Open to opportunities

Leslie Osei

@leslieosei

Message

Detail-oriented software engineer specializing in full-stack development, cloud, and ML-driven solutions.

United States

Message

What I'm looking for

I seek a collaborative, product-focused engineering role where I can build scalable full-stack and cloud-native systems, integrate ML, mentor teams, and deliver measurable performance and reliability improvements.

I am a detail-oriented, results-driven software engineer with deep experience designing, developing, and deploying scalable web and software applications. I specialize in full-stack development, cloud infrastructure, and machine learning integration.

At Quotient and CGI I built and modernized distributed systems, implemented microservices with Docker and AWS, and improved performance and deployment velocity through CI/CD automation. I have reduced server costs, cut page load times, and dramatically lowered manual deploys with practical engineering changes.

I collaborate closely with cross-functional teams, mentor engineers, conduct code reviews, and translate product requirements into user-centric interfaces and robust backend systems. I’ve integrated ML models into production, hardened security with OAuth2/JWT and automated vulnerability management and testing.

I hold an M.S. and B.S. in Information Systems and carry certifications in CompTIA A+ and Security+. I seek to apply my combination of cloud, ML, and full-stack expertise to deliver measurable business value and scalable products.

Experience

Work history, roles, and key accomplishments

Current

Software Engineer

Current

Quotient

Jul 2020 - Present (5 years 2 months)

Developed DNS management and scalable microservices, reducing server costs by over 50% and page load times by 35% while implementing CI/CD to cut manual deploys by 90%.

JavaScript Python Scala Docker AWS MySQL Vue.Js D3.Js Webpack CI CD

Software Engineer

Cgi

Jul 2016 - Jul 2020 (4 years)

Built full-stack enterprise applications (.NET/Node/React) and integrated ML models, improved test coverage to over 90%, and led efforts that reduced delivery times and deployment issues.

C++.NET Node React PostgreSQL TensorFlow PyTorch DevOps Jest Azure

Education

Degrees, certifications, and relevant coursework

University of Maryland, Baltimore County

Master of Science, Information Systems

Completed a Master of Science in Information Systems with coursework in machine learning, distributed systems, databases, and software engineering.

University of Maryland, Baltimore County

Bachelor of Science, Information Systems

Completed a Bachelor of Science in Information Systems with coursework in database administration, cloud computing, cybersecurity, and machine learning.