SFSimon Frost
@simonfrost
Fullstack engineer specializing in TypeScript, React, and Tailwind.
MexicoWhat I'm looking for
I'm a fullstack engineer with over 10 years of experience, specializing in TypeScript, React, and Tailwind. My journey has taken me from helping startups with ambiguous specifications to collaborating with large corporations where clear communication is essential. A personal highlight was taking the Mexican neobank Klar from inception to launch, developing both web and mobile applications that significantly improved user experience and engagement.
In my recent role as a Product Engineer at Mellow Fit, I contributed to a community-focused exercise mobile app, leveraging React Native and Expo to create a seamless cross-platform experience. My previous experiences include working as a UX Engineer at Rough.app, where I enhanced product planning tools through user testing and design adjustments, and as a Web Lead Engineer at Klar, where I played a pivotal role in building the technical foundation for the web platform during critical fundraising rounds.
Experience
Work history, roles, and key accomplishments
Product Engineer
Mellow Fit
Apr 2025 - Present (2 months)
Developed a community-focused exercise mobile app for iOS and Android platforms. Utilized React Native, Expo, and Supabase to build cross-platform functionalities.
Web Lead Engineer
Klar
May 2019 - Nov 2022 (3 years 6 months)
As employee #2, I laid the technical foundations for the web platform and shipped key credit features on the mobile app. I worked directly with the CTO during Series A, B, and C fundraising rounds and helped build the team by interviewing, pair programming, reviewing code, and onboarding new team members.
Senior Frontend Engineer
Feather
Nov 2018 - Jan 2019 (2 months)
Developed features for an insurance platform for expats, including account creation and management, and a rewards section. Utilized React, Redux, and Typescript for implementation.
Senior Frontend Engineer
SAP
Apr 2018 - Oct 2018 (6 months)
Created a universal identification system prototype for an enterprise software company. Features included account management and linking functionalities.
Senior Frontend Engineer
Planet
Feb 2017 - Nov 2017 (9 months)
Built the admin tool that managed daily imagery for an aerospace microsatellite company. Features included image access tooling, report viewing and generation, and two-factor authentication.
Frontend Engineer
N26
Feb 2016 - Nov 2016 (9 months)
Built the main banking web application within a cross-functional team. Features included overdraft, premium and express card ordering, and migration to the newly licensed bank.
Full Stack Engineer
Verizon Connect
Feb 2012 - Feb 2014 (2 years)
Built the interface and backend for a traveling salesman problem solver. Features included a route templating system, routing algorithm optimizations, and manual route modification tooling.
Education
Degrees, certifications, and relevant coursework
UCUniversity of Canterbury
Bachelor of Science, Computer Science
Grade: Scholarship
Activities and societies: Human Interface and Technology Laboratory
Studied Computer Science at the University of Canterbury, New Zealand. Awarded a scholarship for academic achievement.
Availability
Location
MexicoAuthorized to work in
Job categories
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