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Senior Software Engineer Jobs in Temecula, CA (NOW HIRING)

Inversion

Senior Flight Software Engineer

Vista, CA · On-site

$139K - $201K/yr

As a Senior Flight Software Engineer at Inversion, you will have an instrumental impact on the design, functionality, and performance of our next-generation reentry vehicles. You will own a ...

HME

Senior Software QA Engineer

Carlsbad, CA · On-site

$94K - $126K/yr

HME is recruiting for a Senior Software QA Engineer - Cloud . In this role, under minimal supervision, support the testing, correction/modification, and quality assurance of products under ...

Prosum Inc.

Junior Software Engineer

Temecula, CA · On-site

$115K - $120K/yr

Junior Software Engineer Cryptography, Systems & Secure Infrastructure Role Type: Junior Software Engineer (Hands-On Growth Role) Core Technologies: C/C++, Python, Linux, Containers, Security ...

Inversion

Senior Applied AI Engineer

Vista, CA · On-site

$139K - $201K/yr

As a Senior Applied AI Engineer at Inversion, you will define and build the company's internal AI ... You will be a key member of the Internal Software Tools team, reporting directly to the Director of ...

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All JobsSoftware Engineer JobsSenior Software Engineer JobsSenior Software Engineer Jobs in Temecula, CA

Senior Software Engineer information

See Temecula, CA salary details

$75K

$142.4K

$190.8K

How much do senior software engineer jobs pay per year?

As of Sep 3, 2026, the average yearly pay for senior software engineer in Temecula, CA is $142,361.00, according to ZipRecruiter salary data. Most workers in this role earn between $121,700.00 and $160,400.00 per year, depending on experience, location, and employer.

What is a senior software engineer?

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.

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

To thrive as a Senior Software Engineer, you need advanced programming skills, deep understanding of software architecture, and several years of experience in software development, often supported by a relevant degree. Familiarity with tools like Git, CI/CD pipelines, cloud platforms, and expertise in technologies such as Java, Python, or JavaScript are typically required. Leadership, problem-solving, and effective communication are crucial soft skills for mentoring teams and collaborating across departments. These skills ensure the delivery of robust, scalable solutions and drive successful project outcomes in complex technical environments.

What are some common challenges senior software engineers face when mentoring junior team members?

Senior Software Engineers often mentor junior colleagues, which can be incredibly rewarding but also presents challenges. Balancing mentorship with project deadlines can be demanding, as it requires strong time management and communication skills. Additionally, adapting explanations to different learning styles and levels of experience can be tricky. However, effective mentorship helps build a stronger team and can lead to enhanced leadership opportunities for the senior engineer.

What is the difference between Senior Software Engineer vs Software Developer?

AspectSenior Software EngineerSoftware Developer
CredentialsBachelor's or higher in CS or related field; experience often 5+ yearsBachelor's in CS or related field; entry to mid-level experience
Work EnvironmentDesigning complex systems, leading projects, mentoringWriting code, developing features, debugging
Industry UsageUsed across tech companies, startups, enterpriseCommon in software firms, startups, freelance work
Search & ComparisonOften compared for experience level, responsibilitiesCompared 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.

What does a senior software engineer do?

A senior software engineer designs, develops, and maintains software applications, often leading projects and mentoring junior team members. They analyze requirements, write code, perform testing, and collaborate with cross-functional teams to ensure quality and efficiency. Proficiency in programming languages, problem-solving skills, and experience with development tools are essential for this role.
More about Senior Software Engineer jobs

What are the most commonly searched types of Software Engineer jobs in Temecula, CA?

The most popular types of Software Engineer jobs in Temecula, CA are:

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For Senior Software Engineer jobs in Temecula, CA, the most frequently searched job titles are:

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Cities near Temecula, CA with the most Senior Software Engineer job openings:

Senior Software Engineer jobs near you
Infographic showing various Senior Software Engineer job openings in Temecula, CA as of August 2026, with employment types broken down into 81% Full Time, 16% Part Time, and 3% Contract. Highlights an 88% Physical, 3% Hybrid, and 9% Remote job distribution, with an average salary of $142,361 per year, or $68.4 per hour.

