01 Architecture
Systems that scale.
Domain-Driven Design, layered separation and SOLID principles. Code reads the way the business talks.
- Bounded contexts
- Hexagonal
- CQRS where it fits
Open to backend roles
I build scalable software and solid architectures.
Backend Engineer with 5+ years shipping production Python systems for e-commerce, telecom and enterprise. Specialised in Domain-Driven Design and high-traffic APIs. Open to full-time roles, contracts and consulting.
How to hire meproduction-cluster.svc
LIVE
01 — Philosophy
Three principles, one standard.
How I approach every product, from the first line of code to production deploy. Over five years shipping Python backends in e-commerce, telecom and enterprise — code that reads, tests and holds up under real load.
02 Quality
No surprises on deploy day.
Automated tests, observability and continuous review. Zero surprises on deploy day.
- Test coverage
- OWASP review
- Hardened CI/CD
03 Ecosystem
Backends that integrate.
Robust Python backends seamlessly integrated with dynamic Next.js frontends.
- REST + GraphQL
- Async-first
- Crisp DX
02 — Projects
Selected work.
Real systems in production. Audited code, documented decisions.
shoppipai.com
NEW DROP
Modular monolith.
Ship fast.
Ship fast.
Shop now →
POST /api/v1/orders → 201 01 Active development
Shoppipai
Enterprise E-Commerce Platform
Enterprise e-commerce platform structured in 27 DDD modules. Dual REST + GraphQL API, Stripe/Wompi payments with saga flow, DIAN electronic invoicing and semantic search.
- Dual REST + GraphQL API on Django 5.2 LTS, structured in 27 DDD modules
- Multi-tenant system with Free / Pro / Enterprise plans and per-tenant isolation
- Stripe + Wompi payments with saga + Outbox flow; DIAN electronic invoicing via Factus
- Enterprise security (JWT RS256, 2FA, RBAC, audit log) with Pytest 90%+ coverage
Private repository · Stack and architecture documented
~/normadocs
$ normadocs build thesis.md
Reading thesis.md … ok
Applying APA template … ok
Generating cover, ToC, refs … ok
→ thesis.docx · 142 pages · 2.1 MB
✓ Built in 1.34s
$
02 Maintained
normadocs
Open Source · CLI
MIT-licensed CLI that converts Markdown into APA 7th edition and ICONTEC NTC 1486 academic documents in one command.
- Auto-generated cover page, table of contents and bibliography
- CLI and importable Python library with PEP 561 typing
- Quality gates: lint, tests and security review in CI
/docs · OpenAPI 3.1
GET /products 200
POST /cart/items 201
GET /cart 200
POST /orders 201
PATCH /orders/{id} 200
DELETE /cart/items/{id} 204
03 Open Source
ecommerce-api
REST API · Django + DRF
Production-grade e-commerce REST API with Redis caching, optimised DB indexes, RBAC (admin/read-only) and analytics endpoints. 672 lines of test coverage.
- Redis caching with smart invalidation on writes (CachingMixin)
- Composite database indexes on hot query paths
- django-filter integrated across all endpoints
- Custom endpoints: featured, discounted, reports (admin-only)
03 — Stack
Tools I use daily.
My core stack. I learn whatever the problem requires, but I know these deeply.
Python JavaScript / TypeScript SQL Bash Django Django REST Framework FastAPI Strawberry GraphQL Celery PostgreSQL MySQL / MariaDB pgvector Redis Meilisearch Docker Kubernetes Linux Sentry Prometheus OpenTelemetry Next.js React Python JavaScript / TypeScript SQL Bash Django Django REST Framework FastAPI Strawberry GraphQL Celery PostgreSQL MySQL / MariaDB pgvector Redis Meilisearch Docker Kubernetes Linux Sentry Prometheus OpenTelemetry Next.js React
Languages
- Python
- JavaScript / TypeScript
- SQL
- Bash
Backend
- Django
- Django REST Framework
- FastAPI
- Strawberry GraphQL
- Celery
Data
- PostgreSQL
- MySQL / MariaDB
- pgvector
- Redis
- Meilisearch
Infra & Observability
- Docker
- Kubernetes
- Linux
- Sentry
- Prometheus
- OpenTelemetry
Frontend
- Next.js
- React
04 — Journey
From support to architecture.
Five years building systems and solving real problems in production.
2021 — 2022
Tech Support & Systems
CDA Automor 14 Calimax · Cali
Adopted DevOps practices and wrote my first Python automation: log rotation, disk monitoring and automated backup policies.
2022 — 2023
Inventory & Automation Analyst
Tigo Colombia
Custom Python apps that replaced manual Excel processes for inventory control across regional warehouses · ETL pipelines from legacy CRM and POS systems · Basic forecasting models for stock planning.
2023
Python Developer & Tech Support
American Telnet · Cali
Python automation suite (pandas, requests, paramiko) and Selenium RPA. Middleware APIs between CCTV hardware and central platforms over HTTP/REST and WebSockets. SLA cut by 70%.
2024
L2/L3 Support Analyst
SIESA · Cali
Resolved L2/L3 escalations on SIESA ERP/POS at enterprise clients: deep software-level debugging, commercial master setup, and server deployments. Practical foundation working with large systems running in real production.
2025
Tech Support & Systems
CDA La Luna · Cali
Linux/Windows server administration + automated backup policies and security hardening. Infrastructure base that translates today into deploy and observability of backend systems.
2025 — Present Actual
Backend Engineer — Shoppipai
Independent · Cali
Enterprise e-commerce architecture across 27 DDD modules with multi-tenant isolation, dual REST + GraphQL API (Django 5.2 / Strawberry), Stripe/Wompi integration, DIAN invoicing, semantic search via pgvector and Sentry/Prometheus observability.
05 — Contact
Want to build something serious?
Backend Developer based in Cali, Colombia · open to remote full-time roles, project contracts or architecture consulting. I work with Python, Django, FastAPI, GraphQL and DDD. I reply within 24 hours.