BACKEND
ARCHITECT &
SOFTWARE ENGINEER
Distributed Systems Specialist | Microservices Architecture | Cloud Infrastructure
4
Production Systems
10+
Technologies Mastered
2+ Y
Engineering Experience
Active
Available for Hire
Multilingual Software Developer (English C2) with 2+ years of hands-on experience building production-grade Distributed Systems and scalable backend architectures using Java (Quarkus, Spring Boot) and Python.
Specialized in Pragmatic DDD, Clean Architecture, and self-hosted infrastructure. Technical Mentor and Linux daily driver (Arch).
SELECTED WORK
MaviosCrochet
(White-Label E-Commerce Backend)
High-performance E-Commerce engine built on Pragmatic DDD and Hexagonal Architecture. Resilient system surviving 500 concurrent users with 0.00% error rate.
- Engineered Virtual Threads & Bulkheads for extreme resilience
- Implemented 3D Bin Packing Algorithm for dynamic shipping
- Built multi-gateway idempotent transactions with lock controls
StatioCore
Complete SaaS solution for parking management with high-performance Java backend. Demonstrates mastery of full software lifecycle from architectural design to cloud deployment on VPS.
- Engineered robust layered architecture with Spring Boot 3
- Orchestrated production deployment via Docker Compose
- Integrated RESTful APIs secured via JWT & RBAC
HexaTask
High-compliance Project Management platform applying Strict Hexagonal Architecture and Domain-Driven Design. Core domain is pure Java, completely decoupled from frameworks.
- Enforced strict domain purity using DDD Aggregates
- Engineered advanced security with Token Rotation
- Implemented full historical data auditing (@Audited)
QuantStox
Hybrid AI-powered ETL pipeline deployed on AWS to ingest, process, and analyze financial market data. Integrates ML models and GenAI for sentiment analysis.
- Built high-performance extraction engine with Pandas
- Containerized Keras models for numerical inference
- Simulated Data Lake architecture using AWS S3
Coinly
Production-grade backend for personal finance tracking using Kotlin. Moves beyond simple CRUDs to implement Modular Monolith structure with resilience mechanisms.
- Implemented Circuit Breakers for fault tolerance
- Enforced modular design with strict boundaries
- Configured real-time observability with Prometheus
TECHNICAL ARSENAL
LANGUAGES
- Java 17+ (Primary)
- Python (Data & ML)
- Kotlin
- TypeScript
- SQL & Bash
BACKEND & ARCH
- Quarkus
- Spring Boot 3
- Pragmatic DDD
- Hexagonal Architecture
- FastAPI & NestJS
INFRA & CLOUD
- AWS (S3, EC2) & DigitalOcean
- Docker Compose
- Traefik & Keycloak
- Grafana & Prometheus
- Linux (Arch)
- Nginx & CI/CD
DATA & TESTING
- PostgreSQL
- MongoDB & Redis
- JUnit & ArchUnit
- TestContainers & k6
- Flyway Migrations
BACKGROUND
Independent Software Engineer
Architecting & scaling B2B/B2C platforms.
Backend Developer & Technical Peer Tutor
Technical mentorship & code reviews.
Software Engineering
4.75 GPA | Focus on Algorithms & Arch.
Degree in Foreign Languages
Certifications
- freeCodeCamp (600h+)
- Dalhousie University (English Medium)
Languages
- Spanish (Native)
- English (C2 - Proficient)
- French (B2)
- German (B1)
- Italian (A2)
READY TO DEPLOY?
Open to remote & hybrid backend engineering roles.
Based in Barranquilla, Colombia
tony@tonys-dev.com