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Software Engineer Onsite Jobs in California (NOW HIRING)

Denken Solutions, Inc.

Software Engineer

Foster City, CA · On-site

$100.70/hr

Onsite in Foster City, CA | 5 days in office. * The Autonomy Hardware Systems V&V team is seeking a contract Embedded Software Engineer to develop embedded software and tooling for safety-critical ...

Ukund Inc

Embedded Software Engineer || W2

Foster City, CA · On-site

$153K - $201K/yr

Embedded Software Engineer Onsite in Foster City, CA | 5 days in office W2 ,1099 only The Autonomy Hardware Systems V&V team is seeking a contract Embedded Software Engineer to develop embedded ...

Gamma Scientific

Software Engineer

San Diego, CA · On-site

San Diego, CA (Onsite) Department: Software Engineering Reports To: Software Engineering Manager Position Summary Gamma Scientific is seeking a talented and motivated Mid-Level Software Engineer to ...

Amiri Recruiting

AI Support Engineer

San Francisco, CA · On-site

IT Support Engineer (Onsite Bay Area & NYC) Skills Relevant Skills and Experience * 2+ years working in a technical role * Bachelor's or higher degree in Computer Science, Software Engineering, or ...

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Software Engineer Onsite information

What is the difference between Software Engineer Onsite vs Software Engineer Remote?

AspectSoftware Engineer OnsiteSoftware Engineer Remote
Work EnvironmentWorks at company premises, collaborating face-to-face with teamWorks from any location, often from home or co-working spaces
Required CredentialsBachelor's degree in CS or related field, relevant coding skillsSame as onsite: degree and coding skills, with added emphasis on self-management
Industry UsageCommon in companies valuing direct collaboration and team presenceGrowing in tech companies prioritizing flexibility and remote work policies

Both roles require similar technical skills and educational backgrounds. The main difference lies in the work environment, with onsite roles emphasizing physical presence and remote roles offering location flexibility. Your choice depends on personal preference and company policies.

What does a software engineer onsite do?

A Software Engineer Onsite is responsible for designing, developing, testing, and maintaining software applications while working physically at the company's office or client location. They collaborate closely with other engineers, product managers, and stakeholders to deliver high-quality solutions. Being onsite often allows for more direct communication, quicker troubleshooting, and greater involvement in team activities and company culture. This role may also require attending in-person meetings and participating in onsite deployments or support.

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

To thrive as a Software Engineer Onsite, you need strong programming skills, proficiency in software development methodologies, and typically a degree in computer science or a related field. Familiarity with version control systems like Git, integrated development environments (IDEs), and knowledge of specific programming languages or frameworks are essential, and certifications like AWS Certified Developer can be advantageous. Exceptional problem-solving abilities, teamwork, and effective communication help you collaborate with colleagues and stakeholders in an onsite environment. These skills ensure the delivery of robust, maintainable software solutions while facilitating efficient workflow and innovation within the team.

How does working onsite as a software engineer typically impact collaboration and project workflows?

Working onsite as a Software Engineer often enhances direct communication and collaboration with team members, project managers, and stakeholders. You'll likely participate in daily stand-ups, code reviews, and design sessions in person, which can streamline decision-making and problem-solving. Additionally, being onsite allows for quicker feedback and fosters a stronger sense of team cohesion. This environment can be particularly beneficial for complex projects requiring frequent collaboration and iterative development.
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What job categories do people searching Software Engineer Onsite jobs in California look for? The top searched job categories for Software Engineer Onsite jobs in California are:
What cities in California are hiring for Software Engineer Onsite jobs? Cities in California with the most Software Engineer Onsite job openings:
Software Engineer Onsite jobs near you
Infographic showing various Software Engineer Onsite job openings in California as of August 2026, with employment types broken down into 1% Internship, 85% Full Time, 9% Part Time, 2% Temporary, and 3% Contract. Highlights an 87% Physical, 4% Hybrid, and 9% Remote job distribution.

Senior Software Engineer, Onsite

Raytheon Technologies

Fullerton, CA • On-site

$127K - $168K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

This job post has expired today. Applications are no longer accepted.

