Open to opportunities

Lester Diop

@lesterdiop

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Senior Software and AI Engineer focused on scalable developer tools.

United States

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What I'm looking for

I seek roles building scalable developer tools and cloud-native systems, emphasizing automation, CI/CD, and measurable improvements to engineer productivity in collaborative, growth-oriented teams.

I am a Senior Software and AI Engineer with over 13 years of experience building high-impact backend, frontend, and mobile systems, and creating intelligent automation to optimize the SDLC.

I've designed cloud-native services and developer tools at scale, improving engineer productivity and reducing defects through intelligent testing and automation.

My technical expertise spans Python, C#, Java, Node.js, PHP, modern frontend frameworks (React, Next.js, Angular), and mobile development (React Native, native Android), as well as cloud and CI/CD ecosystems.

I am dedicated to streamlining developer experience, mentoring teams, and delivering performant, reliable distributed systems for large engineering organizations.

Experience

Work history, roles, and key accomplishments

Senior Software Engineer

Microsoft

Oct 2024 - Mar 2025 (5 months)

Designed and implemented developer tools and intelligent automation in C#, improving internal engineer productivity by 30% and reducing post-deployment defects by 25% through automated testing and CI/CD improvements.

C Azure DevOps Docker SignalR xUnit NUnit RESTful APIs CI CD Cloud Native

Senior Software Engineer

Koubrah

Mar 2018 - Aug 2024 (6 years 5 months)

Designed scalable cloud-native backend infrastructures and developer-centric enterprise applications, optimizing data retrieval with MSSQL and MongoDB and improving developer experience via Azure DevOps and Docker.

System Design MSSQL MongoDB Azure DevOps Docker OOP CI CD Cloud Native Performance Optimization

Senior Full Stack Engineer

Kickfin

Jun 2015 - Feb 2018 (2 years 8 months)

Architected and maintained distributed systems supporting high-volume financial transactions, implemented secure APIs and high-availability patterns, and reduced server response time by 20% through performance optimizations.

React C Distributed Systems API Design Performance Optimization Cloud Native High Availability Security Backend Development

Full Stack Developer

Hawksearch

Aug 2012 - May 2015 (2 years 9 months)

Built and optimized search-driven backend systems using Java and ASP.NET, implemented query optimizations to improve response times and introduced Jenkins CI/CD pipelines to accelerate deployments.

Java ASP.NET Jenkins CI CD OOP Backend Development

Education

Degrees, certifications, and relevant coursework

Texas State University

Bachelor's degree, Computer Science

2007 - 2011

Completed a Bachelor's degree in Computer Science with coursework in software engineering, algorithms, and systems design from January 2007 to January 2011.