Investigator Jobs for OPT Students
Investigator jobs on OPT are available across insurance, financial compliance, corporate security, and government contracting. Most roles require analytical skills and attention to detail. Your 12-month OPT window is typically enough to complete a full investigation cycle, and STEM extensions apply if your degree is in a qualifying field.
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Job Number: 417112
Description
JOB ANNOUNCEMENT
INVESTIGATOR
Chicago Fire Department
Internal Affairs Division
Number of Positions: 1
(Additional vacancies possible pending budget approval)
Starting Salary: $63,504
Applications for this position will be accepted until 11:59pm CDT on 04/03/2026
Under supervision, investigates complaints relating to City of Chicago Public Safety Department personnel involving allegations of official misconduct, residency violations, criminal activity, or violations of City of Chicago Personnel Rules and/or departmental rules, regulations, policies, and procedures, and performs related duties as required.
ESSENTIAL DUTIES
- Investigates internal allegations of criminal activity, violations of administrative and personnel rules, and other matters as assigned
- Interviews with complaints, witnesses, and employees
- Handles members of the public as complainants and witnesses
- Conducts site visits and canvas areas to collect physical evidence and examine records and related documents
- Performs moving and stationary surveillances
- Conducts background investigations as part of the pre-employment process and interviews candidates and potential employees
- Liaises with criminal investigators and prosecutors on criminal investigations
- Interviews all parties involved in formal complaints of sexual harassment or violence in the workplace
- Prepares detailed investigation reports using case management systems, documenting findings clearly and accurately
- Participates in on-call rotation responding to incumbent drug testing pursuant to labor agreements and department general orders for fitness for duty issues or motor vehicle accidents
- Testifies in court, at arbitrations, Personnel Board hearings, or other legal proceedings
- Maintains records of investigations, correspondence, and related case documentation
- Assists Investigative Specialists and supervisors in the conduct of large-scale and complex investigations
- Obtains and reviews reports, physical evidence, and electronic records maintained by other agencies related to investigations
- Understands and applies Rules and Regulations as well as DHR personnel rules in administrative investigations
- Operates drug testing and fingerprinting equipment commensurate with the legal requirements for the conduct of those examinations
- Collaborates with attorneys to prepare and present investigative findings at arbitrations and hearings
- Monitors investigations from inception to closure to ensure timely completion
Additional duties may be required for this position
Location: Chicago Fire Department – Internal Affairs Division
3510 S. Michigan, Chicago, IL 60653 / Citywide
Days: Monday – Friday
Days Off: Saturday and Sunday
Hours: 8:00 am to 4:00 pm (on-call rotation)
THIS POSITION IS NOT IN CAREER SERVICE
Qualifications
MINIMUM QUALIFICATIONS
Five (5) years of work experience in the conduct of investigations of criminal or fraudulent activity OR five (5) years of work experience in the performance of fact finding analyses and investigative research and reporting, OR
-
Graduation from an accredited college with an Associate’s degree in the Social Sciences, Criminal Justice, Human Resources, or a directly related field, PLUS three (3) years of work experience in the conduct of investigations of criminal or fraudulent activity OR three (3) years of work experience in the performance of fact finding analyses and investigative research and reporting, OR
-
Graduation from an accredited college or university with a Bachelor's degree or higher in the Social Sciences, Criminal Justice, Human Resources or a directly related field, PLUS one (1) year of work experience in the conduct of investigations of criminal or fraudulent activity OR one (1) year of work experience in the performance of fact finding analyses and investigative research and reporting
Licensure, Certification, or Other Qualifications
A valid State of Illinois driver's license is required.
SELECTION REQUIREMENTS
This position requires applicants to complete an interview. Interviewed applicants possessing the qualifications best suited to fulfill the responsibilities of the position, based on the interview will be selected. The Chicago Fire Department may request that successful candidates pass a drug screen and background investigation. Persons offered employment must pass all pre-employment exams prior to appointment.
APPLICATION EVALUATION:
Initial evaluation will be based on information provided on the application and the documents submitted. Department of Human Resource staff will review applications after the final posting date. Staff will follow any and all required Employment/Hiring Plan provisions, federal, state and local laws, and Collective Bargaining Agreements when applicable. Staff will apply hiring preferences as required by the municipal code. Placement on an eligibility list is not an offer or guarantee of an interview nor employment with the City of Chicago.
COMMITMENT TO DIVERSITY:
To further our commitment to hiring applicants with diverse experience the City of Chicago has adopted the following ordinances 2-74-020 and 2-74-075. The ordinances provide a preference to applicants who meet minimum qualifications and who are veterans of the Armed Forces, and/or residents of Socio-Economically Disadvantaged Areas (SEDA) and/or Chicago Public School (CPS) high school graduates to be referred to departments for consideration. These hiring preferences do not apply to bidders, as Collective Bargaining Agreements define the hiring process for bidders. For positions covered by a collective bargaining agreement, bidders will be considered before external candidates. To learn more about our hiring practices click here.
