Devin · iOS architect — 13 years
I’m Devin. Thirteen years inside large iOS platforms — live streaming, short video, and a 2M-line SDK consolidation. I measure the problem before I touch it, and write down the method so your own engineers can reproduce every number.
Fixed fees in USD: audits from $500, architecture reviews from $1,800. Written report, 60-minute walkthrough, one revision. Replies within one business day. 中文可直接发邮件。
Capability & years
Full-time platform roles, 2012 to present. The audits and reviews on this site are built on that employed work, not on a consulting portfolio. Client names, internal system names, and absolute business metrics stay private; the method and the relative changes are published.
Architecture
Layering and dependency direction, modularization and SPM splits, dependency injection, and test strategy. Built the Swift architecture and component framework from zero for a fully Swift app, then reduced code volume after componentization.
Performance
Cold and warm launch breakdowns, frame pacing and GPU cost measurement, memory peaks and leak inventories, and OOM diagnosis on low-tier devices. Zero high-severity incidents across a 300M+ DAU live platform.
Live & video
Three years consolidating two parallel iOS live SDKs into one shared 2M-line codebase, plus client-side delivery for 32 live matches with 30+ iOS engineers. Build time and host-app integration were cut along the way.
Employment track record, not vendor claims: these results come from full-time platform roles. No client testimonial is published here. The audit page carries the case studies with their measurement definitions and stated limits.
Start here
Pick the one that matches what you need today. Each page carries its own detail, scope, and next step.
01 · Audits & reviews
Fixed-fee audits from $500, architecture reviews, and App Store release support. Three case studies, each with its measurement definition and stated limits.
See the audits →02 · Writing
31 published pieces across 7 platforms, each listed with its platform and publication date. Only live work is counted; pieces still in review are listed separately.
Read the index →03 · Tools & kits
Five self-serve kits: performance audit checklist, SPM modularization, App Store release, CocoaPods migration, and design starter. $1 each, instant download.
Browse the store →Contact
Send the app, the flow, the device class, and your timeline. I reply within one business day with a scope and a fixed quote. If it is not a fit, I will say so.
Currently accepting new audits and reviews
superapp.devin@gmail.comWhat to send
No form and no newsletter. Write directly; a trace, a screen recording, or the last crash report is enough to start. Details are used only to scope this request.
Write to me中文可以直接发邮件，不需要表单。写清 App、卡住的流程和设备型号即可。
Replies within one business day. Remote, worldwide.