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Stack Tester Jobs in California (NOW HIRING)

Purple Unicorn

Full-Stack Engineer

San Francisco, CA · On-site

$120K - $150K/yr

Purple Unicorn, on behalf of SalesPatriot , is hiring an Full Stack Engineer . Non-negotiable: ALL ... Strong understanding of software engineering best practices, including version control, testing ...

Redolent, Inc.

Full-Stack Engineer

Sunnyvale, CA · On-site

Role: Full-Stack Engineer, Duration: 12+ Months Location:Sunnyvale CA Rate: DOE Detailed req ... Write unit test cases using Jest, Mocha, React Testing Library, and Cypress. * Ensure browser ...

eTouch Systems

Full Stack Web Developer

San Jose, CA · On-site

We provide high-end technology and business consulting, software development, application testing and systems integration services. Our Direct Client in San Jose is looking for Full Stack Developer ...

Internet Brands

Full Stack AI Engineer

El Segundo, CA · On-site

$100/hr

Utilize full-stack capabilities and AI-assisted development tools (e.g., Claude Code) to build high ... Framework Stress-Testing: Act as power-user of our internal AI Development Framework, enabling its ...

Staffingine LLC

Java Full Stack Developer

San Jose, CA · On-site

$61.50 - $79.50/hr

Java Full Stack Developer Job Location: San Jose, CA Job Type: Contract * 8+ yr experience ... Knowledge of unit testing frameworks JUnit Jasmine Karma * Good problem solving and communication ...

eTouch Systems

Full Stack Web Developer

San Jose, CA · On-site

We provide high-end technology and business consulting, software development, application testing and systems integration services. Our Direct Client in San Jose is looking for Full Stack Developer ...

Krew

Full Stack Engineer

San Francisco, CA · On-site

$150K - $250K/yr

We're looking for a (Human) Member of Technical Staff specializing in full-stack engineering. We're ... Strong code quality habits (testing, reviews, docs) and a product mindset Preferred Qualifications:

Staffingine LLC

Java Full Stack Developer

San Jose, CA · On-site

$61.50 - $79.50/hr

Java Full Stack Developer Job Location: San Jose, CA Job Type: Contract * 8+ yr experience ... Knowledge of unit testing frameworks JUnit Jasmine Karma * Good problem solving and communication ...

Krew Research

Full Stack Engineer

San Francisco, CA · On-site

$150K - $250K/yr

We're looking for a (Human) Member of Technical Staff specializing in full-stack engineering. We're ... Strong code quality habits (testing, reviews, docs) and a product mindset Preferred Qualifications:

Staffingine LLC

Java Full Stack Developer

San Jose, CA · On-site

$61.50 - $79.50/hr

Java Full Stack Developer Job Location: San Jose, CA Job Type: Contract * 8+ yr experience ... Knowledge of unit testing frameworks JUnit Jasmine Karma * Good problem solving and communication ...

Marlabs LLC

AI Full Stack Developer

San Jose, CA · On-site

AI Full Stack Developer Location: San Jose, CA - Onsite 3 days a week Duration: Fulltime JOB ... Will be responsible for building, testing, and scaling AI-driven products. Key Responsibilities

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All JobsStack Tester JobsStack Tester Jobs in California

Stack Tester information

See California salary details

$10

$37

$61

How much do stack tester jobs pay per hour?

As of Jul 22, 2026, the average hourly pay for stack tester in California is $37.86, according to ZipRecruiter salary data. Most workers in this role earn between $21.11 and $50.05 per hour, depending on experience, location, and employer.

What is a Stack Tester job?

A Stack Tester is responsible for conducting emissions testing on industrial stacks to ensure compliance with environmental regulations. They collect air samples, operate testing equipment, and analyze emissions data. The role involves working outdoors, traveling to various sites, and following strict safety protocols. Stack Testers help industries meet air quality standards and regulatory requirements set by agencies like the EPA.

What are the key skills and qualifications needed to thrive in the Stack Tester position, and why are they important?

To thrive as a Stack Tester, you need a solid understanding of emissions testing protocols, environmental science, and analytical data collection, often supported by relevant technical training or certifications such as EPA Method 5 or NIOSH courses. Proficiency with stack sampling equipment, gas analyzers, and software for data logging and reporting is essential. Strong attention to detail, physical stamina, and effective communication help Stack Testers succeed, especially when working outdoors or as part of a team at industrial sites. These abilities ensure accurate emissions measurements, regulatory compliance, and the safe execution of testing procedures.

