Correctional & Operations Support Officers

Ready for a career that makes a real difference? G4S is hiring Correctional Officers and Operations Support Officers at Mount Gambier Prison. Working in corrections is a career with purpose, offering exceptional benefits, and clear pathways for growth.

What G4S can offer you

• A role with purpose: keep the community, the people in our care, and our staff safe and secure
• Career advancement: With 200 staff on site in varied roles, there's a variety of progression pathways
• Lots of time off: Work 3-4 shifts per week + 7 weeks of paid annual leave
• Paid training & uniform provided: Correctional Officers will gain a Cert 3 in Correctional Practice
• High earning potential: Approx. $70,000 to $80,000 p.a. + 12% Super + Overtime

About the roles

We're seeking Correctional Officers (COs) & Operations Support Officers (OSOs) with excellent communication and conflict resolution skills to join us at Mount Gambier Prison. COs work directly with prisoners, and OSOs have minimal prisoner contact.

The program is comprehensive and includes training in standard operating procedures, self-defence, radio training, report writing, first aid & CPR, communication skills, incident response, x-ray and ion scan screening, fire training, and more.

Our fully paid training program will start on Monday, 2 February 2026 with interviews to take place in late November 2025.

Correctional Officers

Our Correctional Officers work directly with prisoners and play a critical role in prisoner case management, monitor their rehabilitation activities, conduct daily searches and counts, undertake security patrols, write case notes and prepare reports.

• Rates - $60,351 p.a. for your training | $74,299 p.a. after training | $80,326 p.a. once fully accredited.
• Roster - 3 days a week | 12.5-hour shifts | Mix of weekdays, nights, weekends & public holidays.

Operations Support Officers

Our OSOs have minimal prisoner contact and conduct x-ray screening, search visitors upon entry, work in the prison property area, operate the prison control room, monitor CCTV and support key administrative prison functions.

• Rate - $70,416 p.a.
• Roster - 3 to 4 days a week | 8-hour to 12.5-hour shifts | Mix of weekdays, nights, weekends & public holidays.

What we're looking for

No qualifications or prior experience in corrections is required, it's your life skills that are highly valued in these roles. We're looking for the following:

• Able to work a rotating 24/7 roster, including public holidays & weekends
• Holder of an Australian driver's licence or probationary permit
• Physically fit and able to pass a medical assessment
• Full Australian working rights
• Happy to work in a non-smoking prison

The recruitment process

G4S runs a staged recruitment process which includes:

• Online Application: Complete an online application with a CV & cover letter
• Online Assessment: A 15-minute online assessment, where you'll also learn more about the role
• Phone Call: A phone call with a member of the Talent Team
• Interview: Onsite face-to-face interview at Mount Gambier Prison
• Site Tour: Group site tour of Mount Gambier Prison
• Background Checks: (national police check, reference checks, a medical assessment, and a prison clearance application).

Our fully paid training program will start on Monday, 2 February 2026 with interviews to take place in late November 2025.

About Mount Gambier Prison

G4S has operated Mount Gambier Prison (MGP) end-to-end since 1995, as a low to medium security campus style prison. Providing various work and education programs to male prisoners, our aim is to rehabilitate offenders and reduce re-offending. Accommodating 672 prisoners, our team at Mount Gambier Prison delivers safety, security, and respect for all prisoners in custody. There are numerous roles and opportunities for career development within the prison - with positions ranging from Correctional Officers, Industries Supervisors, Education Coordinators, Case Management Coordinators, Recreation Officers, Operational Support Officers, Management Roles, and Administration positions.

About Mount Gambier and the Limestone Coast

Mount Gambier, South Australia's largest regional city with a population of 35,724, is conveniently located almost midway between Adelaide (436 km) and Melbourne (441 km). The city offers a community-focused lifestyle and is well-equipped with educational facilities, including public and private primary and secondary schools, along with UniSA and TAFE SA campuses for various qualifications. Paired with affordable housing options, both rental and owned, it's easy to see why so many are choosing to make the move.

Beyond the city, the broader Limestone Coast region boasts access to some of South Australia's finest coastline, offering safe beaches, excellent recreational fishing, sailing, and surf. This area is further enriched by a world-class wine region, abundant open spaces, outstanding national parks, and diverse sporting and recreational facilities.

About G4S Australia and New Zealand

G4S, An Allied Universal Company is a leading security and facility services company that provides proactive security services and cutting-edge smart technology to deliver tailored, integrated security solutions. With a workforce of approximately 800,000 employees worldwide and over 2,000 across Australia and New Zealand, we leverage global best practices to help deliver our promise locally: keeping people safe so our communities can thrive. We partner with Government, industries and law enforcement agencies to deliver Integrated Security and Justice Services across a diverse range of portfolios, including Port Phillip Prison, Mount Gambier Prison, Prisoner Transport Operations, Court Security, Custody Centres, Corporate Security, Mobile Speed Cameras, our Support Offices, and more.

For more information about G4S Australia and New Zealand, please visit To explore a career with G4S, please visit To hear directly from our staff about why they enjoy working at G4S, visit