Software built by engineers who ship, not just estimate.
Custom software, web, mobile, and AI development for fintech, healthcare, and logistics teams who need an engineering partner through launch and past it — not a vendor who hands off a deck.
Platforms we build & ship on
AWS. Cloud infrastructure, serverless APIs and data pipelines.
Tech we use
We run design and engineering as one team, not two departments that hand work off to each other. The same people who scope the architecture write the code that ships it.
Results from shipped work
- Scan → compliance control in minutesCyberSpec · Read the case study →
- Live at 24x7developers.tech24x7 Developers · Read the case study →
- 40 min → 5 min dispatch response timeNorthlane · Read the case study →
- +34% mobile signup completionFerra · Read the case study →
- 4.1s → 900ms median load timeDeskline · Read the case study →
What we build.
All services- 01Web App DevelopmentProduction-grade web applications on modern frameworks, built to hold up under real traffic.
- 02Mobile App DevelopmentNative and cross-platform apps, from architecture through App Store and Play Store release.
- 03Product DesignInterfaces designed with the engineering constraints in view from day one, not discovered later.
- 04Staff AugmentationSenior engineers embedded in your team, ramped fast, reporting into your process.
- 05AI Integration & LLM AppsProduction LLM features — not a chatbot demo, but retrieval, tool-calling, and evals that hold up under real usage.
- 06Platform EngineeringInfrastructure, CI/CD, and internal tooling that keeps a growing engineering org fast.
Selected work.
Self-serve attack-surface scanning for teams without an enterprise security budget: scheduled scans, deduplicated findings, automatic compliance mapping, from $20 a month.
Scan → compliance control in minutes
Missed-call text back, online booking, appointment reminders and Google review requests for US local businesses, sold through a free 3-fix review and fixed-price setup.
Live at 24x7developers.tech
Replaced a batch-updated spreadsheet workflow with a live tracking system built for out-of-order carrier events.
40 min → 5 min dispatch response time
Native iOS and Android build of a savings product previously available only as a responsive web app.
+34% mobile signup completion
Cut median page load from 4.1s to 900ms by rebuilding the booking flow's data layer and rendering strategy.
4.1s → 900ms median load time
How an engagement runs.
- 01
Discovery & Scoping
Problem definition before solution definition — stakeholder interviews, technical spikes on the genuinely risky parts, and a scoped backlog a team can actually estimate against.
- 02
Architecture & Design
Engineering and design run in parallel, not in sequence, so a design decision's implementation cost is visible while it's still cheap to change.
- 03
Build & Integrate
Production code from week one, in your repo or ours, with CI/CD and observability wired in before the first feature ships — not bolted on after.
- 04
QA & Harden
Load testing, accessibility audits, and security review against the actual scope of the build — not a generic checklist run once at the end.
- 05
Launch & Support
We ship it, watch how it performs under real traffic, and stay on to refine it. Most engagements don't end at launch.
From the blog.
Engineering & ArchitectureOct 24, 2026 · 10 min read
Exploited Vulnerabilities in 2026: A Fix-First Guide
Product DesignSep 20, 2026 · 2 min read
What Is a Design System, and When Does Your Product Need One?
Industry GuidesSep 19, 2026 · 3 min read
Fintech App Development: Cost, Timeline, and Compliance Explained
Frequently Asked Questions
Direct answers to common questions about our engineering partnership model.
Still have a question?
Ask the engineers directly. Typical reply time is one business day.
hello@appinfinite.orgStart a conversationHave a system worth building right?
Tell us about the project. We'll respond within one business day with next steps, not a sales script.
Start a conversationWhat happens next
- 01
Send us the scope
A reply within one business day, with next steps rather than a sales script.
- 02
Talk to the people who'd build it
The engineers who scope the architecture are the ones who write the code.
- 03
Discovery, then a number
A fixed price against the agreed scope, or a dedicated team if the work is ongoing.