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Product engineering, end to end
From the first sketch to the production deploy: scope, design, build, ship. You stay in control at every step.
DiscoveryArchitectureDelivery
6+ years building products
THEOAUGUST
Web & Mobile Developer
Product engineering · AI features
Why work with me
Six years building apps, from side projects to platforms used by 8M+ people.
Mobile, web, AI features. The same level of care for two users or two million.
6+
Years building production code
10+
Founders & teams shipped with
8M+
Users across apps I've shipped
48h
Average reply, even on Sundays
How I work
What every project gets, whether startup, side project or scale-up.
Mobile apps
Cross-platform apps built with Flutter. One codebase, iOS and Android, fluid UI.
Web platforms
Next.js, Node, Symfony when it fits, architected to scale with the product.
Product thinking
Six years across side projects and apps at scale. Honest input to support clearer product decisions.
Stack
The tools I use every day
Filter by category. Click or hover any card to see how I use it.
Services
What I do, end to end
Six capabilities, applied with care to your product.
01
Web platforms
Next.js apps, SaaS dashboards, marketing sites. Deployed on Vercel, instrumented with PostHog, transactional emails via Resend.
Next.jsVercelPostHogResend
02
Cross-platform mobile apps
Flutter for iOS and Android from a single codebase. Clean delivery to the App Store and Play Store.
FlutteriOSAndroidFirebase
03
AI features with measurable impact
LLM integration, agents, retrieval, evals. Focused on what moves a real metric.
AnthropicOpenAIAI SDKEvals
04
Analytics & performance
Core Web Vitals, product analytics, funnel debugging, observability. Find the leaks, fix them.
PostHogSentryLighthouseGitHub Actions
05
Tech advisory
Stack decisions, architecture reviews, founding-engineer support. Honest input, including when not to build.
ArchitectureHiringCode review
Don't see your exact need? Most projects span two or three of these.
Let's talk →
AI Native
Working with AI, every day.
AI is part of the daily workflow. Pairing with Claude through Claude Code speeds up delivery and strengthens code review.
Quicker iterations
Spec → prototype → review → ship in days. Clear iteration loops, frequent check-ins.
Extra pair of eyes
AI-assisted refactors and reviews catch what a manual pass might miss.
Read by a human
Every line that ships is reviewed and validated by hand.
claude · opus 4.7
you
Built with
Anthropic
Model lab
Claude Opus 4.7
Reasoning model
Claude Code
Agentic CLI
Work
Client projects, side projects, community.
Client projects: production-grade delivery. Side projects: testing new ideas. Talks: staying close to the ecosystem.
Live
For myself
Countz.io
Shareable countdown counters for launches, weddings, deadlines.
Next.jsSupabaseVercelTypeScript
Shipped
For myself
Pixell
Pay-per-access link generator for creators: pixelated previews, secure payouts.
SymfonyFlutterStripeAWS S3
Testimonials
What they say
I highly recommend Theo for his work and his kindness!
Léo Satgé
CEO, Golden Cup
Theo is always so responsive, with top-notch communication: an urgent development delivered and shipped to production in 48 hours!
Alexis Palmier
CEO, White Heart
Working with Theo was a very rewarding experience, his motivation and creativity are contagious!
Timé Sadiku
Head of HR, Maplr Consulting Inc.
Contact
First chat within the week.
The simplest first step: a virtual coffee. Free, 30 minutes, no commitment, to see if there's a good fit.
Available · 48h replyVirtual coffee
Free30 minutesAnywhere in the world
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