ALL REFERENCES TO POLITICAL SPONSORSHIP OR RECOMMENDATION MUST BE OMITTED FROM ALL APPLICATION MATERIALS SUBMITTED FOR CITY EMPLOYMENT.
The City of Chicago is an Equal Employment Opportunity, Military Friendly, and Fair Chance Employer.
City of Chicago
Brandon Johnson, Mayor
Job Posting: Mar 20, 2026, 11:38:47 AM | Closing Date (Period for Applying) - External: Apr 3, 2026, 11:59:00 PM
BU: 10 | Salary: $63,504
Pay Basis: Yearly

Job Number: 417112
Description
JOB ANNOUNCEMENT
INVESTIGATOR
Chicago Fire Department
Internal Affairs Division
Number of Positions: 1
(Additional vacancies possible pending budget approval)
Starting Salary: $63,504
Applications for this position will be accepted until 11:59pm CDT on 04/03/2026
Under supervision, investigates complaints relating to City of Chicago Public Safety Department personnel involving allegations of official misconduct, residency violations, criminal activity, or violations of City of Chicago Personnel Rules and/or departmental rules, regulations, policies, and procedures, and performs related duties as required.
ESSENTIAL DUTIES
- Investigates internal allegations of criminal activity, violations of administrative and personnel rules, and other matters as assigned
- Interviews with complaints, witnesses, and employees
- Handles members of the public as complainants and witnesses
- Conducts site visits and canvas areas to collect physical evidence and examine records and related documents
- Performs moving and stationary surveillances
- Conducts background investigations as part of the pre-employment process and interviews candidates and potential employees
- Liaises with criminal investigators and prosecutors on criminal investigations
- Interviews all parties involved in formal complaints of sexual harassment or violence in the workplace
- Prepares detailed investigation reports using case management systems, documenting findings clearly and accurately
- Participates in on-call rotation responding to incumbent drug testing pursuant to labor agreements and department general orders for fitness for duty issues or motor vehicle accidents
- Testifies in court, at arbitrations, Personnel Board hearings, or other legal proceedings
- Maintains records of investigations, correspondence, and related case documentation
- Assists Investigative Specialists and supervisors in the conduct of large-scale and complex investigations
- Obtains and reviews reports, physical evidence, and electronic records maintained by other agencies related to investigations
- Understands and applies Rules and Regulations as well as DHR personnel rules in administrative investigations
- Operates drug testing and fingerprinting equipment commensurate with the legal requirements for the conduct of those examinations
- Collaborates with attorneys to prepare and present investigative findings at arbitrations and hearings
- Monitors investigations from inception to closure to ensure timely completion
Additional duties may be required for this position
Location: Chicago Fire Department – Internal Affairs Division
3510 S. Michigan, Chicago, IL 60653 / Citywide
Days: Monday – Friday
Days Off: Saturday and Sunday
Hours: 8:00 am to 4:00 pm (on-call rotation)
THIS POSITION IS NOT IN CAREER SERVICE
Qualifications
MINIMUM QUALIFICATIONS
Five (5) years of work experience in the conduct of investigations of criminal or fraudulent activity OR five (5) years of work experience in the performance of fact finding analyses and investigative research and reporting, OR
-
Graduation from an accredited college with an Associate’s degree in the Social Sciences, Criminal Justice, Human Resources, or a directly related field, PLUS three (3) years of work experience in the conduct of investigations of criminal or fraudulent activity OR three (3) years of work experience in the performance of fact finding analyses and investigative research and reporting, OR
-
Graduation from an accredited college or university with a Bachelor's degree or higher in the Social Sciences, Criminal Justice, Human Resources or a directly related field, PLUS one (1) year of work experience in the conduct of investigations of criminal or fraudulent activity OR one (1) year of work experience in the performance of fact finding analyses and investigative research and reporting
Licensure, Certification, or Other Qualifications
A valid State of Illinois driver's license is required.
SELECTION REQUIREMENTS
This position requires applicants to complete an interview. Interviewed applicants possessing the qualifications best suited to fulfill the responsibilities of the position, based on the interview will be selected. The Chicago Fire Department may request that successful candidates pass a drug screen and background investigation. Persons offered employment must pass all pre-employment exams prior to appointment.
APPLICATION EVALUATION:
Initial evaluation will be based on information provided on the application and the documents submitted. Department of Human Resource staff will review applications after the final posting date. Staff will follow any and all required Employment/Hiring Plan provisions, federal, state and local laws, and Collective Bargaining Agreements when applicable. Staff will apply hiring preferences as required by the municipal code. Placement on an eligibility list is not an offer or guarantee of an interview nor employment with the City of Chicago.
