Principal Mobile Engineer

**W2 Only**
Description
We are seeking a Principal Mobile Engineer with deep expertise in iOS development and strong working knowledge of Android, who will drive the design, development, and evolution of AI-enabled mobile applications. This role combines hands-on technical leadership, mobile architecture ownership, and mentorship, while partnering closely with Product, Design, Backend, Data, and AI teams.
The ideal candidate is passionate about building secure, scalable, and intuitive mobile experiences, and is excited to apply AI/ML capabilities such as personalization, intelligent automation, and predictive insights directly within mobile products.
Key Responsibilities
Lead the architecture and development of native iOS applications, ensuring high performance, reliability, and scalability across devices.
Provide technical direction and code-level leadership for Android development to ensure cross-platform consistency and quality.
Define and enforce mobile engineering standards, best practices, and reusable components across the mobile ecosystem.
Implement on-device and cloud-based ML capabilities using modern mobile and backend frameworks.
Architect and develop native iOS applications using Swift and SwiftUI, ensuring performance, scalability, and security.
Collaborate with cross-functional teams including Product, Design, Backend Engineering, and QA to deliver seamless mobile experiences.
Lead technical initiatives to improve mobile CI/CD pipelines, crash analytics, and performance monitoring.
Implement observability and monitoring solutions using tools like Firebase and Xcode Instruments.
Mentor junior mobile engineers and promote best practices across iOS and Android development.
Partner with business stakeholders to translate product requirements into scalable mobile solutions.
Operate in an AI-driven SDLC environment, leveraging tools like GitHub Copilot and Xcode AI integrations.
Implement and manage Datadog dashboards, Google and Adobe Analytics, monitors, and alerts for mobile applications.
Skills
iOS, Swift, Mobile, firebase
Job Type & Location
This is a Contract position based out of Pasadena, CA.
Pay and Benefits
The pay range for this position is $65.00 - $88.00/hr.
Individual compensation offered for this position within this range will depend on many factors, including qualifications, skills, relevant experience, job knowledge, geographic location, internal equity, and other pertinent job-related factors.
Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms. If eligible, the benefits available for this temporary role may include the following: • Medical, dental & vision • Critical Illness, Accident, and Hospital • 401(k) Retirement Plan - Pre-tax and Roth post-tax contributions available • Life Insurance (Voluntary Life & AD&D for the employee and dependents) • Short and long-term disability • Health Spending Account (HSA) • Transportation benefits • Employee Assistance Program • Time Off/Leave (PTO, Vacation or Sick Leave)
Workplace Type
This is a hybrid position in Pasadena,CA.
Application Deadline
This position is anticipated to close on Sep 23, 2026.

About TEKsystems


We're partners in transformation. We help clients activate ideas and solutions to take advantage of a new world of opportunity. We are a team of 80,000 strong, working with over 6,000 clients, including 80% of the Fortune 500, across North America, Europe and Asia. As an industry leader in Full-Stack Technology Services, Talent Services, and real-world application, we work with progressive leaders to drive change. That's the power of true partnership. TEKsystems is an Allegis Group company.


The company is an equal opportunity employer and will consider all applications without regards to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.

About TEKsystems and TEKsystems Global Services


We're a leading provider of business and technology services. We accelerate business transformation for our customers. Our expertise in strategy, design, execution and operations unlocks business value through a range of solutions. We're a team of 80,000 strong, working with over 6,000 customers, including 80% of the Fortune 500 across North America, Europe and Asia, who partner with us for our scale, full-stack capabilities and speed. We're strategic thinkers, hands-on collaborators, helping customers capitalize on change and master the momentum of technology. We're building tomorrow by delivering business outcomes and making positive impacts in our global communities. TEKsystems and TEKsystems Global Services are Allegis Group companies. Learn more at TEKsystems.com.


The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.


San Francisco Fair Chance Ordinance: Pursuant to the San Francisco Fair Chance Ordinance, for all positions located in the city and county of San Francisco, we will consider for employment qualified applicants with arrest and conviction records.


Massachusetts Lie Detector: It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.


Use of Artificial Intelligence (AI): We may use Artificial Intelligence (AI) to support parts of our hiring process, including sourcing, screening, and evaluating candidates. AI helps assess applications and qualifications, but final decisions are made by our hiring team. By applying, you acknowledge and agree that your application may be reviewed using AI tools.