Splitcheck
A bill-splitting tool I built and use, now used across the Columbia Business School community to settle dinners and trips fairly.
FOUNDER TURNED PRODUCT MANAGER, COLUMBIA MBA '26, KRAVIS SCHOLAR
Juliana is a founder turned product manager with 9+ years taking products from zero to one. As Founder and Product Lead of Street Entrepreneurs, a nonprofit accelerator that raised $1.25M for 2,000 entrepreneurs across six countries, she led four spinoff products, including an investment platform behind a 2018 U.S. provisional patent application. She co-led BEACON, a network of 3,000 women founders, and earned a Master's in Digital Product Management (Universitat de Barcelona, Summa Cum Laude) and an MBA at Columbia, where she is a Kravis Scholar and Consortium Fellow. Today she turns problems into written PRDs and shipped products.
9+
Years founding and operating
~2,000
Entrepreneurs served
45+
PRDs written
40+
Prototypes shipped with AI
Start here
If you only have a moment, these show how I work, from research to a shipped product.
A bill-splitting tool I built and use, now used across the Columbia Business School community to settle dinners and trips fairly.
Venture-backed marketplace built during COVID-19 that lifted shop sales 25%.
Columbia PM Lab capstone with Spotify: a creator tool for independent artists.
Skill-exchange time bank tested in 128 beta sessions across DC, MD and VA.
Investment platform behind a 2018 U.S. provisional patent application, with a beta and A/B tests I led.
Recommendations
“My business has turned around! My sales have gone up and my business is heading in the right direction!”
Dr. Floryn Ajuzie
Small business owner, Street Entrepreneurs client
“Juliana's ability to juggle multiple projects is unlike any I've seen before and makes a dramatic difference in the productivity of our team.”
Jezen Burton
OTC Product Lead at Damex.io, reported to Juliana
“Chief among them are her trustworthiness and ability to communicate complex ideas succinctly in a manner that anyone can understand.”
Cesar Camacho
Senior Event Technology Manager, PBS
“When I asked her to research, evaluate and brainstorm on the market position of Manchester Trade, she came up with some insightful findings. After her findings, she worked with other colleagues to craft a new strategy for the firm.”
Paa-Kwesi Heto, PhD
Managed Juliana directly
Formal training. Real products.
Columbia PM Lab capstone · With Spotify
A creator tool built with Spotify letting independent artists record personalized shoutouts for fans.
Barcelona MA capstone · Summa Cum Laude
A marketplace turning quiet neighborhood spaces into bookable work nooks.
Columbia brand partnership
A go-to-market strategy placing a sustainable resort-wear label into luxury wellness resorts.
Columbia Business School vibe coding class project
Built for my Columbia Business School vibe coding class: one board for every non-traditional MBA job, posted by clubs, students and Career Management, with a personal pipeline to track each role.
Founder and CEO · Visible Hands VC · 2020 to present
Moved brick-and-mortar businesses online during COVID-19. I ran UX research, built Figma prototypes, and wrote the PRD. Lifted sales 25%.
Founder and CEO · 2017 to 2018
Digitized the accelerator's skill exchange into a time-bank web app with our CTO. 128 beta tests over 2.5 months across DC, MD, and VA, turned into a V2 roadmap.
A dealflow OS to find and buy small companies.
Fund-of-funds platform, U.S. provisional patent application (2018)
A fund-of-funds platform that tracked investor performance and gamified investor education. I led the beta, PRDs, and A/B tests.
Spotify Shoutouts (2026): a creator tool built with Spotify as my Columbia PM Lab capstone, letting independent artists record short personalized shoutouts for fans.
Gruns Digital Twins (2026): a Columbia marketing case competition concept that builds digital twins of customers to personalize supplement routines and predict reorders.
WorkNook (2023): a neighborhood coworking marketplace, my Summa Cum Laude MA capstone at Universitat de Barcelona, with a 55 slide investor deck.
Street Collectiv (2020): a values based e-commerce marketplace built and launched during COVID that drove a 25 percent sales increase for participating shops, backed by Visible Hands VC.
Street Pitch (2019): the first live equity crowdfunding event of its kind, scaled from a 500 person in-person event to roughly 1 million viewers through simulcast.
Street Investors Exchange (2018): an investment platform behind a 2018 U.S. provisional patent application that gamified investing and gave emerging investors micro funds to back local startups.
Founder and Product Lead · 2015 to 2024
A social impact accelerator building equitable communities through access to knowledge, connections, and capital. Grew 60x in four years, with 16 cohorts of 125+ entrepreneurs, 400+ mentors, and 200+ workshops. Raised 1M dollars plus in seed and scaled to 1.25M dollars across six countries.
Co-President · 2020 to 2024
Co-led a community of 3,000 women founders. Helped win unanimous DC Council passage of the Street Vendor Advancement Amendment Act (2023).
The latest work
A shared Pomodoro room for two cofounders: one timer, one rhythm, and a focus block only starts when you both press start.
Name any neighborhood and an AI guide plans a walking tour, writes each stop, and narrates it automatically as you arrive.
Build a precise AI prompt by walking through ten structural elements, then copy it into any AI tool.
Forty heart-healthy, iron-rich recipes for two, shopping list first, then one recipe at a time, bilingual English and Spanish.
Helps you name and navigate your emotions, an atlas of 88 feelings, with a guided emotion sorter and weekly reflection summaries.
Reads a photo or PDF of your lab work, flags out-of-range values in plain language, and suggests foods and questions for your next appointment.