COMMITMENT TO DIVERSITY:
To further our commitment to hiring applicants with diverse experience the City of Chicago has adopted the following ordinances 2-74-020 and 2-74-075. The ordinances provide a preference to applicants who meet minimum qualifications and who are veterans of the Armed Forces, and/or residents of Socio-Economically Disadvantaged Areas (SEDA) and/or Chicago Public School (CPS) high school graduates to be referred to departments for consideration. These hiring preferences do not apply to bidders, as Collective Bargaining Agreements define the hiring process for bidders. For positions covered by a collective bargaining agreement, bidders will be considered before external candidates. To learn more about our hiring practices click here.
ALL REFERENCES TO POLITICAL SPONSORSHIP OR RECOMMENDATION MUST BE OMITTED FROM ALL APPLICATION MATERIALS SUBMITTED FOR CITY EMPLOYMENT.
The City of Chicago is an Equal Employment Opportunity, Military Friendly, and Fair Chance Employer.
City of Chicago
Brandon Johnson, Mayor
Job Posting: Mar 20, 2026, 11:38:47 AM | Closing Date (Period for Applying) - External: Apr 3, 2026, 11:59:00 PM
BU: 10 | Salary: $63,504
Pay Basis: Yearly
How to Get Visa Sponsorship in Investigator
Target industries with established OPT hiring pipelines
Insurance carriers, financial institutions, and federal contractors regularly hire OPT investigators. These employers handle compliance and fraud work year-round, which means consistent hiring rather than seasonal surges. Focus your search on organizations with documented OPT or H-1B sponsorship histories.
Clarify whether your degree qualifies for a STEM OPT extension
Investigator roles tied to data analytics, forensic accounting, or cybersecurity often support STEM OPT extensions. If your degree is in a qualifying STEM field, you get 24 additional months of work authorization, which significantly increases your attractiveness to employers weighing sponsorship timelines.
Highlight your security clearance eligibility early
Federal and defense contractors staffing investigator roles value candidates who can obtain security clearances. F-1 students are eligible to apply. Mentioning your willingness to pursue a clearance in your cover letter signals long-term value to employers who might otherwise hesitate over sponsorship costs.
Frame your international background as an investigative asset
International students bring language skills, cultural fluency, and cross-border research experience that strengthen investigative work. Many corporate and insurance investigation roles involve subjects or witnesses from outside the U.S. Positioning this directly in your resume increases relevance to hiring managers screening OPT candidates.
Apply before your OPT authorization arrives, not after
Employers hiring investigators often have active caseloads and need people quickly. Apply as soon as your OPT application is filed with USCIS. You can begin working on your start date once your EAD arrives, so getting into the pipeline early avoids losing offers to timing gaps.
Ask about H-1B sponsorship during the offer negotiation stage
Raising sponsorship too early screens you out before employers assess your fit. Wait until you have an offer or strong indication of one, then ask directly whether the company has sponsored H-1B visas for investigator roles before. Prior sponsorship history is the strongest signal they will do it again.
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Get Access To All JobsFrequently Asked Questions
Can F-1 OPT students work as investigators in the United States?
Yes. F-1 students authorized for OPT can work as investigators in the private sector, financial industry, insurance, and corporate environments. Government agency positions may have citizenship requirements, but the broader investigator job market is accessible on OPT. Your work must be directly related to your degree field to maintain valid OPT authorization.
What types of investigator jobs are most likely to sponsor OPT students?
Insurance carriers, financial compliance firms, corporate security departments, and large consulting firms are the most consistent OPT sponsors in this field. These employers run ongoing investigations year-round and have structured HR processes familiar with work authorization requirements. Browse investigator roles with known sponsorship history on Migrate Mate to narrow your search to employers already open to OPT candidates.
Does an investigator role qualify for a STEM OPT extension?
It depends on your degree, not your job title. If your degree is in a STEM-designated field such as data analytics, computer science, statistics, or forensic accounting, and your investigator role meaningfully applies that training, you may qualify for a 24-month STEM extension. Confirm your degree's CIP code with your DSO to verify STEM eligibility before accepting an offer.
Can OPT investigators work on federal government contracts or for law enforcement agencies?
Private companies holding federal contracts can and do hire OPT investigators, though individual contract terms may restrict non-U.S. citizens from specific project assignments. Direct employment with federal law enforcement agencies such as the FBI or DHS generally requires U.S. citizenship. State and local law enforcement hiring rules vary by jurisdiction and should be verified with each employer.
What should I do if my OPT is about to expire before my employer files for H-1B sponsorship?
If your OPT expires before the next H-1B cap-subject filing period, a cap-gap extension automatically bridges your status if you are enrolled in a degree program and your employer files a timely H-1B petition. STEM OPT holders have more buffer time. Speak with your DSO immediately when your timeline looks tight, and confirm your employer's intent to file well before your expiration date.
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