Córdoba, Argentina
I build systems that move cities.
Martín Toledo — Technical Lead & Full Stack Developer. Taxi, bike sharing and public transport apps, from the vehicle's GPS to the cloud.
Córdoba · real data
Córdoba's avenues, drawn in points.
Behind every app there are thousands of GPS positions streaming in nonstop. I work on the systems that receive them, process them and show them in real time, without collapsing.
- Avenues (OpenStreetMap)
- Simulated vehicles
Map © OpenStreetMap contributors
Projects
What I built, end to end.
From client discovery to production deployment.
React Native · Case study
Entaxi
Led the migration of the driver app to React Native: native hardware access, lower RAM usage and a faster app.
~500
drivers use the app with Rapitaxi
In-house CI/CD
Self-hosted GitLab with registry and runners. Every tag deploys to production, with rollback.
Monitoring & infrastructure
Prometheus, Grafana and n8n alerts for the whole company's servers.
SaldoBus
NFC transit card top-up, with AES-256 encryption.
✓ Card read · Balance topped up
TuBondi
↗Full rebrand of the public transport app.
Córdoba City Hall
Tu Libreta Digital and the taxi driver registry, built end to end.
Tu Libreta Digital ↗BiciCba
bicicba.comMy first project: the website, admin dashboards and reports for Córdoba's public bike sharing system. These numbers come from those reports.
Since launch
- trips
- 313,377
- trips
- registered users
- 129,124
- registered users
- + 11,206 tourists
- km ridden
- 327,258
- km ridden
- of CO₂ avoided
- ≈ 75 t
- of CO₂ avoided
- versus riding the same km in a mid-size car
Data as of Oct 20, 2026
About
Behind the code.
I'm Martín, a Systems Engineer from UTN in Córdoba, Argentina. I joined Micronauta as the only developer and now lead a team of four: I'm the bridge between the code, the clients and management.
I like problems you can see out on the street: a driver charging for a trip, a bike leaving a station, a bus reporting its position. I enjoy designing a database as much as explaining to a client why one approach beats another.
And I believe in sharing what I learn: I ran Git, Docker and Jira trainings for the whole company and gave a talk on how we process GPS data in real time.
- developer on the team
- 1st
- developer on the team
- Systems Engineer, 2024
- UTN
- Systems Engineer, 2024
- speaker on real-time GPS
- TECOM
- speaker on real-time GPS
Off the clock
- Strength training
- Co-founded an online store with my brother
Career
Experience
Education
Systems Engineering
National Technological University (UTN) — Córdoba
2018 — 2024
Jul 2022 — Present
Technical Lead & Full Stack Developer
Micronauta (Globalvisum)
- Joined as the only developer; I now lead a team of 4.
- Technical contact for management and clients: demos, scoping and integrations.
- I start projects, take them to production and hand them over while still leading them.
- Set up self-hosted GitLab with CI/CD and dockerized every application.
- Trained the company in Git, Jira and Docker for ISO certification.
2020 — Present
Web & Systems Developer (freelance)
Córdoba Swimming Federation
- Institutional site on Cloudflare Pages (fcn.pages.dev) and systems for swimming events.
Tools
Stack
What I work with every day.
Mobile & front end
Back end, data & AI
Maps & infrastructure
Talks
From hardware to the cloud
TECOM (in Spanish)
From hardware to the cloud: the engineering behind smart mobility
How we process TCP connections and GPS data from bus fleets in real time without the system collapsing.
Let's build something together
I'm open to new challenges. Send me an email and I'll get back to you soon.
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