MobileAppo
Services / Backend & APIs FIG. 04 — API ARCHITECTURE
SCALABLE CLOUD INFRASTRUCTURE

Mobile Backend Architecture & APIs

High-throughput REST and GraphQL APIs, real-time WebSockets, cloud databases, and auth systems built to scale seamlessly under real-world traffic loads.

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ENGINEERING HIGHLIGHTS
  • Low-Latency REST & GraphQL API Design for Mobile Payloads
  • Real-Time Bidirectional WebSockets (Socket.io, AWS AppSync)
  • Scalable Cloud Architecture (AWS, Google Cloud, DigitalOcean, Supabase)
  • PostgreSQL, Redis Caching, MongoDB & DynamoDB Data Tiering
  • OAuth2, JWT, Passkeys & Multi-Factor Auth (MFA) Integration
  • Stripe, Plaid, Twilio, Firebase Push Notifications & Third-Party SDK Integrations
SECTION 01

1. APIs Specifically Optimized for Mobile Networks

Mobile networks experience high latency, packet loss, and frequent handoffs between 5G, LTE, and Wi-Fi. Generic desktop web APIs that send bloated JSON payloads waste mobile bandwidth and drain battery life. We design mobile-first APIs using payload compression, field filtering, GraphQL query batching, and strict HTTP caching headers. By reducing response sizes and round-trips, your app loads instantly even on poor cellular connections.

SECTION 02

2. Real-Time Sync, Notifications & Payment Gateway Wires

Modern mobile experiences rely on instant feedback—whether updating driver positions on a map, delivering push notifications, or processing instant peer-to-peer payments. We integrate enterprise payment gateways like Stripe and Plaid with webhook event processors, build fault-tolerant push notification pipelines via Apple APNs and Firebase Cloud Messaging (FCM), and implement WebSockets for live chat and data streaming.

CROSS-DISCIPLINARY ARCHITECTURE

RELATED TECH STACKS & INDUSTRIES

RECOMMENDED TOOLING

FRAMEWORKS & LANGUAGES

→ Swift & SwiftUI iOS Engineering (Native iOS) → Kotlin & Jetpack Compose Android Engineering (Native Android) → React Native & Expo Ecosystem (Cross-Platform)
TARGET VERTICALS

INDUSTRY SOLUTIONS

→ Fintech & Digital Banking Mobile Engineering → Healthcare & Telehealth App Engineering → Logistics & On-Demand Dispatch Mobile Apps
PROVEN IMPLEMENTATION

CASE STUDIES BUILT WITH THIS DISCIPLINE

FINTECH & DIGITAL BANKING

MobileAppo Pay (Ledgerline)

A next-generation native iOS mobile banking and crypto asset management app built for high-frequency retail transactions with biometrics, sub-10ms ledger sync, and hardware-enclave key storage.

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HEALTHCARE & PATIENT MONITORING

MobileAppo Health (Pulsewell)

A HIPAA-compliant dual-platform native healthcare app connecting patients with medical specialists for HD video consultations, real-time vital sign tracking, and encrypted prescription management.

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SPECIFICATION MATRIX

TECHNOLOGY & TOOLING

Languages & Runtime
Node.js (TypeScript), Go, Python, PHP (Laravel), C# (.NET)
Databases
PostgreSQL, Redis, MongoDB, MySQL, DynamoDB
API Standards
REST, GraphQL, gRPC, WebSockets, Server-Sent Events
Cloud & DevOps
AWS (Lambda, ECS, S3, CloudFront), GCP, Docker, Terraform, Railway
Security
OAuth2, OpenID Connect, AES-256, TLS 1.3, Rate Limiting, DDoS Protection
WORKFLOW & EXECUTION

HOW WE DELIVER BACKEND & APIS

01

Data Model & Schema Specs

Drafting OpenAPI / Swagger and GraphQL schemas with input validation boundaries.

02

Auth & Security Foundation

Implementing JWT refresh token rotation, OAuth2, and role-based access control (RBAC).

03

Core Business Logic & Caching

Building performant API endpoints paired with Redis caching tiers for hot data.

04

Push & Webhook Pipeline Wiring

Connecting APNs, FCM, Stripe webhooks, and background queues.

05

Load Testing & CI/CD Deployment

Benchmarking APIs with k6/JMeter under simulated load and configuring containerized deployments.

QUESTIONS & ANSWERS

SERVICE FAQS

Can MobileAppo connect our new mobile app to our existing legacy backend?

Yes. We routinely build light API proxy middleware or GraphQL gateway layers that sit between legacy backends and mobile apps, transforming legacy formats into fast, mobile-friendly responses.