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USM Jobs / Senior Mobile Developer
High Contract

JB059714 - Senior Mobile Developer Apply

  • Start Date:
    Interview Types
  • Skills Senior Mobile Develo..
    Visa Types H1B, Green Card, US ..
60-65/hr on c2c
 
Local / hybrid schedule in Chicago 
 
 
Hey!
 
I have a mobile dev in Chicago for Northern Trust that just dropped – no relo. Let me know if you have anyone!
 
Overview: 
Senior Mobile Accelerator Engineer, you will own the design, development, and evolution of our reusable mobile frameworks, CI/CD pipelines, and best-practice accelerators. You’ll partner closely with product-line engineering teams, architects, security, and QA to ensure new features, performance optimizations, and security controls are integrated seamlessly across our iOS, Android, and hybrid platforms.

Key Responsibilities: 
  • Framework & SDK Development
  •  
  • Architect and implement modular, reusable iOS (Swift/Objective-C) and Android (Kotlin/Java) SDKs and libraries
  • Define and enforce design patterns (MVC, MVVM, Clean Architecture) across accelerator modules
  Hybrid & PWA Integration
  Build and maintain bridges for React Native and PWA micro-frontends within native shells
  CI/CD & Automation
  Design and optimize end-to-end pipelines using Azure DevOps and GitHub Actions (Fastlane, Firebase App Distribution, Play/App Store publishing)
  Develop automated UI and regression testing suites (XCTest, Espresso, Appium)
  Performance & Quality Engineering
  Profile, benchmark, and tune app performance (Instruments, Android Profiler)
  Integrate static analysis and security scans (SonarQube, Checkmarx, Zimperium RASP)
  Security & Complianc
  Implement secure storage, encryption, certificate pinning, and OAuth/OIDC best practices (Okta, Entra ID)
  Ensure alignment with financial-services compliance (PCI-DSS, ISO 20022 data handling)
  Telemetry & Monitoring
  Instrument analytics, crash-reporting, and alerting (Firebase, Dynatrace, Google Analytics, Crashlytics)
  Build dashboards for real-time health and usage metric
  Collaboration & Enablement
  Mentor and guide product-team engineers in adopting accelerator components
  Drive documentation, sample apps, and workshops to increase framework adoption
Required Qualifications

• 5+ years of native iOS (Swift/Objective-C) and Android (Kotlin/Java) development

• Demonstrated experience building and publishing reusable SDKs/libraries

• Expertise with Azure DevOps and/or GitHub Actions for mobile pipelines

• Hands-on experience with Docker and Azure Kubernetes Service (AKS) for container orchestration

• Strong understanding of mobile app security, encryption, and OAuth/OIDC flows

• Proven track record in performance profiling and static-analysis integration

• Excellent written and verbal communication; ability to craft clear docs and samples

• Bachelor’s or Master’s in Computer Science, Software Engineering, or equivalent


Preferred Experience

• Hybrid/mobile web expertise: React Native or PWA micro-frontend patterns

• Background in financial-services or regulated-industry mobile apps

• Familiarity with API gateway patterns (Akamai, Azure Front Door & APIM, Google Cloud)

• Exposure to enterprise-scale mobile security tools (Zimperium, NowSecure)

• Scrum/Agile practitioner with experience writing epics, features, and user stories