Weverson Mamédio

Product Engineer

Weverson Mamédio

Product Engineer · Full-Stack · MVP Builder for Founders
· I use AI to ship faster — not to skip the thinking.

React Next.js TypeScript Python AI / LLMs SaaS & Fintech API Integrations

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0+ years experience

$0M+ revenue generated

0+ apps shipped

"Weverson took the time to understand my business,
and then delivered everything we asked on time."

— Ben Brennan, QSTAC

Selected Work

FINTECH INVESTORS DASHBOARD

Built a high-performance investor portal from scratch — implemented SPA architecture that cut page load from 3s+ to under 1s. Designed to attract new investors and drive follow-on investments.

FINANCIAL PLANNING & CASH FLOW

Redesigned and built the core dashboards for a financial SaaS — cash flow forecasting, goal tracking, and data visualization. Optimized performance by 60% and improved the UI/UX to drive retention.

NOMAD CITY GUIDE

Proposed and built a live map search that changed how users explored cities — it became the platform's signature feature. Also improved filters, responsive design, and integrated AirTable, weather, and image APIs.

CURLY HAIR DIRECTORY & PHOTO AI

Suggested and built an AI haircut visualizer that became the platform's most-used feature. Also added Stripe subscriptions, improved SEO, and converted the full site to a responsive engine.

JESSIE THERAPIST [AI]

Built an AI therapy chat platform with SEO-optimized blog content. Focused on performance, accessibility, and a calm UX that builds user trust from the first interaction.

PICKLEBALL CLUB MANAGER

Architected the database and built the full feature set — ELO-based player rankings, game scores, and events management. Pixel-perfect implementation from a Figma design.

FIGURINE MARKETPLACE

Took a bare template and built it into a full-featured marketplace — product options, shipping, in-chat image uploads, payment verification, and reviews. No plugins, built from scratch.

CRYPTOCURRENCY PLATFORM

Built a live crypto trading platform — integrated Binance API for real-time data, SMS-based auth flow, and designed and implemented the full UI from scratch.

SALON SCHEDULING APP

Built a full salon scheduling platform from scratch — native Stripe subscriptions (no plugins), booking system, and improved UX beyond the original brief. Delivered ahead of schedule.

Let's Work Together

What Clients Are Saying

10/10, by far the most enjoyable experience I've had with a freelancer. Weverson took the time to understand my business and what the high level, big picture was, and then delivered everything we asked on time. Most importantly, he is a delight to work with. Very happy we hired Weverson.

BEN BRENNAN

QSTAC

What sets him apart is how he seamlessly combines UI and UX considerations with robust functionality. Honest, dependable, detail-oriented, communicative, and highly experienced. For business owners and entrepreneurs looking for a developer who truly understands both the technical and user experience sides of app development, I can't recommend Weverson highly enough.

GEORGE C. HUANG

Profit Stash

I have worked with Weverson for the last 2 years on my business, Curlysister.com. He has been responsive and helpful. I will continue to work with him every chance I can. He is a solid developer and problem solver.

PHOEBE ASH

CurlySister

One of the best people I've worked with. He's responsive, creative, works autonomously, and is easy to talk to. He significantly improved the app I was building with his own ideas for speed and design. Would highly recommend.

BENJI EISENBERG

Harmonic Intelligence

We hired him as a Bubble developer and quickly learned he had skills far beyond that. He owned the entire process and his frontend skills range far beyond the Bubble world. 5 stars, A++++++

JEFF M.

Investors Dashboard

10/10, by far the most enjoyable experience I've had with a freelancer. Weverson took the time to understand my business and what the high level, big picture was, and then delivered everything we asked on time. Most importantly, he is a delight to work with. Very happy we hired Weverson.

BEN BRENNAN

QSTAC

What sets him apart is how he seamlessly combines UI and UX considerations with robust functionality. Honest, dependable, detail-oriented, communicative, and highly experienced. For business owners and entrepreneurs looking for a developer who truly understands both the technical and user experience sides of app development, I can't recommend Weverson highly enough.

GEORGE C. HUANG

Profit Stash

I have worked with Weverson for the last 2 years on my business, Curlysister.com. He has been responsive and helpful. I will continue to work with him every chance I can. He is a solid developer and problem solver.

PHOEBE ASH

CurlySister

One of the best people I've worked with. He's responsive, creative, works autonomously, and is easy to talk to. He significantly improved the app I was building with his own ideas for speed and design. Would highly recommend.

BENJI EISENBERG

Harmonic Intelligence

We hired him as a Bubble developer and quickly learned he had skills far beyond that. He owned the entire process and his frontend skills range far beyond the Bubble world. 5 stars, A++++++

JEFF M.

Investors Dashboard

Weverson is an incredibly gifted developer. In addition, he has excellent communication skills. I think what sets him apart are his world class UI/UX skills. Highly enjoyed working with Weverson and hope to work again with him in the future!

JEFF G.

Cleeri

The communication is so fluid and pleasant, his ideas are worth their weight in gold, his speed of execution is perfect, the fact that he is involved and creates a real bond with the project.

JEFF P.

Brush'n'Shade

Quickly understood our requirements and expertly delivered on them ahead of schedule.

LOUIS

TruNarrative

Very talented developer who communicates well, is reliable, and thinks entrepreneurially which means he'll present ideas and offer suggestions on how to improve existing ideas.

CAMERON W.

WeNomad

Absolute pleasure to work with. Very clear and knowledgeable and completed the job to perfection!

GREG

Client

Weverson is an incredibly gifted developer. In addition, he has excellent communication skills. I think what sets him apart are his world class UI/UX skills. Highly enjoyed working with Weverson and hope to work again with him in the future!

JEFF G.

Cleeri

The communication is so fluid and pleasant, his ideas are worth their weight in gold, his speed of execution is perfect, the fact that he is involved and creates a real bond with the project.

JEFF P.

Brush'n'Shade

Quickly understood our requirements and expertly delivered on them ahead of schedule.

LOUIS

TruNarrative

Very talented developer who communicates well, is reliable, and thinks entrepreneurially which means he'll present ideas and offer suggestions on how to improve existing ideas.

CAMERON W.

WeNomad

Absolute pleasure to work with. Very clear and knowledgeable and completed the job to perfection!

GREG

Client

About

Product engineer. Design background. Founder instincts.

I use AI to ship faster — not to skip the thinking. My job isn't just to ship features — it's to make sure we're building the right thing, in the right way, for the right reasons.

My background is in graphic design — which shapes how I work. I think about systems, visual hierarchy, and how things feel to use, not just how they're built. I bring ideas throughout a project, stay close to user feedback, and sometimes the best contribution is simplifying what's already on the roadmap.

I founded and ran a shoe e-commerce business that scaled to $5M+ in revenue — which means I've sat on both sides of the table. I know what it's like to make product decisions with limited runway and high stakes.

I've spent the last seven years building SaaS and fintech products with founders and teams. Over the last two years I've moved to fully AI-native development with React, Next.js, and Python — same focus on clean architecture and code that lasts, just shipping a lot faster.

Based in Madrid, Spain — good overlap with US time zones. Open to retainers, projects, and full-time roles.

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Have something to build? Let's see if we're a good fit.