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JIV
JIV

Juani VallejosBuilding automated ecosystems

  1. Connect

    Your apps, data and channels working as one system, so information flows without anyone copying it by hand.

  2. Automate

    Repetitive work runs on its own, reliably and with fallbacks, so your team spends its time on clients and decisions.

  3. Sync

    Everyone sees the same, up to date information. Sales, operations and finance on the same page, always.

What it looks like running

A typical flow, step by step: something happens, the system picks it up, does the work and lets everyone know. Nobody copies data by hand.

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What can I do for you

From the first idea to something running in production. I design, build and connect what your business needs.

Automation and operations
Onboardings, approvals, invoices and reports run on their own. Fewer errors, nobody copying data between apps, and a team focused on clients.
What you getHours back, every week
AI and agents
Ask about sales, invoices or a client and get a real answer from your own data. AI agents handle the follow up so your people can decide.
What you getAnswers in seconds, not hours
Custom tools
Tools shaped around how you work, not the other way around. Built AI first, and you own the code and the data.
What you getSoftware that fits, and stays yours
Build your own tools
Products, end to end
Design, development, payments and launch in the hands of someone who thinks product. Something real in your users’ hands, fast.
What you getFrom idea to a working product
Integrations and data
Your CRM, WhatsApp, payments and spreadsheets share the same information, so every decision is made with the right numbers.
What you getOne source of truth
Web and digital experiences
Fast, clear websites and landing pages built for one thing: getting the right people to reach out.
What you getVisits that turn into clients

Automate your processes, onboardings, invoicing, collections, approvals, reports, support and documents

Every hour your team spends moving data around is an hour not spent on clients. Let’s find those hours and give them back.

Let’s talk
Client onboarding

New clients get a smooth start without anyone chasing paperwork: contract, access, folders and kickoff, set up in minutes.

Sales follow ups

No opportunity forgotten. Every contact lands in your CRM with context, and reminders and follow ups go out on time.

Invoicing and collections

Invoices go out the moment the work is done, reminders before payments are late, and accounting that always matches.

Internal workflows and approvals

Requests reach the right person and get approved in one click, with a trail you can check later.

Reports and data

The numbers you need, up to date and in one place, instead of a Monday spent copying spreadsheets.

Customer support

Faster answers on WhatsApp and email, with AI drafting the replies and your team keeping control.

Chat with your tools

Your tools stop being places you go to look things up. You ask, Claude checks your systems and does the work.

Claude Skills, set up for you

Skills that know your processes, your tone and your templates: proposals, reports, onboarding checklists. Customized and shared with your whole team.

Secure integrations via MCP

Claude reaches your CRM, billing, files and databases through MCP servers I build and host. Scoped permissions per tool, read only where it should be, and your keys stay on your side.

Chat with your tools

Ask questions and get answers with real numbers. Then ask it to act: send the reminder, update the deal, post in Slack. From Claude, Slack or your own app.

I’ve been shipping a lot lately

In this AI era, here are a few of my own products and tools, plus some projects I built for clients.

All projects

Websites built over WhatsApp with AI: describe your business in a chat and get a live site in minutes, with every later change requested the same way.

  • Web Development
  • Automation

A calisthenics coach in your phone: it films you, corrects your form out loud in real time, and trims your best attempt automatically.

  • Web Development

A 3D street calisthenics browser game: train bar tricks, win tournaments and climb a global ranking.

  • Web Development

An app to track personal expenses with an Intelligent Whatsapp assistant that allows you to track your expenses automatically.

  • Automation
  • Web Development

The tools I have experience with

Every project is a hub: your apps on the outside, one system in the middle.

Juani Vallejos

About me

I build AI first products, tools and automations from Buenos Aires, Argentina. With over seven years of experience, I help small businesses and startups replace manual work with systems that fit how they actually operate, from the first idea to something running in production.

Coming from Digital Marketing and Multimedia Design, I think about the business and the people using what I build, not just the code. Today I work AI first: I build custom tools and products end to end, choosing the stack each project actually needs. I connect AI to company systems through MCPs, Skills and harnesses, and I design the automations behind them, with the fallbacks that keep them running when something fails. I also build commercial landing pages and front ends, email flows and SEO.

As a consultant and former lead Automation and Frontend Developer at an Automation Agency, I’ve worked with diverse clients to scale their digital presence and optimize their business processes. I am committed to helping businesses grow by leveraging technology, automation, and design principles tailored to their unique needs.

I’m driven by a love for technology. In my personal time, you’ll find me automating my smart home and developing tools to enhance my workflow. Outside of tech, I am passionate about calisthenics, fitness, travel and food.

Get in touch

I develop deep, long term relationships with my clients

100%

Job Success. Top Rated Plus Freelancer on Upwork

“I worked with Juan on several advanced projects spanning several months. He’s very hardworking, always communicative, and went above and beyond wherever he could. Highly recommend.”
LCLiam CampbellC.E.O. and Founder, Fynch★★★★★
“This was the first project I hired Juan to work on. It turned out very well and therefore I will definitely hire him again next time.”
CChristianC.E.O. and Founder, 3rdbase★★★★★
“I highly recommend Juan as an excellent specialist with strong communication skills. Everything was always professional, timely, and straightforward. I’d recommend him to anyone and would be happy to work with him on future projects.”
DDimitriOwner, GetTraff★★★★★
“Juan is a brillant WordPress developer who has always gone above and beyond to help us be successful. He’s also very fair and transparent in the way he has engaged with us. We sincerely could not be happier with the work that Juan has produced and I personally can’t wait to have another opportunity to work with Juan on a project.”
FGFred GasseHead of Business Development, nFormal★★★★★
“Loved working witbh Juan. He provided excellent knowledge, creative thinking and tenacity to solve a difficult problem. Huge thanks.”
PPaulMuch Group★★★★★
“I have found Juan to be reliable, hardworking and honest. Furthermore, he has great organizational and verbal communication skills. He has always shown a pleasant behavior when working with people, he is extremely organized, can work independently and is able to follow through to ensure that the job gets done. Juan has always been willing to offer his assistance.”
SMSebastian MatuteC.E.O and Founder, Grupolive Cultural Xchange★★★★★
“Juan is definitely going to be our to go guy for all future automation work”
MMohammedF.C.G. Perfumerie★★★★★
“Juan is very reliable, trustworthy and accommodating. I have loved working with him and will hire him for sure in the future. He worked on my website and went above and beyond, helping me with a lot of other improvements, landing pages, ideas, even giving me advice for social media without asking him, etc. Juan is very responsive, kind and knows how to work remotely with a team.”
ASAndry SmithC.E.O and Founder, LatiNet★★★★★

Get in touch

Bring me your business challenges and I’ll roll up my sleeves and get to work.

Book a call