26 sampling operator jobs at 21 companies in Rosenberg, TX
2w
Save
Mark Applied
Hide
Operator II
Pasadena, Texas, United States
OnsiteFull Time
Operate and monitor pilot plant units, perform sampling, assist with maintenance and construction support, follow HSE/PSM practices, and maintain operational records.
DeltaV, Distributed Control Systems (DCS)
2w
Save
Mark Applied
Hide
Experimental Operator
Sugar Land, Texas, United States
$45k-$73k/yr OnsiteFull Time
4+ YOEExecute laboratory crystallization experiments, operate reactor systems, perform time-sensitive sampling, maintain experimental records, and support analytical sample preparation. Bachelor's in computer science required.
Labware, IC, XRD
3d
Save
Mark Applied
Hide
Operator I
Houston or Boston or North America
OnsiteFull Time
High school diploma/GED required. Must learn and independently operate processing equipment, perform sampling and testing, complete rounds, support maintenance, and work safely in teams.
2w
Save
Mark Applied
Hide
Reactor Operator
Pearland, Texas, United States
OnsiteFull Time
2+ YOEMinimum 2 years process operations experience in chemical or similar facilities; knowledge of reaction/blending procedures, LOTO, SDS, nitrogen blanketing, sampling, basic computer/Excel, ability to lift and work at heights, and follow safety/emergency procedures.
Microsoft Excel
2mo
Save
Mark Applied
Hide
Production Operator
Seabrook, Texas, United States
OnsiteFull Time
Operate production equipment including extruders, perform resin blending, material loading, packaging, bulk loading, sampling and inspection; high school diploma/GED; ability to stand/walk most of shift, perform manual labor and use fork trucks and computerized equipment.
3d
Save
Mark Applied
Hide
Table Operator
Houston, Texas, United States
OnsiteFull Time
Dairy Farmers of America: Produces and distributes milk, cheese, butter, and dairy ingredients.
Monitor curd pH and ingredients, add salt, complete production logs, perform CIP, submit samples, maintain sanitation and safety standards, and follow GMP, HACCP, and SQF procedures.
CIP, 5S, Good Manufacturing Practices (GMP), Hazard Analysis and Critical Control Point (HACCP), Safe Quality Foods (SQF)
3w
Save
Mark Applied
Hide
Tank Farm Operator
La Porte, Texas, United States
$21-$28/hr OnsiteFull Time
Operate truck and railcar loading/unloading, sampling, tank transfers, follow PSM and safety programs, pass Basic Plus safety, HAZWOPER and respirator/PFT requirements, perform physical tasks and fall protection.
2mo
Save
Mark Applied
Hide
CPT Operator with CDL
Beaumont or Houston
FieldFull Time
Must hold a Class A driver's license and clean driving record, perform CPT/drilling/sampling, supervise crews, complete safety paperwork, pass background and hair follicle drug tests, work in varied weather and travel frequently.
1mo
Save
Mark Applied
Hide
Fuel Treatment Operator
Pasadena, Texas, United States
FieldFull Time
Must hold Class A CDL with Hazmat and Tanker endorsements, high school diploma, English proficiency, basic computer and math skills, ability to work in industrial/marine sites and lift heavy samples; subject to drug & alcohol testing and medical/fit testing requirements.
3mo
Save
Mark Applied
Hide
Potable Water & Wastewater Treatment Operator
Houston, Texas, United States
OnsiteFull Time
1+ YOEOperate potable water and wastewater systems; ensure SDWA, CWA, and TCEQ compliance; maintain logs; perform sampling; 1–5+ years exp; Texas certification; driver’s license.
SCADA, Automation Controls
3mo
Save
Mark Applied
Hide
RETAIN SPECIALIST
Pasadena or Lake Charles or Houston or Point Comfort
OnsiteFull Time
Responsible for sample retention operations, field support, and coordinating with multiple offices.
2w
Save
Mark Applied
Hide
Lolli and Pops Sales Associate
The Woodlands, Texas, United States
$8-$9/hr OnsitePart Time
Provide friendly guest service, operate cash register, lift up to 25 pounds, maintain store cleanliness and merchandising; basic product knowledge and sample offering.
1mo
Save
Mark Applied
Hide
Forklift / Hazmat / Warehouse / Labor
Houston, Texas, United States
OnsiteFull Time
Receive, screen, unload, treat and track containerized wastes; operate forklift and pallet-jack; use handheld barcode scanners; collect/analyze samples; attention to detail and basic computer skills.
handheld bar code scanner, forklift, pallet-jack
1w
Save
Mark Applied
Hide
Lab Technician
Houston, Texas, United States
OnsiteFull Time
Lab experience or related background; ability to prepare petroleum blends, conduct ASTM tests, operate lab equipment, process data, manage samples and inventory, and follow HSSE and laboratory safety practices.
ASTM, HSSE
3w
Save
Mark Applied
Hide
PRN Laboratory Technician, Evening, (2:30a-11:00p) days of week varies
Houston, Texas, United States
OnsitePart Time
1+ YOEMinimum 1 year clinical experience or medical trade school graduate; high school/GED preferred; ability to perform daily lab operations, sample processing, clerical duties, and follow regulatory standards.
2mo
Save
Mark Applied
Hide
Warehouse Associate
Houston, Texas, United States
OnsiteFull Time
1+ YOEOperate forklift, receive/unload/load products, maintain inventory, prepare samples, high school diploma or equivalent and minimum 1 year relevant experience; must pass background check and drug screen.
forklift
1mo
Save
Mark Applied
Hide
Clinical Research Specialist - Urology
Houston, Texas, United States
OnsiteFull Time
1+ YOEBachelor's degree required, 1 year healthcare or research experience preferred, strong English communication, ability to collect and document study data, support clinical research operations, and manage samples and regulatory documentation.
1mo
Save
Mark Applied
Hide
Seasonal Lab Technician 2026
Alvin, Texas, United States
OnsiteFull Time, Seasonal
Life sciences background preferred (Bachelor's), ability to perform sample prep, follow GMP, operate automated lab equipment, troubleshoot processes, and use Microsoft Excel/Word/PowerPoint; able to lift up to 50 lbs.
Microsoft Excel, Microsoft Word, PowerPoint
2mo
Save
Mark Applied
Hide
Geotechnical Driller
Dallas or Houston
FieldFull Time
2+ YOE2+ years geotechnical drilling experience; valid driver's license; travel up to 50%; able to lift up to 50+ lbs; operate drilling equipment, retrieve and log samples, work outdoors and overnight shifts, and supervise driller assistants.
2mo
Save
Mark Applied
Hide
Gas Recovery Technician - South (Angleton, TX, US)
Angleton or Freeport
$28-$34/hr OnsiteFull Time
Operate, maintain, and repair landfill gas collection and processing systems; perform inspections, sample collection, minor electrical/mechanical repairs; HS diploma, valid driver’s license, MS Office proficiency, ability to work overtime and in outdoor/industrial conditions.
Microsoft Office