Tech Lead · VidaCaixa
Technical leadership in a critical environment
Frontend architecture, standards, code reviews and alignment with backend, QA and business in the financial and insurance sector.
Jorge Carrera Diez
Available for new projects
Web product,from architectureto production.
Right now: banking and insurance in Spain, a Swiss academic index, and a weather platform people use every day.
Product architecture
How the product is structured, what ships in each release and what stays out.
Generative AI and agents
Agents and models integrated into the product, with their limits, cost and maintenance.
Data and infrastructure
Databases, caching, deployments and the server everything runs on.
Projects
Three projects you can actually open and poke at.
I develop one end to end, another is a client in Switzerland and the third has been publishing for twelve years.
Three fronts, right now.
Technical judgement and coordination inside an enterprise environment, full technical ownership of an international product, and a weather platform live in production.
Tech Lead · VidaCaixa
Technical leadership in a critical environment
Frontend architecture, standards, code reviews and alignment with backend, QA and business in the financial and insurance sector.
Freelance · EQx, Switzerland
Technical handover of a global index
The Elite Quality Index measures across 151 countries whether elites create value or extract it, under academic direction from the University of St. Gallen.
Own product · Snowy
Where I find out if I was right
Built end to end, from server rendering to the radar and the deployments. It is in production and still growing.
Snowy
In production, and in use every day.
Building it combines frontend, backend, cache, data, SEO, infrastructure and AI decisions under real constraints of cost, performance and maintenance.
Precipitation radar
Half-hour steps over the stations reporting live.
Forecast, with confidence
Three models cross-checked, a confidence indicator and 1,171 live stations.
User profile
Stations, reports, streak and queries: the community side of the product.
Available for new projects. Email me
Next.js · React · TypeScript · NestJS · MySQL · Redis · Docker · Coolify · AI SDK
Live data
Precipitation, live.
Snowy's precipitation radar, half an hour per step, over the 1,862 stations reporting live.
Snowy, last 90 days
14.687.005
organic search impressions, with no ad spend.
- visits from search
- 242,000visits from search
- average position on Google
- 8.1average position on Google
- registered users
- 1,400+registered users
Right now
read at
1,186 stations reporting right now, across 6 different networks.
- lowest
- 6.3°Das - AeròdromCataluña
- highest
- 30.1°AlicanteComunidad Valenciana
These numbers are not written into the page: the Snowy API just served them, the same one explained below. Open the map
How I work
What sits behind a screen that loads fast.
01
Half the work is deciding what to cut
Every feature that ships has to be maintained for years, so the decision that weighs most is usually what stays out.
02
Sixteen models that disagree
Sixteen weather sources with different forecasts for the same point, and one interface that has to give a single answer.
03
Maintaining, not just shipping
If the radar stops rendering on a Sunday night it has to be fixed, and that shapes how the thing is built from day one.
IA generativa
AI with a concrete job inside the product.
I work on agents, RAG, tools, MCP and LLMs from one simple idea: AI should solve concrete tasks inside the product and stay as maintainable as any other part of the system.
reason
Agent
plan, short memory and tool choice
input
Interface
UX, streaming and feedback
tools
Tools
MCP, APIs and contracts
context
Data
RAG, sources and permissions
guard
Control
logs, limits and evaluation
Track record
Enterprise consultancy and international product at once: banking and insurance on one side, a Swiss foundation and a platform in production on the other.
01
July 2026 - Present
Freelance software engineer
Foundation for Value Creation · EQx
Technical handover of the digital products of the Foundation for Value Creation: the public site of the Elite Quality Index and the private console behind it. The index measures across 151 countries whether elites create value or extract it, under the academic direction of the University of St. Gallen.
02
October 2025 - Present
Tech Lead
VidaCaixa · Capgemini
Frontend technical leadership on a strategic project in the insurance sector, defining architecture, development standards, best practices and the integration of generative AI into enterprise flows.
03
March 2025 - October 2025
Lead Software Engineer
Openbank, Santander Group · Capgemini
Built the UI of a banking operations system for branches, focused on React, scalability, maintainability and hexagonal architecture patterns.
04
June 2023 - March 2025
Full Stack and Frontend Developer
Inditex · Minsait (Indra)
Development and maintenance of Inditex's store management terminal, deployed across thousands of points of sale worldwide.
05
February 2022 - June 2023
Full Stack and Frontend React Developer
Hiberus Digital
Web applications in production, reusable components and projects such as the Hiberus corporate site and SivasDescalzo.
06
September 2021 - December 2021
Frontend Vue Developer (intern)
JIG
Frontend internship with Vue, CSS, HTML, Docker and Git, building a site for transport users and an admin panel.
Jorge Carrera Diez
Software engineer. Web product from architecture through to production.
Computer engineer from the University of La Rioja, chartered by the Official Association of Computer Engineers of La Rioja. Over five years in the industry: currently Tech Lead in banking and insurance, and freelance engineer for the Swiss foundation that publishes the Elite Quality Index under the University of St. Gallen. Alongside that I build Snowy, a weather platform with real users that I use to work product, data and infrastructure end to end.
- Based in
- Logroño, La Rioja, Spain
- Languages
- Spanish (native), English (intermediate)
- Education
- Computer Engineering
If my profile fits, let's talk.
If you have something in mind and are not sure it fits, write to me and I will tell you straight. If I am not the right person, I will say that too.
Remote, European hours, in Spanish or English.