Senior
technologists.
Real work.

A two-founder consultancy where the principals do the building. AI products, platform modernization, cloud infrastructure, and fractional CTO engagements for companies where the stakes don't allow for guesswork.

Technology Consultancy  /  Est. 2013
Discuss your project See our process
40+
Years, combined experience
250K+
Users on apps we've built
15+
Countries delivered across
100%
Senior-led
Services

Five ways we help,
from startups to the Fortune 500.

Senior people only. No junior bench, no handoffs. You work directly with the people who've done this for decades.

01
Web & Mobile Apps, with AI built in
We design and build custom web and mobile apps, and add AI where it genuinely helps. Your product ends up feeling modern and doing more, without the buzzwords.
Web AppsMobileSmart AI FeaturesBuilt to Grow
02
Cloud Migration & Modernization
Aging systems slowing you down? We move you to the cloud and modernize what's under the hood, with no downtime and no disruption to your business.
Move to the CloudZero DowntimeSecure & CompliantSystem Upgrades
03
Fractional CTO & Tech Leadership
Senior technical leadership without the full-time hire. We guide your roadmap, steady your team, and help you make the big technology calls with confidence.
Fractional CTORoadmap PlanningTeam MentoringVendor Selection
04
Board & Executive Advisory
Board-level guidance for founders and investors, from technology due diligence to strategy that holds up in the room where the real decisions get made.
Board AdvisoryDue DiligenceProduct StrategyM&A Support
05
Fast, Modern Websites
Lightning-fast, rock-solid websites that you can update yourself. You get enterprise-grade performance and security, without the enterprise price tag or the plugin headaches.
Blazing FastEasy to EditStrong SecurityBuilt to Scale
See a live example → preachit.org
Values

What drives us
every day.

These aren't words on a poster. They're how we actually work: on every project, every conversation, every day.

Listen first, build smart
We start with your problem, not a playbook. The better we understand what you're actually up against, the better what we build fits.
Trust, earned by delivering
We build trust the only way that counts: promises kept, deadlines met, work shipped. One project at a time.
Fast, without cutting corners
Quick doesn't have to mean fragile. We move fast and build things right, so what works today still works a year from now.
We grow together
Every project leaves your team stronger and ours sharper. We work alongside your people, not behind a curtain.
Approach

Eight phases,
one clear timeline.

~24 WEEKS · SCOPED TO YOUR PROJECT

It's a proven, certified process, refined over hundreds of projects, so you always know what's happening now and what comes next. No phase starts until the last one's signed off.

phase
W0W4W8W12W16W20W24
Get to know you
01 · 2–3 weeks
W0–2
Map it out
02 · 1–2 weeks
W2–4
Design & prototype
03 · 2–3 weeks
W4–7
Build it
04 · 6–10 weeks
W7–17 · Delivery
Test everything
05 · 2–3 weeks
W17–20
Put it in your hands
06 · 1–2 weeks
W20–22
Launch
07 · about 1 week
W22–23
Stick around
08 · ongoing
Ongoing
Team

Who you'll actually
work with.

No account managers, no junior bench. ADG is the two of us, and we're the ones who do the work. Between us, two decades of building and leading on projects where the stakes were real.

Sean, CEO and co-founder
Sean
CEO & CO-FOUNDER · WEB & MOBILE
Sean leads company strategy and the web and mobile side of the work. He's spent two decades building apps people actually use, and he still builds them himself.
  • Built and shipped sports & gaming apps used by 250,000+ people across 15+ countries.
  • Hands-on from front-end to cloud. He writes and ships, not just plans.
  • Builds fast, responsive sites and apps that work on any device, with live features that update the moment something changes.
  • Sets up the cloud behind the scenes (AWS, Azure) so apps deploy smoothly, scale when traffic spikes, and stay online.
Madan, CTO and co-founder
Madan
CTO & CO-FOUNDER · ARCHITECTURE & INTEGRATION
Madan leads the technical side: how everything is designed, built, and connected. He's led big teams through high-stakes projects, and still writes code.
  • Built a development platform from scratch, leading a global team of 150+ engineers.
  • Guided companies through 9 mergers and a successful private-equity exit (2024).
  • Deep in enterprise security & compliance: SOC 2 Type II and ISO 27001.
Certified Product Manager & Marketer · verify on Credly →
Tech stack

The tools we build with.

Modern, proven technology: the same tools the world's biggest platforms run on. We go deep on each one.

AWSMicrosoft AzureGoogle CloudDigital OceanClaudeOpenAI GPTGoogle GeminiTensorFlow AWSMicrosoft AzureGoogle CloudDigital OceanClaudeOpenAI GPTGoogle GeminiTensorFlow
DockerKubernetesJenkinsGitLab CI/CDAngularNode.jsPython.NET DockerKubernetesJenkinsGitLab CI/CDAngularNode.jsPython.NET
MySQLSQL ServerOraclePostgreSQLMongoDBSnowflakeAWSClaude MySQLSQL ServerOraclePostgreSQLMongoDBSnowflakeAWSClaude
Contact

Let's talk.

Tell us what you're working on. We'll set up a free 30-minute call to talk through quick wins, risks, and where to start.

Or reach us directly.

Email
support@appdesigngeeks.com
LinkedIn
linkedin.com/company/app-design-geeks
Location
South Carolina, USA
Where we work
North America & Europe, remote-first