Senior Software Engineer - Mobile Development; iOS

Position: Senior Software Engineer - Mobile Development (iOS)
Description de l'entreprise

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.

Description du poste

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 version control systems, preferably Git

While you won't necessarily be working with these technologies every day, you should have a broad enough understanding of them to help support your team.

* Understanding of the modern mobile platform and common architecture

* Strong understanding of the key differences in supported hardware and features across the mobile device landscape

* One or more cross platform mobile frameworks

* Server-side programming languages such as Node.js

* Command line and shell scripts

* Web application security concerns and ways to mitigate them

* SQL, and usage of relational databases such as PostgreSQL, Oracle, MSSQL

* Amazon Web Services (AWS)

* Containerization

* Automated test/deployment pipelines

* API design and development

Qualifications

We care more about what you can do than where you learned how to do it. That said, a bachelor's degree is a good foundation for the work, and job-related experience around the competencies above is acceptable as well.

* 5+ years of professional iOS development experience.

* Supervisory or management…