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Sr Software Jobs in California (NOW HIRING)

Xoriant Corporation

Sr. Software Engineer - SOC

San Jose, CA · On-site

$143K - $189K/yr

Job Title: Sr. Software Engineer - SOC (318578) Job Location: San Jose, CA (100% remote for now but need to be onsite as soon as campus opens) Duration: 6+ months contract Client: Samsung Description:

Allegion

Sr. Software Engineer

Fontana, CA · On-site

$124K - $164K/yr

The Sr. Software Engineer will approach business problems with a mindset balancing delivery of objectives with the non-functional requirements of the overall platform. Primarily the Sr. Software ...

Allegion Canada Inc.

Sr. Software Engineer

Fontana, CA · On-site

$115 - $135/hr

The Sr. Software Engineer will approach business problems with a mindset balancing delivery of objectives with the non-functional requirements of the overall platform. Primarily the Sr. Software ...

Allegion

Sr. Software Engineer

Fontana, CA

$124K - $164K/yr

The Sr. Software Engineer will approach business problems with a mindset balancing delivery of objectives with the non-functional requirements of the overall platform. Primarily the Sr. Software ...

Prosum Inc.

Senior Software Engineer

Temecula, CA · On-site

$150K - $175K/yr

Senior Software Engineer / Technical Leader (Individual Contributor) Core Technologies: C/C++, Cryptography, Python, Linux/POSIX, Systems Programming Focus Areas: Secure software, cryptographic ...

NEOGOV

Senior Software Engineer

El Segundo, CA · On-site +1

$184K/yr

The Sr. Software Engineer provides software development to design and deployment of NEOGOV's Microsoft ASP.NET based software applications solutions within web-based SaaS product suite. What You Will ...

The Walt Disney Company

Sr Software Engineer

Glendale, CA · On-site

$135K - $181K/yr

Job Posting Title: Sr Software Engineer Req ID: 10149383 At Disney "We Power the Magic!" That's our motto at Disney Experiences (DX) Technology & Digital. Our team creates world-class immersive ...

WelbeHealth

Sr. Software Engineer

Los Angeles, CA · On-site

$132K - $174K/yr

The Senior Software Engineer is accountable for the development, quality assurance, implementation, and maintenance of solutions components that fulfill prioritized business use cases. This role ...

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Sr Software information

What does a senior software engineer do?

A Sr Software Engineer is responsible for designing, developing, and maintaining complex software applications. They often lead technical projects, mentor junior team members, and collaborate closely with stakeholders to ensure software meets business objectives. Their role typically involves writing high-quality code, reviewing code from peers, and making architectural decisions. Sr Software Engineers are also expected to stay updated with industry trends and best practices to improve software performance and reliability.

What are the key skills and qualifications needed to thrive as a senior software engineer?

To thrive as a Senior Software Engineer, you need strong proficiency in programming languages (such as Java, Python, or C#), software architecture, and a bachelor’s degree in computer science or a related field. Expertise with development frameworks, version control systems like Git, and cloud platforms such as AWS or Azure is commonly required, along with certifications like AWS Certified Solutions Architect. Leadership, problem-solving, and effective communication skills help you mentor junior engineers and collaborate across teams. These skills ensure the delivery of robust, scalable solutions and foster innovation within complex technical environments.

What are some common challenges faced by senior software engineers when leading project teams, and how can they effectively overcome them?

Senior Software Engineers often encounter challenges such as balancing hands-on coding with mentoring less experienced team members, managing project timelines, and ensuring code quality across the team. Effective communication and proactive planning are key to overcoming these hurdles. By fostering a collaborative environment, setting clear expectations, and leveraging agile methodologies, Senior Software Engineers can guide their teams to successful project delivery while supporting professional growth within the team.

What is the difference between Sr Software and Software Developer?

AspectSr SoftwareSoftware Developer
Required CredentialsBachelor's degree in CS or related field; 3+ years experience; sometimes certificationsBachelor's degree in CS or related field; 0-3 years experience; certifications optional
Work EnvironmentOften leads projects, mentors juniors, involved in architecture decisionsFocuses on coding, debugging, and implementing features under guidance
Employer & Industry UsageUsed across tech companies, startups, and enterprise firms for senior rolesCommon entry to mid-level role in software development teams

The main difference between a Sr Software and a Software Developer lies in experience, responsibilities, and leadership. Sr Software professionals typically have more experience, take on leadership roles, and influence project architecture, while Software Developers focus on coding and implementing features. Both roles require a strong foundation in programming, but the Sr Software position involves greater oversight and strategic input.

What are the most commonly searched types of Sr Software jobs in California?

The most popular types of Sr Software jobs in California are:

What cities in California are hiring for Sr Software jobs?

Cities in California with the most Sr Software job openings:

Sr Software jobs near you
Infographic showing various Sr Software job openings in California as of August 2026, with employment types broken down into 82% Full Time, 13% Part Time, and 5% Contract. Highlights an 85% Physical, 4% Hybrid, and 11% Remote job distribution.

