Lima, Perú · Software Developer
Paulo
Llanos
I build complete products — frontend to backend, mobile to cloud. I modernize platforms, optimize databases, and craft Android apps with Kotlin. All fueled by curiosity and coffee.
About Me
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Full Stack, Mobile & AI Developer
I'm Paulo Llanos, a developer with 5+ years shipping production software. I work across the stack — React, Node.js, .NET, Python, Kotlin — solving real business problems, not just writing code.
At Belcorp I lead platform modernization, database optimization, and Android development. I manage small teams with rigorous code review and mentor juniors toward autonomy.
I care about the intersection of tech and product. The best code solves a real problem — not the one that looks clever in a repo. Exploring AI agents and LLMs to build smarter solutions.
Beyond shipping code, I run my own production infrastructure — self-hosted server with Cloudflare tunnels, CI/CD pipelines, automated monitoring with Uptime Kuma, and Linux daily-driving on CachyOS. I automate everything that can be automated.
International Publication
My research on Blockchain + FHIR HL7 for electronic health record interoperability was published in a Q2 international journal. Technology meets real healthcare impact.
Beyond the Keyboard
Linux & Open Source
Daily driving CachyOS and Omarchy with Hyprland. Tiling, ricing, and kernel tweaking are my happy place.
Cycling
Road and mountain. Nothing clears the mind like a long ride.
Tinkering & Reverse Engineering
Breaking things to understand how they work. Desktop apps, APIs, game modding — if it runs, I want to peek inside.
Tech Obsession
Building tools, automating workflows, and staying on the edge of what's possible in software.
Music
Hip-hop, jazz rap, boom bap, lo-fi, metal and indie. Tribe Called Quest, Deftones, Joji, Slipknot, Mac DeMarco — if it hits, it's in the rotation. Music is fuel for deep work.
Open Source
Believer in open ecosystems. Contributing, tinkering, and advocating for software freedom. Linux, FOSS tools, and community-driven development.
Android Ecosystem
Passionate about the Android platform — from Kotlin development to custom ROMs. The openness and flexibility of the OS is what makes it special.
Gaming
Ranked Apex Legends and Dota 2. Competitive gaming teaches pattern recognition, fast decision-making, and staying calm under pressure.
My Projects
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Professional Projects
Join Belcorp
Belcorp · 2025
Consultant registration platform powering operations across 12 countries. Modernized the backend stack, optimized database performance, and built Android features with Kotlin.
Rimac Monitoring Center
Rimac Seguros · 2024
Real-time insurance monitoring platform. Modernized the frontend architecture, upgraded the runtime, and built geospatial features with interactive map layers.
HolaLink
CRD · 2023
Serverless web platform on AWS Lambda with Amplify auth. Mobile-first UI and comprehensive test coverage with Jest.
Personal Projects
Voting System
Personal · 2026
Voting system that mirrors the Peruvian electoral process: voter roll, polling stations, digital ballot, tally sheets with blank/null/challenged votes, live public count, consistency auditing, and QR verification. Self-hosted with Docker and Cloudflare Tunnel.
QuipuMed
Personal · 2025
Electronic health record system for Peruvian clinics. SOAP notes, prescriptions, certificates, lab orders, digital signature and agenda. Next.js + Bun + PostgreSQL + MinIO S3.
Notes
Markdown notes app with auth, real-time share links, view tracking, and S3 attachments. Self-hosted on archserver with Cloudflare Tunnel.
Portfolio
Personal portfolio built with Next.js, featuring a polished UI, i18n, IntersectionObserver navigation, and self-hosted CI/CD on archserver.
MCA Makeup
Booking platform for a professional makeup artist. Real-time calendar, testimonials system, and full admin panel.
Chicama Map
Interactive map and directory of local places in Chicama. Public discovery flow and admin content management.
BioChain
Healthcare interoperability platform with FHIR R4 and SMART on FHIR. Blockchain for data integrity and traceability.
Personal Finances
Personal finance tracker with expense dashboard, categories, budgets, and JWT auth. Bun + Elysia backend.
Peru in Map
Place discovery app for Peru. Astro frontend, Hono backend, offline-capable as a PWA.
GitHub Profile Fetcher
API built with Bun and Elysia for querying public GitHub profiles. In-memory caching and structured logging.
Carioca Game Web
Browser card-game interface experiment. TypeScript with a focus on responsive UX.
YT-DLP GUI Electron
Desktop GUI for automating downloads with yt-dlp. Built with Electron and TypeScript.
Professional Experience
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Trajectory and technical depth
Belcorp
Apr 2025 – PresentSoftware Developer · Lima, Peru
- Led platform modernization, eliminating critical technical debt
- SQL Server optimization, reducing query times by 40%
- Full-flow automations with JS scripts across 12 Latam countries
- Android development with Kotlin and Jetpack Compose
- Deep-dived into Kotlin — coroutines, flows, Jetpack Compose internals
- Continuous legacy code improvement
Rimac Seguros
Nov 2023 – Mar 2025Frontend Specialist · Lima, Peru
- Built mobile-first interfaces for real-time monitoring platform
- Modernized frontend architecture, reducing bundle size
- Geospatial features with interactive map layers
- Zero-downtime runtime and library upgrades
CRD
Aug 2022 – Nov 2023Software Developer · Lima, Peru
- Designed serverless API on AWS Lambda with Amplify auth
- Robust validation and comprehensive test coverage
- Mobile-adapted mapping platform with reusable components
Education
Bachelor in Information Systems Engineering
Universidad Peruana de Ciencias Aplicadas (UPC) · 2016 – 2022
Certifications
Get in Touch
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Open to freelance opportunities, collaborations, or just an interesting conversation.