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Software Engineer · Solutions Architect · Cloud focused · Developer
Ecuador · Spanish (native) · English (B2+)
Hi, I’m Jefferson Leon 👋
Software Engineer · Solutions Architect · Cloud focused · Developer
Arcitura
Arcitura
AWS Solutions Architect
Amazon Web Services
I build reliable, scalable systems — from event-driven backends and microservices to cloud-first architectures on AWS.
I enjoy turning complex problems into clean designs and production-ready code that balances performance, resilience, and developer happiness.
About me
- 7+ years across fintech, telecom, and SaaS
- Microservices, event-driven, hexagonal, DDD, and pragmatic SOA
- AWS heavy hitter across compute, serverless, decoupling, data, and observability domains
- CI/CD pipelines, code quality, and observability-first mindset
- I value clarity, documentation, feedback loops, and focused delivery
- Performance geek and optimization fan — happy mad scientist ⚗️
- Driven by new challenges and constant learning
EXPERIENCE
Backend Engineer • Alegra
2024 — 2025
Modernizing fintech services by migrating PHP/Laravel systems to event-driven Node.js microservices on AWS.
Full-stack Engineer • ConsulTI / Externo Telconet
2021 — 2024
Built telecom microservices with Spring Boot and Angular, orchestrated via Docker Swarm and Kafka-driven messaging.
Full-stack Engineer • Emtipay
2023 — 2024
Delivered fintech platform features across React, React Native, and Next.js with Node.js APIs and payment integrations.
Full-stack Developer • Ambiensa
2021
Defined enterprise architecture standards, ADRs, and performance testing for CRM modernization on AWS.
Full-stack Developer • Novosoft S.A
2020 — 2021
Shipped React and React Native apps backed by Laravel services on AWS infrastructure for client management.
Full-stack Developer • Austrosoft Cia. Ltda.
2020
Implemented e-invoicing and accounting flows with React frontends, Laravel APIs, and MySQL.
Full-stack Developer • Interbytes
2017 — 2019
Built ISP client management platform covering plans, router integration, and network traceability.
Core Strengths
Focused on sound architecture, resilient delivery, and developer-friendly practices across the stack.
Backend & APIs
Frontend & Mobile
Data & Messaging
Cloud & AWS
Ops & Platform
Architecture
Personal Projects
Microservices ecosystem with Laravel + React, RabbitMQ messaging, and DDD/Hexagonal patterns for resilient flows.
Order service with CQRS + Event Sourcing, SQLite projections, outbox dispatcher, metrics, and k6 performance tests.
End-to-end HLS streaming platform featuring transcoding pipelines, search, analytics, and edge delivery.
Open-source Kavita companion with OPDS browsing, offline downloads, and sync across Android/iOS.
Cross-platform tray app to monitor dev ports & Docker workloads with smart kill and resource alerts.
Rust fantasy console compiling games to WASM with a minimal runtime powered by Winit and Pixels.
Provider-agnostic LLM gateway with quotas, rate limits, streaming, and privacy controls backed by Rust.
Chrome extension to capture timestamped YouTube notes and jump back instantly to recorded markers.