Diego Casillas
Engineering Team Lead, Self Delivery at Wolt
Helsinki, Finland
Summary
👤
Senior🎓
Top SchoolDiego Casillas is a product-oriented, data-driven engineering leader with nine years of full-stack experience currently heading Self Delivery at Wolt in Helsinki. He has progressed from hands-on roles building services in Kotlin, Python, Node.js and React to leading remote-first, cross-functional teams of 15+ people focused on merchant acquisition and operational delivery. Diego combines pragmatic architecture and CI/CD improvements with a strong appreciation for developer experience, mentoring, and measurable product outcomes. Comfortable across backend systems (Kafka, MongoDB, Postgres, Elasticsearch) and cloud-native deployments, he treats code like Lego—composable, testable, and iteratively improvable. His track record includes accelerating merchant onboarding at scale and steadily moving from implementation to technical leadership while keeping shipping velocity high.
9 years of coding experience
7 years of employment as a software developer
Bachelor of Engineering Information Technology, Bachelor of Engineering Information Technology at Oulu University of Applied SciencesAssociate's degree Web Application Development, Associate's degree Web Application Development at IES Alonso de Madrigal
Spanish, English
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (36)
mvc-architecture10
async9
javascript9
open-source9
fetch9
rest9
rad9
graphql8
react8
vue8
redux8
svelte7
asynchronous7
linux7
typescript7
Programming languages (8)
Github contributions (5)
diegocasillas/dawn-framework
Mar 2018 - Oct 2018
Light PHP MVC framework for building web apps and APIs
Contributions:1 release, 207 commits, 6 PRs in 7 months
lightphp-mvc-frameworkrestfulphprad
diegocasillas/join
Mar 2019 - May 2019
Contributions:139 commits, 1 branch in 1 month
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