Samuel McCallum
@samuelmccallum
Senior Software Engineer with over 20 years of experience.
What I'm looking for
With over 20 years of experience as a Senior Software Engineer, I specialize in web application architecture and SQL database design. My recent role at Five9, Inc involved building APIs using Node.js and Express, as well as front-end development with React and Vue. I have a proven track record of collaborating with Product Managers to implement and deliver innovative products and features that meet the needs of our key customers.
Prior to my time at Five9, I served as a Senior Full-Stack Engineer at Codero Hosting, where I designed databases, APIs, and user interfaces for the customer-facing server control panel. I led the development of an in-house inventory system and created auto-provisioning pipelines to streamline customer orders. My freelance work has allowed me to partner with various clients, developing original products and scaling existing ones, showcasing my adaptability and commitment to delivering high-quality solutions.
Experience
Work history, roles, and key accomplishments
Senior Front-End Engineer
Five9, Inc
Apr 2013 - Present (12 years 2 months)
Worked closely with Product Managers to plan, implement, and deliver new products and features. Instrumental in the development of Five9’s flagship Agent, Supervisor, and Administrator products.
Senior Full-Stack Engineer
Codero Hosting
Apr 2011 - Apr 2013 (2 years)
Designed databases, APIs, and UIs for the customer-facing serverportal.com control panel. Led the development of the in-house inventory system and developed auto-provisioning pipelines for customer orders.
Software Engineer
ProQuest I&L
Oct 2003 - May 2005 (1 year 7 months)
Led the development of the Learning A-Z platform, bringing readinga-z.com and raz-kids.com from concept to launch. The platform was purchased by ProQuest I&L due to its success during tenure.
Education
Degrees, certifications, and relevant coursework
University of Maryland
Certificate, Cyber Security
Completed a Certificate in Cyber Security from the University of Maryland in 2016. This included annual OWASP Top 10 training.
Tech stack
Software and tools used professionally
Availability
Location
Authorized to work in
Job categories
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