Esteban Sierra
Digital Marketing Strategist
Medellín, Antioquia, Colombia
Summary
🤩
Rockstar🎓
Top SchoolEsteban Sierra is a digital marketing strategist based in Medellín with 11 years of experience building growth engines across startups, agencies, and product ventures. He has led end-to-end marketing programs—SEO, SEM, social paid, email, CRM and offline channels—managing multi-channel budgets and driving measurable revenue from early-stage launches to scaling e-commerce like Manchas. A practical operator who co-founded a food brand and ran a travel business, he blends hands-on growth experiments with strategic leadership and a track record of rapid customer acquisition (e.g., $5k sales from a $280 Facebook Ads test). Esteban also brings technical fluency from full-stack contributions to the popular Concourse open-source project, improving its UI and test coverage, which helps him collaborate effectively with engineering teams. He’s comfortable inventing new business models—pioneering “startup as a service” in LATAM—and translating product insights into scalable marketing systems.
11 years of coding experience
5 years of employment as a software developer
ReforgeMarketing Professional, Marketing, Marketing Professional, Marketing at Universidad EAFIT
English
Github Skills (16)
concourse10
uid10
front-end-development10
ui-design10
elm10
testing10
cicd9
continuous-integration9
cirrus-ci9
continuous-delivery9
circleci9
container7
containerd6
go5
javascript5
Programming languages (8)
Github contributions (5)
concourse/concourse
Feb 2021 - Mar 2022
Concourse is a container-based automation system written in Go.
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:21 reviews, 123 commits, 79 PRs in 1 year 1 month
Contributions summary:Esteban primarily focused on front-end development, refactoring the Concourse UI by replacing the "hamburger" menu with a sidebar icon. They implemented the icon, added tooltips, and added new tests. Furthermore, they updated existing tests to accommodate the refactor. They also worked on improving the dashboard grid layout.
golangcontainersdoergocdelm
vmware-tanzu/package-for-source-controller
Feb 2022 - Jun 2022
This repo will house the carvel tooling specific configuration and templating for a deployment of fluxcd-source-controller (https://github.com/fluxcd/source-controller) that will be leveraged by TCE
Contributions:3 releases, 1 review, 36 commits in 3 months
carvelhousecontrollerdeploymenttemplating
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