Software Engineer V - Senior Mobile Systems Engineer

Spectraforce Technologies; Burlingame (CA); On-site; USD 150,000 - 210,000; Full time

Job summary

Spectraforce Technologies is seeking a Senior Mobile Systems Engineer for a 6-month engagement across Burlingame, Sunnyvale, MPK CA or NYC. You will design and implement software for wearable devices, IOS/Android apps, and distributed backends, focusing on concurrency, memory management, and system reliability.

Strong communication skills are essential. Requirements include 10+ years of experience, Kotlin/Swift expertise, and experience in multithreaded, event-driven systems.

Qualifications

• Mobile products experience in Kotlin/Swift with distributed backends.
• Multithreading and async programming.
• Architecture design, performance optimization, reliability improvements.

Responsibilities

• Design and implement software systems spanning wearable devices, iOS/Android mobile applications, and distributed backend services.
• Proficiency in Kotlin or Swift, async programming.
• Strong understanding of memory management, resource ownership, race conditions and deadlock preventions.
• Debug race conditions, thread-safety issues, and complex concurrency issues.
• Optimize CPU, memory, latency and system reliabilities.
• Verbal and written communication skills.

Skills

Kotlin/Swift

Concurrency

System design

Memory management

Job description

Job Title: Software Engineer V - Senior Mobile Systems Engineer

Duration: 06 Months (Possible extension)

Location: Burlingame, Sunnyvale, MPK (CA) or NYC, NY

Summary:

• The client is looking for a Senior Mobile Systems Engineer with client-server experiences

Must-Have HARD Skills:

• Mobile - Experience building mobile products in Kotlin/Swift with distributed backends
• Concurrency & Async - Experience in multithreaded, event-driven systems
• System Engineering - Architecture design, performance optimization, system reliability improvements

Nice-to-have Skills:

• Wearables - Experience building wearable products (glasses, watches, MR headsets, etc)
• C++/Rust: Proficient system programming in either programming language
• AI/ML Engineering - LLM prompt tuning, evaluation, tool calling, and agent workflows

Years of Experience:

• 10+ years 7+ with NTH skills, open to considering

Key Projects/Day-to-Day Responsibilities:

• Proficient in Kotlin or Swift, async programming
• Design and implement software systems spanning wearable devices, IOS/Android mobile applications, and distributed backend services
• Strong understanding of memory management, resource ownership, race conditions and deadlock preventions
• Debug race conditions, thread-safety issues, and complex concurrency issues
• Optimize CPU, memory, latency and system reliabilities
• Verbal and written comms skills

Interview Process:

• How many rounds of interviews: 2 rounds
• Types of Interviews: behavioral, technical, presentation, etc. (45 mins each Mainly technical and some behavioral)

Are there any immediate disqualifiers or red flags that stand out:

Short tenure - less than 1 year