Mobile app design and development
React Native and Expo apps that ship to both stores — and the Godot games that sit alongside them.
5+
Years of experience
About me
Problems? Consider them solved and coded
I build the parts of a system that have to keep working when nobody is watching.
Right now that means leading a health interoperability platform that lets Colombian providers meet a national mandate — a queue-based pipeline of NestJS microservices producing HL7 FHIR R4 records, designed to survive an upstream government API that is frequently neither fast nor available.
Before that: React Native and Next.js in production at Publicis, red teaming and DevSecOps at Aligo and Geta Club Play, and a decade of tutoring that is still the reason I can explain any of it. Outside work I write robotics libraries in Rust and ship small mobile apps through Grisú.
- 12Roles across 8 organisations
- 20+Languages & tools used
- 4Awards won
What I do
Services
Web design and development
Front ends in React, Next.js and Astro — fast, responsive, and built to be handed over.
Infrastructure design and DevOps
AWS, Docker, CI/CD and the observability that tells you what is actually happening in production.
IoT and robotics
MQTT, Raspberry Pi, lidar and Rust — from sensor firmware to the map it produces.
AI development solutions
Python services, agent-driven applications, and data pipelines that hold up under load.
Brand identity and design
Interface design in Figma, and design systems that survive being handed to a developer.
Tools of the trade
Tech Stack
Rust
My default for systems work — robotics drivers, SLAM, and anything that has to run on a Raspberry Pi without a C++ toolchain in the way.
Python
Backend services, AI work, automation and the web scraping I have leaned on since my security days.
React Native
Where most of my mobile work lives — e-commerce apps at Publicis, and the utility apps I ship through Grisú.
React
The web half of the same story: production front ends, design-system components, and the odd internal admin panel.
FastAPI
My go-to when a Python service needs to be fast to write, typed, and documented without extra ceremony.
Docker
How everything I build gets reproducible — from a one-off scraper to a monorepo of microservices.
AWS
Where the production workloads run, alongside CI/CD pipelines and the observability stack that watches them.
Linux
My daily driver since university, and the environment nearly everything I write ends up running on.
MongoDB
Document storage for the health-interoperability platform, where the shape of a clinical record is anything but fixed.
PostgreSQL
My default relational database — when the data has a shape worth enforcing, this is where it goes.
Apache Kafka
Event streaming for pipelines that cannot afford to lose a message, like the EcoDrive telemetry work.
GraphQL
Used when a client needs to ask precise questions of a graph of data instead of stitching together five REST calls.
MQTT
The messaging backbone of my IoT work — lightweight enough for a microcontroller, reliable enough to design a system around.
Raspberry Pi
The usual target for the robotics work: cross-compile the Rust, ship it to the Pi, watch the lidar spin.
Arduino
Where the hardware side started — the automated irrigation system that took third place at Expo-Ingenierías ran on one.
Jenkins
CI/CD in the places that already run it; GitHub Actions and GitLab CI cover the rest.
Godot
The engine behind the hyper-casual mobile games I build at Grisú — open source, small, and quick to iterate in.
Neovim
My editor. Configured once, carried everywhere, and faster than reaching for the mouse.
Obsidian
Where architecture notes, research and half-formed project ideas live before they turn into code.
Figma
For UI work — designing the interface before building it, as I did for GameConnect.
Recognition
Awards
CivicaPay Hackathon winner
Issued by Metro de Medellín, Ruta N, Davivienda
First place among more than 50 teams from 16 universities, for an ecosystem of incentives built on top of the Medellín Metro's existing payment app.
- TIThird in Colombia, Hack The Box
Third in Colombia, Hack The Box
Issued by Hack The Box
Reached third place on Colombia's Hack The Box ranking during my time working in offensive security.
- TPThird place, Expo-Ingenierías
Third place, Expo-Ingenierías
Issued by Universidad EAFIT
Third place with SIMA, an automated irrigation and monitoring system for house plants, built by a team of five on Arduino and Ubidots.
- BSBeca Ser Pilo Paga 4
Beca Ser Pilo Paga 4
Issued by Gobierno de Colombia
A full national scholarship awarded on the 2017 standardised test results, covering an engineering degree at EAFIT.
Selected work
Projects
- OSolivaw-slam
olivaw-slam
A SLAM library that produces a consistent occupancy grid and pose estimate without ROS2, C++ dependencies, or distro lock-in.
- Rust
- SLAM
- factrs
- Raspberry Pi
- OLolivaw-lidar
olivaw-lidar
A laser scanner driver with no C++ SDK, no FFI and no bindgen — and no unsafe code anywhere in it.
- Rust
- no_std
- RPLIDAR
- Embedded
- Oolivaw
olivaw
A CLI that copies vendored, editable Rust components into your project instead of adding a dependency you have to fight.
