TEKsystems
Job Description
About the Role
We are seeking an experienced (4-7 Years) and independent Senior Software Engineer to join our Experimentation Platform team as a contractor. In this role, you will be solely responsible for building, maintaining, and optimizing iOS and Android SDKs that enable experimentation at scale.
This position requires someone who is hands‑on, highly technical, and capable of delivering latency‑critical solutions, while also being able to debug and resolve production issues independently across both platforms.
Responsibilities
Lead the design, development, and maintenance of iOS and Android SDKs for the experimentation platform.
Deliver optimized, low‑latency, and reliable SDKs for large‑scale mobile applications.
Independently debug, troubleshoot, and resolve production issues on both iOS and Android SDKs.
Own the full lifecycle of SDK development — from architecture, implementation, testing, to release management.
Partner with backend and experimentation platform teams to ensure seamless integration and end‑to‑end functionality.
Implement best practices in mobile SDK versioning, automated testing, CI/CD, and performance monitoring.
Provide strong documentation and developer support to enable easy SDK adoption.
Qualifications
4+ years of professional software development experience, with deep expertise (minimum of 3 years experience) in both iOS (Swift/Objective‑C) and Android (Kotlin/Java).
Proven track record of building and maintaining production‑grade SDKs/libraries.
Strong understanding of low‑latency mobile networking, concurrency, and memory management.
Experience independently debugging complex production issues across diverse devices and OS versions.
Familiarity with mobile performance profiling, crash analysis, and monitoring tools.
Ability to work with minimal guidance and drive solutions end‑to‑end.
Excellent communication skills and ability to collaborate across teams.
What the Team is Looking For A self‑starter and hands‑on engineer who can own both iOS and Android SDK development with minimal supervision. You should excel at writing optimized solutions in latency‑sensitive environments, while also being able to quickly diagnose and resolve production issues. This is a critical role to accelerate experimentation and innovation across our platform.
Skills
SDKs (iOS & Android)
Java
Kotlin
React Native
Data Structures
Pay And Benefits The pay range for this position is $80.00 - $85.00/hr.
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 Jose, CA .
Application Deadline This position is anticipated to close on Oct 29, 2025.
EEO Statement 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.
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About the Role
We are seeking an experienced (4-7 Years) and independent Senior Software Engineer to join our Experimentation Platform team as a contractor. In this role, you will be solely responsible for building, maintaining, and optimizing iOS and Android SDKs that enable experimentation at scale.
This position requires someone who is hands‑on, highly technical, and capable of delivering latency‑critical solutions, while also being able to debug and resolve production issues independently across both platforms.
Responsibilities
Lead the design, development, and maintenance of iOS and Android SDKs for the experimentation platform.
Deliver optimized, low‑latency, and reliable SDKs for large‑scale mobile applications.
Independently debug, troubleshoot, and resolve production issues on both iOS and Android SDKs.
Own the full lifecycle of SDK development — from architecture, implementation, testing, to release management.
Partner with backend and experimentation platform teams to ensure seamless integration and end‑to‑end functionality.
Implement best practices in mobile SDK versioning, automated testing, CI/CD, and performance monitoring.
Provide strong documentation and developer support to enable easy SDK adoption.
Qualifications
4+ years of professional software development experience, with deep expertise (minimum of 3 years experience) in both iOS (Swift/Objective‑C) and Android (Kotlin/Java).
Proven track record of building and maintaining production‑grade SDKs/libraries.
Strong understanding of low‑latency mobile networking, concurrency, and memory management.
Experience independently debugging complex production issues across diverse devices and OS versions.
Familiarity with mobile performance profiling, crash analysis, and monitoring tools.
Ability to work with minimal guidance and drive solutions end‑to‑end.
Excellent communication skills and ability to collaborate across teams.
What the Team is Looking For A self‑starter and hands‑on engineer who can own both iOS and Android SDK development with minimal supervision. You should excel at writing optimized solutions in latency‑sensitive environments, while also being able to quickly diagnose and resolve production issues. This is a critical role to accelerate experimentation and innovation across our platform.
Skills
SDKs (iOS & Android)
Java
Kotlin
React Native
Data Structures
Pay And Benefits The pay range for this position is $80.00 - $85.00/hr.
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 Jose, CA .
Application Deadline This position is anticipated to close on Oct 29, 2025.
EEO Statement 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.
#J-18808-Ljbffr