08/24/2026 updated
100 % available
Senior Full Stack Engineer & Technical Lead
Escaldes, Andorra
Only remote
Bachelor of Engineering (B.E.) Computer Science, Universidad de CordobaAbout me
Senior full-stack engineer, technical lead, and founder with 10+ years of experience delivering multi-tenant SaaS products, AI agents, real-time data pipelines, secure cloud infrastructure and complex migrations. Trusted by early and growth stage startups to own the entire development lifecycle.
JavaScriptGoogle BigQuerySoftware as a ServiceCloud EngineeringDevOpsPostgreSQLMongoDBNode.jsTypeScriptWebSocketVue.jsBackendWebpackStripeFull Stack Development
TypeScript & Node.js Backend Development
Extensive expertise in TypeScript and Node.js for building scalable backend systems, REST APIs, GraphQL services, and WebSocket integrations across multiple enterprise-grade SaaS platforms.
Cloud Infrastructure & DevOps
Deep hands-on experience with AWS and GCP, including Terraform-managed infrastructure, Docker, Kubernetes, CI/CD pipelines, Grafana, Prometheus, and Cloudflare for secure and resilient cloud deployments.
AI Agents & LLM Integration
Practical experience engineering multi-step AI agents using LangChain, LangGraph, MCP, RAG, and OpenAI/Claude APIs, applied to real-world SaaS products and enterprise marketing platforms.
Frontend Development with React & Vue.js
Solid proficiency in building modern frontend applications using React, Vue.js, HTML, CSS, TailwindCSS, Webpack, and Vite, with experience in end-to-end testing via Playwright.
Database Management & Data Pipelines
Strong command of PostgreSQL, MongoDB, Redis, Apache Kafka, Apache Druid, and BigQuery for designing and operating real-time data pipelines and large-scale data processing systems.
Multi-Tenant SaaS Architecture
Proven track record architecting and scaling multi-tenant SaaS platforms serving 100+ customers and millions of daily visitors, including microservices design and zero-downtime migrations.
Payments & Security
Hands-on experience implementing Stripe-powered payment and subscription solutions, OAuth 2.0 SSO, and RBAC for secure multi-tenant access control and user management.
Engineering Practices & Team Leadership
Experience leading distributed engineering teams, conducting code reviews, sprint planning, technical hiring, and applying SOLID principles, TDD, and agile delivery methodologies.
Python & C++ Programming
Additional programming language skills in Python and C++, complementing primary expertise in TypeScript and JavaScript for versatile software development tasks.
Extensive expertise in TypeScript and Node.js for building scalable backend systems, REST APIs, GraphQL services, and WebSocket integrations across multiple enterprise-grade SaaS platforms.
Cloud Infrastructure & DevOps
Deep hands-on experience with AWS and GCP, including Terraform-managed infrastructure, Docker, Kubernetes, CI/CD pipelines, Grafana, Prometheus, and Cloudflare for secure and resilient cloud deployments.
AI Agents & LLM Integration
Practical experience engineering multi-step AI agents using LangChain, LangGraph, MCP, RAG, and OpenAI/Claude APIs, applied to real-world SaaS products and enterprise marketing platforms.
Frontend Development with React & Vue.js
Solid proficiency in building modern frontend applications using React, Vue.js, HTML, CSS, TailwindCSS, Webpack, and Vite, with experience in end-to-end testing via Playwright.
Database Management & Data Pipelines
Strong command of PostgreSQL, MongoDB, Redis, Apache Kafka, Apache Druid, and BigQuery for designing and operating real-time data pipelines and large-scale data processing systems.
Multi-Tenant SaaS Architecture
Proven track record architecting and scaling multi-tenant SaaS platforms serving 100+ customers and millions of daily visitors, including microservices design and zero-downtime migrations.
Payments & Security
Hands-on experience implementing Stripe-powered payment and subscription solutions, OAuth 2.0 SSO, and RBAC for secure multi-tenant access control and user management.
Engineering Practices & Team Leadership
Experience leading distributed engineering teams, conducting code reviews, sprint planning, technical hiring, and applying SOLID principles, TDD, and agile delivery methodologies.
Python & C++ Programming
Additional programming language skills in Python and C++, complementing primary expertise in TypeScript and JavaScript for versatile software development tasks.
Experience
Professional experience10+ years
Freelancer since2017
Languages
EnglishFluentSpanishNative speaker
Project history
Lead development for an AI-powered multi-tenant SaaS platform for enterprise marketing campaigns. Assembled a small team of 3 engineers and led product development from ideation to launch. Engineered multi-step AI agents leveraging LangChain, LangGraph, MCP and RAG. Tech stack: TypeScript, Node.js, PostgreSQL, AWS, Vue.js, Express.js, Playwright.
Core contributor to nodescript.dev, a no-code SaaS platform for data pipelines and automation. Served as data broker for Google and Microsoft, delivering curated datasets through automated cloud data pipelines for acquisition, processing, and integration into internal data lakes. Tech stack: TypeScript, Node.js, MongoDB, GCP, Vue.js, Kubernetes, Grafana, Prometheus.
Built and owned a Stripe powered payment solution for debt collection at Bulb Energy, simplifying payment processing, repayment flows, and government benefits access for end-users; recovered more than 300K in debt in one quarter. Collaborated on the zero-downtime migration of Bulb Energy's 1.5M customers to Octopus Energy. Tech stack: TypeScript, Node.js, PostgreSQL, GCP, React, microservices, GraphQL, Kubernetes.