- Rust
- CLI
- embedded-hal
- ESP32
- SSpindle
Spindle
A decision wheel for the choices not worth arguing about. Live on the App Store and Google Play.
- React Native
- Expo
- TypeScript
- AAurelius
Aurelius
A Stoic reading companion — one passage at a time, without the productivity-app noise around it.
- React Native
- Expo
- TypeScript
- YBYak Bak!
Yak Bak!
A faithful simulator of the 90s Yak Bak — record, reverse, speed up, and play back. Live on the App Store.
- React Native
- Expo
- Audio
Where I have worked
Experience
Okorum TechnologiesPresent
Dec 2025 — Present · 9 mos
Medellín, Antioquia, Colombia
Technical Lead
Dec 2025 — Present· 9 mos
- Led the design and delivery of a national-scale health interoperability platform that lets Colombian healthcare providers comply with Resolución 1888 de 2025, which mandates the Resumen Digital de Atención en Salud (RDA) for electronic health records using HL7 FHIR R4.
- Delivered a fully compliant RDA generation pipeline ahead of the national deadline, architecting the backend as a Turborepo monorepo of NestJS microservices that coordinate the send, validate, convert and generate stages through message queues.
- Kept data integrity and regulatory compliance intact despite an unreliable upstream government API, by engineering fault tolerance and resumability into the queue-based system so in-flight submissions recover when the national platform is slow or unavailable.
- Cut repeated health-code validation cost with a Redis caching layer on a configurable refresh interval, so the same clinical codes are not re-validated on every request — keeping the pipeline fast under sustained multi-provider load alongside MongoDB persistence.
- Shipped the platform's core capabilities against a hard national compliance deadline by leading a cross-functional engineering team through design, implementation and delivery.
- Made production operation on AWS reliable with a GitHub Actions CI/CD pipeline and full-stack observability for logs, traces and metrics using Grafana, Loki and the LGTM stack.
- NestJS
- HL7 FHIR
- TypeScript
- Redis
- MongoDB
- AWS
- Grafana
- Turborepo
GrisúPresent
Jul 2023 — Present · 3 yrs 2 mos
Colombia
Full Stack Developer
Jul 2023 — Present· 3 yrs 2 mos
- Led the audit and development of EcoDrive with React Native, Kafka and Python FastAPI, compressing a four-month timeline into weeks.
- Built and shipped Yak Bak!, a nostalgia-driven React Native simulator of the 90s toy, plus the Spindle decision wheel and Aurelius, all live on the App Store and Google Play.
- Provided architectural design consultancy for Industrias Falcon Colombia.
- Designed and rolled out the architecture for GameConnect, and did its UI design so implementation could follow a settled spec.
- Rebuilt the company landing page in React, lifting site traffic by 150%.
- Currently developing a hyper-casual mobile game with React Native and Godot.
- React Native
- Expo
- Godot
- Python
- Kafka
- TypeScript
- Go
Publicis Global Delivery (PGD)
Dec 2023 — Nov 2025 · 2 yrs
Colombia
Frontend Developer
Jan 2025 — Nov 2025· 11 mos
- Worked on the redesign of Duluth Trading Company's e-commerce in Next.js and TypeScript, improving load performance and delivering responsive UX across desktop, tablet and mobile.
- Shipped production features and stability fixes to an internal AI agent web app built in Nuxt.js, improving workflow reliability for distributed teams.
- Owned the full delivery loop: implementation, code review, performance tuning and rollout through GitLab CI/CD.
- Next.js
- React
- TypeScript
- Nuxt.js
- GitLab CI
React Native Developer
Dec 2023 — Dec 2024· 1 yr 1 mo
- Engineered React Native components and integrated Zustand and Algolia, measurably improving engagement and conversion on the e-commerce platform.
- Wrote comprehensive unit tests in Jest, raising application quality and reducing bug incidence.
- Worked with QA to resolve tickets across core logic and UI, verifying consistency across devices with BrowserStack.
- Used Dynatrace to monitor and optimise application performance, improving user experience and system reliability.
- Helped implement a CI/CD pipeline in GitHub Actions for Android APK generation, speeding up deployment and overall development efficiency.
- React Native
- Zustand
- Algolia
- Jest
- Dynatrace
- GitHub Actions
Arc Design
Jul 2023 — Mar 2025 · 1 yr 9 mos
Spain
Full Stack Developer
Jul 2023 — Mar 2025· 1 yr 9 mos
- Designed an algorithm built on hashmaps and geohashes that substantially improved the application's performance and scalability.
- Led the architectural design, introducing MQTT and running simulations in Python.
- Built and deployed static sites on AWS and Hostinger in React, including arcdesign.io.
- Integrated the algorithm into a React Native environment for better mobile performance.
