Portrait of Leonardo Majado

Leonardo Majado

Senior Software Engineer
21+ years of experience
Location: Madrid, Spain
Email: leonardo.majado@gmail.com
LinkedIn: /in/leonardomajado
Profile

Software Engineer specialized in PHP/Laravel and Vue with experience in tech, logistics, retail, SaaS, publishing, and telecom. Focused on backend development, integrations, problem-solving, and delivering software aligned with real business needs.

Highlights / Achievements
  • Backend experience in high-traffic SaaS platforms (healthcare, publishing, automation).
  • Improved API stability, workflows, and backend architecture using DDD principles.
  • Delivered integrations with ERP systems, GraphQL, SOAP, RFID, and internal APIs.
  • Led teams and coordinated development efforts with full end-to-end ownership.
  • Adaptable across logistics, retail, telecom, SaaS, publishing, and healthcare environments.
  • Strong communication and business understanding working with finance, logistics, HR, and operations.
  • Modernized and maintained legacy systems, managing data mappings, migrations, and internal tools.
Tech Stack
Core
PHP · Laravel / Lumen Vue.js JavaScript TypeScript Node.js
Data & Infrastructure
MySQL / MariaDB MongoDB SQL Server Redis RabbitMQ Docker AWS Linux
Architecture & Integrations
DDD (Domain-Driven Design) GraphQL REST APIs SOAP ERP integrations Swagger
Languages

Spanish: Native English: Professional working proficiency

Professional Experience
Senior PHP Backend Developer · DocPlanner
2023 – Present · Madrid, Spain
Healthcare SaaS · High-traffic platform
  • Developed and maintained backend services for high-traffic healthcare SaaS.
  • Improved API performance and stability; contributed to DDD-based architecture.
Stack: Laravel Lumen, MySQL/MariaDB, Redis, Vue/TS, RabbitMQ, Docker, Git
Sr Backend Developer · Invofox (YC S22)
2023 · Madrid, Spain
Data-driven SaaS · Automation & document processing
  • Built backend features for automation and document-processing products.
  • Implemented ERP/API integrations and improved data flow reliability.
Stack: Node.js, MongoDB, MS Graph, Jest
Sr Backend Engineer · Zinio
2022 – 2023 · Barcelona, Spain
Digital publishing · Global platform
  • Supported backend services for digital publishing products.
  • Improved APIs and stabilized long-standing legacy components.
Stack: PHP frameworks, MySQL, Angular, AWS, Docker, Nginx
Sr Full-Stack Developer · Self-Employed
2018 – 2022 · Buenos Aires, Argentina
Autonomous consulting · Retail, logistics & tech
  • Delivered full-stack solutions and business-critical systems for multiple clients.
  • Improved internal workflows and supported long-term engagements.
Stack: Laravel, MySQL, Vue.js, GraphQL, Docker, Linux
Senior Software Engineer · Mimo & Co
2017 – 2018 · Buenos Aires, Argentina
Retail · Internal systems & access control
  • Developed internal software for retail operations with .NET/SQL backend.
  • Integrated RFID-based access control data for secure entry/exit flows.
Stack: .NET, SQL Server, RFID, Scrum
Earlier Career
IT Leadership & Analysis · Grupo Ultramar

IT Team Lead & Senior IT Analyst roles over 10+ years, delivering internal systems for logistics, foreign trade, HR, finance, and operations. Led teams, managed vendors, and aligned IT solutions with business processes.

Co-Owner · Axioma

Co-managed a consulting and software development operation delivering web, data, and client-server solutions using VB.NET/C#, SQL Server, PHP/Laravel, and MySQL.

Education

Bachelor's in Software Engineering – UAI (2009–2011)
Systems Analyst – UAI (2001–2005)