Before Jesus Castillo had a stablecoin wallet, a Y Combinator batch or a San Francisco address, he had the san. In Venezuela, the word describes a rotating savings circle: friends or relatives put in a fixed amount, one member receives the pot, and the turn passes around the group. It is finance stripped to its social skeleton. No marble branch. No rewards points. Just timing, reputation and the awkward but effective pressure of people knowing where you live.
Castillo has said a san helped sustain his own household during difficult periods. That memory explains more about Kontigo than any blockchain diagram. The company's first public version was software for organizing individual and group savings in digital dollars. The original pitch did not ask Venezuelans to admire crypto. It asked whether a practice already woven into daily life could become easier to track, safer to manage and less vulnerable to a weakening currency.
There is a practical founder lesson tucked inside that origin. A market often invents its own product before a startup arrives. It just calls the product a habit.
An education in workarounds
Castillo studied economics at Universidad Católica Andrés Bello, but his working education wandered cheerfully outside the syllabus. In 2017, he started Bicuye, an agave-based craft spirit with a membership club. It is the odd-looking first square on his résumé, until you notice what it taught: how a product becomes identity, how scarcity creates attention, and how a community can matter as much as the bottle in its hand.
Then came Pidelo, a Venezuelan microlending and financial-education platform for neighborhood merchants. Castillo worked on the venture as a co-founder and commercial leader. A pilot in Petare issued 500 microloans and reported a 1.2 percent delinquency rate. The wider ambition was to reach shopkeepers with thin or nonexistent formal credit histories, using business information and a technology-assisted score where a conventional bank saw mostly blank space.
The work put Castillo close to the small, stubborn economics of a bodega: inventory turns, daily cash flow, the difference between a loan on paper and stock on a shelf. Financial inclusion can sound saintly from a conference stage. At street level, it often means whether a merchant can buy enough goods on Tuesday to be open on Friday.
In 2022 he moved into generative AI with Oha AI, a marketplace that charged micropayments instead of subscriptions. The team reported reaching 40,000 users and earned a place in buildspace's SF1 program, bringing Castillo to San Francisco. His personal site still has the scrappy energy of that period. It opens with “Hi! I'm Yisus” and describes a three-time founder working across AI, fintech and curated spirits. Most biographies sand away the strange parts. His puts the liquor beside the language models and lets the reader cope.
His public vocabulary is equally unwilling to sit still. Castillo can talk about the financial-inclusion gap in one breath, call a Bitcoin feature a piggy bank in the next, and then describe an app with the Venezuelan question, “¿Qué caraj@ es Kontigo?” The register is deliberate. Conventional finance protects its authority with difficult words. Castillo's instinct is to replace those words with objects and rituals people recognize: the wallet, the piggy bank, the neighborhood circle, the payment sent to a relative.
It also reveals the tension in his style. He is given to enormous targets and noisy challenges, but his better product ideas are intimate. The claim may concern 1.7 billion excluded people; the design benchmark is one grandmother. The company may talk about global rails; the useful moment is a freelancer receiving a payment or a shopkeeper preserving this week's earnings. His aspiration travels by rocket. His interface comes home by bus.
That combination helped Castillo move between startup rooms that reward scale and Venezuelan customers who reward utility. It can create friction, particularly when a slogan outruns the sober obligations of a financial product. Still, it gives Kontigo a recognizable voice in a field crowded with interchangeable promises. The company does not sell the blockchain as an exotic destination. It tries to make the blockchain disappear behind ordinary money verbs.
The route to Kontigo
The product changes its clothes
Castillo and Gino Guatavita founded Kontigo in 2023. The company launched publicly in February 2024 with roughly 24,000 Venezuelan users and a recognizable proposition: save alone, or turn the neighborhood san into a digital circle, using USDC as the unit. Kontigo described itself as a software company, not a bank. The distinction was more than legal housekeeping. The product was self-custodial, and the company said it connected existing pieces into a Spanish-language experience.
By the time Kontigo entered Y Combinator's Summer 2024 batch, its wardrobe had changed. The san became an opening chapter rather than the whole book. The company now pitched a USDC-focused account for Latinos in the United States and Latin America, with cross-border transfers, a Bitcoin savings feature and an AI assistant on WhatsApp. The problem had widened from organizing trusted groups to moving and preserving money across borders.
The evolution can look like a pivot parade if read only through feature lists. Underneath sits the same thesis. People in volatile economies do not need a lecture about digital assets; they need a stable unit, a path in and out, and an interface that speaks the language of rent, inventory and remittances. Castillo's preferred product test is his grandmother. The software should abstract enough of crypto's machinery that she can exchange money without becoming a student of chains, keys and protocols.
What builders can steal
The Castillo translation test
- Start with a financial behavior people already understand.
- Name the real job: save, pay, receive or exchange.
- Hide vocabulary that belongs to the infrastructure.
- Test with a relative, not an imaginary power user.
Growth meets the sharp edge
Kontigo's reported growth was fast enough to change the kind of company Castillo was running. He said the user count moved from fewer than 20,000 in January 2025 to 1.5 million by the end of that year, helped by demand among Venezuelans at home and across the diaspora. For migrants waiting to enter a new country's formal banking system, a virtual wallet could serve as a financial surfboard. For families split by borders, it could become a remittance route.
Scale also supplied a brutal correction. In January 2026, a security incident affected 1,059 accounts and more than $300,000. Castillo said Kontigo replenished balances within the first six hours, then spent two weeks on continuous calls with Supabase, Trail of Bits and a Venezuelan security specialist to understand and close the vulnerability. His description of the lesson was admirably unromantic: a financial company must become more paranoid.
The incident arrived amid public disputes over Kontigo's partnerships, sanctions exposure and operations in Venezuela. Castillo rejected allegations of political ties and said Kontigo had not been informed of any government investigation. A U.S. virtual-account product was suspended. In his telling, the company had learned that trust is not a halo awarded at launch. It is an operating system, tested hardest when the interface goes dark or a balance looks wrong.
That sentence is a quieter mission statement than his public talk of building a vast bank, ending poverty with AI and web3, or reaching ten million active users. It is also the one with the most gravity. The money in a fintech app is grocery money, school money, payroll money. A founder may see an architecture. A user sees Thursday.
A bridge with two addresses
Castillo's career now runs between Caracas and San Francisco, two cities with very different relationships to financial experimentation. Silicon Valley provides capital, accelerators and a taste for enormous claims. Venezuela provides the problem set: inflation, migration, informal exchange and a population expert at making a currency crisis slightly less impossible before breakfast.
Kontigo sits uneasily and interestingly between them. The company says its digital-dollar account can be used across more than 100 countries, while Castillo remains explicit about building for Venezuela for the long term. In April 2026, he said Kontigo had 1.6 million users and was working toward new external financial connections and a physical card with local banking partners. The announced destination was still ten million active users.
Numbers that large invite skepticism, as they should. Yet the more durable part of Castillo's story is smaller. A child watches adults keep a household going with a savings circle. Years later, the same person studies economics, sells an unusual spirit, lends to shopkeepers, experiments with AI payments, and puts a familiar piggy bank inside a global wallet. The chronology is untidy. The obsession is not.
Castillo keeps returning to the distance between people who want financial opportunity and systems that cannot see them. Kontigo is his current attempt to shorten it. Whether the company reaches its declared scale will depend less on its boldest slogan than on its quietest promise: when people bring their trust, the software must be worthy of holding it.