Irvine, CA · On-site
$131K - $173K/yr
Job Title- Senior Software Engineer Project Location - Irvine, CA (Onsite) Duration- 12+ months contract Visa- USC/ GC HM Notes: Previous subs only had experience at the application layer/app ...
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Irvine, CA · On-site
$131K - $173K/yr
Job Title- Senior Software Engineer Project Location - Irvine, CA (Onsite) Duration- 12+ months contract Visa- USC/ GC HM Notes: Previous subs only had experience at the application layer/app ...
Sunnyvale, CA · On-site
$140 - $210/hr
Job Title Senior Software Engineer What does a successful Sr. Software Engineer within Clover do? At Clover, a Fiserv company, we are dedicated to transforming financial services technology to ...
Sunnyvale, CA · On-site
$140 - $210/hr
Job Title Senior Software Engineer What does a successful Sr. Software Engineer within Clover do? At Clover, a Fiserv company, we are dedicated to transforming financial services technology to ...
San Mateo, CA · On-site
$139K - $183K/yr
Medical
Dental
Vision
Retirement
BigHat Biosciences is looking for a Senior Software Engineer to join our engineering team. This role is for experienced engineers ready to own a significant area of our platform as a subject-matter ...
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San Mateo, CA · On-site
$139K - $183K/yr
Medical
Dental
Vision
Retirement
BigHat Biosciences is looking for a Senior Software Engineer to join our engineering team. This role is for experienced engineers ready to own a significant area of our platform as a subject-matter ...
San Mateo, CA · On-site
$19K - $215K/mo
Medical
Dental
Vision
Retirement
BigHat Biosciences is looking for a Senior Software Engineer to join our engineering team. This role is for experienced engineers ready to own a significant area of our platform as a subject-matter ...
San Mateo, CA · On-site
$19K - $215K/mo
Medical
Dental
Vision
Retirement
BigHat Biosciences is looking for a Senior Software Engineer to join our engineering team. This role is for experienced engineers ready to own a significant area of our platform as a subject-matter ...
Glendale, CA · On-site
$148.70 - $199.40/hr
Senior Software Engineer Job ID 10150849 Location Glendale, California, United States / Bristol, Connecticut, United States Business Disney Entertainment and ESPN Product & Technology Job Summary ...
Glendale, CA · On-site
$148.70 - $199.40/hr
Senior Software Engineer Job ID 10150849 Location Glendale, California, United States / Bristol, Connecticut, United States Business Disney Entertainment and ESPN Product & Technology Job Summary ...
Glendale, CA · On-site
$148K - $199K/yr
Job Posting Title: Sr Software Engineer Req ID: 10135335 Disney Entertainment and ESPN Product & Technology Technology is at the heart of Disney's past, present, and future. Disney Entertainment and ...
Glendale, CA · On-site
$148K - $199K/yr
Job Posting Title: Sr Software Engineer Req ID: 10135335 Disney Entertainment and ESPN Product & Technology Technology is at the heart of Disney's past, present, and future. Disney Entertainment and ...
$128K - $169K/yr
SENIOR SOFTWARE ENGINEER Salary: $ 103,000 per year Minimum Education and Experience: Bachelor's Degree in Computer Systems Engineering, Computer Science, Software Engineering or Computer Engineering ...
$128K - $169K/yr
SENIOR SOFTWARE ENGINEER Salary: $ 103,000 per year Minimum Education and Experience: Bachelor's Degree in Computer Systems Engineering, Computer Science, Software Engineering or Computer Engineering ...
San Francisco, CA · On-site
$207K - $230K/yr
Medical
Dental
Vision
Retirement
Role We're hiring Senior Software Engineers across multiple engineering pillars at Whatnot - including Buyer Growth, Seller Growth, Trust & Risk, Discovery & Personalization, Search, Customer ...
San Francisco, CA · On-site
$207K - $230K/yr
Medical
Dental
Vision
Retirement
Role We're hiring Senior Software Engineers across multiple engineering pillars at Whatnot - including Buyer Growth, Seller Growth, Trust & Risk, Discovery & Personalization, Search, Customer ...
La Jolla, CA · On-site +1
$103K/yr
SENIOR SOFTWARE ENGINEER Salary: $ 103,000 per year Minimum Education and Experience: Bachelor's Degree in Computer Systems Engineering, Computer Science, Software Engineering or Computer Engineering ...
La Jolla, CA · On-site +1
$103K/yr
SENIOR SOFTWARE ENGINEER Salary: $ 103,000 per year Minimum Education and Experience: Bachelor's Degree in Computer Systems Engineering, Computer Science, Software Engineering or Computer Engineering ...
San Francisco, CA · On-site
$144K - $190K/yr
Medical
Dental
Vision
Retirement
Role We're hiring Senior Software Engineers across multiple engineering pillars at Whatnot - including Buyer Growth, Seller Growth, Trust & Risk, Discovery & Personalization, Search, Customer ...
