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Senior Software Tester Jobs in California (NOW HIRING)

Aveva

Senior Software Engineer

Irvine, CA · On-site

$131K - $173K/yr

Senior Software Engineer Location: Irvine, CA Employment Type: Full-Time/ Hybrid Senior Software ... Develop CI/CD pipelines and automated testing frameworks * Collaborate with cross-functional teams ...

GBIT Inc

Sr Software Engineer

Culver City, CA · On-site

$134K - $176K/yr

Job Title :Sr Software Engineer Location : Culvar City, CA Duration : 6+ Month Responsibilities ... software testing strategies and unit and automated test development • Passion for solving ...

ETAP

Senior Software Engineer

Irvine, CA · On-site

$131K - $173K/yr

Senior Software Engineer Location: Irvine, CA Employment Type: Full-Time/ Hybrid Senior Software ... Develop CI/CD pipelines and automated testing frameworks * Collaborate with cross-functional teams ...

BigHat Biosciences

Senior Software Engineer

San Mateo, CA · On-site

$140K - $184K/yr

Senior Software Engineer Department: Engineering Employment Type: Full Time Location: San Mateo, CA ... Lead projects end-to-end, from PRD through implementation, testing, release, and validation against ...

idexcel

Senior Software Engineer

Irvine, CA

$131K - $173K/yr

Summary: Sr. software engineer with experience of at least 5 years in developing software ... testing, and release. 5. Ability to investigate, troubleshoot and identify solutions to issues ...

Hired Recruiters

Senior Software Engineer

San Francisco, CA · On-site +1

$144K - $190K/yr

The Senior Software Engineer is responsible for writing, testing, and deploying code in a fast moving environment. You will be expected to take ownership of the product and bring features from ...

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 ... Own the full software development lifecycle, including analysis, design, coding, testing, debugging ...

SpaceX

Sr. Software Engineer, C++ (Dragon)

Hawthorne, CA · On-site

... testing milestones • Support mission operations as a flight software specialist • Roll out new software changes to the vehicle fleet • Occasional travel to launch sites and customer sites for ...

Parallel Systems

Senior Software Engineer

Los Angeles, CA

$132K - $174K/yr

Senior Software Engineer Parallel Systems is seeking a Senior Software Engineer to design, build ... testing, and deployment. * After 90 Days: You have implemented and tested major features in ...

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All JobsSoftware Tester JobsSenior Software Tester JobsSenior Software Tester Jobs in California

Senior Software Tester information

See California salary details

$29

$52

$74

How much do senior software tester jobs pay per hour?

As of Aug 7, 2026, the average hourly pay for senior software tester in California is $52.48, according to ZipRecruiter salary data. Most workers in this role earn between $46.97 and $59.81 per hour, depending on experience, location, and employer.

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

To thrive as a Senior Software Tester, you need expertise in software testing methodologies, test case design, and defect management, typically supported by a degree in computer science or a related field and several years of experience. Familiarity with automation tools (such as Selenium or JUnit), bug tracking systems, and relevant certifications like ISTQB is highly valued. Attention to detail, critical thinking, and strong communication skills set top performers apart in this role. These competencies ensure that software products are reliable, high-quality, and meet user requirements before release.

What is the difference between Senior Software Tester vs Software Tester?

AspectSenior Software TesterSoftware Tester
CredentialsTypically requires 3+ years experience, certifications like ISTQBEntry-level or 1-2 years experience, may have ISTQB or similar
Work EnvironmentLeads testing projects, mentors junior testersPerforms testing tasks under supervision
ResponsibilitiesDesigns test plans, reviews testing processesExecutes test cases, reports bugs

The main difference between a Senior Software Tester and a Software Tester lies in experience, responsibilities, and leadership. Senior testers often lead testing efforts and mentor others, while software testers focus on executing tests. Both roles are essential in software quality assurance and share similar credentials, but the senior role involves more strategic oversight.

What is a senior software tester?

Senior Software Testers are experienced professionals responsible for designing, implementing, and executing tests to ensure the quality and functionality of software applications. They lead testing efforts, mentor junior testers, and collaborate closely with developers to identify and resolve issues. Senior Software Testers also help define testing strategies, develop automated test scripts, and contribute to continuous improvement in software development processes. Their expertise helps ensure that released software meets both technical requirements and user expectations.

What are some common challenges senior software testers face when working on large-scale projects?

