I’m looking for a backend developer role where I can build and improve scalable systems, work with modern technologies like Spring Boot and Node.js, and continue growing my skills in system design and architecture. I value collaborative teams, real-world problem solving, and opportunities to take ownership of backend features and contribute to meaningful products.
Open to opportunities
Cristian Valderrama
@cristianvalderrama
Junior Backend Developer building scalable APIs with Spring Boot, Node.js, and SQL/NoSQL. Focused on system design and clean architecture.
ColombiaWhat I'm looking for
Junior Backend Developer with hands-on experience building and maintaining backend systems using Spring Boot, Node.js, and relational databases such as MySQL and PostgreSQL. I have worked on real-world applications, focusing on API development, database design, and system scalability.
Additionally, I have experience mentoring students in relational databases, reinforcing my communication skills and technical foundations.
I am passionate about backend development, system design, and continuously improving my skills to build efficient, scalable, and production-ready applications.
Experience
Work history, roles, and key accomplishments
Current
Junior Backend Developer
NOBUGS SAS
Feb 2026 - Present (4 months)
Develop and maintain backend features for a ticket management platform using Spring Boot and PostgreSQL, including seat management workflows. Fixed critical issues in ticket commission calculations and N+1 query performance, and refactored persistence to dynamically generate email content.
MU
Relational Databases Mentor
Minuto de Dios University Corporation (UNIMINUTO)
Sep 2025 - Nov 2025 (2 months)
Provided academic support in relational database technologies (MySQL and PostgreSQL) through practical sessions. Helped students strengthen skills in data modeling, normalization, and writing SQL queries through guided exercises and problem-solving.
Education
Degrees, certifications, and relevant coursework
UNIMINUTO
Technologist Degree in Software Development, Software Development
2024 -
Universidad de los Llanos
English Program (B2 Level - Vantage)
2023 - 2025
Tech stack
Software and tools used professionally
Availability
Open to opportunities
Location
ColombiaAuthorized to work in
Portfolio
portfolio-cv-swart-sigma.vercel.appJob categories
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