Sr. Software Engineer

Lynx Software Technologies

Sunnyvale, CA • On-site

$150K - $200K/yr

Full-time

Medical, Dental, Vision, Retirement, PTO

Posted 3 days ago

New

Job description

Job Title: Sr. Software Engineer
Location: Onsite - Sunnyvale, CA.
Compensation: $150,000 - $200,000 + Bonus Eligible
Security Clearance: Active Secret Clearance Required
This position requires full time onsite in Sunnyvale, CA.
Who we are: Lynx delivers modular, open standards-based software that transforms how high-assurance, mission-critical edge systems are built, deployed, and maintained. Our secure edge computing solutions enable innovation and operational excellence in the world's most demanding environments, from aerospace and defense to commercial and industrial systems. We partner across industries including automotive, medical, and critical infrastructure to deliver tailored solutions aligned with each customer's mission and operational requirements. Our key products and services are:
  • MOSA.ic: LYNX MOSA.ic™ is a modular software framework and architecture purpose-built for mission-critical edge computing. Based on the Modular Open Systems Approach (MOSA), it provides a flexible foundation for building secure, scalable, and certifiable edge systems.
  • LYNX MOSA.ic.AI: LYNX MOSA.ic.AI is a unified CPU and GPU software platform that enables deterministic, certifiable deployment of AI and advanced workloads in mission-critical edge systems. It brings control, performance, and lifecycle governance together, allowing AI to operate predictably within safety-critical environments without compromising certification or system integrity.
  • CoreSuite 2.0: CoreSuite 2.0 is Lynx's safety-critical GPU for graphics enablement framework designed for mission-critical edge computing systems. It provides hardware-accelerated graphics, visualization, and video processing capabilities that can be certified for high-assurance systems.
  • Services: Lynx Services is Lynx's professional services organization that helps customers design, integrate, certify, deploy, and maintain safety- and security-critical systems. It supports industries like aerospace, defense, automotive, and industrial computing through consulting, engineering, integration, and lifecycle support, reducing development risk and accelerating certification in standards-driven, mission-critical environment.

Company Overview
Founded in 2004 with locations in Atlanta, GA, Fort Worth, TX, Denver, CO, & Huntsville, AL, Thompson Software Solutions (TSS) is a mission-driven aerospace and defense software and systems engineering company supporting the U.S. military, defense primes, and commercial space partners. We specialize in the development, integration, test, and deployment of safety & mission-critical software systems that power next-generation aircraft, defense platforms, and space technologies. Our team understands what it takes to modernize complex embedded systems while maintaining the rigor, compliance, and reliability required for mission and safety-critical environments.
As a defense-focused company of highly skilled and dedicated engineers, we take pride in solving complex technical challenges that directly impact national security and operational readiness. We partner closely with customers across the military aviation and space domains to deliver resilient, future-ready solutions with portability, sustainability, and long-term mission success in mind.
Description
Thompson Software Solutions is seeking a senior-level Sr Software Engineer who is ready to work with a talented team to provide innovative solutions for tomorrow's problems. This position requires a software engineer to use a wide application of technical principles, theories, and concepts in the software field to develop, integrate, and test software products. The successful candidate will be a member of a high-performing multi-site team and must be self-motivated with a strong work ethic, time-management, and interpersonal skills. In this role, you will work independently at times on projects, at other times will be in a collaborative team environment with other software engineers, as well as other program development and deployment teams.
Selected applicants will be subjected to a government security investigation and must meet eligibility requirements for access to classified information and must maintain eligibility for continued access to classified information throughout their employment as required by the job.
Basic Requirements
  • Bachelor's degree in STEM discipline
  • 5+ years of C/C++ software Development experience
  • Experience with Digital Simulation Development and integration
  • Experience with Embedded Software Development
  • Experience with I&T integration and testing.
  • Experience with GITLAB.
  • Experience with Full Software Development Cycle
  • Experience with (FSW) Flight software engineering
  • Proficient with Linux and Windows development environments
  • Experience with compilers, debuggers, static analysis tools, and dynamics analysis tool
  • Ability to professionally communicate project status and collaborate on technical solutions with clients and peers
  • Active Secret Clearance required
  • Ability to work onsite 100%
  • Perform additional job duties as assigned.

Preferred / Additional Skills
  • Proficient with Atlassian Tools (Confluence, JIRA, Bitbucket, etc.)
  • Proficient in Python development
  • Familiarity with Model-Based System Engineering (MBSE) concepts and tools (Cameo, AADL)
  • Experience with Navigation, Guidance and Control Implementation
  • Experience with Signal Processing Implementation
  • Experience developing Embedded Flight Software
  • Experience communicating and documenting complex technical designs
  • Ability to work in a collaborative and team-based environment
  • Excellent written and verbal communication and presentation skills

Sound Exciting? Get in touch today! We have very robust benefits including:
  • Low-cost Medical / Dental / Vision coverage options
  • 401K with generous employer match
  • Responsible Paid Time Off + Paid Holidays
  • Remote work opportunities based on role
  • Employee Assistance Program (EAP)
  • Career growth and professional development opportunities

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status.

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