Role description
Principal iOS Engineer (SDK / Azure / Java)
Location: Leeds or London (Hybrid)
Type: Contract / Fixed-Term Employment
Start: ASAP
We’re hiring a Principal iOS Engineer to lead the design and delivery of a Mobile SDK modernisation programme within a large-scale platform environment.
You’ll own the iOS architecture, define SDK design standards, and build enterprise-grade components focused on security, performance, and scalable distribution.
Key Responsibilities
- Lead iOS architecture and technical design for SDK development and modernisation
- Define best practices for SDK distribution, testing, and security
- Build and validate POCs aligned to target enterprise architecture
- Design reusable SDKs consumed by external mobile applications
- Ensure compliance with privacy, App Store, and regulated environment standards
- Mentor engineers and drive coding, API, and quality standards
Key Skills & Experience
- Strong experience as a Senior / Principal iOS Engineer (minimum of 6+ years)
- Proven track record building and maintaining reusable iOS SDKs/frameworks
- Expert in Swift (Concurrency, Combine) with Objective-C interoperability
- Experience with SDK distribution (XCFrameworks, SPM, CocoaPods)
- Strong understanding of iOS security (Keychain, Secure Enclave, App Attest, certificate pinning)
- Knowledge of privacy standards (ATT, Privacy Manifests, data minimisation)
- Experience with performance optimisation and testing (Instruments, XCTest)
- Familiarity with Azure / backend integration (Java-based platforms) is a plus
Hurry & apply to learn more!
#UST
Skills
java,detection system,backend development,fraud detection,cloud computing,
About UST
UST is a global digital transformation solutions provider. For more than 20 years, UST has worked side by side with the world’s best companies to make a real impact through transformation. Powered by technology, inspired by people and led by purpose, UST partners with their clients from design to operation. With deep domain expertise and a future-proof philosophy, UST embeds innovation and agility into their clients’ organizations. With over 30,000 employees in 30 countries, UST builds for boundless impact—touching billions of lives in the process.
