Open to opportunities

Igor Marinho

@igormarinho

Full-Stack Developer specializing in .NET, React, and dashboards—turning data into reliable, measurable web applications.

Brazil

Message

What I'm looking for

I’m looking for a Full-Stack role where I can build .NET and React applications, integrate APIs, and turn time-series data into clear dashboards—partnering closely with teams to modernize legacy systems and improve performance.

I’m a Full-Stack Developer with 5+ years of experience designing and maintaining web applications using .NET, C#, React, and Node.js. I’ve delivered measurable impact by optimizing databases and building custom dashboards, including a 40% reduction in report execution time and a 25% reduction in maintenance scheduling time.

I enjoy integrating third-party platforms like Moodle, LimeSurvey, Grafana, InfluxDB, and modernizing legacy systems while bridging old and new codebases. In my current role, I’m building .NET backend services and React dashboards for real-time PLC monitoring, embedding Grafana for dynamic visualization and partnering with teams to translate business requirements into robust technical solutions.

Experience

Work history, roles, and key accomplishments

Current

Mid-Level Analyst

Current

Tsa Engenharia

Jan 2023 - Present (3 years 6 months)

Developed .NET (C#) backend services integrating industrial PLC data with monitoring dashboards and built a React-based asset management application. Optimized data transformation and queries to improve dashboard rendering and reduce maintenance scheduling time by 25%.

C#.NET React Grafana InfluxDB Microsoft SQL Server REST APIs data transformation SQL Query Optimization Predictive Maintenance

Mid-Level Analyst

ISBET

Nov 2021 - Oct 2022 (11 months)

Extended a legacy VB.NET system with new features and bug fixes to improve reliability by 30%. Optimized SQL Server queries to cut report execution time by 40% and integrated Moodle, LimeSurvey, and SMTP for automated student onboarding and survey distribution.

VB.NET C#.NET Framework Microsoft SQL Server SQL Query Optimization Stored Procedures Indexing LimeSurvey API Integration SMTP Legacy System Modernization Debugging Data Integrity

C# Developer

Gracia Software House

Jan 2021 - Oct 2021 (9 months)

Built and maintained C#/.NET REST APIs for delivery application data exchange with the iFood platform. Developed a Flutter mobile app for restaurant managers and collaborated on API design and database management with senior developers.