Judgment
I understand the problem before writing code
I translate ambiguous needs into clear technical decisions: domain, boundaries, data, security and operations.
Available for hire
Alberto
Llanos
Designing backends, automation and infrastructure that move products forward
Senior Backend Developer with 5+ years turning ambiguous product problems into secure APIs, cloud architectures and scalable systems with Python, Django, FastAPI and AWS.
- ✓ Migrated 40+ legacy services to AWS serverless, achieving −30% cost reduction.
- ✓ Strong technical judgment: DDD, security, observability, CI/CD and performance.
- ✓ Backend-first, full-stack capable, with strong AI, automation and product focus.
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Where I create the most value
🧠
Backend Architecture & DDD
Designing maintainable domains, APIs and data models with Django, DRF, FastAPI and PostgreSQL.
☁️
Cloud, Serverless & DevOps
AWS migrations, Lambda, API Gateway, ECS/ECR/RDS, Docker, pipelines, monitoring and reliable deployments.
🤖
AI, Agents & Automation
Agent orchestration with FastAPI, CrewAI, OpenAI, Claude Code, n8n and automated workflows.
🔒
Security, Quality & Operations
Authentication, RBAC, audit trails, observability, testing, traceability and secure production practices.
🚀
End-to-End Product Delivery
I go beyond the ticket: connecting business, UX, data, backend and infrastructure to ship real value.
📊
Data & Integrated Systems
Snowflake ETLs, banking integrations, e-commerce, SAP/NetSuite and systems with multiple stakeholders.
Demonstrable seniority
I do not just code: I push better decisions
My edge is combining fast execution with architectural thinking, product awareness and operational ownership.
Proactivity
I propose improvements, not just execute tickets
I look for automation, simplification, cost reduction and better experiences for users and teams.
Operations
I build with production in mind
I care about logs, deployments, monitoring, errors, performance and maintenance after the merge.
Team
I raise the quality of technical conversations
I ask the hard questions early, document decisions and help teams choose better paths.
My Journey
5+ years building software in demanding contexts: banking, audit, AI, data, e-commerce, legaltech and automation. My career grew fast because I learned to deliver, propose and take ownership.
5+
Years of Experience
20+
Completed Projects
40+
Migrated Services
−30%
AWS Costs
Featured Projects
Real cases where I connected backend, cloud, data, automation and AI to solve business problems, not just technical tickets.
Django React AWS
AuditBrain
2026Full-Stack
Agentic audit platform where AI agents are embedded into ABE PRO and ABI to make audit workflows easier for auditors and clients.
AI Agents PostgreSQL DRF
FastAPI CrewAI Railway
NexAgency
2025Full-Stack
Platform for creating agents with tools, forms and triggers to perform automated tasks.
Next.js AI Agents
NestJS React TypeScript
Welto
2025Full-Stack
Platform built from zero to manage food-benefit and meal-voucher cards, enabling purchases across digital platforms and POS.
PostgreSQL AI
Python AWS Lambda API Gateway
Ruta Digital
2024Full-Stack
AWS migration of 40+ Java/OpenLegacy services to serverless Python architecture with measurable cost reduction.
DynamoDB S3 Secrets Manager
+2 more
Django PostgreSQL Azure
Mi Expediente
2025Backend
Multi-country, multi-role app for employee document digitization and management.
DDD
React Vite Shadcn
Creditex
2025Full-Stack
Debt collection management platform for tracking bank loan clients and campaigns.
Django n8n WhatsApp API
Django PostgreSQL HTML
DTHive (Banco Aliado)
2025Backend
Backoffice dashboard for managing bank account creation requests.
JavaScript CSS
Django Python AES256
Service Tester
2024Full-Stack
Postman-like tool with AES256 encryption/decryption SDK for testing secured APIs.
Cipher Cryptography
FastAPI Snowflake Python
Beazley
2025Data
ETL pipeline development with Snowflake integration for insurance data processing.
ETL Data Engineering