Position Summary
We are hiring a Gas Cylinder Filler to fill high-pressure cylinders with pure gases and to prepare custom gas mixtures by gravimetric (weight-based) blending. This is a hands-on production role in our fill plant. You will work with high-pressure equipment, analytical balances, and documented procedures under an accredited quality system.
This is a skilled position. We will train the right person on our specific systems, but you must be careful, methodical, and comfortable following written procedures exactly.
Key Responsibilities
Pure gas filling
- Transfill cylinders from bulk sources, tube trailers, and manifolds (helium, nitrogen, argon, oxygen, CO₂, hydrogen, and others).
- Prepare cylinders prior to filling: inspection, evacuation, purging, and heating/drying as required by the procedure.
- Verify fill pressure and quantity; correct for temperature.
Gravimetric mixture filling
- Prepare multi-component gas mixtures by weight using calibrated analytical balances, following the applicable work instruction and blend sheet.
- Calculate and verify component masses, target concentrations, and fill order.
- Roll, mix, and homogenize cylinders per procedure prior to release for analysis.
- Coordinate with the lab for analysis and re-blending when a mixture is out of tolerance.
Cylinder handling and compliance
- Verify cylinder eligibility before filling: hydrostatic test/requalification date, valve and CGA connection type, service pressure, prior contents, and visual condition.
- Reject and tag any cylinder that does not meet requirements.
- Apply correct labels, tags, and hazard communication markings.
- Handle, move, and stage cylinders safely, including forklift and cylinder cart operation.
Documentation and quality
- Complete fill records, batch records, and traceability documentation accurately and legibly, in real time.
- Follow all SOPs and quality-system requirements under our ISO 17025 / ISO 17034 accreditation.
- Report equipment problems, deviations, and non-conformances immediately.
Housekeeping and safety
- Maintain a clean, organized, and safe fill area.
- Use required PPE at all times and follow all safety rules without exception.
Required Qualifications
- High school diploma or GED.
- Ability to read, understand, and follow written procedures in English (Spanish/English bilingual is a plus).
- Solid basic math skills — you must be comfortable with unit conversions, percentages, and reading a balance to several decimal places.
- Strong attention to detail and willingness to stop and ask rather than guess.
- Ability to lift up to 50 lbs and to move and handle high-pressure cylinders (including 200+ lb cylinders using carts and mechanical aids) throughout the shift.
- Ability to stand, walk, bend, and work on your feet for the full shift, in a warehouse environment that is not climate-controlled.
- Reliable attendance and punctuality.
- Must pass a background check and drug screen.
- Authorized to work in the United States.
Preferred Qualifications
- 1+ years of experience filling compressed gas cylinders, or experience in a gas plant, cryogenics, chemical plant, or similar high-pressure industrial environment.
- Experience with gravimetric blending or specialty/calibration gas production.
- Familiarity with DOT/CGA cylinder requirements, CGA valve outlet connections, and cylinder requalification requirements.
- Experience working under an ISO-accredited or otherwise documented quality system.
- Basic computer skills (data entry, ERP/order system).
Pay: $35,000.00 - $48,000.00 per year
Work Location: In person
