DNA Forensic Scientist I — Biological Evidence

City and County of San Francisco; San Francisco (CA); On-site; USD 104,000 - 127,000; Full time

Job summary

The City and County of San Francisco recruits for a Criminalist I in Forensic Biology DNA. The position provides on‑the‑job training in evidence examination, serological and DNA lab procedures, and progression to more complex casework as proficiency develops.

Responsibilities include analyzing biological material, maintaining chain‑of‑custody, compiling reports, and supporting court testimony while adhering to lab standards and safety protocols.

Qualifications

• Bachelor’s degree in a physical science with focus on criminalistics, chemistry, biochemistry, molecular biology, or related field.
• Course work must include forensic science, biochemistry, genetics, molecular biology or related subjects.

Responsibilities

• Examine evidence from criminal investigations for the presence of biological material.
• Perform chemical, microscopic, and genetic analyses of biological evidence using laboratory procedures.
• Interpret data and document observations according to lab protocols.
• Prepare detailed case notes and reports of scientific findings.
• Maintain chain-of-custody for evidence.
• Follow quality control, safety, and QA procedures.
• Enter case information into lab systems and tracking databases.
• Operate and maintain laboratory instruments and perform routine checks.
• Participate in DNA typing proficiency tests.
• Provide impartial court testimony regarding findings.
• Identify biological material like blood, semen, saliva, hair, tissue.
• Perform DNA testing to characterize evidence and contributors.
• Ensure proper handling and preservation of biological evidence.

Education

Bachelor's degree in criminalistics, chemistry, biochemistry, molecular biology, or closely related physical science field

Course work in forensic science, biochemistry, genetics, molecular biology or related subjects

Verification: transcript with completion of required courses

License: valid California Driver’s License

Tools

None

Job description

The City and County of San Francisco recruits for a Criminalist I in Forensic Biology DNA. The position provides on‑the‑job training in evidence examination, serological and DNA lab procedures, and progression to more complex casework as proficiency develops.

Responsibilities include analyzing biological material, maintaining chain‑of‑custody, compiling reports, and supporting court testimony while adhering to lab standards and safety protocols.