In one line
I am Gorka Hernandez Villalon, a Computer Engineering student at Universitat Pompeu Fabra in Barcelona, an iOS developer and an AI automation specialist.
Available for freelance projects and collaborations
Hi, I'm Gorka Hernandez.I build products, iOS apps and AI automations.
Computer Engineering student at UPF (Barcelona). Creator of GymTracker on the App Store, the SEPE bot featured by Chema Alonso, and co-founder of NexaVision AI. Passionate about FinTech and useful software engineering.
Cerdanyola del Valles, BarcelonaApp Store 5.0 / 5 (GymTracker)Featured on El Lado del MalCo-founder of NexaVision AI
PythonSwift / SwiftUIn8nLLMsNext.jsPandas
Projects20+Apps, bots and automations
Jobs analyzed10KLinkedIn Jobs Bot
Core stack4Python · Swift · n8n · LLMs
Languages3ES · CA · EN
Professional profile
iOS, AI and automation work with real impact
A quick summary of who I am, what I build, which projects can be verified and how to collaborate with me.
What I build
I build native iOS apps, n8n workflows, Python bots, LLM systems, scraping pipelines, business automations and FinTech projects with quantitative analysis.
Public projects
My main projects include GymTracker on the App Store, SwipeClean GHV on TestFlight, SEPE Availability Bot cited by Chema Alonso, NexaVision AI, FadeChain, LinkedIn Jobs Intelligence Bot and Croissant Adventure.
Collaborations
The main path is the protected contact page on this portfolio or LinkedIn. I am open to freelance collaborations in AI, iOS, automation, Python and FinTech.
About
Engineering, product and automation with judgment
I like building software that creates real value: apps people use every day, bots that solve real problems and systems that give time back to businesses. I combine technical rigor with strong UX judgment.
What I do
I design and build products end to end: architecture, code, UX, deployment, SEO and growth. I work especially well at the intersection of native mobile, AI automation and quantitative analysis.
- • Native iOS apps with Swift and SwiftUI.
- • Multi-tenant automations with n8n and LLMs.
- • Python bots and advanced scraping.
- • Quantitative finance analysis with Pandas / NumPy.
Education
BSc in Computer Engineering
Universitat Pompeu Fabra (UPF) · Barcelona, Spain · Expected graduation: early 2027
Certifications
- Winner · UPF Blockchain Hackathon · FadeChainUniversitat Pompeu Fabra · Cryptography and Engineering Security
- Google Cloud Computing & Digitize Your BusinessGoogle Cloud
- Certified Drone Pilot (A1/A3)AESA - Spanish Aviation Safety Agency
- Finance AcceleratorFinancial acceleration program
Languages
Spanish · NativeCatalan · NativeEnglish · Intermediate
Stack
Tools I use every week
My stack is built to ship product quickly without sacrificing quality. Python, Swift, n8n and LLMs are the core; the rest is judgment.
Languages
- Python92%
- Swift88%
- JavaScript / TypeScript85%
- C / C++75%
- Java70%
Mobile & Frameworks
- SwiftUI90%
- UIKit78%
- Xcode88%
- CoreData82%
- Pandas / NumPy88%
- PyAutoGUI85%
Automation & Cloud
- n8n95%
- REST APIs90%
- LLMs / OpenAI88%
- Linux / Bash80%
- Git / GitHub90%
- Google Cloud70%
Other
- Quantitative Finance78%
- Technical SEO82%
- CMS & Content Ops80%
- Web Scraping85%
Four quick proofs
Products, automation and blockchain
A compact sample of my work: native iOS apps, an AI pipeline with n8n and a blockchain hackathon-winning project.
LiveFeatured
GymTracker
2025 – PresenteNative iOS app for logging workouts, planning weeks and understanding progress without an account.
Offline-first training product that turns sets, reps and running sessions into useful history, with a 1,324-exercise atlas, Smart Swap and progress metrics.
SwiftSwiftUICoreDataXcodeiOS 18.6+Localization
Mobile · Sole designer and developer
LiveFeatured
SwipeClean GHV: Fotos
2026Native iOS app for reviewing a large photo library, freeing space and keeping control over every deletion.
Photo and video cleaning tool built around visual decisions: keep, skip, protect or send items to a review queue before iOS asks for final confirmation.
SwiftSwiftUIPhotoKitPhotosUIVisionAVFoundation
Mobile · Sole designer and developer
FeaturedIn progress
LinkedIn Jobs Intelligence Bot
2026Bot and n8n workflow to discover, filter and prioritize high-fit job offers.
Automation system that collected roughly 10,000 LinkedIn job offers in 3 hours, analyzed ATS patterns and helped me get 10 interviews from only 15 emails.
PythonSeleniumn8nLinkedInATS AnalysisLLMs
Automation · Author · Automation & AI Workflow
FeaturedOpen Source
FadeChain
2026Winner of a UPF blockchain hackathon: private voting with zero-knowledge proofs.
On-chain voting system on Ethereum Sepolia with Groth16 zk-SNARKs, Merkle trees, a privacy relayer and time-weighted voting. Winning project at the UPF blockchain hackathon.
SolidityEthereum SepoliaCircomzk-SNARKsGroth16Merkle Trees
Blockchain · FadeChain team · Blockchain & ZK
Experience
Professional path and real projects
De Banc Sabadell · Zurich a NexaVision AI: experience across regulated environments, production automations and own products in the market.
Co-founder · Automation & AI Developer
Sep 2025 - PresentAndorra la Vella, Andorra
I architect and deploy multi-tenant n8n environments on VPS infrastructure to manage isolated instances per client. I build custom automation workflows in JavaScript that integrate APIs, LLMs and business logic.
- Secure multi-tenant architecture on VPS infrastructure.
- AI agents for support, leads, social media and internal processes.
- Integrations with OpenAI, CRMs, Gmail and WhatsApp Business.
n8nJavaScriptLLMsOpenAIVPSAPIsSoftware Development & Automation Trainee
Mar 2026 - PresentBarcelona, Spain
I develop internal AI projects and process automations in a finance joint venture. I build services with Python, FastAPI and Spring, integrate Claude, Gemini and GPT APIs, and apply OSINT with LLM web-search tools in a regulated banking and insurance environment.
- Internal AI projects and process automation.
- Claude, Gemini and GPT API integrations.
- OSINT assisted by LLM web-search tools.
- Design, testing and maintenance in a regulated environment.
PythonFastAPISpringClaudeGeminiGPTLLM APIsOSINTWeb SearchAutomationTesting
Collaborations
Have an idea? Let's make it real.
Open to freelance projects in AI automation, iOS apps, FinTech and digital products. I usually reply in less than 24h.