Laboratory Technician I — Environmental Sample Prep

Onterris; Orange (CA); On-site; USD 28,000 - 34,000; Full time

Job summary

Onterris is seeking a Laboratory Technician I for our Orange, CA laboratory. You will prepare samples, support daily lab operations, and collaborate with a team to deliver accurate and timely results.

The role requires a High School diploma (science coursework preferred) and demonstrates strong SOP adherence, safety practices, and organizational skills. Schedule: Tue–Sat, 7:00 am–3:30 pm; compensation $20.50–$25 per hour.

Qualifications

• High School diploma or equivalent required.
• Basic understanding of laboratory workflows.
• Ability to follow SOPs precisely.
• Familiarity with laboratory safety practices and PPE.
• Strong organizational and time-management skills.
• Clear verbal and written communication.
• Comfortable working with chemicals and lab equipment.
• Ability to stand for extended periods and lift up to 25 lbs.

Responsibilities

• Perform all Laboratory Assistant duties, including sample handling, organization, and general laboratory upkeep.
• Retrieve, store, and dispose of samples in accordance with SOPs, chain of custody, and hold-time requirements.
• Execute routine sample preparation for assigned methods under established SOPs.
• Prepare reagents and solutions following approved procedures.
• Perform gravimetric and titrimetric measurements as required.
• Support daily batch preparation and completion to meet turnaround time expectations.
• Perform waste handling, labeling, and documentation in compliance with regulatory and internal requirements.
• Maintain inventory awareness and notify senior staff of low or critical supplies.
• Maintain clean, organized, contamination-controlled workspaces.
• Complete temperature logs and routine laboratory documentation accurately.
• Communicate workflow issues, delays, or deviations to senior technicians or leadership.

Skills

Lab workflows

SOP compliance

Time management

Clear communication

Safety & PPE

Chemicals handling

Organizational skills

Attention to detail

Education

High School diploma or equivalent

Science coursework / Associate degree preferred

Job description

Onterris is seeking a Laboratory Technician I for our Orange, CA laboratory. You will prepare samples, support daily lab operations, and collaborate with a team to deliver accurate and timely results.

The role requires a High School diploma (science coursework preferred) and demonstrates strong SOP adherence, safety practices, and organizational skills. Schedule: Tue–Sat, 7:00 am–3:30 pm; compensation $20.50–$25 per hour.