San Francisco, CA · On-site
$144K - $190K/yr
Medical
Dental
Vision
Retirement
Role We're hiring Senior Software Engineers across multiple engineering pillars at Whatnot - including Buyer Growth, Seller Growth, Trust & Risk, Discovery & Personalization, Search, Customer ...
San Francisco, CA · On-site
$180K - $300K/yr
Senior Software Engineer @ Broccoli We're looking for a Senior Software Engineer to own critical parts of the product and drive execution across complex systems. You'll be responsible for turning ...
San Francisco, CA · On-site
$180K - $300K/yr
Senior Software Engineer @ Broccoli We're looking for a Senior Software Engineer to own critical parts of the product and drive execution across complex systems. You'll be responsible for turning ...
Cupertino, CA · On-site
$136.50 - $276.50/hr
Job Title Senior Software Engineer Job Location Onsite - HPE office. You are expected to primarily work from an HPE office. We are seeking a Senior Software Systems Engineer to join our team in ...
Cupertino, CA · On-site
$136.50 - $276.50/hr
Job Title Senior Software Engineer Job Location Onsite - HPE office. You are expected to primarily work from an HPE office. We are seeking a Senior Software Systems Engineer to join our team in ...
San Francisco, CA · On-site
$140 - $210/hr
Medical
Dental
Vision
Retirement
Role We're hiring Senior Software Engineers across multiple engineering pillars at Whatnot -- including Buyer Growth, Seller Growth, Trust & Risk, Discovery & Personalization, Search, Customer ...
San Francisco, CA · On-site
$140 - $210/hr
Medical
Dental
Vision
Retirement
Role We're hiring Senior Software Engineers across multiple engineering pillars at Whatnot -- including Buyer Growth, Seller Growth, Trust & Risk, Discovery & Personalization, Search, Customer ...
Los Angeles, CA · On-site
$140 - $210/hr
Medical
Dental
Vision
Retirement
Role We're hiring Senior Software Engineers across multiple engineering pillars at Whatnot -- including Buyer Growth, Seller Growth, Trust & Risk, Discovery & Personalization, Search, Customer ...
Los Angeles, CA · On-site
$140 - $210/hr
Medical
Dental
Vision
Retirement
Role We're hiring Senior Software Engineers across multiple engineering pillars at Whatnot -- including Buyer Growth, Seller Growth, Trust & Risk, Discovery & Personalization, Search, Customer ...
$130K - $171K/yr
SENIOR SOFTWARE ENGINEER Salary: $ 103,000 per year Minimum Education and Experience: Bachelor's Degree in Computer Systems Engineering, Computer Science, Software Engineering or Computer Engineering ...
$130K - $171K/yr
SENIOR SOFTWARE ENGINEER Salary: $ 103,000 per year Minimum Education and Experience: Bachelor's Degree in Computer Systems Engineering, Computer Science, Software Engineering or Computer Engineering ...
Palmdale, CA · On-site
$120K - $160K/yr
Medical
Dental
Vision
Retirement
PTO
Senior Software Engineer (Autonomy) Location : Fort Worth, TX or Palmdale, CA. Compensation: $120,000 - $160,000 + Bonus Eligible Security Clearance: Active Secret Clearance Require d Who we are:
Palmdale, CA · On-site
$120K - $160K/yr
Medical
Dental
Vision
Retirement
PTO
Senior Software Engineer (Autonomy) Location : Fort Worth, TX or Palmdale, CA. Compensation: $120,000 - $160,000 + Bonus Eligible Security Clearance: Active Secret Clearance Require d Who we are:
Costa Mesa, CA · On-site
$191 - $253/hr
Senior Software Engineer Build and scale Anduril's Forge internal tools for manufacturing and deployment efficiency Location: Costa Mesa, California, United States Compensation: $191,000 - 253,000 ...
New
Costa Mesa, CA · On-site
$191 - $253/hr
Senior Software Engineer Build and scale Anduril's Forge internal tools for manufacturing and deployment efficiency Location: Costa Mesa, California, United States Compensation: $191,000 - 253,000 ...
New
San Mateo, CA · On-site +1
$139K - $183K/yr
We're looking for a full stack Senior Software Engineer to join our growing engineering team. You'll work on all areas of the JetInsight product and help solve challenging problems involving route ...
San Mateo, CA · On-site +1
$139K - $183K/yr
We're looking for a full stack Senior Software Engineer to join our growing engineering team. You'll work on all areas of the JetInsight product and help solve challenging problems involving route ...
Los Angeles, CA · On-site
$190 - $230/hr
As a senior software engineer at Artifact, you'll own core systems in our AI-assisted cloud ecosystem. This will include high-performance diagramming, real-time collaboration, and physics-based ...
Los Angeles, CA · On-site
$190 - $230/hr
As a senior software engineer at Artifact, you'll own core systems in our AI-assisted cloud ecosystem. This will include high-performance diagramming, real-time collaboration, and physics-based ...
