Senior Mobile App developers, based in the US, working your hours
iOS, Android, and cross-platform apps, built by US engineers who take an app from idea to both app stores.
- Every engineer lives and works in the US
- Works your hours, joins your standups
- NDA and full IP assignment from day one
Book your call: tell us what you need
"NextGen scaled us from 2 to 7 dedicated engineers in under a quarter. Enterprise-grade capacity, zero agency drag."
"Their R&D tax credit workflow platform paid for itself in the first filing season."
"AI-native from day one. Our IRS transcript pipeline runs 24/7 without a human in the loop."
"Property tax appeals used to take weeks. Their comp analysis tooling turned it into hours."
"The AI intake agent handles our tier-1 patient calls with a hand-off cleaner than our old call center."
"POS, inventory, ordering — all unified. We finally have one source of truth across every location."
"The procurement platform paid for itself in the first quarter of use."
"They shipped our matching engine in 6 weeks. Our old team would've taken 6 months."
"Enterprise-grade delivery without the enterprise-agency price tag."
"Their team plugged into our sprint on day one. Zero ramp time."
"NextGen scaled us from 2 to 7 dedicated engineers in under a quarter. Enterprise-grade capacity, zero agency drag."
"Their R&D tax credit workflow platform paid for itself in the first filing season."
"AI-native from day one. Our IRS transcript pipeline runs 24/7 without a human in the loop."
"Property tax appeals used to take weeks. Their comp analysis tooling turned it into hours."
"The AI intake agent handles our tier-1 patient calls with a hand-off cleaner than our old call center."
"POS, inventory, ordering — all unified. We finally have one source of truth across every location."
"The procurement platform paid for itself in the first quarter of use."
"They shipped our matching engine in 6 weeks. Our old team would've taken 6 months."
"Enterprise-grade delivery without the enterprise-agency price tag."
"Their team plugged into our sprint on day one. Zero ramp time."
Sound familiar?
- Hiring a senior Mobile App developer full-time is taking months.
- Your Mobile App codebase has grown messy and every change breaks something else.
- Offshore hand-offs and time-zone gaps turn one-day fixes into week-long threads.
- You need someone senior enough to make decisions, not just close tickets.
What our Mobile App engineers build
iOS & Android
Native or cross-platform, chosen for your product.
Back-ends & APIs
Login, payments, and data synced to your systems.
App rescues
Stalled or crash-prone apps stabilized and shipped.
How it works
- 01
15-minute call
Tell us what you need built or fixed and where it's stuck.
- 02
Matched profiles
You meet US-based engineers with directly relevant work behind them.
- 03
You interview
Run your own technical interview. You only move forward with people you pick.
- 04
They start shipping
Onboarded into your repo, tools, and review process, with a weekly written update.
Hire senior US-based mobile app developers from NextGen Coding Company for iOS, Android, or cross-platform application work. Frame your requirements around Swift and SwiftUI, Kotlin and Jetpack Compose, React Native, or Flutter rather than treating mobile as one interchangeable skill. Typical projects include field-service apps, subscription products, and customer account apps with push notifications, camera access, and offline workflows.
Your engineer works your hours and participates in standups, with every engineer living and working in the US and no offshore subcontracting. Use the initial discussion to identify platform requirements, supported OS versions, and App Store Connect or Google Play release constraints. We sign an NDA and full IP assignment before code access, including access to existing application repositories.
Frequently asked questions
- Should we hire a native or cross-platform mobile developer?
- Choose based on device integrations, UI requirements, existing code, and team ownership. SwiftUI and Jetpack Compose suit platform-specific experiences; React Native and Flutter support shared application code. Ask candidates about Bluetooth, background execution, accessibility, and native SDK integration. Those requirements often matter more than a simple comparison of shared versus separate codebases.
- What experience matters for React Native or Flutter maintenance?
- For React Native, examine native module compatibility, Expo versus bare workflows, and dependencies affected by the New Architecture. For Flutter, review Dart SDK constraints, plugin maintenance, and platform-channel usage. Ask how candidates diagnose failures in Xcode and Gradle, since cross-platform frameworks do not eliminate native build or release problems.
- How should a mobile app support offline use and synchronization?
- An offline design needs local persistence, retry rules, conflict resolution, and clear user feedback about pending changes. Discuss Room on Android, SwiftData or Core Data on iOS, or an appropriate SQLite integration for cross-platform apps. Interview around interrupted uploads and duplicate submissions, not just whether screens remain visible without a connection.
- What should a mobile developer know about app store releases?
- Look for familiarity with signing certificates, provisioning profiles, Android app signing, TestFlight, and Google Play testing tracks. Release planning should include privacy declarations, permission prompts, crash monitoring, and backend compatibility with older app versions. Store approval is controlled by Apple and Google, so no developer should promise a guaranteed review outcome.
- How do we start hiring a US-based mobile app developer?
- Book a 15-minute call with your target platforms, framework, device requirements, and next release goals. Most teams can interview matched engineers within a week of that conversation. Share whether the priority is store submission, native integration, or maintenance. If the match does not work, we arrange a replacement with a proper hand-over.
- Are your developers really based in the US?
- Yes. Every engineer lives and works in the United States. No offshore subcontracting and no hand-offs to another team. That's written into the contract.
- How fast can someone start?
- Most teams interview matched engineers within a week of the first call. Start dates depend on your interview process.
Related reading
- How to hire a software developer
What to check before you sign.
- Hiring test for senior engineers
How to vet senior talent fast.
- Senior engineer salary guide 2026
What the market pays.
- Onshore vs offshore vs nearshore
The honest tradeoffs.
- Forward deployed engineers
Need an owner, not just capacity?
- Resource library
Every guide and benchmark we publish.
Start your project request
Tell us what you're building — engineering capacity, AI, QA, cloud, or a fixed-scope software engagement. Our NYC team responds within one business day.
- Response within 1 business day
- 30-minute discovery conversation
- Recommended engagement model & pricing
- NYC-focused — in-person available
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