Java Full Stack Developer
Resume:
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Chinese
English
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Football
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Damian Marquez
Java Full Stack Developer React & Angular Specialist Dynamic Full Stack Developer with 8+ years of experience designing scalable web applications and robust backend systems. Specialized in React and Angular for building dynamic, responsive UIs, and skilled in backend development with Java/J2EE, Spring Boot, Spring MVC and RESTful APIs. Proven expertise in microservices architecture, database optimization, and cloud deployments. Adept at integrating modern DevOps practices to ensure efficient and reliable software delivery.
Education
Work experience
damian.marqueztexas@g
mail.com
Baylor ST, Fort Worth,
Texas
Date of birth 09/17/1997
Driving License(C)
@damian-marquez
Bachelor's Degree
From September 2015 to April 2019 National University San Diego, CA, USA FULL STACK ENGINEER
From January 2023 to February 2024 TEKsystems Remote Developed a dynamic eCommerce frontend using React, leveraging Redux Toolkit for state management and React Query for efficient data fetching. Implemented a component-driven architecture using Storybook, improving consistency across the UI and reducing development time by 25%. Enhanced application performance by optimizing React Suspense for lazy- loading and code splitting, leading to a 10% reduction in initial load times. Collaborated with backend teams to integrate APIs and manage data flow, ensuring seamless communication between React and Spring Boot services.
Architected and deployed microservices using Spring Boot, integrating with OAuth2.0 and JWT for secure authentication. Leveraged gRPC for efficient inter-service communication.
Designed and implemented high-performance RESTful APIs to handle millions of transactions, ensuring <200ms response times through advanced database indexing and query optimization.
Improved system throughput by 20% by integrating Redis caching for high- frequency data requests and optimizing PostgreSQL query execution plans. Orchestrated deployments on Google Kubernetes Engine (GKE) with CI/CD pipelines using GitHub Actions, ensuring zero downtime during releases. Key Accomplishments:
Delivered a user-friendly, mobile-responsive interface, increasing user engagement by 20%.
Optimized SEO and page speed with Next.js for server-side rendering. Reduced API latency by 10% through the implementation of advanced caching layers and optimized serialization methods. Improved service fault tolerance by integrating distributed tracing with Zipkin and Sleuth.
Work experience
Junior Full Stack Developer
From March 2021 to January 2023 Insight Global Remote Designed a financial reporting system with Angular, using RxJS for real-time data streams and NgRx for state management.
Built complex Reactive Forms for multi-step data entry, integrating validation, conditional logic, and API interactions seamlessly. Optimized performance with Ahead-of-Time (AOT) compilation and lazy- loaded Angular modules.
Developed RESTful APIs using Spring MVC, enhancing financial analytics by reducing query execution times with advanced JPA queries. Automated deployment pipelines with GitLab CI/CD, reducing release cycles by 20%.
Built a modular backend architecture using Spring MVC for financial data processing, ensuring high scalability and adherence to security standards
(PCI DSS).
Designed flexible GraphQL endpoints to streamline data retrieval for complex analytics dashboards, reducing data payloads by 20%. Enhanced PostgreSQL performance by implementing materialized views and stored procedures, cutting reporting query times from 2 seconds to under 500ms.
Hardened APIs with Spring Security, including rate-limiting and anti-CSRF measures, ensuring compliance with OWASP standards. Integrated RabbitMQ for asynchronous task processing, enabling background job handling and reducing application bottlenecks during high- traffic periods.
Key Accomplishments:
Created reusable Angular Material components, improving code maintainability across projects.
Improved data processing speed by 25% with Redis caching and Angular API optimizations, enhanced scalability by 20% through microservices, and reduced infrastructure costs by 10% via query optimizations. Java Full Stack Developer(Backend focused)
From January 2019 to March 2021 ZenOne Austin, TX, USA Created reusable React hooks for API interactions, reducing boilerplate code and increasing team efficiency.
Developed a real-time messaging system using WebSockets and optimized frontend performance with memoization and React Profiler. Designed and implemented RESTful APIs in Spring Boot to support the frontend, ensuring 99.9% uptime and secure data transactions. Created secure and scalable backend systems with Spring Boot, integrating with external APIs via REST and gRPC for data synchronization across third- party services.
Built a real-time data ingestion pipeline using Apache Kafka, handling high- throughput transactional data with guaranteed delivery. Designed sharded database architectures in PostgreSQL for horizontal scaling, supporting millions of records with minimal latency. Key Accomplishments:
Reduced page load times by 30% through React Lazy Loading and optimized database queries with PostgreSQL.
Reduced downtime during deployments to zero by implementing blue- green deployment strategies with Kubernetes.
Increased backend efficiency by 35% using multi-threaded processing and optimized SQL joins.
Skills
DevOps & Cloud
Tools: Docker, Kubernetes, Terraform, Jenkins, GitHub Actions, GitLab CI/CD Platforms: AWS (Lambda, S3, RDS), Google Cloud Platform (GKE, Pub/Sub), Azure Backend
Java: Spring Boot, Spring MVC, Spring Security, Hibernate, JPA, OAuth2.0, JWT, Microservices
APIs: RESTful APIs, GraphQL, WebSocket, gRPC, Maven Database: PostgreSQL, MySQL, MongoDB, Redis, ElasticSearch Node, C#
Frontend
React: React Hooks, Context API, Redux Toolkit, Next.js, React Query, React Testing Library
Angular: Angular Material, RxJS, NgRx, Angular CLI, Protractor, TypeScript, Reactive Forms
UI/UX: Tailwind CSS, Styled Components, SCSS, Bootstrap Projects
https://www.redflagai.co/
Developed microservices architecture using Spring Boot and Apache Kafka for real-time content analysis. Ensured secure data transfer and authentication through JWT.
Designed an admin dashboard for healthcare management using Angular Material for consistent UI and NgRx for advanced state management. Implemented RxJS observables for real-time updates on patient data, reducing response times by 20%.
Technologies: Java, Spring Boot, Apache Kafka, PostgreSQL, Docker, GKE, JWT, Angular, NgRx, RxJS, SCSS
https://enfuse.io/
Designed workflow automation using Spring Boot and Hibernate, optimizing business processes. Deployed the solution on GKE using Docker for seamless scaling.
Built a workflow automation platform with React and GraphQL, enabling dynamic form generation and interactive charts with Chart.js. Technologies: Java, Spring Boot, Hibernate, Docker, GKE, PostgreSQL, React, GraphQL, Styled Components
https://www.curahealth.org/
Built an admin portal for real-time patient management using Angular Material and NgRx for state management.
Designed RESTful APIs with Spring Boot to handle role-based data access securely.
Technologies: Java, Spring Boot, Spring Security, Cloud Firestore, Docker, Angular, NgRx, RxJS, Spring Boot, NginX, GKE.
https://www.activeprime.com/
ActivePrime provides data quality solutions to enhance and maintain the accuracy of customer relationship management (CRM) data. Tech Stack: Java Spring framework, Angular, SQL Server, Azure Functions
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