Hypertech
Jul 2026 - PresentCurrent role
Applied AI Engineer
Full-time- I bring AI into the team's internal processes and into the financial software the consultancy builds for its clients.
The hard part is almost never the model.
I like building crazy ideas and making them survive production.
David Herrera
Applied AI Engineer
Software, data & AI
I started out building WordPress sites and managing traditional hosting. Today I design and ship systems with applied AI.
I work across the whole stack, but my job right now is RAG, MCP and MLOps over corporate data: databases nobody documented, scanned PDFs, spreadsheets with fifteen tabs.
I also give talks on applied AI and data science, at conferences and universities.
Professional journey
Three companies and five roles, from intern to Applied AI Engineer.
BAACC Systems
Mar 2025 - Jul 2026
AI Solutions Architect
Full-time- Connie, from zero to production: I designed the RAG platform and wrote 80% of the system. Three of the consultancy's clients now use it daily.
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- End-to-end RAG pipelines on Azure: ingestion, chunking, retrieval and serving, with prompt observability.
- MCP servers connecting internal data sources to LLM clients: models consume tools without bespoke glue code.
- Brought MLOps practices into the team: retrieval evaluation, prompt and model versioning.
LLMsRAGMCPMLOpsAzure
Jan 2024 - Mar 2025
Fullstack Developer
Full-time- Desktop apps in .NET and Python for the shop floor, running 24/7.
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- Internal web apps with .NET and DevExpress for operations workflows.
- Database design and administration on SQL Server and PostgreSQL.
- Android app with RFID reader for field inventory and traceability.
.NETPythonSQLAndroid
Sep 2023 - Jan 2024
Junior Fullstack Developer
Internship- Web modules and internal APIs.
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- Database maintenance and technical documentation of the stack.
MVCSQLAPIs
DEC Marketing
Mar 2022 - Sep 2023
Junior Web Developer
Internship- Websites and support with HTML, CSS, JavaScript and CMS: WordPress, Joomla, OpenCart.
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- Hosting, certificate and domain administration.
- Corporate email account management.
HTMLCSSJavaScriptWordPress
Selected work
4 cases · 2024 - 2026
Software someone opens in the morning to get their work done.
Connie
In productionYou ask the company's databases, PDFs and spreadsheets in plain language, and it answers citing where each figure came from. Multi-client and multi-source, with enterprise auth.
- Role
- Design + 80% of the code
- Clients
- 3 in production
- Sources
- SQL · PDF · XLSX
- Link
- Internal system
HandHeld RFID
In productionAndroid app with a Zebra RFID reader. Inventory went from taking weeks (or never happening) to being done walking the client's warehouse.
- Scope
- End to end
- Before
- Weeks of inventory
- After
- A walk through the warehouse
- Link
- Internal system
Automotive Traceability
DeliveredA WinForms desktop app for the shop floor. Every part gets logged as it passes the stations on the assembly line.
- Where
- Shop floor
- Volume
- Thousands of parts / day
- Shift
- 24/7
- Link
- Internal system
Portfolio
LiveThis site. Astro, hand-written CSS and TypeScript, built from scratch. It's on its fourth version.
- Template
- None
- Languages
- ES · EN
- Client-side JS
- Almost none
- Link
- View repo
How I learn
Where I studied, and what I keep learning on my own.
Academic
- 2022 - Present
Technology Industry
- 2019 - 2024
Information & Communication Technologies Engineering
- 2015 - 2018
Programming Technician
Certifications
- 2024
Azure AZ-900: Microsoft Azure Fundamentals
- 2022
Python for Everybody
On stage
Around a hundred people per session. I bring systems that are already in production, with their numbers.
- Data Day 2025
- EGADE Business School - Tecnológico de Monterrey
- UPVM Tultitlán
- TESCo - TecNM
Topics
Generative AIRAG & MLOpsData science
Let's talk
If you've got an idea, or you just want to say hi, write me. I usually reply the same day.
Send me a messagehello@davidherrera.dev