ES6+), Scala

Frontend: Angular, Node.js, React.js (Hooks, Redux), HTML5, CSS3, Material UI, Tailwind CSS

Backend & APIs: Spring Boot, Hibernate, Express.js, RESTful APIs, GraphQL, WebSockets

Cloud/DevOps: AWS (Lambda, ECS, EKS, EC2, RDS, S3, IAM), Docker, Kubernetes, Terraform, AWS CDK, Azure

Messaging/Data Streaming: Apache Kafka, Kafka Connect, Kafka Streams, Avro, Protobuf

Authentication: OAuth2, JWT, IAM, Ping Identity (familiar)

Databases: PostgreSQL, MongoDB, MySQL, Oracle, Redis, Elasticsearch

CI/CD & Monitoring: GitHub Actions, Jenkins, Bitbucket Pipelines, Prometheus, Grafana, New Relic, ELK Stack

Testing: JUnit5, Mockito, ScalaTest, Cypress, Selenium, Postman

EXPERIENCE

Senior Full Stack Java Developer

Optum – Kansas City, KS Oct 2023 – Present

Developed backend APIs using Java (Spring Boot), Node.js (Express) and Scala for claims processing systems and frontend contract with Angular & React teams.

Designed and deployed scalable cloud applications on AWS using ECS, Lambda, and CDK.

Implemented OAuth2 and JWT-based security layers across all services for access control and identity management.

Integrated real-time Kafka messaging for notifications, billing, and audit logging.

Worked in Agile team on full SDLC cycle including code reviews, deployments, and production issue triaging.

Monitored applications using Prometheus, New Relic, and ELK stack to ensure system health.

Environment: Java 17, Spring Boot, Node.js Angular, AWS ECS/Lambda, Kafka, PostgreSQL, OAuth2, JWT, CI/CD, GitHub Actions

Full Stack Developer

Walmart – Sunnyvale, CA Mar 2021 – Sep 2023

Developed microservices using Java and Spring Boot, and frontend modules using Angular and React for retail and inventory systems.

Built GraphQL APIs for efficient frontend communication and reduced payloads.

Implemented data transformation using Kafka Streams; built automated CI/CD pipelines with GitHub Actions and Terraform on AWS.

Managed RBAC using OAuth2/JWT, ensuring secure endpoints for internal and vendor systems.

Applied caching (Redis) and asynchronous processing to improve system performance and scalability.

Environment: Java 11, Spring Boot, Node.js, Angular, Kafka, AWS, Redis, OAuth2, Terraform, GraphQL, PostgreSQL

Software Developer

T-Mobile – Colonial Heights, VA Aug 2019 – Feb 2021

Designed full-stack solutions using Java (Spring Boot), Angular, and Python scripts for internal tools and customer support systems.

Built RESTful APIs and consumed/produced Kafka messages for chat, notifications, and ticket management.

Used Python for data processing and automation tasks, including log parsing and alerting mechanisms.

Integrated IAM solutions with OAuth2 and JWT to manage authentication and authorization across distributed services.

Used Redis and WebSockets for low-latency, real-time updates.

Environment: Java 8, Spring Boot, Angular, Python, Kafka, Redis, OAuth2, EKS, Terraform, Jenkins

EDUCATION

Master of Science in Management Information Systems

Washington University of Science and Technology

Bachelor of Science in Information Technology

Marymount University

REFERENCES AVAILABLE UPON REQUEST

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