Open to opportunities

Lucas da Silva

@luksgabe

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Senior software engineer specialized in scalable .NET, Node.js, and modern frontend architectures.

Brazil

Message

What I'm looking for

I am seeking a technical leadership role where I can design scalable systems, mentor teams, modernize legacy platforms, and deliver measurable performance improvements in an agile environment.

I am a Senior Software Engineer with a Bachelor's degree in Systems Analysis and Development and over nine years of experience building backend and frontend solutions across .NET, Node.js, and React ecosystems. I focus on designing scalable, resilient applications and modernizing legacy systems to deliver measurable performance improvements.

Throughout my career I have led development teams, driven architecture decisions, and implemented microservices, APIs, and micro frontend patterns that reduced response times and increased operational efficiency. My work has produced releases that improved efficiency by up to 30% and boosted system reliability and user satisfaction.

I prioritize clean code, Domain-Driven Design, and pragmatic engineering practices (CQRS, SOLID). I enjoy mentoring teams, conducting thorough code reviews, and collaborating with stakeholders to translate requirements into robust, maintainable software solutions.

Experience

Work history, roles, and key accomplishments

Current

Software Architect

Current

CI&T

Apr 2025 - Present (10 months)

Leading a development team to design scalable, resilient .NET applications and evolve React-based micro frontend architectures, improving application performance and streamlining development processes.

C++.NET React Architecture Azure DevOps

Senior Software Engineer

IBrowser

Nov 2023 - Mar 2025 (1 year 4 months)

Enhanced customer systems for Brazilian public companies by implementing MVC .NET backend and JavaScript/jQuery frontends, reducing system response time by 20% and increasing user satisfaction.

ASP.NET MVC C++JavaScript jQuery Performance Optimization T SQL Agile

Senior Software Engineer

Redspark

Jun 2022 - Oct 2023 (1 year 4 months)

Developed APIs with .NET 6/7 and Node.js and modern React/TypeScript frontends, optimized databases (Oracle, PostgreSQL, ElasticSearch), and delivered three major releases improving operational efficiency by 30%.

C++Node React TypeScript PostgreSQL Elasticsearch API Design

Senior Software Engineer

Raro Labs

Aug 2021 - May 2022 (9 months)

Built microservices for a financial account platform using .NET 5 and Node.js (Express/NestJS), integrated SQL Server, and improved system reliability by 40% while reducing API response time by 25%.

Node NestJS SQL Server Microservices API Design Performance Tuning

Software Engineer

CWI Software

Jun 2020 - Aug 2021 (1 year 2 months)

Upgraded frontend with AngularJS, optimized ASP.NET backend and T-SQL queries, increasing processing speed by 15% and user adoption by 10%; also led a greenfield electronic point project using .NET 5, Node.js, React and MSSQL.

AngularJS ASP.NET Node React MSSQL T SQL Performance Improvement

Software Engineer

Meta IT

May 2019 - Jun 2020 (1 year 1 month)

Developed a billet management system with ASP.NET Core 2.2 MVC and EF Core using DDD, reducing payment processing errors by 35% and improving client satisfaction; contributed to a Node.js/React real estate platform.

ASP.NET Core DDD C++Node React MySQL

Software Developer

NTConsult

Apr 2018 - Dec 2018 (8 months)

Improved a purchasing management system for public sector clients by implementing .NET features within Scrum, reducing issue resolution time by 50%.

.NET C++Agile Scrum Backend Development Maintenance Public Sector T SQL

Software Developer

Prismatec

Aug 2017 - Dec 2017 (4 months)

Built process management modules with ASP.NET MVC and managed PostgreSQL databases, improving process efficiency by 20% through close stakeholder collaboration.

ASP.NET MVC C++PostgreSQL Process Automation Requirements Gathering Backend Development

Software Developer

TIMMIT Sistemas

Dec 2016 - Jun 2017 (6 months)

Supported customer systems with WebForms and WinForms and optimized Oracle procedures, reducing query times by 15% through database maintenance and performance tuning.

WinForms Oracle Pl SQL Database Optimization Legacy Systems C++

Education

Degrees, certifications, and relevant coursework

FTEC Faculdades

Bachelor's Degree, Systems Analysis and Development

Bachelor's Degree in Systems Analysis and Development completed in 2017, covering software development principles, databases, and modern application architectures.