J

Juan Esteban Parra Parra

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Quindío Department, Colombia

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Résumé


Jobs verified_user 0% verified
  • R
    Full Stack Developer
    Rancho de Chucho
    Jan 2025 - Current (1 year 6 months)
    Developed and maintained RESTful APIs using Spring Boot/Kotlin with DDD patterns and Reactive Programming, handling recipe management, inventory tracking, and financial transactions with complex business logic. Designed and optimized PostgreSQL database schemas and data models ensuring ACID compliance, performance optimization through indexing strategies, and security through role-based access control. Built and deployed serverless backend services on AWS using Fargate containers, RDS PostgreSQL, and S3, achieving auto-scaling capabilities and 40% operational cost reduction. Collaborated with frontend developers to design API contracts and integrate backend services with Angular SPA, ensuring seamless data flow and optimal user experience.
  • Grid
    Infrastructure and DevOps Engineer
    Grid
    Jan 2023 - Dec 2024 (2 years)
    Designed and deployed distributed High-Throughput Computing (HTC) infrastructure with HTCondor middleware, integrating hybrid ARM (Raspberry Pi/Orange Pi) and x86 clusters with 64 ARM cores on Ubuntu Server. Implemented multi-level security architecture: Firewalls, VLAN segmentation, VPN tunnels, authentication, and static DNS for critical research infrastructure. Containerized scientific services with Docker to improve portability and scalability of distributed processing. Developed web dashboard with Angular/TypeScript for real-time HTC resource monitoring and administration. Achieved simulation execution time reduction from weeks to hours, significantly increasing the research group's processing capacity.
  • L
    Backend Developer
    La Arboleda Hotel
    Jun 2021 - Dec 2022 (1 year 7 months)
    Developed and maintained RESTful APIs for hotel reservation system using Java/Kotlin (Quarkus) and Node.js, implementing microservices architecture with Docker/Kubernetes for scalability. Designed and implemented polyglot persistence layer with optimized data models: PostgreSQL for transactional data, MongoDB for flexible content, and Redis (ElastiCache) for caching and distributed locking, achieving zero over-booking incidents. Built and deployed backend services on AWS using Amazon ECS (serverless containers), provisioned infrastructure as code with CloudFormation, and optimized database queries for 60% performance improvement. Collaborated with frontend team to design API endpoints and data contracts, ensuring efficient integration with
Education verified_user 0% verified
  • Servicio Nacional de Aprendizaje SENA
    Database Course
    Servicio Nacional de Aprendizaje SENA
    Apr 2023
    40-hour course on theoretical framework
  • Universidad del Quindío
    Undergraduate - Systems and Computer Engineering
    Universidad del Quindío
    Jan 2021 - Nov 2025 (4 years 11 months)
    Graduated
  • C
    High School Graduate
    Colegio de Los Hermanos Maristas, San José
    Dec 2018
    Graduated
  • B
    Academic English Language Knowledge Program
    BNC Colombo Americano Institute
    Dec 2017
    800-hour course, advanced english level
Projects (professional or personal) verified_user 0% verified
  • A
    Algorithms and Data Structures (Leetcode) - Java and Kotlin
    Jan 2023 - Current (3 years 6 months)
    Solutions to competitive programming problems and technical interview preparation.
  • R
    Restaurant ERP System with Spring Boot and Java
    Feb 2025 - Current (1 year 5 months)
    Transaction management, inventory, role-based users, and PostgreSQL persistence.
  • B
    Bibliometric Analysis Application with Kotlin
    May 2025 - Current (1 year 2 months)
    RIS metadata analysis, data visualization with Python, JavaScript, Kotlin and Bash.
  • O
    Online Assessment Platform with Spring Boot and Angular
    May 2023 - Current (3 years 2 months)
    Test creation and management using Oracle Database PLSQL procedures.