- Linux
- Python
- React
- React Native
- MQTT
- AWS
- Geohashing
Design Systems Inno
Dec 2022 — Jun 2023 · 7 mos
Medellín, Antioquia, Colombia
Problem Solver
Jan 2023 — Jun 2023· 6 mos
- Designed a system architecture for internal APIs with RabbitMQ handling intensive work asynchronously: clients receive a ticket ID to track progress while the backend runs the scraping and HTML parsing, then reports back.
- Built internal APIs to automate company processes using Go Fiber, Python FastAPI and MongoDB.
- Wrote web scraping tools and custom HTML parsers in Python with Playwright and Beautiful Soup.
- Paired with colleagues to fix critical bugs, keeping deliveries on time without dropping quality.
- Automated contract signing with a Python script.
- Built several administration panels in React with Redux and Saga.
- Optimised React build output, taking one bundle from 3.46 MB down to roughly 886 KB, with similar gains elsewhere.
- Improved the quality and build speed of Dockerfiles for React and Angular applications.
- Improved logic and code quality across several React Native apps using TypeScript.
- Go
- Python
- FastAPI
- MongoDB
- RabbitMQ
- Playwright
- React
- Docker
Security Consultant
Dec 2022 — Dec 2022· 1 mo
- Ran an external penetration testing engagement over a week and a half.
- Documented the findings across the software and part of the infrastructure.
- Wrote up recommendations for improving software and infrastructure quality.
- Penetration Testing
Aligo - Defensores Informáticos
Aug 2022 — Oct 2022 · 3 mos
Medellín, Antioquia, Colombia
Red Teamer
Aug 2022 — Oct 2022· 3 mos
- Pentested websites using Burp Suite, Metasploit, custom scripts and manual exploitation.
- Ran OSINT with Maltego, Sherlock and fuzzers.
- Developed pentesting tooling and custom scripts in Nim, Python and Go.
- Built templates for phishing campaigns.
- Used OWASP ZAP, Nessus and Acunetix to speed up engagements.
- Python
- Go
- Nim
- Burp Suite
- Metasploit
- Nessus
- OSINT
Geta Club Play
Feb 2021 — Jun 2022 · 1 yr 5 mos
Medellín, Antioquia, Colombia
Cyber Security Analyst
Sep 2021 — Jun 2022· 10 mos
- Was handed an external pentest report with roughly 800 vulnerabilities across our projects and brought it below 390 in four months — about half of them fixed.
- Used OWASP ZAP's DAST capabilities to review the company's web applications automatically.
- Used SonarQube's SAST capabilities to review the company's code automatically.
- Built a low-cost DevSecOps pipeline to catch common vulnerabilities before release.
- Worked with the AI team to sanitise user requests and close off SQL injection.
- Worked with IT on backup policies for employee files and repositories.
- Simulated reverse-engineering attacks on project APKs, then worked with the development team to mitigate the paths that exposed useful information.
- Developed a security plan with the IT team based on ISO/IEC 27001.
- Implemented hardening across parts of our infrastructure.
- Worked with the AI team on part of a SOC that could deliver value to technical and non-technical staff alike.
- DAST
- SAST
- OWASP ZAP
- SonarQube
- ISO 27001
- DevSecOps
- Reverse Engineering
Cyber Security Trainee
Aug 2021 — Aug 2021· 1 mo
- Planned four months of cyber security work across three company products.
- Implemented a DevSecOps pipeline for those three products.
- Introduced static application security testing across several products.
- Found vulnerabilities and worked through them with the development team.
- DevSecOps
- SAST
Software Quality Assurance Tester
Feb 2021 — Aug 2021· 7 mos
- Captured more than 100 bugs in four months across seven company products, raising the acceptance criteria leadership held the team to.
- Led a four-person team providing quality assurance on three projects alongside the development team.
- Automated over 15% of testing with Selenium and ran the remainder manually.
- Refactored and retrofitted a legacy C++ WebAssembly application, improving code quality by 45%.
- Ran more than 20 desk checks, cutting pull request volume by 25% and saving the tech lead's time.
- Wrote test plans for two Unity 3D projects and documented them, and reviewed documentation for an Angular / .NET Core project.
- Ran functional, online, usability and stress tests.
- Python
- Selenium
- Unity
- Test Planning
- QA
Personalized tutorials
Jan 2012 — May 2022 · 10 yrs 5 mos
Medellín, Colombia
Independent Tutor
Jan 2012 — May 2022· 10 yrs 5 mos
- Tutored adults, teenagers and children in mathematics, physics, programming, chemistry and social studies, narrowing over time to maths and programming.
- Helped more than 100 students with personalised tutoring across those subjects.
- Worked closely with more than ten students who were failing, taking them to near-top marks and a pass.
- C++
- Teaching
- Mathematics
- Physics
Get in touch
Say hello
Working on something interesting, or hiring? Email is the fastest way to reach me.
Based in Medellín, Colombia