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I am a Senior Software Engineer with over 8 years of experience designing and delivering complex, large-scale software systems across fintech, retail, and SaaS industries. I specialize in building distributed architectures, integrating AI-driven features, and leading end-to-end development from design to deployment. I am known for improving system performance, automating workflows, and driving product innovation through data and AI. I am adept at mentoring engineers, collaborating across teams, and translating business goals into technical outcomes that scale globally.…I am a Senior Software Engineer with over 8 years of experience designing and delivering complex, large-scale software systems across fintech, retail, and SaaS industries. I specialize in building distributed architectures, integrating AI-driven features, and leading end-to-end development from design to deployment. I am known for improving system performance, automating workflows, and driving product innovation through data and AI. I am adept at mentoring engineers, collaborating across teams, and translating business goals into technical outcomes that scale globally.

Sean Gardner

Full Stack Developer, Back-End Developer, Front-End Developer, +3

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I am a Senior Software Engineer with over 8 years of experience designing and delivering complex, large-scale software systems across fintech, retail, and SaaS industries. I specialize in building distributed architectures, integrating AI-driven features, and leading end-to-end development from design to deployment. I am known for improving system performance, automating workflows, and driving product innovation through data and AI. I am adept at mentoring engineers, collaborating across teams, and translating business goals into technical outcomes that scale globally.…I am a Senior Software Engineer with over 8 years of experience designing and delivering complex, large-scale software systems across fintech, retail, and SaaS industries. I specialize in building distributed architectures, integrating AI-driven features, and leading end-to-end development from design to deployment. I am known for improving system performance, automating workflows, and driving product innovation through data and AI. I am adept at mentoring engineers, collaborating across teams, and translating business goals into technical outcomes that scale globally.

Available to hire

I am a Senior Software Engineer with over 8 years of experience designing and delivering complex, large-scale software systems across fintech, retail, and SaaS industries. I specialize in building distributed architectures, integrating AI-driven features, and leading end-to-end development from design to deployment.

I am known for improving system performance, automating workflows, and driving product innovation through data and AI. I am adept at mentoring engineers, collaborating across teams, and translating business goals into technical outcomes that scale globally.

Skills

Experience Level

Expert

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Intermediate

Language

English

Fluent

Work Experience

Senior Software Engineer at S&P Global Inc.

March 1, 2022 - November 6, 2025

Led development of a financial data intelligence platform handling millions of transactions daily; built microservices and APIs with Node.js, Python (FastAPI), and Java (Spring Boot) on AWS, improving scalability and uptime by 40%; designed AI-powered data enrichment using OpenAI and LangChain; built ML pipeline with TensorFlow and scikit-learn; created internal tools to summarize large datasets, generate SQL queries from natural language, and support analyst workflows; enhanced front-end dashboards with React/Next.js; introduced Kafka-based streaming for near real-time updates; automated CI/CD with Jenkins, Docker, and Terraform, reducing deployment friction and release times by 35%; mentored engineers.

Software Engineer at The Home Depot, Inc.

March 1, 2022 - March 1, 2022

Built customer-facing web applications using React, TypeScript, C#, Node.js and .NET; developed internal microservices for inventory and logistics using Java (Spring Boot) and PostgreSQL; automated CI/CD workflows with Python (Django) and Azure Functions; enhanced front-end performance to reduce load times by 35%; implemented asynchronous messaging with RabbitMQ and Redis; modernized cloud infrastructure with Azure, Jenkins, and Docker.

Software Engineer at Asurint LLC.

January 1, 2019 - January 1, 2019

Developed and maintained background screening applications using Angular, C# (.NET), and SQL Server; created RESTful APIs and optimized queries, improving response times; implemented automated unit and integration testing; built internal admin tools with Ruby on Rails; worked in a collaborative environment using AWS, Jenkins, and modern CI/CD practices to support rapid feature delivery.