Software engineer on subscription
For gyms, studios, clinics, shops and local businesses
RyanDiMascio.
A software engineer on subscription. Fixed and improved every week, for one flat monthly price.
Your website, store, booking and the tools behind them. Most small requests come back in two business days.
Pause or cancel anytime · 75% back in the first week
01Stanford
Free videos, podcasts and articles on entrepreneurship from the Stanford Technology Ventures Program.
Higher education
02Blackstone
The corporate site of an alternative asset manager, for investors, shareholders and financial advisors.
Financial services
03Holt International
Child sponsorship, adoption and giving for a Christian organization that supports vulnerable children and families.
Nonprofit
04SERHANT.
Home search for a real estate brokerage, with homes for sale and rent across many US regions.
Real estate
Full case studies are shared on request. Ask for the one you want.
Request a case studyHow it works
Subscribe. Request. Receive.
- 01
Subscribe
Pick a plan. You get a private request board to add work to.
- 02
Request
Add what's slowing you down: a fix, a page, an integration, an AI tool.
- 03
Receive
Most small requests come back in two business days, and we revise until it's right.
- Fix the broken booking link on the homepageDone2 days
- New summer camp page staff can editIn reviewToday
- Send new members to the email list automaticallyIn progressStarted Tue
- AI assistant for common parent questionsQueuedNext up
What a request looks like
What a request looks like, with time ranges.
- Fix a broken checkout or booking link1 to 3 business days
- A new page your staff can editAbout 2 business days
- Connect two tools so data stops being typed twice1 to 2 weeks
- An AI assistant that answers common customer questionsAbout 2 weeks
- A new Shopify store with your products loaded4 to 6 weeks
Membership
What a small tech team gives you, without hiring one.
Private request board
Every request, decision and status in one place. No chasing.
Fixed monthly price
No hourly billing, no surprise invoices.
Reply within one business day
Every request gets an answer by the next business day.
Pause anytime
Quiet month? Pause, and keep the days you haven't used.
You own everything
It all runs in your accounts, so you're never locked in.
Work directly with me
No account managers and no handoffs. I build and test every change.
What I build
Practical software for businesses without a tech team.
Web and commerce
- Marketing sites
- Shopify stores
- Pages your staff can edit
- Speed and search basics
Systems
- Booking and payments
- Integrations between tools
- Moving off old software
- Reports you can trust
AI and internal tools
- Dashboards and admin tools
- AI assistants and automations
- Workflows that remove busywork
- Monitoring and alerts
Every builds an all-in-one finance and HR back office for startup founders.
Luxury Presence makes websites, a CRM and marketing tools for residential real estate agents, teams and brokerages. I joined as a UI tech lead and grew into platform and developer experience work.
Senior Software Engineer II, Developer Experience
- Built CLI tooling for 80 engineers to run the microservices locally with Docker, Node.js and process-compose. Setup went from hours to minutes.
- Shipped AI-assisted engineering workflows with git worktrees and PR stacking, for faster delivery and code review.
- Released ephemeral environments, so each feature is tested in isolation with no staging conflicts.
- Built an internal plugin system so teams adopt the same tooling.
Senior Software Engineer, Fullstack
- Built and scaled a multi-tenant Next.js platform that serves 30K+ websites, for clients such as Ryan Serhant, Josh Flagg and the Umansky Team.
- Designed horizontally scalable infrastructure on Docker, Kubernetes and Argo CD, serving 10M+ requests/day.
- Cut p95 latency on property pages by 87%, from 2.3s to 300ms.
- Cut the incident rate by 60% with health checks, graceful shutdowns and monitoring.
- Added Playwright tests and Artillery load tests to CI/CD.
Software Engineer, Frontend
- Led the move from a legacy Ruby on Rails app to Next.js and TypeScript: 300k users across 10k sites, with zero downtime.
- Designed a monorepo of independently deployed microservices, and contributed to the GraphQL API gateway behind the web and React Native apps.
- Built the UI component library and design system with TypeScript, React, Radix, Vite and Storybook.
Senior UI Engineer, Tech Lead
- Delivered a production-ready website template for the Ryan Serhant partnership within 30 days.
- Made template development 20% faster with a token-based design system.
