Entry offer
Cloud cost review
A review of your cloud usage and architecture, with a prioritized plan to cut the bill. From $2,500, 1–2 weeks.
Fractional CTO · Web · Mobile
Senior engineering leadership for consumer apps.
We help founders in Australia and the US plan, build and run web and mobile products with payments, subscriptions and bookings. You work directly with an engineering leader who has shipped them for seven years.
70%
lower AWS costs on a consumer app platform
20
engineers hired and led across product squads
14+ years
building web, mobile and payments software
Services
Start small. Keep what works.
Most clients start with a fixed-price review, then keep us on as a retainer or bring us in to build. All prices are in USD.
Entry offer
Tech audit
Architecture, code, security, costs and team, reviewed and written up with a roadmap. From $3,000, 1–2 weeks.
Leadership
Fractional CTO
Strategy, hiring, vendor oversight and architecture for a few hours a week. From $3,000 a month.
Build
Web and mobile MVPs
React and React Native products with payments and app store release, built in 4–8 week sprints. From $12,000.
Build
Upgrades and releases
React Native and Next.js upgrades, CI/CD and automated App Store and Play Store releases. From $4,000.
AI
AI prototype rescue
Built a prototype with an AI app builder? We fix security and data issues and make it ready for real users. From $2,000.
Case study · Cloud costs
Cutting a consumer app's AWS bill by 70%
A consumer app with payments and subscriptions, running web, mobile and more than 20 backend services.
The problem
Infrastructure costs had grown with the platform. Services were oversized, duplicated or idle, and nobody owned the bill.
What we did
Rightsized Lambda functions, consolidated resources and removed idle services, alongside a migration from a monolith to serverless.
The result
AWS costs fell by 70%, with standard logging and alarms across every service so problems show up early.
How we work
Senior judgment, faster delivery
We use AI tools for the volume work and review every line that ships. You get the speed of a small team with one accountable lead.
01
Review
A fixed-price look at your product, code and costs. You keep the written report either way.
02
Plan
A written scope with milestones and a fixed price, so you know what you get and when.
03
Build or lead
We ship in short sprints or lead your team as a fractional CTO. You own the code, accounts and docs.
About
Winfred Pantig, founder
Since 2019 I have helped build Booky, the Philippines' restaurant and lifestyle discovery app: first as a software engineer, then tech lead, then engineering manager of a team of up to 20.
I led its move to serverless, its payments platform (GCash, Maya, Xendit) and two major React Native upgrades. Before that, I spent years freelancing on web apps, integrations and WordPress sites. I work from the Philippines, on Australian business hours and with early or late calls for the US.
Contact
Tell us what you're building
A 30-minute call is free. If we're not the right fit, we'll say so and point you somewhere better.
Or email hello@wrenn.digital