Apps and concepts
A friction layer that replaces a distracting app and restricts the feed and Reels while keeping messaging and posting open.
A cycle and fertility companion with phase-aware nutrients.
A 20-day reset that teaches you to meditate on your own.
AI journaling that helps you name and navigate emotions.
Track key life areas and reflect on each, noticing what needs attention.
A focused sleep app for a calm, distraction-free wind-down.
Consent-based check-ins triggered by warning signs for loneliness and depression.
A compatibility-first dating app that replaces endless swiping with one real fifteen-minute conversation.
A dating protocol with no small talk: an AI interview writes your profile, and every match is one 15-minute video call.
A dating app that matches people on how they actually behave, not what they claim in a bio.
Follow-up drafting in three voices.
Made-to-order swimwear.
Custom suiting with a color harmony assistant.
Leather goods made in small batches.
Splits a shared bill by what each person actually ordered, then hands off to a payment app. Built by me and used by members of the Columbia Business School community.
Standby flight deals.
The second build of the neighborhood values marketplace.
A habit tracker that turns an overwhelming job search into three timed daily sessions, so seekers stay consistent through a long search.
An AI tool that turns a job posting and a resume into a tailored, ready-to-send cover letter in minutes.
A private dating counsel that reads a conversation and gives an honest read on intent and safety. Nothing stored.
A painless menstrual-cup applicator that lowers the biggest barrier to switching to a reusable cup.
Discreet safety jewelry with hidden GPS for sharing location and sending silent alerts.
A social-listening dating concept that infers compatibility from how people engage and express themselves.
V1 concept · V2 build
Period care, timed to your cycle. A subscription box that ships pads, monthly chocolates, and weekly self care right before your period arrives. Landing page and waitlist built.
A foot-pedal, touch-free toilet seat that lifts and lowers hands-free.
A dehumidifying closet that protects garments from moisture, mold, and odor.
Smaller builds where I test an idea fast.
A daily affirmation to start the day grounded.
A morning routine that turns the first hour into a repeatable ritual.
Turns how your skin feels into personalized DIY skincare recipes from pantry ingredients.
Foods, adaptogens, and nutrients matched to how you feel or an illness you are navigating, in English and Spanish.
A yoga pose and an affirmation matched to your mood, with a Tai Chi mode.
A Spanish-language companion that suggests three Tai Chi postures and an affirmation.
A daily-scanned tracker of free and intro-offer yoga classes on the Upper West Side, with notifications.
All NYC events from Eventbrite, Time Out, Meetup and Partiful in one place, filtered by date, borough, category and price.
Share what is on your mind and get five contrasting perspectives from Stoicism, Buddhism, Existentialism, Taoism and Aristotelian ethics. Not advice, a way to think.
A second version of Wisdom Lens that answers with a circle of the world's wisdom traditions, from Stoic and Buddhist to Ubuntu and Indigenous.
An interactive pitch deck for blockchain-backed tokens that sponsor real rainforest plots and fund conservation.
Experience
2020 to present
Founder and CEO
2015 to 2024
Founder and Product Lead
Scaled 60x in 4 years across 6 countries; 2,000 entrepreneurs, 16 cohorts, 400+ mentors; 42% revenue and 38% job growth; won a $175K DC Innovation Accelerator Grant, the largest to an accelerator in DC history. Merged with Washington Area Community Investment Fund in 2025.
Product Lead
Pioneered live equity crowdfunding with the first Facebook Simulcast at this scale: 500 in-person attendees, about 1M concurrent viewers, 100 pages broadcasting at once.
2020 to 2024
Co-President
Aligned the Bowser Administration, Google, and Georgetown Law on grant criteria that allocated $100K to 30 founders. Helped win unanimous DC Council passage of the Street Vendor Advancement Amendment Act (2023).
2021
Fellow (selected from 900 applicants)
2019 to present
Advisor
2019
Lecturer
2017 to 2018
Founder and CEO
2017
Lecturer
2018 to 2020
Advisor
2018
Fellow (selected from 2,400 applicants)
2017 to 2019
Innovation Strategist
2018 to 2019
Co-Founder and COO
2015 to 2017
Strategy Consultant (promoted from Program Assistant within 6 months)
Ran the first World Bank and Uganda Agri-Hackathon guiding a $500M investment; secured $5M for about 10,000 farmers in Belize.
Skills / Expertise
Product strategy, agile, UI/UX, Figma, Jira, Confluence, Miro
SQL, Python, data analysis, A/B testing, Salesforce CRM
Claude Cowork, Claude Code, ChatGPT, Lovable (40+ prototypes)
Customer discovery, UX research, Figma prototyping
Strategic planning, go-to-market, fundraising, stakeholder management, public speaking
Facebook Ads, Google Ads, community building, content strategy, brand development
English, Spanish, Portuguese (fluent)
Recognition
How I work
Framing, prioritization, metrics, roadmaps.
Positioning, messaging, launch, the pitch.
A decade running a multi-country organization.
I direct AI to ship, from idea to live URL, solo.
I founded Street Entrepreneurs in 2015 on the belief that the people closest to a problem hold the insights to solve it. That belief still shapes how I build.
Then I got the formal training: a Master's in Digital Product Management at Universitat de Barcelona, Summa Cum Laude, GPA 4.0, and an MBA at Columbia, where I am a Kravis Scholar and Consortium Fellow. Before that, a BA in Political Science from Florida Southern College, Summa Cum Laude and Commencement Speaker.
I do not want to only write the document. I want to ship the thing.