Working at Critical Process Filtration

The products we manufacture are critical to the companies that make common over-the-counter medicines, research cancer treatments, and produce COVID-19 tests. They are used by companies that make food, vitamin supplements, juice, beer, wine, and much more. Electronics companies implement CPF products to produce purified water that cleans their components. Our filters remove the kinds of contaminants that can make people and animals fatally ill or cause a microchip to fail. 

So when you play a part in CPF's administration, facilities management, quality control, engineering, assembling, testing, marketing, customer service and support of our products - you make a real difference in people's lives.

Critical Process Filtration Employee working in pleating room


Perks & Benefits


Competitive Compensation

With additional levels of pay offered immediately to well qualified candidates based on your skills and experience


Holidays & Paid Time Off

We offer 9 paid holidays annually and you start accruing PTO on your first day (up to 5 weeks).


Referral Program

If we end up hiring your referred candidate, you are eligible for a bonus!



We celebrate birthdays and work anniversaries monthly and the company holds both a holiday party and summer outing.

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Medical, Dental & Vision Insurance, Life Insurance & Long Term Disability

Company-paid life insurance & long-term disability. Medical, Dental & Vision eligibility starts on the 1st of the month following date of hire

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Eligible on the first of the month after 90 days with a portion matched by the company

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Easy Commute, Free Parking, Local Bus Lines

Working close to where you live is great, especially as gas prices rise. CPF employees enjoy free parking in our lot behind the building. Walkers and bikers benefit from Nashua's sidewalks and bike lanes that lead directly to our location. Local bus routes bring you within blocks of our building for bus commuters. View the Nashua, NH Bus Routes and Schedules here!

Full & Part-Time, Multiple Shifts

At CPF, we offer flexible day and evening shifts to fit into your busy lifestyle. With both part-time and full-time opportunities, you can find a job that works for you.

Everyone is welcome here

We are hard-working and focused on meeting our customers’ needs. We have a great team and are proud of what they accomplish each day in the production of high-quality products delivered on time. 

We like to have fun, too

We are energized by working hard together to reach the same goal of producing quality products on time and providing great customer service. We also enjoy fun times, community involvement, company gatherings, and celebrations!


Our Filters Help Create


Available Positions

Lead Manufacturing Technician

Full time - Nashua, NH

Production Planner

Full time - Nashua, NH

Lab Technician

Full time - Nashua, NH

Light Assembly Manufacturing Technician

Full time - Nashua, NH

Production Supervisor

Full time - Nashua, NH

Mechanical Process Engineer

Full time - Nashua, NH

Preventative Maintenance Supervisor

Full time - Nashua, NH


Part time - Nashua, NH

Warehouse Associate

Full time - Nashua, NH

Quality Administrator

Full time - Nashua

Shipping & Receiving Inventory Clerk

Full time - Nashua

Part-Time SOLIDWORKS Drafter

Full time - Nashua