What are the typical daily responsibilities and work conditions for a Stack Tester?

Stack Testers spend much of their day collecting air samples from emission sources like smokestacks at industrial facilities using specialized equipment, often in outdoor or high-elevation environments. The role involves setting up, calibrating, and operating monitoring instruments, accurately recording data onsite, and later preparing detailed reports for compliance with environmental regulations. You may work in varying weather conditions and sometimes at significant heights or within safety-restricted zones, so adherence to safety procedures is critical. Work schedules can be irregular due to the need to conduct tests during plant downtime or according to regulatory requirements, and Stack Testers frequently collaborate with plant operators, environmental engineers, and regulatory officials. This role is ideal for those who enjoy hands-on technical work, troubleshooting, and contributing to environmental protection.

What are the most commonly searched types of Stack Tester jobs in California? The most popular types of Stack Tester jobs in California are:
What are popular job titles related to Stack Tester jobs in California? For Stack Tester jobs in California, the most frequently searched job titles are:
What job categories do people searching Stack Tester jobs in California look for? The top searched job categories for Stack Tester jobs in California are:
Stack Tester jobs near you
Infographic showing various Stack Tester job openings in California as of July 2026, with employment types broken down into 100% Full Time. Highlights an 100% In-person job distribution, with an average salary of $78,746 per year, or $37.9 per hour.

Full-Stack Engineer

Purple Unicorn

San Francisco, CA • On-site

$120K - $150K/yr

Full-time

Medical, Retirement, PTO

Re-posted 5 days ago

Job description

Purple Unicorn, on behalf of SalesPatriot, is hiring an Full Stack Engineer.

Non-negotiable: ALL ROLES ARE ON-SITE IN SAN FRANCISCO. IN ORDER TO BE CONSIDERED YOU MUST BE LOCAL OR WILLING TO MOVE

*** Must be authorized to work in the US***

The Mission

America's industrial base runs on systems built in the 1980s.

Billions of dollars in critical components (F-35 parts, industrial assemblies, electronics, bolts, and hoses) still move through email threads, excel sheets, and disconnected ERPs.

We're replacing that with an AI-native platform that makes defense, aerospace, and industrial supply-chain operations nearly autonomous. Faster quoting. Faster procurement. Full visibility. Real operational intelligence for the companies our nation depends on.

Quick Facts
  • YC W25 company. Top 5% growth in batch
  • Raised $10M+ from investors including Paul Graham, SV Angel, Pear VC, and CRV
  • Team of 20 co-live in our SF & Warsaw Hacker Houses
  • 7 figure ARR transacting ~$50M a week through our system
The Role

Our Full Stack Engineers work closely with other engineers on the platform team and customer-facing forward deployed teams to design, build, and maintain robust full-stack systems that integrate with complex legacy environments and support high-value, high-impact supply chain systems.

  • Full time, in-person in SF. This is not a remote role.
  • Backend-leaning fullstack role using Svelte/Typescript/Postgres.
  • Design, develop, and maintain full-stack application functionality, including:
  • Organize, keep track of, and deliver multiple projects in parallel
What We're Looking For
  • Absolute grinder. Interested in co-living (though not required).
  • Comfortable with ambiguity and rapid change.
  • Track record of shipping fast.
  • Experience architecting systems independently
  • Motivated by taking an unknown problem, sinking your teeth in, and coming up with a plan of attack.
  • Experience in shipping projects and products. Be ready to show us at least one full-stack project (GitHub repo / web app / Loom demo video).
  • Proficiency in TypeScript, JavaScript, and at least one frontend library (React, Svelte, Next etc).
  • Knowledge of SQL databases, preferably Postgres.
  • Proficiency in writing, optimizing, and troubleshooting complex SQL queries for data extraction, transformation, and integration.
  • Strong understanding of software engineering best practices, including version control, testing, and documentation
  • Ability to work effectively in fast-paced, high-accountability environments
  • Low ego, curiosity, and intellectual honesty - focused on outcomes, not "being right"

Salary & Benefits

  • $120-$150K
  • Medical (Partially paid)
  • PTO
  • 401K pending
Employment Type: FULL_TIME

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