# Brett Smentek > Software Engineer at Luminary — We're Hiring! Location: New York, New York, United States Profile: https://flows.cv/brettsmentek I am a software engineer experienced in building highly-polished consumer software experiences and growing agile teams. I have 8 years of experience at startups and growth companies. ## Work Experience ### Software Engineer @ Luminary Jan 2022 – Present | New York, New York, United States Engineering @ Luminary ### Senior Software Engineer @ Coinbase Jan 2022 – Jan 2022 | New York, New York, United States Worked on the frontend for Coinbase Advanced Trade web. ### Senior Software Engineer @ Peloton Interactive Jan 2020 – Jan 2022 | New York, New York, United States I worked on Peloton’s order experience and led a cross-platform e-commerce growth team. ◦ Team Lead: Worked closely with the product manager and stakeholders to align engineering work with product requirements and timelines through documentation, scope adjustments, and milestones ◦ Mentor: Partnered with less experienced engineers, enabled them to lead projects, and helped them learn about product engineering and strategies like split-testing and agile development ◦ GraphQL Federation: Drove a large, cross-team initiative to adopt GraphQL Federation, creating a common data layer for our microservice infrastructure. ◦ Feature Lead: Built impactful, customer-facing features such as scheduling, order updates, and upsells ◦ Full-Stack: Worked in a full-stack capacity, using React, TypeScript, JavaScript, Kotlin, Python, and Node.js ◦ Team Development and Leadership: Introduced software development practices like pair programming, design documentation, continuous integration, and writing user stories to build out a high-performance team ### Senior Software Engineer @ Casper Jan 2018 – Jan 2020 | New York City I focused on the company’s frontend top-of-funnel and frontend infrastructure. ◦ Technical Leadership: Led a frontend infrastructure team to support casper.com, encompassing server-side rendering, shared libraries, and a common design system ◦ Automation: Integrated CMS with e-commerce site, giving nontechnical users the ability to make changes to the site without engineering involvement and allowing for a 10x in product velocity ◦ Testing: Introduced testing standards and end-to-end tests, reducing production issues by 75% ### Software Engineer @ Knewton Jan 2016 – Jan 2018 | New York City At Knewton I helped develop an AI/ML educational platform and launch an educational product to help teachers teach math and science courses. ◦ Startup Building: Led the development of a TypeScript-React-Redux-GraphQL frontend working with a lean team to scale a consumer application from 0 to 100,000 students ◦ Recommendation Engine: Created a a Python-based CMS to allow content editors to create educational courses powered by an AI-based recommendation engine ### Computational Design Engineer @ Arup Jan 2014 – Jan 2016 | New York City Arup is a consulting firm which provides design, engineering, and architecture services for the built environment. ◦ Client-Focused: Built applications and services across the stack to serve the needs of structural design engineers, architects, and commercial clients such as structural optimization algorithms and web applications for data visualization ◦ Multidisciplinary Environment: Constructed web applications and data visualizations to communicate the work of mechanical and environmental engineers to clients to aid in the planning of construction work ### Research with Prof. David Lee, Clemson @ Computational design in architecture research Jan 2013 – Jan 2014 | Clemson, South Carolina Conducted graduate-level research by designing and constructing an Arduino-controlled prototype façade composed of light-responsive panels. Inquired into the integration of engineering and architectural design philosophies and the process of developing products from concepts. ### Research with Dr. Joshua Summers, Clemson @ Lunar and sand traction research Jan 2012 – Jan 2014 | Clemson, South Carolina Improved longevity of traction systems developed for NASA lunar vehicles. Designed, built, and tested tire prototypes using engineering design methods including decision matrices, Pugh Concept Selection, and iterative testing. Coauthor of two American Society of Mechanical Engineers (ASME) papers. ### Product Engineer @ Westinghouse Nuclear Jan 2012 – Jan 2013 Mechanical engineering internship during the summers of 2013 and 2014 in a large-scale manufacturing environment. - Worked on the design and oversight of mechanical tests, analysis and documentation of test results, and component modeling in SolidWorks. - Verified the formability properties of reactor components from strain test data. ### Research with Dr. Jason Thatcher, Clemson @ “Big data” analysis and research using social media Jan 2012 – Jan 2012 | Clemson, South Carolina Developed an algorithmic trading strategy that repurposed software designed to monitor social media for marketing purposes to isolate trends relevant to the foreign exchange market and automatically execute currency trades. ## Education ### Bachelor of Science in Mechanical Engineering Clemson University ### Master of Architecture (M.Arch.) in Architecture University of California, Berkeley ## Contact & Social - LinkedIn: https://linkedin.com/in/brettsmentek - Portfolio: https://brett.sh --- Source: https://flows.cv/brettsmentek JSON Resume: https://flows.cv/brettsmentek/resume.json Last updated: 2026-03-31