02 Service

Mobile & Web Development

From marketing sites to full products: bookings, payments, CRMs and apps people install.

Start a project See work

Sites → apps → CRMs

Range

US · CA · UK · MX

Markets

Analytics

Built in

Overview

From a first landing page to a full digital product, I design and build what your business needs on the web and on mobile — websites, stores, web apps, platforms and the integrations that connect them. Every build ships fast, accessible and measured from day one, and I've led the web teams that deliver them.

What's included

Deliverables

Websites, CMS & ecommerce

Fast sites and stores your team updates without a developer.

Web apps & PWAs

Installable apps with bookings, payments and realtime data.

Custom platforms

CRMs, catalogs and internal tools built around your process.

Landing / MVP

A focused first version, shipped fast and measured.

How it works

A clear, simple process

Discovery

Goals, scope, audience and the shape of the build.

Design

Structure, UX and a look that fits your brand.

Build

Fast, accessible, well-structured front-end and integrations.

Launch & measure

Ship, wire analytics, and iterate.

Tools & stack

Next.js
React
Astro
Webflow
Firebase
Postgres
Stripe
HubSpot

Client cases

Selected work

All projects ↗

ROD Cycling

Progressive web app

An installable web app for an indoor cycling studio: bookings, payments and class access.

ROD Cycling
Next.js
React

Lead Monat · CRM

Lead CRM & product catalog

A CRM for an independent Monat partner: leads arrive through a hair-diagnosis test, stay centralized, and get followed up with the right products.

Independent Monat Market Partner
Next.js
React

42 Agency

B2B SaaS websites

Led the web team of a B2B SaaS growth agency: high-performance sites and landing pages for clients in the UK, US and Canada.

42 Agency — eSub, Charma, Afresh, Evolve, Gander, Coachbar…
Webflow
HubSpot

Cometa

Educational 3D game

A little world to learn, play and discover — a 3D game for ages 3–5, built so a child's first screen is one designed for them.

TypeScript
React Three Fiber
Three.js

Pepsi Center WTC & Sala Pepsi Black

Venue websites

Websites for two Mexico City venues where fans find the next show and buy tickets in a couple of taps.

Pepsi Center WTC
Webflow
GA4

What people say

Heber is a thoughtful, smart & talented web developer. He was instrumental in building the web team at 42. He not only has extensive knowledge of web technologies & platforms, he also understands the broader business context of the work he does & how he can go beyond his role to create a larger impact. Heber often comes with creative solutions to problems & takes ownership of implementing them. He helped mentor the team & worked closely with our design team to bring their incredible designs to life on the web. I am incredibly lucky to have worked with Heber & I would highly recommend him.

KR Kamil Rextin Founder, 42 Agency

As Lead Developer, Heber consistently impressed the team with his technical expertise, creativity, speed, and dedication to delivering high-quality work. He was always willing to go above and beyond to troubleshoot issues and find solutions that worked for everyone. He has a strong understanding of not only development, but also marketing, and how those two interplay with each other. During his time at 42 Agency, Heber also took on an important mentorship role for a junior developer which supported him in his professional growth and contributed greatly to the company as a whole.

MD Mallory Donaldson Project Manager, 42 Agency

Heber is a proactive developer with strong marketing knowledge, excelling in HubSpot landing pages, email marketing, and Webflow development. A remarkable self-learner and team teacher, he consistently enhances our work by suggesting innovative strategies and analytical approaches for assessing landing page performance. Heber's collaborative and supportive nature makes him an invaluable asset to any team, contributing significantly to 42 Agency's productivity and project quality.

AC Alejandra Céspedes Creative Director, 42 Agency

Heber is truly a standout as a developer. He combines technical know-how with a creative touch, ensuring projects are both visually appealing and perfectly functional. What really sets Heber apart is his ability to solve problems, permanently learn and teach others how to overcome blockers, and collaborate efficiently. He respects the vision of both designers and developers, and does his best to bring form and function to life. Any business would be lucky to have him.

SC Sebastian Cuervo Copy & Content, 42 Agency