Johel Venegas
Backend Developer & DevOps Engineer
Specializing in system modernization and cloud-native architectures
Based in Costa Rica • UTC-6
About Me
Professional Background
Professional Background
I'm a Backend Developer and DevOps Engineer from Costa Rica, currently focused on system modernization and cloud-native architectures. With experience in both Python and Java ecosystems, I specialize in building robust APIs, optimizing database performance, and implementing CI/CD pipelines.
My current work involves developing RESTful APIs for electronic invoicing systems serving 150+ businesses, ensuring compliance with government regulations while maintaining high performance and reliability standards.
I'm passionate about DevOps practices and currently building a production-ready CI/CD pipeline for Python microservices, incorporating monitoring, logging, and infrastructure as code principles.
Location
Costa Rica
UTC-6
Experience
2+ Years
Backend & DevOps
Education
Systems Engineering
Latin University
Languages
Spanish, English
Fluent
Availability
- Available for: Full-time positions
- Contract work: Yes
- Remote work: Preferred
- Time zone: UTC-6 (Costa Rica)
Legacy System Modernization
Expert in migrating and modernizing legacy applications to modern architectures
RESTful APIs & Microservices
Designing and implementing scalable API solutions with microservices architecture
CI/CD Pipelines
Building robust deployment pipelines for automated testing and deployment
Performance Optimization
Optimizing database queries and application performance for better user experience
Available for international collaboration
My timezone (UTC-6) is ideal for collaboration with teams across the Americas and Europe. I'm experienced in remote work and can adapt to various time zones for meetings and project coordination.
Skills & Technologies
My technical expertise spans backend development, DevOps practices, and cloud-native architectures
Backend Development
DevOps & Cloud
Database
Frontend
Frameworks
Libraries
Additional Technologies
Technology Stack Overview
Featured Projects
A showcase of my recent work in backend development, DevOps, and system modernization
RESTful API serving 150+ businesses for electronic invoicing compliance with government regulations. Handles tax calculations, secure certificate management, and government API integration.
Tech Stack
Key Features
- Multi-tenant architecture supporting 150+ businesses
- Tax calculation engine with government compliance
- Secure P12 certificate system for digital signatures
- Government API integration for invoice validation
- High-performance database optimization
- Automated invoice generation and delivery
Production-ready CI/CD pipeline for Python microservices with comprehensive monitoring, logging, and infrastructure automation. Designed for scalable deployment workflows.
Tech Stack
Key Features
- Automated deployment pipeline with GitHub Actions
- Containerized microservices architecture
- Infrastructure monitoring with Prometheus & Grafana
- Centralized logging and error tracking
- Infrastructure as Code with Terraform
- Multi-environment deployment strategy
Enterprise System Modernization
Migration of legacy Oracle Forms applications to modern Java architecture. Improved performance, maintainability, and user experience while preserving business logic.
Tech Stack
Key Features
- Legacy Oracle Forms to Java migration
- Database query optimization and performance tuning
- Business logic adaptation and modernization
- Enhanced user interface with JSF
- Improved system maintainability
- Reduced technical debt
Interested in working together?
I'm always open to discussing new opportunities and interesting projects. Let's connect and explore how we can work together to bring your ideas to life.
Work Experience
My professional journey in software development and DevOps engineering
Software Developer
Key Responsibilities & Achievements
- Developed and maintained enterprise-level applications using Java and Jakarta EE technologies
- Migrated legacy Oracle Forms applications to modern Java architecture
- Optimized database queries and improved system performance by 40%
- Collaborated with cross-functional teams to deliver high-quality software solutions
- Implemented best practices for code quality and maintainability
Technologies Used
Freelance Developer
Key Responsibilities & Achievements
- Developed a comprehensive electronic invoicing API serving 150+ businesses
- Implemented secure P12 certificate system for digital signatures
- Built tax calculation engine with government compliance requirements
- Designed multi-tenant architecture for scalable business operations
- Integrated with government APIs for invoice validation and compliance
Technologies Used
Education
Bachelor's in Systems Engineering
Comprehensive education in software engineering, database systems, and software architecture.
Focus areas include backend development, system design, and modern software development practices.
Get in Touch
Ready to discuss your next project? I'm available for backend development, system modernization, and DevOps consulting. Let's build something amazing together.
Send a Message
Direct Contact
Schedule a Call
scheduleDescription
Availability
- Available for:Full-time positions
- Contract work:Yes
- Remote work:Preferred
- Time zone:UTC-6 (Costa Rica)