The half of the app your users never see — and the half attackers target first. Laravel and Node.js backends purpose-built for iOS and Android: token auth, push, offline sync, media and abuse protection, tested against the OWASP API Top 10.
A mobile app is only as secure and as fast as its backend. Evosec builds mobile backends that handle the things Firebase templates get wrong at scale: proper token lifecycles, per-user authorisation on every object, rate limiting and abuse protection, and sync logic that survives flaky networks.
We build them alongside our React Native, Flutter and native apps — or for apps built by someone else. Either way, the same penetration testers who attack mobile clients for banks attack the API before it goes live.
Short-lived access tokens, refresh rotation, device binding, biometric re-auth, social & enterprise SSO.
APNs / FCM with topic and segment targeting, in-app messaging, SMS/WhatsApp via Twilio.
Delta sync, conflict resolution and idempotent writes for field-service and low-connectivity apps.
Direct-to-S3 uploads with signed URLs, image/video processing pipelines, CDN delivery.
Rate limiting, Play Integrity / App Attest verification, bot detection and fraud signals.
BOLA/IDOR, mass assignment, broken auth and the rest of the OWASP API Top 10 — tested before launch.
Firebase is fine for prototypes. Once you need complex authorisation, relational data, compliance (GDPR/HIPAA) or predictable costs, a Laravel or Node.js backend pays for itself. We build both and migrate from Firebase regularly.
Yes — we deliver an OpenAPI spec first so both teams work against the same contract.
Data minimisation, EU hosting where required, consent tracking, export/delete endpoints and retention policies designed in from the start.
Every time. Our security team tests the API against the OWASP API Top 10 before launch and re-tests fixes for free.