Burbank, CA · Remote
$80 - $120/hr
Future Engineers is looking for a Senior Software Engineer to contract on current and future development projects. We expect senior level expertise in the following areas: * Must be experienced in
Burbank, CA · Remote
$80 - $120/hr
Future Engineers is looking for a Senior Software Engineer to contract on current and future development projects. We expect senior level expertise in the following areas: * Must be experienced in
$74.5K - $85K
1% of jobs
$85K - $95.4K
2% of jobs
$95.4K - $105.9K
7% of jobs
$105.9K - $116.3K
9% of jobs
$120.7K is the 25th percentile. Wages below this are outliers.
$116.3K - $126.8K
13% of jobs
$126.8K - $137.2K
16% of jobs
The median wage is $138.6K / yr.
$137.2K - $147.7K
16% of jobs
$156.5K is the 75th percentile. Wages above this are outliers.
$147.7K - $158.1K
14% of jobs
$158.1K - $168.6K
11% of jobs
$168.6K - $179K
8% of jobs
$179K - $189.5K
3% of jobs
$74.5K
$141.4K
$189.5K
A senior software engineer designs, codes, tests, and maintains computer software. While these are your primary responsibilities as a senior software engineer, you may also have supervisory duties. These include overseeing a team of junior software engineers or developers. The senior software engineer title is sometimes used interchangeably with senior developer, and positions for both may share similar job duties and responsibilities. In general, software engineers are distinguished from developers in that software engineers apply engineering principles to software development.
| Aspect | Senior Software Engineer | Software Developer |
|---|---|---|
| Credentials | Bachelor's or higher in CS or related field; experience often 5+ years | Bachelor's in CS or related field; entry to mid-level experience |
| Work Environment | Designing complex systems, leading projects, mentoring | Writing code, developing features, debugging |
| Industry Usage | Used across tech companies, startups, enterprise | Common in software firms, startups, freelance work |
| Search & Comparison | Often compared for experience level, responsibilities | Compared for entry-level to mid-level roles |
The main difference between a Senior Software Engineer and a Software Developer lies in experience, responsibilities, and scope. Senior Software Engineers typically have more experience, lead projects, and mentor others, while Software Developers focus on coding and feature development. Both roles are essential in tech companies, but the Senior Software Engineer position involves higher-level planning and leadership.
The most popular types of Software Engineer jobs in California are:
For Senior Software Engineer jobs in California, the most frequently searched job titles are:
The top searched job categories for Senior Software Engineer jobs in California are:
Cities in California with the most Senior Software Engineer job openings:
For Senior Software Engineer jobs in CA, the most frequently searched job titles are:
$131K - $173K/yr
Contractor
Re-posted 5 hours ago
Job Title- Senior Software Engineer
Project Location – Irvine, CA (Onsite)
Duration- 12+ months contract
Visa- USC/ GC
HM Notes: Previous subs only had experience at the application layer/app developers. This is focused on impact assessments and patches of AOSP at the kernel level.
Position Summary: We are looking for a Senior Software Engineer with deep experience in Android OS and AOSP platform engineering. In this role, you will own and enhance a customized Android 5–based operating system used within a Class III medical device. You will customize and harden the OS, improve system performance, integrate hardware components, and ensure the platform meets strict medical‑device cybersecurity and regulatory requirements.
This role requires strong Android platform experience—not just app development—and includes work across OS
frameworks, kernel, BSP, HAL, and system‑level validation.
Key Responsibilities
• Update and modify Android OS (version 5) to address security issues and compliance needs.
• Customize and maintain an AOSP fork, including frameworks, system services, and configuration.
• Apply OS‑level patches and security settings aligned with FDA and EU cybersecurity guidance.
• Integrate BSPs, HALs, vendor patches, and hardware drivers with the Android platform.
• Perform board bring‑up (U‑Boot, device tree, kernel integration).
• Conduct low‑level debugging using UART, JTAG, and similar tools.
• Modify Linux kernel components and device drivers when required.
• Improve system performance, resource usage, and inter‑process communication (Binder/AIDL).
• Use system‑level profiling tools to identify and fix issues.
• Fix OS‑ and kernel‑level vulnerabilities and Reduce OS/kernel attack surfaces.
• Implement OTA update mechanisms.
• Support cybersecurity risk analysis and threat modeling.
• Perform OS‑level verification and validation following IEC 62304.
• Support risk management efforts aligned with ISO 14971.
• Participate in audits and reviews to maintain regulatory compliance.
• Work with app developers to ensure compatibility.
• Partner with cybersecurity, system engineering, and quality teams.
• Create and maintain architecture docs, test plans, and traceability matrices.
• Ensure documentation is complete and audit‑ready.
Required Qualifications
• Bachelor’s or Master’s degree in Computer Engineering, Computer Science, Electrical Engineering, or related field.
• 7+ years of software engineering experience.
• 3+ years working with Android OS / AOSP.
• Strong experience with AOSP builds, Android frameworks, and kernel modification.
• Solid understanding of Linux internals and embedded systems.
• Experience in regulated environments.
• Knowledge of IEC 62304, ISO 14971, and related standards.
• Familiarity with cybersecurity risk assessment and vulnerability remediation.
Preferred Qualifications
• Experience with legacy Android (Android 5).
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