Senior Software Testers often encounter challenges such as managing complex test environments, coordinating with cross-functional teams, and ensuring thorough test coverage across multiple modules. Balancing tight project deadlines while maintaining high-quality standards can also be demanding. Additionally, adapting testing strategies to accommodate evolving requirements and integrating automated testing tools effectively are frequent hurdles in large-scale projects.
What are the most commonly searched types of Software Tester jobs in California? The most popular types of Software Tester jobs in California are:
What are popular job titles related to Senior Software Tester jobs in California? For Senior Software Tester jobs in California, the most frequently searched job titles are:
What job categories do people searching Senior Software Tester jobs in California look for? The top searched job categories for Senior Software Tester jobs in California are:
What cities in California are hiring for Senior Software Tester jobs? Cities in California with the most Senior Software Tester job openings:
What are popular job titles related to Senior Software Tester jobs in CA? For Senior Software Tester jobs in CA, the most frequently searched job titles are:
Senior Software Tester jobs near you
Infographic showing various Senior Software Tester job openings in California as of July 2026, with employment types broken down into 87% Full Time, 10% Part Time, and 3% Contract. Highlights an 87% Physical, 5% Hybrid, and 8% Remote job distribution, with an average salary of $109,162 per year, or $52.5 per hour.

Senior Software Engineer

Aveva

Irvine, CA • On-site

$131K - $173K/yr

Full-time

Re-posted 24 days ago

Job description

ETAP empowers customers to make informed decisions throughout the life cycle of their projects with innovative software solutions for electrical systems. By applying ETAP solutions, customers experience continuous intelligence during design and engineering and into operations and maintenance using a unified electrical digital twin platform. ETAP supports customers in their digital transformation and sustainable energy transitions for a green and smart future, helping them to prioritize safety, maximize reliability, and stay resilient.

Our employees' passion for excellence, innovation, and customer satisfaction is our most-prized resource. If you share that passion - and want to be part of a company that leads the energy transition towards a cleaner and more resilient world for future generations - we invite you to join us!

ETAP is committed to creating a diverse work environment and is proud to be an Equal Opportunity Employer.

Job Title:Senior Software Engineer

Location:Irvine, CA

Employment Type: Full-Time/ Hybrid

Senior Software Engineer - Microgrid Controller (MGC)

We are seeking a Senior Software Engineer to lead the design and development of our Microgrid Controller (MGC) platform. This role sits at the intersection of systems architecture, real-time controls, Linux engineering, and distributed energy systems, and plays a key role in advancing how modern microgrids are monitored and controlled globally.

You will work on improving system reliability, performance, security, and scalability across the MGC platform, including Linux (RHEL 9.x) environments, APIs, networking, databases, and automated testing frameworks.

Key Responsibilities
  • Design and enhance the MGC Linux (RHEL 9.x) platform for high reliability and performance
  • Develop APIs and firmware-level REST integrations for scalable system deployment
  • Work with Docker-based containerization and deployment workflows
  • Integrate and support industrial communication systems and protocols
  • Optimize network configuration including routing, firewalls, and security
  • Build and maintain MongoDB and SQL-based data systems for telemetry and persistence
  • Implement cybersecurity and system hardening across components
  • Develop CI/CD pipelines and automated testing frameworks
  • Collaborate with cross-functional teams and mentor junior engineers
Required Qualifications
  • 7+ years of software engineering experience
  • Strong experience in C#, .NET Framework, and WPF
  • Solid Linux (RHEL preferred) system integration experience
  • Experience with REST APIs, Docker, and MongoDB
  • Background in CI/CD, system integration, and automation testing
Preferred
  • Python
  • Experience with industrial protocols (Modbus, DNP3, IEC 61850)
  • Exposure to distributed control systems or embedded/Linux environments
  • Knowledge of cybersecurity in critical infrastructure systems
  • Strong leadership and mentoring experience
What We Offer
  • Opportunity to shape next-generation microgrid technology
  • Global, innovation-driven engineering environment

Salary Range: 113,500.00 - 170,500.00 USD Annual

This pay range represents the minimum and maximum compensation that the position offers, and final compensation can vary within the range depending on work location, job experience, skills, and relevant educational attainment and/or training.

ETAP requires all successful applicants to undergo and pass a comprehensive background check before they start employment. Background checks will be conducted in accordance with local laws and may, subject to those laws, include proof of educational attainment, employment history verification, proof of work authorization, criminal records, identity verification, credit check. Certain positions dealing with sensitive and/or third party personal data may involve additional background check criteria.

ETAP is an Equal Opportunity Employer. We are committed to being an exemplary employer with an inclusive culture, developing a workplace environment where all our employees are treated with dignity and respect. We value diversity and the expertise that people from different backgrounds bring to our business.

Come and join ETAP to create the transformative technology that enables our customers to engineer a better world.

Apply