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Senior Software Tester Jobs in California (NOW HIRING)

Britech Group, Inc.

Sr Embedded Software Engineer

Vista, CA · On-site

$126K - $166K/yr

Senior Software Engineer Position Summary This position leads the analysis, design, development ... testing, deployment, and production support. · Design, develop, review, and optimize high-quality ...

SpaceX

Sr. Software Engineer, C++ (Dragon)

Hawthorne, CA

$165K - $230K/yr

SR. SOFTWARE ENGINEER, C++ (DRAGON) As a Sr. Software Engineer on the Dragon team, you will develop ... Plan and execute vehicle testing milestones * Support mission operations as a flight software ...

SpaceX

Sr. Software Engineer, C++ (Dragon)

Hawthorne, CA · On-site

$165K - $230K/yr

... SR. SOFTWARE ENGINEER, C++ (DRAGON) As a Sr. Software Engineer on the Dragon team, you will ... Plan and execute vehicle testing milestones * Support mission operations as a flight software ...

GBIT Inc

Sr Software Engineer

Culver City, CA

$134K - $176K/yr

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

Prosum Inc.

Senior Software Engineer

Temecula, CA · On-site

$150K - $175K/yr

Senior Software Engineer / Technical Leader (Individual Contributor) Core Technologies: C/C ... Develop Python-based automation, testing frameworks, developer tools, and maintenance utilities.

Alphatec Spine

Senior Software Engineer

Carlsbad, CA · On-site

$127K - $167K/yr

The Senior Software Engineer, Alpha Informatix develops client-facing and backend components for ... Testing and validation: Perform integration and system-level testing for software applications and ...

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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.
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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 Tester

Aziro Technologies LLC

San Jose, CA • On-site

Other

Posted 16 days ago

Job description

The selected candidate will become part of the company''s core engineering team and will have a direct impact on product quality, architecture, scalability, and AI validation efforts.

 We are specifically looking for candidates who have:

  • Worked in startup environments.
  • Experience building or scaling products from 0-to-1 or early-stage growth phases.
  • Thrived in fast-paced engineering cultures where ownership and accountability are critical.
  • Experience wearing multiple hats and partnering closely with Product and Engineering teams.


Mandatory Skills

Please focus on candidates with strong hands-on experience in:


QA Engineering

  • Manual Testing
  • Test Strategy & Test Planning
  • End-to-End Product Validation
  • Regression & Functional Testing

Automation

  • Building automation frameworks from scratch
  • API Automation
  • UI Automation
  • Backend Service Testing
  • CI/CD integration

Distributed Systems

  • Microservices testing
  • Kubernetes environments
  • Distributed databases
  • Data consistency validation
  • Race condition identification
  • High-scale application testing

Programming

Strong coding skills in one or more of:

  • Golang
  • Python
  • Java

Cloud & Infrastructure

  • Google Cloud Platform preferred
  • Kubernetes
  • Containerized environments


AI & Data Validation (High Priority)

Candidates should have exposure to:

  • AI/LLM feature validation
  • Testing AI-generated outputs
  • Data integrity validation
  • Data pipeline testing
  • AI observability and quality assurance


Preferred Experience

  • Salesforce integration testing
  • HubSpot integration testing
  • Google Workspace integrations
  • Outlook integrations
  • Slack integrations
  • Revenue Operations or SaaS product experience


Ideal Candidate Profile

  • Senior QA Engineer
  • Staff QA Engineer
  • Senior SDET
  • QA Architect
  • 8+ years of overall experience
  • Strong mix of Manual + Automation Testing
  • Startup or product-company background

Experience building quality processes for rapidly scaling products

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