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 meshoppipai-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 · 3 apps in production
Shoppipai
Enterprise E-Commerce · Full-Stack Monorepo · 3 apps
Full-stack product across 3 independent apps: Django backend (27 DDD modules · 16,867 tests · 91.76% coverage), React + Vite customer storefront and Next.js + shadcn multi-tenant staff dashboard. Saga + Outbox, Stripe/Wompi payments, DIAN invoicing and RAG semantic search.
- Backend · Django 5.2 + DRF + Strawberry GraphQL · 27 DDD bounded contexts · hexagonal architecture · 16,867 tests at 91.76%
- Storefront · Vite 7 + React 19 + TypeScript · MVVM + Adapter pattern · React Compiler · Playwright × 6 configs · Lighthouse CI
- Dashboard · Next.js 16 + shadcn/ui + Tailwind v4 · multi-tenant via X-Tenant-Id · virtualised TanStack Table · Server Components
- Cross-stack · shared OpenAPI contract · type-safe Orval SDK · Saga Pattern + Outbox · DIAN/Factus invoicing · pgvector RAG
View demo Read case study Private repository · 3 independent apps · 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 6 + DRF · type-safe
Production-grade e-commerce REST API with Redis caching, composite DB indexes, RBAC (anonymous/user/admin) and analytics endpoints. Strict mypy across the codebase with zero suppressions, 28 integration tests passing.
- Type-safe: mypy strict across the codebase · zero `# type: ignore`
- Redis caching with smart invalidation on writes (CachingMixin)
- Composite database indexes on hot query paths (name+category, price+is_active)
- django-filter integrated across all endpoints · admin-only Reports endpoint
jobscolombia · v0.2.0
$ jobscolombia score --input jobs.csv
Loading 1,247 listings …
Detecting tech stack ▰▰▰▰▰
→ Excelente · 84 jobs
→ Bueno · 312 jobs
→ Regular · 540 jobs
Descartados: 311 (blacklist + low score)
→ jobs_scored_20260601.csv
$
pip install jobscolombia 04 Open Source · v0.2.0
JobsColombia
Python Library · Published on PyPI
Python library published on PyPI that scores, classifies and enriches tech job listings from the Colombian market. Relevance algorithm 0-100 based on stack, seniority and work modality.
- Published on PyPI · `pip install jobscolombia` (v0.2.0, Hatchling build)
- CI/CD with GitHub Actions · Codecov coverage · Ruff + mypy in pipeline
- Relevance scoring 0-100 · classification Excellent/Good/Regular/Discarded
- Automatic tech stack identification from job titles and descriptions
- Standardised CSV export · company blacklist · configurable weights via env
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 GitHub Actions Sentry Prometheus OpenTelemetry Next.js React TypeScript Tailwind shadcn/ui Python JavaScript / TypeScript SQL Bash Django Django REST Framework FastAPI Strawberry GraphQL Celery PostgreSQL MySQL / MariaDB pgvector Redis Meilisearch Docker Kubernetes Linux GitHub Actions Sentry Prometheus OpenTelemetry Next.js React TypeScript Tailwind shadcn/ui
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
- GitHub Actions
- Sentry
- Prometheus
- OpenTelemetry
Frontend
- Next.js
- React
- TypeScript
- Tailwind
- shadcn/ui
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.