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Lucas BustoLB

Lucas Busto

Senior Software Engineer | 10+ years | Remote

€500/day
Berlin, DE
8-15 years

Average response time: 1 hour

About Lucas

As a Senior Full-Stack Engineer with over 10 years of experience, I specialize in architecting and delivering high-performance, scalable software that drives tangible business results.

My expertise is not just in writing code, but in solving complex problems. While I have a deep background in .NET, I am also proficient in building efficient microservices with Go and Python on both AWS and Azure. I apply modern architectural patterns like DDD, CQRS, Clean Architecture and Event-Driven Design to create robust and maintainable systems.

My greatest value comes from delivering measurable impact. I led the development of a project for a pharmaceutical client that resulted in potential annual savings of up to $5 million. Currently, at Brazil's largest brokerage, I am responsible for the end-to-end development of the critical Chargeback system, using .NET 8, Go, and AWS services like EKS and DynamoDB.

Based in Brazil and fluent in English, I work remotely with international teams to deliver high-value projects. Let's connect to discuss how I can bring similar results to your company.

  • English

    Native or bilingual

  • Spanish

    Conversational

  • Portuguese

    Fluent

Remote only
Primarily works remotely

Experience

  • XP Inc.
    Senior Full-Stack Developer
    BANKING AND INSURANCE
    February 2023 - Today (3 years and 4 months)
    Brazil
    I currently work for XP Investimentos, Brazil's largest independent brokerage firm. I am responsible for fully developing the Chargeback system, which speeds up the contesting and canceling of online purchases made with credit cards, debit cards, or PIX. I implemented solutions that ensure efficiency and security in the process, making it easier for customers to request transaction refunds from banks.
    As a result, we increased customer confidence in online transactions, ensuring their rights and protecting them against fraud. I contributed to strengthening XP Investimentos' reputation in the financial market, improving customer security and satisfaction.
    C# Python GO Microservices React.js
  • JBQ.Global
    Senior Full-Stack Developer
    PHARMACEUTICALS INDUSTRY
    February 2021 - January 2023 (1 year and 11 months)
    I worked with a pharmaceutical client, creating a discount project to be used in more than 1,000 pharmacies in more than 350 cities. After implementing this discount project, we successfully mapped the discounts utilized by each customer at every pharmacy. With that, we can assist the entire company in making informed decisions about discounts for partner companies and customers, potentially saving between $1 million and $5 million annually.
    C# React.js API Python PostgreSQL
  • Kroton
    Senior Full Stack .NET Developer
    EDUCATION AND E-LEARNING
    March 2020 - January 2021 (10 months)
    São Paulo, Brazil
    I worked on a scheduling system with several features, including consultant registration, manager registration, and registration of several schools, among other features. This scheduling system was very slow, and it was very difficult to make small improvements, as it took a lot of time. I was the engineer responsible for updating this system to new technologies, I also created all the reports that didn't exist and helped the directors to make better choices using the new reports I developed. I was responsible for creating the CI/CD for 3 applications that my team was responsible for, using Azure DevOps CI/CD, Docker, and Kubernetes.
    Angular C# SQL Server Docker AngularJS

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Education

  • Exam 480: Programming in HTML5
    Microsoft
    2017
    https://www.credly.com/badges/73c29576-dfa1-42e2-b8e0-8741d9f82573
  • Bachelor's degree
    Universidade UNG
    2016
    Bachelor's degree

Skill set

Categories