Assistant District Attorney

Position Summary

Assistant District Attorneys (ADAs) are appointed by the District Attorney to represent the Commonwealth of Massachusetts in criminal proceedings in Middlesex County. They are responsible for all pre-trial, trial, and post-conviction matters in assigned cases.

ADAs prosecute a range of misdemeanor and felony cases in the Juvenile, District and Superior Courts. They represent the Commonwealth in bail arguments, substantive motions, plea negotiations, both jury and jury-waived trials, and appellate proceedings.

Primary Responsibilities

  • Review evidentiary reports, prepare discovery, identify and interview victims and witnesses
  • Represent the Commonwealth in court by presenting evidence and argument at arraignments, preliminary hearings, pre-trial conferences, hearings on motions, trials, sentencing, Grand Jury proceedings, and appellate proceedings
  • Conduct legal research and write legal documents such as affidavits, memoranda and briefs in assigned cases
  • Keep abreast of court decisions and legislation affecting Massachusetts law
  • Work closely with victim witness advocates, law enforcement, court personnel, the defense bar, criminal justice agencies and the public.


  • J.D. degree
  • Applicants with the Supreme Judicial Court 3:03 student practitioner certification are eligible to apply
  • Excellent academic credentials
  • Active member of the Massachusetts Bar in good standing
  • Superior communication skills and sound judgment
  • Strong organizational skills
  • Problem solver who is a self-starter and can work independently
  • Solid legal research and writing skills
  • Demonstrated commitment to public service

MDAO Benefits

The MDAO is pleased to offer a comprehensive benefits package to its employees. The specific components and eligibility may vary based upon position classification, hours worked per week and other variables. Therefore, specific benefits for this position may be discussed as part of the interview and offer process for this position.

Commitment to Diversity

The MDAO is committed to building a diverse staff and has formed both internal and external diversity committees to help attract, hire, retain and promote the very best staff, diverse in background and perspective, while helping formulate and guide policy and decision-making, and pursue the mission of the office.  The MDAO is an equal opportunity employer. MDAO employees are employees at will.

Application Process

Interested candidates should submit to Aliya Khalidi a signed MDAO Application form (found at, a cover letter, resume and a list of references to

July 2022