Senior Android Power and Thermal Engineer

Sigma Connectivity is a design house. We are a team of 600 talented engineers, and our main office is in Lund, Southern Sweden. Primarily, we run in-house projects focused on connected products in consumer electronics and IoT, and we have the people, expertise, and labs to deliver the most demanding products on the market. In the US, we have offices in San Jose, San Diego, and Seattle. The San Diego office is close to Palomar Airport in Carlsbad; our San Jose office is near the San Jose airport, and our Seattle office is in the heart of Bellevue. As a fast-growing company, we are constantly looking for open-minded, talented people who want to join our journey. The Sigma Connectivity company culture is about sharing experiences and knowledge, and with a Nordic work culture, we strive for work-life balance and taking care of people. Within Sigma Connectivity, you will never work alone.

Job Overview:

We are seeking a Senior Android Power and Thermal Engineer with a strong background in Android and Embedded testing and debugging, focused on system-level power characterization, battery characterization, and power-performance optimization on Qualcomm-based or similar complex embedded platforms, and who understands DSPs, co-processors, etc.

Responsibilities:

• Analyze and optimize Android system power consumption across active, idle, sleep, suspend, and deep-sleep states.
• Investigate Android Power Manager, wakelocks, suspend/resume behavior, CPU idle states, DVFS, thermal management, and battery usage patterns.
• Debug power-related issues spanning:
  • Android Framework
  • System Services
  • HAL Layers
  • Device Drivers
  • Linux Kernel
  • Firmware
• Analyze BatteryStats, dumpsys outputs, Perfetto traces, systrace data, kernel traces, logcat logs, and vendor diagnostics.
• Correlate Android software behavior with measured electrical power consumption.
• Identify and resolve excessive battery drain, wake-up events, thermal throttling, and performance bottlenecks

Basic qualifications

• Education: BS or MS in Computer Engineering, Computer Science, Electrical Engineering, Embedded Systems Engineering
• 8+ years of embedded systems experience.
• Deep understanding of Android Power Management.
• Strong Embedded Linux experience.
• Qualcomm SoC platform experience.
• Experience with PMICs and power architecture.
• Experience with Android Framework, HAL, Kernel, and Driver debugging.
• Strong C/C++ development skills.
• Experience with power measurement equipment.
• Experience with system-level power characterization.
• Experience debugging power, thermal, and battery issues.
• Experience with schematics and board-level investigations.
• Experience building structured validation and characterization plans

Preferred additional skills, personal traits and experience

Personal characteristics:

• Team player
• Proactiveness in collaboration and execution
• Flexibility to switch technical contexts
• Willingness to learn new methods/tools/processes
• Ability to prioritize, multitask, and take ownership
• Strong problem-solving and critical-thinking skills
• Strong communication and interpersonal skills

We offer

The annual salary range for this role is $130,000–$195,000.

The Annual Salary depends on various job-related factors, including professional background, training, work experience, location, business needs, and market demand. This range is subject to change and may be modified in the future.

Sigma Connectivity, Inc. also offers a comprehensive benefits package that includes the following:

• Paid Time off/Vacation and Paid Holidays
• 401(k)
• 401(k) matching
• Life insurance
• Flexible Spending Account (FSA): Healthcare and Dependent Care
• Health Savings Account (HSA)
• Paid Parental Leave
• Paid Bereavement Leave
• Employee Assistance Program
• Employee and Customer Referral Program
• For positions in California, long-term and short-term disability insurance