Lucas Santos

Lucas Santos

About

Detail

Senior Full Stack Engineer
Guarujá, São Paulo, Brazil
Contact Lucas regarding: 
work
Full-time jobs
Starting at USD25/hour
Flexible work
person_search
Finding candidates
connect_without_contact
Finding mentors
Finding co-founders
groups
Networking

Timeline

work
Job
school
Education

Résumé

Jobs verified_user 0% verified
  • M
    Senior Full Stack Engineer
    Mercado Livre Brasil
    Jun 2023 - Current (2 years 11 months)
    Acted as a senior contributor on a multinational retail platform used across 5+ countries by hundreds of internal and external users. Delivered 6+ full stack features by building frontend components with React and Angular and integrating backend APIs. Developed and extended 10+ backend endpoints using ASP.NET Core and Python/Django, improving feature delivery speed by ~20%. Optimized database queries and API response times, reducing average latency by 15-25% across critical workflows. Refactored legacy components, cutting technical debt and reducing production issues by ~30%. Collaborated with 10+ product, design, and QA stakeholders to ensure timely releases and stable production deployments. Tech Stack: React, Next.js, REST APIs, Microser
  • Leroy Merlin
    Senior Full Stack Engineer
    Leroy Merlin
    May 2022 - Jun 2023 (1 year 2 months)
    Contributed to Open Banking / Open Finance initiatives for 1+ major financial institution. Developed and integrated 5+ backend APIs within enterprise-grade platforms. Built 6+ Angular components supporting complex financial workflows. Resolved 15+ production issues, reducing incident resolution time by ~20%. Assisted senior engineers with system documentation and deployment preparation. Tech Stack: React, Angular, ASP.NET Core, Python, Django, REST APIs, MySQL, Microservices
  • S
    Full Stack Engineer
    SulAmerica Seguros
    Jun 2021 - Apr 2022 (11 months)
    Delivered full stack enterprise systems supporting HR, taxation, and internal operations. Built backend services and APIs using C# / ASP.NET Core and Python for internal platforms. Developed rich frontend applications using Angular, React, and Vue.js. Designed integrations with Oracle, MongoDB, and Redis to support complex data workflows. Worked closely with DevOps teams to ensure reliable CI/CD pipelines and production releases. Tech Stack: C#, ASP.NET Core, Python, Angular, React, Vue, Oracle, MongoDB, Redis
  • Verity
    Software Engineer
    Verity
    Dec 2019 - Dec 2020 (1 year 1 month)
    Built and maintained customer-facing and internal web applications. Developed frontend interfaces using Angular and React. Integrated backend APIs built with .NET Core and Python services. Supported cloud deployments and integrations across AWS and GCP. Tech Stack: REST APIs, Angular, Enterprise Platforms, Oracle, MongoDB
  • Santos Brasil
    Junior Full Stack Engineer
    Santos Brasil
    Apr 2018 - Nov 2019 (1 year 8 months)
    Supported development and maintenance of 10+ internal applications and APIs used in logistics and terminal operations. Implemented 15+ bug fixes and enhancements across legacy Java/JSP systems and Spring Boot services. Developed 8+ frontend components using Angular to support operational dashboards. Designed and optimized 20+ SQL queries and database objects in Oracle environments. Participated in weekly sprint planning and reviews, contributing to continuous delivery. Collaborated with operations teams to troubleshoot and resolve production issues. Tech Stack: Java, Spring Boot, JSP, Angular, Oracle, SQL
  • H
    Software Engineer Intern
    Hook Digital
    Jun 2017 - Mar 2018 (10 months)
    Supported development of 3+ internal healthcare systems related to hospital bed and resource allocation. Implemented 10+ Java routines and maintained existing system modules. Worked with Oracle databases via JDBC, supporting daily reporting and analytics. Assisted 20+ internal users with system usage and troubleshooting. Documented 5+ technical processes to improve knowledge sharing. Collaborated with senior developers during testing and deployment activities. Tech Stack: Java, JDBC, Oracle, JSP
Education verified_user 0% verified
  • University of Sao Paulo
    Bachelor's Degree
    University of Sao Paulo
    Apr 2013 - May 2017 (4 years 2 months)
    Computer Science