Samson Oyetola

Senior Full-Stack Engineer | AI/ML Specialist
Montreal, CA.

About

Highly accomplished Senior Software Engineer with over 15 years of expertise in designing, building, and scaling high-impact web and AI-powered applications. Specializing in modern JavaScript/TypeScript, Node.js, React, Java, and Python, I leverage cutting-edge AI frameworks and LLMs to deliver significant business results, as demonstrated by launching scalable APIs that powered $372M GMV and developing AI-driven products that boosted revenue by $25M annually. Proven track record in accelerating delivery, optimizing costs, and creating intelligent, full-stack solutions that bridge complex technology with strategic business objectives.

Work

Stay22
|

Senior Full-Stack Engineer

N/A, Quebec, Canada

Summary

Led full-stack development and architectural enhancements for high-impact web and AI-powered applications, driving significant revenue growth and operational efficiencies.

Highlights

Engineered and deployed robust APIs and microservices, processing over $372M in Gross Merchandise Value (GMV) and 1.3M+ transactions, contributing to a 187% year-over-year growth.

Spearheaded the architectural design of high-performance RESTful APIs, reducing average response times by 200ms (20%) and ensuring seamless scalability for millions of requests.

Developed and launched an innovative AI-powered recommendation and automation product utilizing RAG pipelines, Google Vertex AI, OpenAI GPT, LangChain, and Langfuse, generating an estimated $25M annual revenue increase and boosting partner conversion rates by 12%.

Orchestrated the development and successful deployment of over 3 high-impact features, significantly increasing user adoption by 40% and enhancing customer satisfaction by 10%.

Led the critical transition of infrastructure to Kubernetes and Docker, resulting in a 60% reduction in deployment times, optimizing cloud costs by 15%, and achieving 99.9% uptime for mission-critical services.

MTN Nigeria
|

Senior Full-Stack Engineer

N/A, Nigeria, Nigeria

Summary

Drove modernization efforts and enhanced system performance for large-scale telecommunications platforms, significantly improving user experience and operational efficiency.

Highlights

Successfully transitioned monolithic legacy systems to modern event-driven microservices architecture (Spring Boot, Node.js, Kafka), reducing system downtime by 35%.

Developed and implemented robust billing and messaging systems capable of handling over 5 million daily requests for a user base of millions.

Boosted customer retention by 17% through the implementation of faster feature delivery cycles and optimized CI/CD pipelines.

Orchestrated multi-region deployments across 4 countries, significantly reducing data latency by 30% for improved user experience.

Vodworks
|

Lead Full-Stack Engineer

London, England, United Kingdom of Great Britain and Northern Ireland

Summary

Led the re-platforming of a major gaming platform, achieving substantial improvements in API performance, user engagement, and profitability.

Highlights

Revamped the Nutaku gaming platform for Mindgeek, achieving a 45% reduction in API latency and boosting user engagement by 20%.

Optimized over 280 legacy APIs and developed 100+ new APIs, catering to millions of global users.

Increased platform profitability by 65% through strategic code and infrastructure optimizations.

Developed comprehensive analytics dashboards, streamlining data reporting processes and cutting reporting time by 50%.

Xamtax Technology
|

Lead Full-Stack Engineer

Lagos, Nigeria, Nigeria

Summary

Directed a 6-member software development team, overseeing the delivery of enterprise applications and pioneering an in-house PHP framework.

Highlights

Directed a 6-member engineering team, successfully delivering over 15 enterprise applications on schedule.

Architected and developed the Ehex PHP Framework, which powered over 1,000 websites and 63 plugins.

Mentored junior engineers, reducing onboarding time by 25% and significantly improving overall code quality through best practices.

Decreased production bugs by 40% through the implementation of Test-Driven Development (TDD) and robust coding best practices.

Yinosoft Technology
|

Full-Stack Developer

N/A, Nigeria, Nigeria

Summary

Developed and supported a diverse portfolio of web and mobile applications, including a health platform and donation systems, for various clients.

Highlights

Developed and launched over 100 websites and 10+ mobile applications annually, while supporting 40+ academic projects through to completion.

Developed the iHealth Doctor mobile application, attracting over 10,000 active monthly users and facilitating 1,000+ monthly bookings.

Empowered non-profit organizations by developing and maintaining a comprehensive donation platform, payment processor, and booking systems, boosting fundraising efforts by 60%.

Education

Imo State University
N/A, Nigeria, Nigeria

MSc

Computer Science

Oduduwa University
N/A, Nigeria, Nigeria

BSc

Computer Science

Languages

English
French
Yoruba

Certificates

AWS Certified Solutions Architect – Associate

Issued By

AWS

AWS Certified Developer – Associate

Issued By

AWS

Android Developer

Issued By

NIIT

Java Developer

Issued By

NIIT

Website Developer

Issued By

NIIT

Skills

AI & Machine Learning

RAG, LangChain, Langfuse, OpenAI, Google Vertex AI, Prompt Engineering, LLM Integration, AI Product Development.

Languages & Frameworks

JavaScript (ES6+), TypeScript, Node.js, React.js, Python, PHP, Java, C#, Kotlin, Go, HTML5, CSS3, Spring Boot, Laravel, Deno, Hono.js, Tailwind CSS, SCSS, Symfony, AngularJS, React Native, WordPress.

Databases

PostgreSQL, MySQL, MongoDB, NoSQL, SQL Server.

Cloud & DevOps

AWS, GCP, Azure, Kubernetes, Docker, Heroku, Cloudflare, CI/CD, Git, RabbitMQ, Kafka.

Architectures & Practices

Microservices, Event-driven systems, Agile/Scrum, TDD, Domain-Driven Design (DDD).

Tools

Jira, Apigee.

Samson Oyetola