Gas purity is a problem most people never think about, right up until it fails. ASTG builds the instruments that make sure it doesn't. Our analyzers verify ultra-high-purity gases in semiconductor fabs, breathing oxygen for military aircrew, hydrogen fuel against ISO 14687, and the CO₂ behind carbon capture. If you would rather build something measurable than something abstract, this is a good place to do it.

Working at ASTG

ASTG designs and manufactures gas analysis and monitoring systems for industries where gas purity is not negotiable. Our analyzers verify ultra-high-purity gases in semiconductor fabs, breathing oxygen for military aviation, hydrogen fuel against ISO 14687, beverage-grade CO₂ against the ISBT guidelines, and the CO₂ streams behind carbon capture and sequestration. We have been doing it for 25 years, from our headquarters and manufacturing facility in Newton, New Jersey.

What that means day to day: the engineering, the assembly, the calibration and the service all happen under one roof, and the people who design an instrument are the people who see it built. Our customers include semiconductor manufacturers, air separation and specialty gas producers, beverage companies, and the aerospace and defense sector.

Why work at ASTG?

At ASTG, you're not just another employee. You're part of a team where your ideas, effort, and impact are noticed.

We're a growing, technology-driven company made up of problem solvers, builders, and people who genuinely care about the work we do. Because we're a smaller organization, employees have the opportunity to work across teams, take on meaningful responsibility, learn quickly, and directly contribute to where the company is headed.

Make an impact

Your work matters here. Whether you're designing a system, building equipment, supporting a customer, improving a process, or helping the business run more efficiently, you can see the direct impact of what you do.

Grow with us

As the company grows, we want our employees to grow with it. We encourage professional development, training, certifications, new responsibilities, and opportunities to expand your career.

Never stop learning

No two days at ASTG are exactly the same. We work on complex projects across a variety of industries, which means there are always new challenges to solve, technologies to learn, and opportunities to think differently.

Be seen and heard

Good ideas don't have to travel through layers of management. We value employees who speak up, identify opportunities, take ownership, and help us improve. In a growing company, great work gets noticed.

Work with good people

We spend a lot of time together, so who we work with matters. We strive to build a team of people who are collaborative, accountable, hardworking, and enjoyable to be around. We take our work seriously without believing we have to take ourselves too seriously.

Help build what comes next

ASTG continues to evolve, and our employees have the opportunity to help shape that evolution. If you're comfortable with change, enjoy solving problems, and want to be part of building something rather than simply maintaining it, you'll fit right in.

And yes, we love dogs

Dogs have become part of the ASTG culture, and we wouldn't have it any other way.

If you're looking for a place where you can contribute, grow, be recognized, and help build the future, we'd love to hear from you.

Benefits and perks

At ASTG, we believe our employees are an important part of our continued growth and success. We're committed to providing benefits that support our team today while also helping them plan for the future.

Company-paid medical and vision coverage

ASTG covers the cost of medical and vision insurance for our employees, with options available to add dependent and dental coverage.

Paid time off and sick time

Employees receive paid time off and sick time to recharge, take care of personal needs, and maintain a healthy balance outside of work. PTO benefits increase with tenure.

401(k) retirement plan and company match

Eligible employees can participate in ASTG's 401(k) retirement plan, with a company match of up to 4% of employee contributions.

Long-term retirement benefits

ASTG offers an additional pension benefit for eligible long-term employees after five years of service.

Professional growth and development

We believe in investing in people who invest in ASTG. Employees are encouraged to pursue training, certifications, and professional development opportunities that strengthen their skills and support their career growth.

Benefits, eligibility, plan options, and company contributions are subject to applicable plan documents and company policies and may change from time to time.

Where we are

Our headquarters and manufacturing facility is at 2 Spring Street, Newton, New Jersey 07860, in Sussex County, about an hour from northern New Jersey and the New York metropolitan area. Most roles are based here. Where a role is remote or hybrid, its own page says so plainly.

How to apply

Every application goes to one place: resumes@astg.com. Open the role you're interested in from the list above and follow the instructions on its page. The apply link there fills in the subject line for you, which helps us route your application to the right person.

If nothing listed matches you but you think there's a fit, send your resume to resumes@astg.com anyway. We hire steadily across engineering, manufacturing and service, and we keep good resumes on file.

Frequently asked questions

What is it like to work at ASTG?
ASTG is a smaller, technology-driven manufacturer, so employees work across teams, take on meaningful responsibility and see the direct impact of what they do. Engineering, assembly, calibration and service all happen under one roof in Newton, New Jersey, on projects spanning semiconductor, aerospace and defense, industrial and specialty gas, hydrogen and carbon capture. Good ideas don't have to travel through layers of management.

What benefits does ASTG offer?
ASTG covers the cost of medical and vision insurance for employees, with dependent and dental coverage available to add. Employees also receive paid time off and sick time that increases with tenure, a 401(k) plan with a company match of up to 4% of employee contributions, an additional pension benefit for eligible employees after five years of service, and support for training, certifications and professional development.

Where is ASTG based?
ASTG's headquarters and manufacturing facility is at 2 Spring Street, Newton, New Jersey 07860. Most roles are based on site; any role that is remote or hybrid says so on its own page.

What does ASTG make?
Gas analysis and monitoring systems. Our analyzers verify ultra-high-purity gases for semiconductor manufacturing, breathing oxygen for military aviation, hydrogen fuel purity to ISO 14687, beverage-grade CO₂ to the ISBT guidelines, and CO₂ streams in carbon capture and sequestration.

How do I apply for a role at ASTG?
Email your resume to resumes@astg.com, with the role title in the subject line. Each open role has its own page listing the responsibilities, the requirements and an apply link that fills the subject line in for you.

ASTG is an equal opportunity employer. We welcome applications from qualified individuals regardless of race, ethnicity, gender, sexual orientation, disability, or veteran status.

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