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# Software Engineer, Mobile SDK

- **Company:** CloudFlare
- **Location:** Austin, TX, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Flutter, Application Programming Interfaces (APIs), Artificial Intelligence, Apple IOS, Applications Architecture, User Authentication, C++ (Programming Language), Code Review, Software Architecture, Mobile Security, Backend, Kotlin, Cloudflare, React Native
- **Published:** October 16, 2026
- **Apply:** https://www.jofdav.com/jobs/60126298-software-engineer-mobile-sdk

## About the Role

* Deep experience building production software for either iOS with Swift or Android with Kotlin, and enough familiarity with the other ecosystem to guide shared architectural decisions
 * Experience designing or owning customer-distributed SDKs, libraries, or similarly constrained developer-facing products
 * Experience with mobile platform security concepts, including app and device integrity, secure key storage, application signing, authentication, and secure communications
 * Familiarity with native mobile networking stacks, HTTP APIs, and the integration challenges introduced by different application architectures and networking libraries
 * Experience diagnosing production issues that cross application, SDK, network, and service boundaries, while designing safe diagnostics that do not expose sensitive data
 * Understanding of mobile package distribution, source and binary compatibility, dependency management, and reliable release practices
 * Experience writing technical designs and aligning decisions across product, client, backend, edge, and security teams
 * Experience mentoring engineers and raising a team's technical bar through design review, code review, and knowledge sharing
 * Empathetic, proactive, and constructive written and verbal communication skills
 * Proven ability to operate within strict mobile performance budgets, including binary size, battery use, startup time, and main-thread overhead, * Familiarity with how native SDKs are consumed by cross-platform frameworks such as React Native and Flutter is a plus
 * Familiarity with lower-level languages like C++ or Rust for high-performance, cross-platform security modules is a plus

## Description

At Cloudflare, were not looking for people who wait for a polished roadmap; were looking for the builders who see the cracks in the Internet that everyone else has simply learned to live with. We value candidates who have the instinct to spot a "normalized" problem and the AI-native curiosity to create a solution using the latest tools. Our culture is built on iteration, leveraging AI to ship faster today to make it better tomorrow, while ensuring that every improvement, no matter how small, is shared across the team to lift everyone up. If youre the type of person who values curiosity over bureaucracy, and that AI is a partner in solving tough problems to keep the Internet moving forward, youll fit right in., In this role, you will define the client architecture and public APIs for native iOS and Android SDKs, working from deep expertise in at least one of those ecosystems. You will establish foundations that are testable, well-documented, lightweight, and straightforward for customer engineering teams to integrate and operate., As a senior software engineer, you will set standards for compatibility, diagnostics, performance, and release quality across mobile platforms. You will work closely with product and engineering partners to turn a security problem into a dependable developer product, mentor native mobile engineers, and help resolve complex customer integration issues. You will be successful in this role if you combine strong native engineering judgment and a track record of carrying distributed software from design through production operation.