Senior UX Designer (Mobile Apps - iOS & Android)

Overview

We are seeking a Senior UX Designer with extensive experience designing native mobile applications for iOS and Android. This role will be responsible for creating intuitive, engaging, and scalable mobile experiences that serve end users in complex, data-rich environments. The ideal candidate combines strong interaction design skills with a deep understanding of mobile-first design principles, platform guidelines, accessibility standards, and user-centered design methodologies.

Key Responsibilities

• Lead the end-to-end design of native mobile experiences across iOS and Android applications.
• Create intuitive user flows, wireframes, prototypes, and high-fidelity designs that align with platform-specific best practices.
• Partner with Product Managers, Engineers, Researchers, and business stakeholders to define product requirements and user experiences.
• Translate complex information, workflows, and data into clear, actionable, and user-friendly mobile interfaces.
• Design mobile experiences that leverage native device capabilities, notifications, permissions, connectivity, sensors, and system interactions.
• Ensure consistency across products through scalable design systems and reusable components.
• Conduct usability testing and incorporate user feedback into iterative design improvements.
• Collaborate closely with engineering teams throughout implementation to ensure design quality and platform alignment.
• Advocate for accessibility, inclusive design, and seamless mobile experiences.

Required Qualifications

• 8+ years of UX, Product Design, or Mobile Product Design experience, with a strong focus on native applications.
• Proven experience designing and shipping mobile products on both iOS and Android platforms.
• Expert knowledge of:
  • Apple Human Interface Guidelines (HIG)
  • Material Design for Android
  • Native mobile interaction patterns
  • Mobile accessibility best practices
• Strong portfolio demonstrating:
  • Native mobile app design work
  • User journeys and task flows
  • Wireframes and prototypes
  • High-fidelity UI design
  • Design systems
  • Usability testing and design rationale
• Advanced proficiency in Figma for design, prototyping, and developer handoff.
• Strong understanding of responsive and adaptive mobile design principles.
• Experience working within Agile product development environments.

Preferred Qualifications

• Experience designing applications that integrate with connected devices, wearables, sensors, or smart products.
• Experience with enterprise, healthcare, fintech, SaaS, or other complex mobile products.
• Experience designing data visualization experiences optimized for mobile devices.
• Familiarity with mobile engagement features such as notifications, onboarding, account management, and personalization.
• Experience building and maintaining design systems across multiple mobile platforms.
• Knowledge of Human Factors, accessibility standards (WCAG), and usability testing methodologies.
• Experience leveraging AI-powered design tools and workflows.

Top Skills

• Native Mobile App Design (iOS & Android)
• UX Design
• Product Design
• Figma
• Design Systems
• Mobile User Research
• Prototyping
• Interaction Design
• Information Architecture
• Accessibility Design

Ideal Candidate

The ideal candidate is a mobile-first designer who understands the nuances between iOS and Android experiences, has successfully launched consumer-facing mobile applications, and can balance user needs, business objectives, and technical constraints to deliver exceptional mobile products. Portfolio examples showcasing native mobile app work are strongly preferred.

Job Type & Location

This is a Contract position based out of San Diego, CA.

Pay and Benefits

The pay range for this position is $60.00 - $75.00/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 San Diego,CA.

Application Deadline

This position is anticipated to close on Aug 26, 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.