Senior IOS Developer
About this role
We are looking for a Senior iOS Developer to lead development and maintenance of our native iOS application in a shared mobile platform environment. This role requires strong hands-on experience with native iOS engineering, including Objective-C-based production applications, UIKit-driven app flows, SDK integrations, and release management across multiple schemes and environments.
As a Senior iOS Developer, you will work across the branded app layer and a broader ecosystem of internal mobile frameworks. You will be expected to improve code quality, own technical decisions, support production releases, and help the team navigate integration-heavy mobile development involving notifications, deep linking, attribution, and App Store delivery processes.
Key Responsibilities
• Design, develop, test, and maintain native iOS functionality across multiple app schemes and environments
• Work confidently in an Objective-C-heavy codebase, while contributing where needed to Swift-based or framework-integrated components
• Lead integration of internal mobile frameworks and third-party SDKs used for notifications, attribution, analytics, and application services
• Own technical implementation for deep linking, notification flows, app lifecycle behavior, and environment-specific configuration
• Support App Store and non-production release processes, code signing, provisioning, and build automation
• Troubleshoot complex issues across app code, embedded frameworks, and runtime configuration
• Collaborate with product owners, backend engineers, QA, and other mobile engineers to deliver robust software solutions
• Drive code reviews, mentoring, and engineering best practices across the iOS team
• Improve application stability, maintainability, and release quality over time
• Document architectural decisions, platform integrations, and release-critical technical details
Company at a glance
Numerator is a data and tech company bringing speed and scale to market research. Numerator blends first-party data from over 1 million US households with advanced technology to provide unparalleled 360-degree consumer understanding for the market research industry that has been slow to change. Headquartered in Chicago, IL, Numerator has more than 5,400 employees worldwide. The majority of Fortune 100 companies are Numerator clients.
Tired of cold applications?
Sign up with Clera and we'll reach out the moment a role actually fits you — no more spraying applications into the void.
Know someone who'd be great for this?