Leanderson Monteiro

LEANDERSON MONTEIRO

Software Engineer

Bachelor of Computer Science

About Me

Hello! I'm Leanderson Monteiro, passionate about the technology world. I started my journey in computer science in January 2010 and completed the course in December 2014.

I'm proactive, have a sense of responsibility, and I like to participate from the beginning of the project, including planning, architecture, development, delivery, and maintenance. I have already worked on several ongoing projects where I had easy adaptation.

I have solid knowledge in PHP, JavaScript, and OutSystems. I have experience since 2010 in systems development, always seeking to improve my knowledge in search of news and quality in software development.

Date of Birth: June 10, 1992
Phone: +351 917 447 583
Email: leanderson@lmonteiroms.com
Location: Lisbon, Portugal
Website: lmonteiroms.com

Skills

Languages

  • PHP
  • CSS
  • Dart
  • ES6
  • NodeJS

Database

  • MySQL
  • MsSQL
  • PostgreSQL
  • ElasticSearch
  • MongoDB
  • MariaDB

Frameworks/Libraries

  • Laravel
  • OutSystems
  • Lumen
  • React
  • Flutter
  • Angular
  • NodeJS
  • CodeIgniter
  • Zend Framework
  • CakePHP
  • jQuery
  • Bootstrap

Versioning

  • GIT
  • SVN

Experience

08/2021 - Present

Software Architect

Fidelidade (Outsourced by 5Estações)

Worked with the architecture team to evolve platforms, ensuring quality, integration, security, and alignment with Agile methodology and technical requirements.

  • I worked alongside the architecture team, contributing to the evolution and governance of the technological platforms supporting the company’s development. I assisted in defining best practices, conducting audits, and training teams to ensure code quality and architectural alignment. I collaborated with the architecture team to define the foundation of the digital platform, implement reusable components, and ensure integration with core business systems. I participated in the evolution of non-functional requirements, such as authentication and authorization, while enhancing infrastructure reliability through testing tools and automated anomaly detection.
  • I helped manage data archiving and masking in non-production environments, coordinated governance meetings, and monitored KPIs to ensure compliance with industry standards. I worked with cross-functional teams to manage environments and contributed to the continuous improvement of DevOps processes, ensuring full alignment with Agile methodology, security, and performance requirements.
OutSystems Javascript Integrations
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03/2019 - 08/2021

Tech Lead | Software Engineer

EDP (Outsourced by Novabase)

Lead app evolution, ensuring CI/CD, code quality, performance, security, monitoring, and alignment with business and architecture standards.

  • As a Software Engineer, I am responsible for ensuring the quality of all technical deliverables within the application, applying solid software engineering principles across design, development, maintenance, testing, and evaluation. I ensure the application meets performance expectations and business-defined SLAs, while having a deep understanding of its technical architecture, infrastructure, and functional context. I lead the technical evolution of the system, fostering a CI/CD-ready environment and ensuring compliance with security, development, architectural, and business continuity guidelines—including the resolution of security vulnerabilities. I actively identify and manage technical debt, supporting the Product Owner in prioritizing improvements, and ensure alignment with Platform Experts and Solution Masters to follow established frameworks and best practices defined by EDP. I oversee application documentation and CI configurations within ServiceNow (CMDB), monitor infrastructure costs and resource consumption, and define the necessary monitoring and alert mechanisms to support operations by the command center. In parallel, I contribute to system development alongside the team, ensuring high-quality code and project standards.
PHP Laravel RestFul APIs Angular 7/8 MySQL Unit Tests Jenkins CI/CD Git
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12/2017 - 03/2019

Senior Software Engineer

Doinn

Web developer maintaining PHP and OutSystems apps at Grupo Ser Educacional, also involved in migrating the PHP system to the OutSystems platform.

  • Mainly responsible for backend development, I worked on integrations with various housing rental platforms such as Booking and Rentals United, among others. I consistently ensured high code quality, maintaining solid backend coverage with unit tests.
PHP Laravel HTML Javascript MySQL RestFul APIs PHPUnit Integrations Git
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12/2016 - 12/2017

Web Developer Middle

Grupo Ser Educacional

Web developer maintaining PHP and OutSystems apps at Grupo Ser Educacional, also involved in migrating the PHP system to the OutSystems platform.

  • Worked as a web developer, focusing on new feature development and maintenance across all applications of Grupo Ser Educacional. At that time, most of the group's systems were built with OutSystems, but one application was still in PHP. I was responsible for maintaining both the PHP and OutSystems applications, and also contributed to the initial stages of migrating the PHP application to the OutSystems platform.
OutSystems PHP Zend Framework 1.x MySQL MsSQL HTML CSS Javascript Git
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05/2015 - 11/2016

Software Engineer

Planedia

Focused on backend, migrated Laravel 4.x to 5.x, created RESTful API, integrated AWS S3 and Elasticsearch, using MySQL and MongoDB for performance.

  • Primarily focused on backend development, I maintained existing code and contributed to the migration from Laravel 4.x to 5.x by decoupling the backend from the frontend and creating a RESTful API. I also integrated the system with AWS S3 and Elasticsearch. To enhance performance, the application leveraged both MySQL and MongoDB databases.
PHP Laravel 4.X | 5.X MySQL MongoDB ElasticSearch AWS(S3) Git
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08/2014 - 03/2015

Software Engineer

BankSystems Software Builder

Led three PHP projects from scratch to delivery, ensuring quality and guiding a senior team new to the stack in a software factory environment.

  • As a Software Engineer and Tech Lead, I had the opportunity to lead three projects from inception to deployment for the end client. The main challenge was to ensure high quality in the software factory’s first projects using the PHP stack, while supporting a senior team that, despite their experience, was working with this technology stack for the first time.
PHP CakePHP PostgreSQL HTML CSS Javascript Git
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07/2013 - 08/2014

Web Developer Junior

Grupo Ser Educacional

Web developer at Grupo Ser Educacional, maintaining apps and creating features; first experience with OutSystems on one of the group's early projects.

  • Worked as a web developer, developing new features and maintaining all applications for Grupo Ser Educacional. During this period, I also had my first contact with the OutSystems platform, contributing to one of the group's first applications built with it.
OutSystems PHP Zend Framework 1.x MySQL MsSQL HTML CSS Javascript SVN
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03/2012 - 06/2023

Web Developer

Civis Gestão Inteligente

Full stack developer responsible for maintaining client systems and developing new features tailored to their specific needs.

  • Working as a full stack developer at the time, my main responsibilities included maintaining client systems and developing new features based on their needs.
PHP FacilMVC CakePHP MySQL HTML CSS Javascript SVN
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10/2010 - 03/2012

Internship Web Developer

Receita Federal do Brasil

Developed inventory and document handling systems using PHP, HTML, MySQL, and JS, while also providing technical support.

  • First systems developed, with primary responsibility in technical support, while also implementing systems using PHP, HTML, MySQL, CSS, and JavaScript. Two systems were created: one for inventory management and another for handling document submissions for customer service.
PHP HTML CSS JavaScript MySQL
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