The Senior iOS Developer is a
hands-on senior contributor to Esyasoft's iOS app, a key surface for our
clients and end-users. The role combines high-quality individual delivery with
active mentorship of mid-level iOS engineers and contribution to platform
direction.
The role owns:
• Hands-on delivery of features and improvements to
Esyasoft's iOS app
• Quality, performance and reliability of iOS code
• Code review and mentoring of less senior iOS engineers
(as required)
• Contribution to architectural decisions on the iOS
codebase
Key Responsibilities & Areas of Ownership
A. iOS
Development
• Maintain and develop high-quality iOS code aligned to
agreed technical requirements
• Provide hands-on technical knowledge in iOS
architecture, design and ongoing improvement
B.
Architecture, Patterns and Practice
• Develop using modern iOS architecture (MVVM / MVVM-C,
SwiftUI where appropriate, UIKit where established)
• Champion SOLID principles, clean architecture and
testable code
• Contribute to architectural decisions across the iOS
codebase
C.
Quality, Code Review and Releases
• Write well-tested code (unit tests as standard);
partner with the QA team on integration and UI test coverage where relevant
• Participate in code review with rigor
• Support release management — staged roll outs,
monitoring, post-release follow-through
D.
Cross-Functional Collaboration
• Communicate clearly with non-technical stakeholders
including product and design — explain trade offs without losing them
• Work with backend and data teams to ensure any blockers
or issues with APIs or data are resolved
E.
Security, Data Privacy and Compliance
• Adhere to Esyasoft's data protection and security
policies — Cyber Essentials, ISO 27001 and PCI-DSS where relevant
• Embed secure-by-default patterns in iOS code — secure
storage, key chain hygiene, certificate pinning, secrets management
F.
Learning and Engineering Growth
• Keep up with the evolving iOS ecosystem — new APIs,
framework updates, Apple platform changes
• Bring practical innovation into the team — prove value
first, then adopt
Requirements
Required
Skills & Experience
• Demonstrable senior-level commercial experience as a
native iOS developer
• Strong commercial experience with Swift and the modern
iOS development stack (MVVM, SwiftUI, UIKit)
• Extensive experience of RESTful API and third-party
integration
• Experience of TDD, BDD or other code testing practices;
understanding of data structures and algorithms
Desirable
Skills & Experience
• Commercial experience with Apple MapKit or other
mapping platforms; e-commerce or payment gateways
• Experience with Combine, Swift Concurrency and SwiftUI
• Experience with automated UI testing (XCUITest,
Snapshot Testing) and CI/CD pipelines
Key
Attributes
• Curious — actively keeps up with iOS evolution; willing
to experiment responsibly
• Pragmatic — values clarity and shipped quality over
cleverness
• Collaborative — communicates confidently with the wider
business; comfortable in a multi-disciplinary team
Use of Technologies
Esyasoft includes the requirement to
work as a competent user of:
• iOS (Swift primary, SwiftUI, UIKit) and Xcode
• RESTful APIs, Firebase, Apple frameworks, mapping and
payment integrations
• iOS CI/CD (Fastlane, GitHub Actions); crash and
performance tooling (Crashlytics, Sentry)
This role may also require
flexibility to work with new mobile platforms and tools as Esyasoft's mobile
strategy evolves.
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