Software Engineering - Software Engineer V

Apex Systems; Burlingame (CA); On-site; USD 107,000 - 121,000; Part time

Benefits offered by this job

Medical, dental, vision insurance

Job summary

Everforth Apex is seeking a Senior Mobile Systems Engineer in Burlingame to lead design and development of software across mobile apps, wearables, and backend services. You will tackle complex concurrency, optimize performance, and collaborate with cross‑functional teams to deliver robust solutions.

The role requires a strong background in Kotlin or Swift, async programming, and multithreading, with experience in distributed backends. Onsite work in Burlingame, CA with competitive compensation.

Qualifications

• Bachelor's degree in Computer Science, Computer Engineering, or related field, or equivalent practical experience.
• 10+ years of software engineering experience focused on mobile products with distributed backends.
• Strong proficiency in Kotlin or Swift, with async and multithreaded programming skills.

Responsibilities

• Design, develop, and implement complex software systems across mobile apps, wearables, and distributed backends.
• Write clean, efficient, and performant code in Kotlin or Swift with async programming techniques.
• Debug and resolve concurrency issues, race conditions, and deadlocks to ensure reliability.
• Optimize CPU usage, memory allocation, latency, and overall system performance for mobile products.
• Collaborate with cross-functional teams to define architecture, integrate APIs, and refine features.
• Participate in design reviews and contribute to engineering best practices.

Skills

Kotlin

Swift

Async programming

Multithreading

Memory management

Education

Bachelor's degree in Computer Science or Computer Engineering

Tools

C++

Rust

AOSP

Job description

## Job Description# Software Engineering - Software Engineer VApply**Job#: 3056613****Job Description:**Software Engineering - Software Engineer V**Location:** Burlingame, Sunnyvale, MPK, NYC - onsiteCOMPENSATION: $78 - $88 HOURLYRole OverviewOur organization is seeking a Senior Mobile Systems Engineer with extensive client-server experience to drive the development of advanced technology platforms. The successful candidate will design and implement sophisticated software systems spanning wearable devices, mobile applications, and distributed backend services. This role demands a high level of expertise in resolving complex concurrency issues, optimizing system performance, and collaborating across functional teams to deliver robust software solutions.Key Responsibilities* Design, develop, and implement complex software systems across mobile applications, wearable devices, and distributed backend services.* Write clean, efficient, and performant code in Kotlin or Swift, utilizing async programming techniques.* Debug and resolve challenging concurrency issues, race conditions, thread-safety anomalies, and deadlocks.* Optimize CPU usage, memory allocation, latency, and overall system reliability for mobile products.* Collaborate closely with cross-functional teams to define architecture, integrate APIs, and refine product features.* Participate in system design reviews and contribute to engineering best practices across the organization.Required Qualifications**Education:** Bachelor's degree in Computer Science, Computer Engineering, or a related technical discipline, or equivalent practical experience.**Experience:** Ten or more years of software engineering experience, specifically focused on building mobile products with distributed backends. Seven or more years of experience is acceptable if accompanied by proficiency in preferred programming languages or technologies.**Technical Skills:** Deep proficiency in Kotlin or Swift, with strong async and multithreaded programming skills. Solid understanding of memory management, resource ownership, and performance optimization techniques.Preferred Qualifications* Experience building software for wearable devices, such as smart glasses, watches, or mixed-reality headsets.* Proficient systems programming skills in C++ or Rust.* Familiarity with the Android Open Source Project (AOSP).* Exposure to AI/ML engineering workflows, including LLM prompt tuning, evaluations, tool calling, and agent orchestration.* Strong cross-functional collaboration and technical communication skills. *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:** Burlingame, CA, US**Job Type:** Engineering and Technicians**Date Posted:** October 20, 2026**Pay Range:** $78 - $88 per hour