Mobile Developer Jobs in Belleville, IL (NOW HIRING)

Job Overview:

We're looking for a Lead iOS Engineer - Mobile Modernization to join a dedicated mobile pod delivering iOS features for a major financial-services client in a regulated, security-first environment. Pods are small and senior-anchored - you'll own the iOS architecture within your pod, set the bar for code quality, and ship production increments on a compressed timeline. We work in an AI-accelerated delivery model (AI-assisted codegen, test generation, and review) and expect engineers who can amplify their output with modern tooling.

Perficient is always looking for the best and brightest talent and we need you! We're a quickly-growing, global digital consulting leader, and we're transforming the world's largest enterprises and biggest brands. You'll work with the latest technologies, expand your skills, and become a part of our global community of talented, diverse, and knowledgeable colleagues.

This role is located on client site in Austin, TX 2-3 days per week. 

• 6+ years mobile development, 4+ years native iOS in Swift
• Deep SwiftUI experience and sound grasp of iOS architecture patterns (MVVM, Clean, TCA, or similar)
• Strong async/concurrency skills (Swift Concurrency / Combine)
• API integration, offline/caching strategies, and secure data handling on device
• XCTest / unit + UI testing and CI/CD (Xcode Cloud, Fastlane, Bitrise, or GitHub Actions)
• App Store release experience and code-signing/provisioning fluency
• Self-directed; productive in a fast-ramp, standards-driven pod

Preferred:

• Financial services, fintech, or other regulated-industry experience
• Experience building real-time trading, brokerage, or streaming market-data apps
• Exposure to in-app AI features (conversational AI, AI-driven insights or personalization)
• Familiarity with security/compliance (SSO/OAuth, biometrics, secure enclave, MDM)
• Multi-device experience: iPadOS and Apple Watch (watchOS)
• Experience with AI-assisted development tooling
• Design-system / component-library contribution

WHAT WE BELIEVE

At Perficient, we promise to challenge, champion, and celebrate our people. You will experience a unique and collaborative culture that values every voice. Join our team, and you'll become part of something truly special.

We believe in developing a workforce that is as diverse and inclusive as the clients we work with. We're committed to actively listening, learning, and acting to further advance our organization, our communities, and our future leaders... and we're not done yet.

Perficient, Inc. proudly provides equal employment opportunities (EEO) to all employees and applicants for employment without regard to race, color, religion, gender, sexual orientation, national origin, age, disability, genetic information, marital status, amnesty, or status as a protected veteran in accordance with applicable federal, state and local laws. Perficient, Inc. complies with applicable state and local laws governing non-discrimination in employment in every location in which the company has facilities. This policy applies to all terms and conditions of employment, including, but not limited to, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation, and training. Perficient, Inc. expressly prohibits any form of unlawful employee harassment based on race, color, religion, gender, sexual orientation, national origin, age, genetic information, disability, or covered veterans. Improper interference with the ability of Perficient, Inc. employees to perform their expected job duties is absolutely not tolerated.

Disability Accommodations:

Perficient is committed to providing a barrier-free employment process with reasonable accommodations for qualified individuals with disabilities and disabled veterans in our job application procedures. If you need assistance or accommodation due to a disability, please contact us.

Applications will be accepted until the position is filled or the posting is removed. 

The salary range for this position takes into consideration a variety of factors, including but not limited to skill sets, level of experience, applicable office location, training, licensure and certifications, and other business and organizational needs. The new hire salary range displays the minimum and maximum salary targets for this position across all US locations, and the range has not been adjusted for any specific state differentials. It is not typical for a candidate to be hired at or near the top of the range for their role, and compensation decisions are dependent on the unique facts and circumstances regarding each candidate. A reasonable estimate of the current salary range for this position is $73,008 to $170,640. Please note that the salary range posted reflects the base salary only and does not include benefits or any potential variable compensation programs. Information regarding the benefits available for this position are in our benefits overview

Disclaimer:  The above statements are not intended to be a complete statement of job content, rather to act as a guide to the essential functions performed by the employee assigned to this classification.  Management retains the discretion to add or change the duties of the position at any time. 

#LI-RS1

• Design and build native iOS features in Swift and SwiftUI (UIKit interop as needed)
• Own architecture decisions within your pod - modularization, state management, navigation, dependency injection
• Integrate against REST/GraphQL APIs in partnership with the pod's API engineer
• Build performant, secure features for real-time data and transactional workflows - streaming quotes/updates, low-latency UI, and secure handling of sensitive financial data
• Establish and enforce CI/CD, automated testing, and release standards for the pod
• Uphold security, privacy, and compliance requirements appropriate to a regulated broker-dealer
• Mentor a mid-level iOS engineer and contribute to shared standards across pods
• Leverage AI-assisted tooling to accelerate delivery without compromising quality