Mobile App Development in Seattle, WA
Seattle is anchored by Amazon and Microsoft, surrounded by a fast-moving SaaS and dev-tools ecosystem, and threaded through with a steady current of bootstrapped indie SaaS founders. Most companies here speak fluent cloud — what they want from a mobile partner is a Docker-native backend, a cloud-portable API, and a mobile client that does not fight their stack.
The problem with off-the-shelf mobile in Seattle
Off-the-shelf mobile shops bring vendor SDKs that lock you into their analytics, their billing, their crash reporting. Seattle technical buyers want the mobile equivalent of an API-first product — clean module boundaries, documented endpoints, and no vendor lock-in.
A custom mobile build puts the data model, the UI, and the platform layer around how you actually operate. No vendor SDK tax. No per-seat ratchet. For Seattle operators specifically, that means mobile shaped for dev-tools and cloud-native mobile — not a generic template.
What we ship for Seattle companies
Docker-native backend for mobile
Container-first APIs that drop into AWS, GCP, Azure, or your own Kubernetes without theater.
API-first mobile data layer
Every mobile action is a documented REST or GraphQL endpoint — your dev tools and SaaS product talk to it like a peer service, not a black box.
Stripe + usage-based billing in-app
Plan, meter, dunning, and license state visible on the mobile customer record. Built for developer-tool pricing models that vendor mobile templates will not model.
Single-sign-on + IAM-grade access
OIDC, SAML, fine-grained RBAC inside the mobile client. Your security review team sees what they expect to see.
Tech stack
Hosted on Vercel, AWS, or your own infrastructure. PostgreSQL is the source of truth; the mobile client defers to it.
Reference builds
Seattle-relevant reference work includes SaaS operations platforms (J5 Sales OS, UEhub) and developer-tool patterns we ship across the portfolio — Docker-native deploys, OpenAPI-documented endpoints, Stripe metering, Postgres-native reporting. The mobile client meets what a Seattle-grade engineering reviewer expects: TypeScript, React Native, signed-token authentication, audit trails, and clean API surfaces — not vendor lock-in.
Reference work: J5 Sales OS, Northcrest Fence, and Bridgepointe Painting.
How we work remote from Georgia
QUANT LAB USA is founder-led from Macon, Georgia. William Beltz runs every engagement from kickoff through handoff — no agency middleman, no offshore handoff at the framework boundary. Discovery happens over a structured video session; weekly demos run on the same cadence; staging is live from week two so you can put a real mobile build in your team's hands before final delivery.
For Seattle clients, that means full Eastern-time overlap, fixed-scope contracting against milestones, and on-site work when the engagement warrants it. Book a scope call to walk through your workflow and get a written estimate.
Pricing for Seattle mobile builds
Seattle mobile engagements typically scope between $45,000 and $115,000 for a production-grade MVP with backend. Senior-engineering bake-off included.
We quote fixed-fee scope after a 30-minute discovery call. Engagements include the mobile client, the backend, the API surface, Stripe and payments wiring as scoped, and App Store and Play Console submission. Source-code handoff is included at delivery — no platform fees, no per-seat charges, no vendor lock-in. See our parent mobile service page for the broader engagement model.
What you get
- Full source code repository (yours, no lock-in)
- iOS and Android builds submitted under your developer accounts
- Backend API + PostgreSQL database
- Stripe / Apple Pay / Google Pay wiring as scoped
- Push notification setup (APNs + FCM)
- 30-day post-launch support included
Seattle mobile FAQ
Will the backend deploy cleanly to AWS or our own Kubernetes?
Yes. Docker-native by default, cloud-portable, and we will hand you the Terraform or Helm chart at delivery.
Can the mobile app be queried by our SaaS product as a peer service?
Yes — every action is a documented endpoint with stable auth. Your product and your mobile users look at the same data through different surfaces.
Time-zone overlap with Pacific?
Comfortable working morning through early afternoon Pacific from a Georgia HQ. Async-first for the rest.
Will you bake-off against an in-house Seattle engineering team?
Yes. Code samples, architecture walk-through, and a live whiteboard on request.
Do you support SAML/OIDC SSO in the mobile client?
Yes. Enterprise-grade SSO with fine-grained RBAC.
Who owns the source code?
You do. Full repository handoff at delivery — no vendor lock-in.
Related services
SaaS Platform Development
Full-stack SaaS builds — same data model behind your mobile app.
Custom CRM Development
Pair your mobile app with a CRM your team will actually use.
Stripe Integration
Apple Pay, Google Pay, Stripe Connect inside your mobile client.
AI Integration
On-device and server AI features wired into the mobile app.
DevOps + CI/CD
Mobile CI/CD, EAS, Fastlane, and release management.
Nearby cities we serve
Ship a real mobile app in Seattle.
Call William Beltz directly at (770) 652-1282 or book a 20-minute scope call to walk through your mobile build. Founder-led from quote to handoff.