Craft and code.
Built here.For everywhere.
Technology that moves your business forward.
A boutique technology and growth partner — senior by default.
We bring to life high-quality products loved by users.
View our servicesEvery organization is unique, with specific needs, goals and challenges. We work closely with you to build technology tailored to how your business actually runs — a new product from scratch, an existing system made better, or the marketing that fills the pipeline. Southern California roots. Clients nationwide.
50+
Projects shipped
$10M+
Client ARR helped generate
Senior
By default. Never juniors learning on your budget.
What clients actually say. Read client reviews
Client voice
What clients actually say.
“Easily one of the best people you will find on Upwork… he was able to provide invaluable insights on current and future projects.”
Jon has been a pleasure to work with… Thanks for helping us again! Look forward to working together again soon.
Brandon OxendineFounder, Ecommerce Consultant at BOx DigitalJonathan has demonstrated outstanding project management skills, seamlessly balancing strategic planning with day-to-day execution. His expertise in ClickUp integration has been a game-changer for our team, optimizing workflows and ensuring that every task is accounted for and progressing efficiently. Jonathan's ability to anticipate project needs, proactively address challenges, and communicate effectively with the team has created a smooth and collaborative work environment. His attention to detail and strong…
Nichole McKinneyCEO at BICSWorking with Jon as our project manager was an absolute pleasure. From start to finish, he demonstrated outstanding professionalism, communication, and organization. He truly went above and beyond to ensure that everything ran smoothly, meeting deadlines and keeping the team on track. Jon's ability to manage multiple tasks and stakeholders with ease made a significant impact on the success of the project. He was proactive in addressing any challenges that arose and provided valuable solutions every step of the…
Eric SantiagoDigital Marketing Director at Purity ProductsJonathan is easily one of the best people you will find on Upwork, and that's probably an understatement. He was able to provide invaluable insights on current and future projects, and we are looking forward to working with him in the future.
Milan OdufuyeCEO at Pivotal Workout Corp.Excellent work. Very personable, focussed, bright. Would I rehire? I already did! Bill
Bill KilpatrickCEO at DriveWhat we do
Three services.
One senior team.
Industry-agnostic, service-specific. Every engagement is led by people who have done it before.
01 — build
Websites, e-commerce and custom software.
Headless sites, Shopify and marketplace engineering, MVPs and cloud platforms — built to be maintained, not rebuilt.
- Website
- From $7,500
- E-commerce
- From $10,000
- Custom software / MVP
- From $25,000
02 — automate
AI, workflows and the numbers.
AI pilots that earn their keep, document and CRM automation, and dashboards your team actually checks on Monday.
- Technology audit
- From $750
- AI pilot
- From $5,000
- Dashboard
- From $3,500
03 — grow
Marketing, ads and leadership on retainer.
Growth marketing, paid search, marketplace SEO — plus fractional product and CTO leadership when you need a senior hand on the wheel.
- Growth retainer
- From $2,500/mo
- Ads management
- From $1,500/mo
- Fractional CTO
- From $6,000/mo
The expertise
Beyond expectations,
within reach.
Who we are
Big-firm skill.
Small-shop care.
NinjaDev is led by founder Jon Gryn, who owns strategy and every client relationship. Delivery runs through a senior network of engineers, designers and marketers — people who have shipped for enterprise teams and now bring that craft to businesses that can't afford to get it wrong.
- No juniors
- Senior people on every engagement.
- One point of contact
- You talk to the person accountable.
- Built to last
- Maintainable, documented, yours.
Jon Gryn
Founder · Strategy & client lead
Selected work
Proof, not promises.
Client reviews
Don't take our word for it.
Brandon OxendineFounder, Ecommerce Consultant at BOx Digital
Jon has been a pleasure to work with… Thanks for helping us again!
Jon has been a pleasure to work with… Thanks for helping us again! Look forward to working together again soon.
Industries we work with
Senior expertise. Personal attention. Technology that delivers.
Insights
Thinking out loud.
Build
How much does a small business website cost in 2026?
A plain-language breakdown of what small business websites cost in 2026, what drives the price, and how to budget — from a senior team in Southern California.
ReadAutomate
What is workflow automation, and where should a small business start?
What AI and workflow automation actually mean for a small business, how to pick the first process to automate, and what a fixed-scope pilot looks like.
ReadGrow
How do AI assistants decide which local businesses to recommend?
What makes a local business easier for ChatGPT, Gemini and other AI assistants to find and recommend — and the practical steps you control.
ReadClients
Trusted by
PolarProAre you ready?
Book a free consultation with us.
A 30-minute call. No pitch deck. You'll leave with a clear next step whether or not it's with us.