- Built tooling for the creative team: a Git-to-Postgres sync, a Vite and React preview app, and a deployment CLI.
Experiments · built solo
Hackweek demoNatural language home search
Type a home search the way you would say it. The search turns it into real listing filters.
- Queries like "miami oceanfront under …" or "3 beds rental in palm springs with a pool"
- Fills in place, listing type, beds and property type, then shows matches on the map
- Built solo on a real estate listing site
Hackathon demoAI-assisted local development app
A desktop app that sets up a workspace of repositories, runs the services, and turns a plain request into a reviewed code change.
- Create a workspace from several repositories and start each service in one click
- Ask for a change, such as "Improve the webpack build time"
- Read the research and the plan, approve it, then review the issues it finds before a pull request
- Built solo
10up crafts websites and tools for content creators, with deep WordPress work.
- Led frontend development and served as tech lead for enterprise clients, including Blackstone, Stanford and Holt International.
- Ran the technical project work: sprint planning, requirements, estimates and coordination across teams.
- Championed JavaScript best practices and WCAG 2.1 AA accessibility across the engineering team.
- Contributed to company open source packages and mentored frontend engineers.
Nov 2018 – Jan 2021
Channel Bakers
Frontend Engineer
Rebuilt an Amazon Advertising B2B SaaS product with modular components, built a component library for an Amazon landing page builder used by Samsung, Calvin Klein and HP, and wrote an open source performance monitoring library.
Nov 2017 – Oct 2018
Lender Homepage
Frontend Developer
Built responsive landing pages and a component library for a PHP CMS serving 3,000+ active customers, and managed client hosting, SSL, DNS and email.
Plans
One flat monthly price. Pause or cancel anytime.
Standard
For a steady stream of fixes and improvements.
$2,500/month
- One request at a time
- Everything on the What I build list
- Most small requests back in two business days
- A reply within one business day
- Private request board
- Pause or cancel anytime
Pro
Two at a timeFor a bigger backlog. Two requests run at once.
$5,000/month
- Two requests at a time
- Everything in Standard
- Most small requests back in two business days
- A reply within one business day
- Private request board
- Pause or cancel anytime
Custom
A larger build with a fixed scope, priced after discovery.
Let's talk
- Discovery and research first
- A flat quote for each step
- Pay per step, stop after any step
- Migrations off old software
- Optional care after launch
Try it for a week. Cancel within 7 days of your first payment and get 75% back, even after work is delivered.
Questions
Frequently asked.
How fast will I get my work?
Most small requests come back in two business days. Bigger requests are split into pieces, so you see progress every couple of days. If something will take longer, I tell you before I start.
How do requests work?
You get a private project board. Add as many requests to the queue as you like, and I work through them in order: one at a time on Standard, two at a time on Pro. You can see the status of everything on the board.
Who does the work?
I do, and you work with me directly. I use AI tools the way I'd use any tool, and I test every change myself before you see it.
How does pausing work?
Billing runs in 31-day cycles. If you pause partway through, the unused days stay on your account for when you come back.
What if it's not a fit?
Cancel within 7 days of your first payment and you get 75% of it back, even if I've already delivered work. After the first week you can pause or cancel anytime, but months already billed aren't refunded.
Who owns the work?
You do. Everything runs in your own accounts, like Shopify, hosting and any AI provider, so what I've delivered keeps working if you cancel. New work and fixes stop when the subscription does.
What isn't included?
Fees for the tools you run on, like Shopify, hosting or a booking platform, are billed to you directly. Brand design, copywriting and photography aren't included, but I'm happy to work with the people who do them.
What about a big project with a fixed scope?
That's the Custom plan. We start with discovery and research, then you get a reviewed, flat quote for each step. See how custom projects run.
What counts as one request?
One thing you want changed or built, like fixing a broken checkout, adding a page your staff can edit, or connecting two tools. A big request, like a new store, is split into smaller ones that ship one after another.
When do you work?
I also work full time as a software engineer, which is why I take a small number of subscription clients. I reply to every request within one business day. Emergency support outside that isn't included.
What if you go quiet?
You can see the status of every request on your board, and I reply within one business day. Everything I build lives in your accounts, so you're never locked in, and you can cancel anytime.