Junior Chemist

Junior Chemist

Location: Carrollton, TX (on site)

Business: PRECILAB, a Scientific Safety Alliance company

Reports to: Laboratory Director

Type: Full time, salaried

Compensation: $50,000 to $55,000/year

Schedule: Monday to Friday, 9:00 am to 6:00 pm, with occasional off-hours work for customer rush

About Scientific Safety Alliance (SSA)

At Scientific Safety Alliance (SSA), we are on a mission to revolutionize how scientists experience regulation-mandated services. We provide testing, inspection, and calibration services, and supply air filters and equipment parts, to pharmaceutical, medical device, and research organizations across the U.S., the U.K., and Austria.

We are growing fast. With 24 acquisitions in less than 3 years, a customer base of 13,500+, operations across three countries, and a No. 175 ranking on Inc. Magazine's 2025 list of America's Fastest-Growing Private Companies, SSA is scaling quickly and looking for bold, driven talent to grow with us.

PRECILAB, based in Carrollton, Texas, is SSA's ultra-trace contamination analysis laboratory. Our customers are semiconductor and advanced electronics manufacturers who rely on us for accurate, defensible results at parts-per-billion and parts-per-trillion levels. The lab is accredited to ISO/IEC 17025 by A2LA.

Role Overview

The Junior Chemist runs customer samples through PRECILAB 's analytical methods, from preparation to reported data. It is a hands-on bench role and the entry point into ultra-trace analysis  train on the job.

You will prepare reagents, standards, and samples in a clean room environment, operate the lab's instrumentation under established methods, verify that instruments are producing valid results, and record everything to the standard an ISO/IEC 17025 audit expects. The work is exacting. At the concentrations we report, a single contaminated piece of labware invalidates a result, so care and discipline matter more here than speed.

The Junior Chemist works alongside the lab team, the Laboratory Director, and the Quality Management Team, and takes part in internal and external accreditation audits.

Key Responsibilities

Sample Preparation and Analysis

• Work in clean room environments wearing smock, face mask, hair net, and nitrile gloves, following contamination control discipline at all times

• Prepare ultra-pure reagents, calibration standards, and spiked samples to method specification

• Clean labware to the standard required for trace and ultra-trace work, before and after analysis

• Carry out sample preparation and treatment, including digestions and dilutions, in line with PRECILAB quality system documents

• Run analyses on PRECILAB instrumentation: ICP-MS, ICP-OES, auto-titrator, Karl Fischer titrator, ion chromatography, gas chromatography, and new instrumentation as the lab adds it

• Meet committed customer cycle times without compromising data quality

Instrument Performance and Maintenance

• Perform daily calibrations and continuing calibration verification, and confirm results sit within quality control criteria before samples are run

• Recognize when an instrument is drifting or out of specification, stop work, and elevate rather than report questionable data

• Carry out and assist with scheduled preventative maintenance

• Document maintenance, repairs, and parts used, and keep instrument records complete and current

Data, Quality, and Documentation

• Validate and report analytical data, and complete customer reports correctly and ready for review

• Review and update standard operating procedures and instrument operating procedures, and keep them under document control

• Support the Quality Management Team on method development and validation for new instruments, methods, and analytical processes

• Maintain the electronic and paper filing system…