Candidate 018
Senior Java Backend Engineer
College Park, MD
Summary
I’m a Senior Java Developer with over 10 years of experience designing, building, and supporting scalable, secure, cloud-native microservices using Java (8/11/17) and the Spring ecosystem. I specialize in distributed systems, RESTful API design, CI/CD automation, containerization, and AWS-based platforms. I work comfortably in Agile/Scrum environments, focus on performance optimization and reliability, and have a strong track record of delivering mission-critical applications with high availability and fault tolerance.
Professional Experience
Java Developer
Polytech Computer Services
01/2014 – 07/2019
- Developed backend applications and RESTful web services using Java, Spring Boot and MySQL.
- Designed and optimized relational database schemas, improving SQL query performance by 50%.
- Performed root-cause analysis, debugging and performance tuning across multiple application modules.
- Implemented healthcare data integrations using HAPI FHIR for standardized clinical resource processing.
- Supported frontend stability by resolving issues in Angular templates, bindings and services.
- Contributed to scalable application architecture and participated in full SDLC from requirements to production support.
Java Developer (Remote)
Infosys
12/2020 – 04/2021
- Developed cloud-ready microservices using Spring Boot following 12-Factor App principles.
- Improved application performance through Redis caching, SQL query optimization and reduced startup times.
- Implemented Kubernetes deployment strategies (rolling and blue/green), achieving 99.99% service availability.
- Integrated Spring Boot Actuator with Prometheus and Grafana dashboards for real-time monitoring and alerts.
- Implemented secure authentication and authorization using Spring Security and JWT.
- Automated cloud infrastructure provisioning using Terraform, ensuring consistent environments across deployments.
- Applied strong data structures, algorithms and design patterns to produce clean, maintainable and scalable code.
Senior Java Developer (Remote)
American Express
05/2021 – 08/2025
- Designed and implemented Spring Boot–based microservices supporting high-volume, enterprise-scale transaction processing.
- Built RESTful APIs using Spring MVC and Spring Data JPA with secure authentication via Spring Security and JWT.
- Implemented microservices communication using Kafka and Feign Clients, ensuring reliable asynchronous messaging.
- Developed and maintained CI/CD pipelines using Jenkins and GitHub Actions, reducing deployment errors and manual effort.
- Containerized applications using Docker and deployed to Kubernetes clusters with rolling updates for zero-downtime releases.
- Optimized Couchbase NoSQL operations for high-performance CRUD transactions across multiple environments.
- Improved system observability by implementing centralized logging, exception handling and distributed tracing (Sleuth + Zipkin), reducing debugging time by 40%.
- Collaborated closely with QA teams to validate API edge cases, provide test data and support UAT and production releases.
- Provided production support for mission-critical services, resolving incidents and ensuring high availability and fault tolerance.
- Worked extensively in Linux environments, following Agile/Scrum methodologies and participating in sprint planning and retrospectives.
Project Experience
Java, Spring MVC, JSP, MySQL
Online Shopping System
- Built a full-stack e-commerce application supporting product catalog, cart management and secure order processing.
- Developed RESTful services and optimized SQL queries for improved transaction performance.
Node.js, Angular, MongoDB, HTML/CSS
Social Network Platform
- Designed a social networking platform with user profiles, posts and real-time interactions.
- Applied NoSQL data modeling and micro-frontend concepts for scalability.
Technical Skills
Programming & Core Java (Advanced)
:
Java SE 8/11/17, Collections, Generics, Streams, Lambda Expressions
Backend & Microservices (Advanced)
:
Spring Core, Spring MVC, Spring Boot, RESTful API Design & Consumption, Spring Data JPA, Hibernate ORM.
Frontend
:
HTML5, CSS3, JavaScript (ES6+), React.js, Angular, Responsive Design (Bootstrap, Tailwind CSS), AJAX, Fetch API, Client-side Routing, Webpack, npm, Vite
Databases
:
MySQL, PostgreSQL, MongoDB
Cloud/DevOps
:
AWS (EC2, S3, RDS, VPC, Route53, SNS, EMR, Lambda, Fargate), Jenkins, Kubernetes, OpenShift, CI/CD
Testing
:
JUnit 5, Mockito, Postman, REST Assured, Selenium (Basic)
Certifications
American Express
2021, 2022
Certificates of Appreciation for exceptional delivery and QA support.
Polytech Computer Services
Recognized as a key contributor during a critical production release.
Education
Maharishi International University, Fairfield, IA
Master of Science
2020
Master of Science in Computer Science
GPA: 3.63 / 4.0
Eritrea Institute of Technology, Asmara, Eritrea
Bachelor of Science
2010
Bachelor of Science in Chemical Engineering
GPA: 3.51 / 4.0
References
No items found.
