Senior Software Engineer – Mobile Development (iOS)

## Company Description A best-in-class city that attracts best-in-class talent, Philadelphia is an incredible place to build a career. From our thriving arts scene and rich history to our culture of passion and grit, there are countless reasons to love living and working here. With a workforce of over 30,000 people, and more than 1,000 different job categories, the City of Philadelphia offers boundless opportunities to make an impact. As an employer, the City of Philadelphia values inclusion, integrity, innovation, empowerment, and hard work above all else. We offer a vibrant work environment, comprehensive health care and benefits, and the experience you need to grow and excel. If you’re interested in working with a passionate team of people who care about the future of Philadelphia, start here. **What We Offer:** ***Impact*** *- The work you do here matters to millions.* ***Growth*** *- Philadelphia is growing, why not grow with it?* ***Diversity & Inclusion*** *- Find a career in a place where everyone belongs.* ***Benefits -*** *We care about your well-being.* ## Job Description OIT is seeking a Senior iOS Developer to lead the design, development, and maintenance of high quality iOS applications that support City services and operations. This role will work closely with product managers, designers, backend engineers, and City department stakeholders to deliver secure, accessible, user centered mobile experiences. The Senior iOS Developer will strongly influence the full mobile development lifecycle from technical discovery and architecture through implementation, testing, deployment, and ongoing iteration. This role requires strong engineering expertise, a collaborative mindset, and a commitment to building digital tools that improve the lives of Philadelphia residents, businesses, and City employees. Essential Functions - Design, build, and maintain advanced iOS applications using Swift and modern iOS frameworks - Lead technical ios architecture decisions and establish best practices for mobile development - Collaborate with product, design, and backend engineering teams to define requirements and deliver high quality features - Translate user needs and business goals into scalable, maintainable mobile solutions - Collaborate with UX/UI designers to implement pixel-perfect designs optimized for iOS platforms - Integrate iOS applications with APIs, backend services, and City data systems - Ensure applications meet standards for accessibility, security, and performance - Conduct code reviews, mentor junior developers, and contribute to team-wide engineering excellence - Implement automated testing, CI/CD pipelines, and monitoring tools to support reliable deployments - Troubleshoot and resolve technical issues across the mobile stack - Stay current with iOS technologies, tools, and best practices, and advocate for continuous improvement - Support agile delivery practices, including sprint planning, standups, and retrospectives - Communicate progress, risks, and technical decisions clearly to technical and nontechnical audiences Competencies, Knowledge, Skills and Abilities - Deep understanding of modern iOS development principles and mobile UX patterns - Ability to balance long‑term technical strategy with hands‑on implementation - Ability to manage multiple priorities in a dynamic public‑sector environment - Commitment to equity, accessibility, and inclusive design - Strong analytical and debugging skills - Ability to mentor and support other engineers - Solid understanding of iOS development fundamentals including UIKit, Core Data, and iOS frameworks - Experience with Xcode, Interface Builder, and iOS development tools - Knowledge of Apple's Human Interface Guidelines and iOS design principles - Proficiency in Swift/Objective-C programming languages - Familiarity with App Store Connect and iOS app submission processes - Strong problem-solving skills and ability to debug complex mobile applications - Experience with vers…