Job description

Date Posted:
2026-08-05
Country:
United States of America
Location:
US-CA-FULLERTON-675 ~ 1801 Hughes Dr ~ BLDG 675
Position Role Type:
Onsite
U.S. Citizen, U.S. Person, or Immigration Status Requirements:
The ability to obtain and maintain a U.S. government issued security clearance is required. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance
Security Clearance Type:
DoD Clearance: Secret
Security Clearance Status:
Active and existing security clearance required after day 1
At Raytheon, the foundation of everything we do is rooted in our values and a higher calling - to help our nation and allies defend freedoms and deter aggression. We bring the strength of more than 100 years of experience and renowned engineering expertise to meet the needs of today's mission and stay ahead of tomorrow's threat. Our team solves tough, meaningful problems that create a safer, more secure world.
Raytheon Software Engineering is looking for a Senior Software Engineer to join the Air C2 (Command and Control) and Battlefield Sensors software department in Fullerton, California.
  • Our Culture | RTX Careers

What You Will Do:
The Air C2 SW product teams develop Command and Control mission critical applications and leverage DevSecOps processes along with best industry practices to meet the threats of today and tomorrow.
  • Perform as a key contributor working as part of a high performing Software Product Team.
  • Participate in software C2 software application design, implementation, test and maintenance.
  • Collaborate in a cross-functional / agile environment
  • Travel up to 25% including short term business trips (between 2 weeks to 2 months, depending on the circumstances) to Taiwan to interface with our customer and other RTX colleagues.

Qualifications you must have:
  • Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 5 years of prior relevant experience
  • Experience in Java, Python or C++ programming languages.
  • Experience with Agile development methodologies
  • Experience with Red Hat Linux
  • Able to obtain and maintain a U.S. government issued security clearance as and when required. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.

Qualifications We Prefer:
  • Strong communication and collaboration skills, ability to work effectively within large, cross-functional teams.
  • Experience in software engineering in the Command & Control domain
  • Experience with interface development including tactical data links, radar/civilian data sources and weapons control.
  • Experience with Java UI frameworks such as Swing or JavaFX
  • Experience with component-based architecture and microservices.
  • Experience working with a range of infrastructure and platforms
  • Experience with one or more scripting languages
  • Experience with Ada
  • Experience with DOORS
  • Experience with the following toolchain products: Bitbucket, Jenkins, Artifactory, Coverity, Collaborator and JIRA

What We Offer:
  • Our values drive our actions, behaviors, and performance with a vision for a safer, more connected world. At RTX we value: Trust, Respect, Accountability, Collaboration, and Innovation.

Learn More & Apply Now!
Please consider the following role type definition as you apply for this role.
  • Onsite: Employees who are working in Onsite roles will work primarily onsite. This includes all production and maintenance employees, as they are essential to the development of our products.
  • This position requires a security clearance. DCSA Consolidated Adjudication Services (DCSA , an agency of the Department of Defense, handles and adjudicates the security clearance process. More information about Security Clearances can be found on the US Department of State government website here: https://www.state.gov/m/ds/clearances/c10978.htm

As part of our commitment to maintaining a secure hiring process, candidates may be asked to attend select steps of the interview process in-person at one of our office locations, regardless of whether the role is designated as on-site, hybrid or remote.
The salary range for this role is 95,500 USD - 181,700 USD. The salary range provided is a good faith estimate representative of all experience levels. RTX considers several factors when extending an offer, including but not limited to, the role, function and associated responsibilities, a candidate's work experience, location, education/training, and key skills.
Hired applicants may be eligible for benefits, including but not limited to, medical, dental, vision, life insurance, short-term disability, long-term disability, 401(k) match, flexible spending accounts, flexible work schedules, employee assistance program, Employee Scholar Program, parental leave, paid time off, and holidays. Specific benefits are dependent upon the specific business unit as well as whether or not the position is covered by a collective-bargaining agreement.
Hired applicants may be eligible for annual short-term and/or long-term incentive compensation programs depending on the level of the position and whether or not it is covered by a collective-bargaining agreement. Payments under these annual programs are not guaranteed and are dependent upon a variety of factors including, but not limited to, individual performance, business unit performance, and/or the company's performance.
This role is a U.S.-based role. If the successful candidate resides in a U.S. territory, the appropriate pay structure and benefits will apply.
RTX anticipates the application window closing approximately 40 days from the date the notice was posted. However, factors such as candidate flow and business necessity may require RTX to shorten or extend the application window.
RTX is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability or veteran status, or any other applicable state or federal protected class. RTX provides affirmative action in employment for qualified Individuals with a Disability and Protected Veterans in compliance with Section 503 of the Rehabilitation Act and the Vietnam Era Veterans' Readjustment Assistance Act.
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