IT - IOS & Android Mobile Development - Senior

Apex Systems; California; On-site; USD 143,270,000 - 185,976,000; Full time

Job summary

Everforth Apex Systems in California is seeking a Senior iOS Software Developer to design, build, and support native apps. You will develop against REST APIs, create unit tests, and participate in code reviews while mentoring junior engineers.

Ideal candidates have 6+ years of iOS experience, Swift, UIKit, SwiftUI, Combine, Xcode, and a strong grasp of CI/CD. This contract role offers challenging projects and collaboration with design and platform teams.

Qualifications

• 6+ years of native iOS development.
• Expert in-depth working experience in Swift.
• Experience with UIKit, Combine, and SwiftUI.
• Experience writing Unit Tests and Automated UI tests using XCTest.
• Experience integrating with REST APIs is required.
• Experience with CI/CD and debugging issues that arise.
• Experience performing code reviews and mentoring junior developers is required.
• Experience with iterative development methodologies such as TDD and BDD.

Responsibilities

• Prepare specifications, design, develop, and support mobile applications and prepare documentation per mobile best practices.
• Assess and optimize designs through review, evaluation tools, and analysis to ensure appropriate user experiences for phones and tablets.
• Create and perform unit testing for the spectrum of mobile devices.
• Build native mobile apps, support mobile systems in production, and resolve and troubleshoot technical problems.
• Prepare documentation for new development work while maintaining development standards.
• Develop compelling user experiences while meeting the needs of mobile users.

Job description

# IT - IOS & Android Mobile Development - SeniorApply**Job#: 3056115****Job Description:**IT - IOS & Android Mobile Development - Senior**Location:** Other, California (Onsite)**Alternate Location:** Austin, TX, Southlake, TXRole OverviewWe are seeking a Senior iOS Software Developer to join our team. In this role, you will prepare specifications, design, develop, and support mobile applications. You will be responsible for creating and performing unit testing, building native mobile apps, and supporting mobile systems in production while resolving and troubleshooting technical problems.Key Responsibilities* Prepare specifications, design, develop, and support mobile applications and prepare documentation per mobile best practices.* Assess and optimize designs through review, evaluation tools, and analysis to ensure appropriate user experiences for phones and tablets.* Create and perform unit testing for the spectrum of mobile devices.* Build native mobile apps, support mobile systems in production, and resolve and troubleshoot technical problems.* Prepare documentation for new development work while maintaining development standards.* Develop compelling user experiences while meeting the needs of mobile users.Required Qualifications* 6+ years of native iOS development.* Expert in-depth working experience in Swift.* Experience working with UIKit, Combine, and Swift UI.* Experience writing Unit Test and Automated UI tests using the XCTest framework.* Experience integrating with REST APIs is required.* Experience working with CI/CD and debugging issues that arise.* Experience performing code reviews and mentoring junior developers is required.* Experience with iterative development methodologies such as TDD and BDD.* Strong interpersonal, negotiation, facilitation, analytic, problem-solving, influencing, prioritization, decision-making, and conflict resolution skills.* Excellent written/verbal communication skills.Preferred Qualifications* Experience working with reactive architecture is preferred.* Experience with building native features as a module is a plus.* Experience/understanding of the SOLID design principles.* Experience working with Architects and Stakeholders to craft appropriate solutions.* Experience debugging memory and performance issues.* Experience working with native accessibility features such as VoiceOver and Dynamic Type.* Enterprise development experience is desirable.* Experience with design systems is desirable. *Everforth Apex is a world-class IT services company that serves thousands of clients across the globe. When you join Everforth Apex, you become part of a team that values innovation, collaboration, and continuous learning. We offer quality career resources, training, certifications, development opportunities, and a comprehensive benefits package. Our commitment to excellence is reflected in many awards, including ClearlyRateds Best of Staffing in Talent Satisfaction in the United States and Great Place to Work in the United Kingdom and Mexico.**Everforth Apex uses a virtual recruiter as part of the application process. Click here for more details. By applying for this job, you agree to receive calls, AI-generated calls, text messages, or emails from Everforth Apex and its affiliates, and contracted partners. Frequency varies for text messages. Message and data rates may apply. Carriers are not liable for delayed or undelivered messages. You can reply STOP to cancel and HELP for help. You can access our privacy policy at https://www.apexsystems.com/privacy-policy**Everforth Apex Benefits Overview: Everforth Apex offers a range of supplemental benefits, including medical, dental, vision, life, disability, and other insurance plans that offer an optional layer of financial protection. We offer an ESPP (employee stock purchase program) and a 401K program which allows you to contribute typically within 30 days of starting, with a company match after 12 months of tenure. Everforth Apex also offers a HSA (Health Savings Account on the HDHP plan), a SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions, a corporate discount savings program and other discounts. In terms of professional development, Everforth Apex hosts an on-demand training program, provides access to certification prep and a library of technical and leadership courses/books/seminars once you have 6+ months of tenure, and certification discounts and other perks to associations that include CompTIA and IIBA. Everforth Apex has a dedicated customer service team for our Consultants that can address questions around benefits and other resources, as well as a certified Career Coach. You can access a full list of our benefits, programs, support teams and resources within our ‘Welcome Packet’ as well, which an Everforth Apex team member can provide.**Everforth Apex Systems is an equal opportunity employer. We do not discriminate or allow discrimination on the basis of race, color, religion, creed, sex (including pregnancy, childbirth, breastfeeding, or related medical conditions), age, sexual orientation, gender identity, national origin, ancestry, citizenship, genetic information, registered domestic partner status, marital status, disability, status as a crime victim, protected veteran status, political affiliation, union membership, or any other characteristic protected by law. Everforth Apex will consider qualified applicants with criminal histories in a manner consistent with the requirements of applicable law.**If you require an accommodation under the Americans with Disabilities Act to participate in an interview with a virtual recruiter or to use our website for a search or application, please contact our Benefits Department at [e-mail] or 804-523-8228. Please note that this contact information is strictly to be used for medical ADA accommodations and that no other inquiries will be answered.**UnitedHealthcare creates and publishes the Transparency in Coverage Machine-Readable Files on behalf of Everforth Apex Systems.***Employee Type:** Contract**Location:** Other, CA, US**Job Type:****Date Posted:** October 15, 2026**Pay Range:** $50 - $65 per hour