Simera Professional Key (SPK)

Alfonso G

El Salvador

Technical Lead

$ 4,200/month

9 yrs exp

Skills

  • Docker
  • Microservice
  • MongoDB
  • Node.js
  • PHP
  • PostgreSQL
  • Python
  • React
  • Redis
  • Typescript
  • BigQuery
  • C#
  • Cloud Functions
  • Cloud Run
  • Data Engineer
  • Digital Sales
  • Full Stack
  • Microservices
  • NestJS
  • NextJS
  • Phyton
  • Prisma
  • ReactJS
  • Transaction Processer
  • Python/R
  • RESTful APIs
  • Python3
  • Prompt engineering
  • Fullstack
  • Nuxt.js
  • Paython
  • Nest.js
  • Next.js
  • Next js
  • ChatGPT Prompt Engineering
  • REST APIs
  • Event-Driven Architecture
  • Full Stach
  • Transaction Tracking

Alfonso G

El Salvador

Technical Lead

$ 4,200 /month

Part Time: $ 480/month

9 yrs exp

Skills

  • Docker
  • Microservice
  • MongoDB
  • Node.js
  • PHP
  • PostgreSQL
  • Python
  • React
  • Redis
  • Typescript
  • BigQuery
  • C#
  • Cloud Functions
  • Cloud Run
  • Data Engineer
  • Digital Sales
  • Full Stack
  • Microservices
  • NestJS
  • NextJS
  • Phyton
  • Prisma
  • ReactJS
  • Transaction Processer
  • Python/R
  • RESTful APIs
  • Python3
  • Prompt engineering
  • Fullstack
  • Nuxt.js
  • Paython
  • Nest.js
  • Next.js
  • Next js
  • ChatGPT Prompt Engineering
  • REST APIs
  • Event-Driven Architecture
  • Full Stach
  • Transaction Tracking

Technical Lead

n1co — Fintech Platform
January 2025 - present

– Led a cross-functional team of frontend, backend, and QA engineers — setting technical direction, unblocking the team daily, and maintaining a high delivery bar in a fast-moving fintech environment. – Acted as the bridge between business and technology: partnered with Product to co-define the roadmap, challenge requirements, break down scope, and translate complex business needs into clear, executable technical plans. – Applied modern agile delivery practices — iterative scoping, continuous prioritization, and tight feedback loops — keeping the team consistently focused on the highest-impact work. – Mentored engineers across frontend, backend, and QA: led code reviews, drove architectural discussions, and actively removed blockers to keep individuals growing and the team unblocked. – Introduced AI-assisted development workflows (Claude Code, GitHub Copilot) — reduced PR review time, accelerated delivery cycles, and raised overall code quality across the team. – Thrived in a startup environment where priorities shift fast: adapted quickly, reduced scope proactively when needed, and kept engineering grounded in business reality. – Continuously explored new technologies and built proof-of-concepts to evaluate their potential business impact — bridging the gap between emerging tools and real product opportunities.

Senior Backend Engineer

n1co — Fintech Platform
January 2021 - January 2025

– Designed and maintained scalable backend services for digital wallets and transaction processing. – Built API-first architectures consumed by internal teams and external partners; improved performance through Redis caching, async processing, and DB optimization. – Deployed microservices and automations using GCP Cloud Functions, Cloud Run, Python scripts, and Google Apps Script. – Designed financial data pipelines using Hevo and BigQuery for reporting and reconciliation. – Contributed to secure API exposure, third-party integrations, and data protection practices.

Backend Engineer

Hugo — On-Demand Delivery
January 2018 - January 2021

– Built back-office backend services in PHP for a high-traffic, real-time delivery platform. – Integrated with Node.js core APIs (Parse Server, Moleculer); contributed to DB design and performance under peak load. – Gained hands-on experience in order management, transactional workflows, and logistics data models under strict availability requirements.

Smart Scores

Communication
60
Role Fit
95
Adaptability
80
Problem-solving
90

Smart Skills

beta