Senior Software Engineer – Mobile Development (iOS)

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.

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

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 experience a plus

Strong proficiency in Swift, Xcode, and modern iOS frameworks (UIKit, SwiftUI, Combine, etc.)

Experience building and deploying applications to the App Store or enterprise distribution

Experience integrating RESTful APIs and working with backend services

Familiarity with agile or iterative development processes

Strong understanding of mobile architecture, design patterns, and performance optimization

Excellent problem‑solving skills and attention to detail

Strong communication skills and experience collaborating with cross‑functional teams

Salary Range: $105,000 - $110,000

All applications must include a cover letter. Applications without a cover letter will be considered incomplete. Have developed and deployed at least one iOS application to the Apple App Store

Demonstrate proficiency in React Native development through portfolio or work samples

Did you know? We offer Comprehensive health coverage for employees and their eligible dependents

Our wellness program offers eligibility into the discounted medical plan

Employees receive paid vacation, sick leave, and holidays

Generous retirement savings options are available

Pay off your student loans faster - As a qualifying employer, City of Philadelphia employees are eligible to participate in the Public Service Loan Forgiveness program. Join the ranks of hundreds of employees who have already benefited from this program and achieved student loan forgiveness.

Enjoy a Free Commute on SEPTA - Starting September 1, 2023, eligible City employees will no longer have to worry about paying for SEPTA public transportation. Whether you're a full-time, part-time, or provisional employee, you can seize the opportunity to sign up for the SEPTA Key Advantage Program and receive free Key cards for free rides on SEPTA buses, trains, trolleys, and regional rails.

Unlock Tuition Discounts and Scholarships - The City of Philadelphia has forged partnerships with over a dozen esteemed colleges and universities in the area, ensuring that our employees have access to a wide range of tuition discounts and scholarships. Experience savings of 10% to 40% on your educational expenses, extending not only to City employees but in some cases, spouse and dependents too!

*The successful candidate must be a city of Philadelphia resident within six months of hire

Effective May 22, 2023, vaccinations are no longer required for new employees that work in non-medical, non-emergency or patient facing positions with the City of Philadelphia. As a result, only employees in positions providing services that are patient-facing medical care (ex: Nurses, doctors, emergency medical personnel), must be fully vaccinated. The City of Philadelphia is an Equal Opportunity employer and does not permit discrimination based on race, ethnicity, color, sex, sexual orientation, gender identity, religion, national origin, ancestry, age, disability, marital status, source of income, familial status, genetic information or domestic or sexual violence victim status. If you believe you were discriminated against, call the Philadelphia Commission on Human Relations at 215-686-4670 or send an email to faqpchr@phila.gov. For more information, go to: Human Relations Website:

http://www.phila.gov/humanrelations/Pages/default.asp