Senior Flight Software Engineer

Inversion

Vista, CA • On-site

$139K - $201K/yr

Full-time

Re-posted 4 days ago

Job description

Turning Space into a Transportation Layer for Earth
Who We Are:
Inversion builds advanced reentry systems to deliver next-generation capabilities from space.
Our mission is to make Earth radically more accessible by turning Low-Earth Orbit into an on-demand logistics domain. We see space not as a destination, but as a platform - one that unlocks unprecedented speed and global reach.
Our spacecraft are designed to deliver payloads anywhere on Earth in under an hour, operating through extreme reentry conditions and landing with high precision. These systems open the door to new ways of testing, delivering, and operating at hypersonic speeds.
Inherently dual-use, our technology is built to meet urgent national security needs while laying the groundwork for future commercial applications. Backed by leading investors including Y Combinator, Spark Capital, and Lockheed Martin Ventures, and working with partners such as the U.S. Space Force and NASA, Inversion is pushing the boundaries of what's possible in space-based defense and logistics.
What You'll Do:
As a Senior Flight Software Engineer at Inversion, you will have an instrumental impact on the design, functionality, and performance of our next-generation reentry vehicles. You will own a substantial aspect of the flight software stack that enables our spacecraft to complete its mission of extended operation in space, eventually returning on Earth to be recovered. Your impact will encompass all aspects of fight software, including commanding, telemetry, and implementation of control algorithms running on custom hardware that flies the world's first reentry vehicle designed for turning space into a viable transportation layer for Earth. You will be a key member of the Processing Core team, reporting directly to the Director of Engineer, Processing Core.
This role is all-encompassing, and includes the complete lifecycle of the vehicle's software including:
  • Owning critical software components for a new vehicle, from initial concept though design, implementation, testing, and deployment
  • Writing and testing software for spacecraft, including drivers, networking, fault management, and attitude control interfaces
  • Assisting in creating and executing tests, including HITL (hardware in the loop) and HOOTL/SITL (software in the loop) testing, integration testing, and unit testing
  • Assisting with the growth and development of the software organization, including conducting interviews and mentoring/onboarding other engineers and interns

We're a mission-driven team passionate about pushing the limits of space exploration. While there may be moments when the excitement calls for extended hours or weekend work, we prioritize creating an environment where our engineers feel inspired, supported, and constantly challenged to grow.
Required Qualifications:
  • Must have the ability to obtain and maintain a U.S. government Secret/Top Secret security clearance.
  • 5+ years of software development experience with a Bachelor's degree or equivalent experience
  • Experience working in a systems level language like Rust, C++, or C
  • Experience working in a Linux development environment
  • Experience with tools and processes related to software development such as version control, code reviews, issue tracking, and CI/CD environments.
  • An innovative and optimistic approach to your work in a dynamic and uncertain environment
  • Position may require occasional extended hours and/or weekend work.
  • Our office headquarters is located in Playa Vista, CA. All jobs require you to work onsite unless otherwise stated in the job description.

Desired Qualifications:
  • Experience with safety critical systems or other fault tolerant systems
  • Familiarity with utilizing Python or similar language for testing and tooling
  • Hands-on experience developing, testing, and/or operating spacecraft, flight hardware, HITL (hardware-in-the-loop), flat-sats, and avionics systems
  • Experience collaborating with GNC engineers and developing interfaces to sensors (IMUs, GPSs, Star Trackers, etc.)
  • Experience with networking concepts (TCP, UDP, Ethernet, etc.)
  • Experience with low-level communication protocols (CANbus, UART, I2C, RS422/485, etc.)
  • Familiarity with the Linux kernel and interfacing with it (kernel modules, device trees, etc.). Extra points for embedded Linux experience (Yocto, Buildroot, or similar)
  • Prior experience working in startups and small independent teams

Our office headquarters is located in Playa Vista, CA. This position requires in office presence.
The California annual base salary for this role is currently $139,000 - $201,000. Pay Grades are determined by role, level, location, and alignment with market data. Individual pay will be determined on a case-by-case basis and may vary based on the following considerations: interviews and an assessment of several factors that are unique to each candidate, job-related skills, relevant education and experience, certifications, abilities of the candidate and internal equity.
ITAR Compliance:
To conform to U.S. Government space technology export regulations, including the International Traffic in Arms Regulations (ITAR) you must be a U.S. citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State. Learn more about the ITAR here.
Equal Employment Opportunity:
Inversion provides equal employment opportunities to all employees and applicants without regard to race, color, religion, age, sex, gender identity, sexual orientation, national origin, veteran status, or disability.
Inversion collects and processes personal data in accordance with applicable data protection laws. If you are a US Job Applicant see the CCPA Privacy Policy Noticefor further details.

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