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We're Recruiting Correctional Officers

Explore a career in Corrections at Mount Gambier Prison, where safety, security and programs for offender rehabilitation keep the community safe and reduce reoffending.

About Mount Gambier Prison

Mount Gambier Prison in South Australia is a low to medium-security campus-style prison that offers progressive work, learning and community programs to manage and rehabilitate offenders.  With capacity for 653 inmates, it accommodates mainly male prisoners who have been sentenced or are on remand.  G4S has been operating Mount Gambier Prison on behalf of the South Australian Department for Correctional Services for more than 20 years.

The role of a Correctional Officer
Correctional Officers are skilled and trained to supervise prisoners, conduct patrols, and contribute to the general security and good order of the prison.  They play a critical role in prisoner rehabilitation and case management by helping prisoners set longer-term goals and achieve them.  The role also includes collating information, writing case files, and preparing a variety of reports, which are read by Government and law enforcement agencies.
The role of a Operational Support Officer
Operational Support Officers are non-Correctional Officers who perform duties in areas including the reception/gatehouse, control room, property and kitchen.  The role maintains security, surveillance of the prison and ensures all contractors and visitors are escorted and supervised whilst on site.  Operational Support Officers wishing to become Correctional Officers must complete further training, which includes five weeks shadowing Correctional Officers, commencing a Certificate 111 in Custodial Practice, and Defensive Tactics training.
About the roster
Working as a Correctional Officer or Operational Support Officer involves 24/7 shift work, including nights and weekends.

Correctional Officers earn $56,296 plus super during their initial 8 weeks of training, $69,318 plus super and overtime in Year 1, then $73,885 plus super and overtime in Year 2.  Operational Support Officers earn $56,296 for their initial 7 weeks training, and then $65,682 plus super after training, with regular pay increases.

How to Apply
The first step is to register and apply online via  You will receive a confirmation email once you have successfully submitted your application.  A member of the Talent Acquisition Team will then guide you through the recruitment process below.  If you require assistance, please email
Recruitment Process

Please allow approximately 8 weeks for the recruitment process.

Once you've applied online, we'll send you a Virtual Job Preview to complete.  This should take about 20 minutes and will include some video and written questions.

Shortlisted applicants will then be invited to attend a Group Assessment.

If successful after the Group Assessment, the G4S Talent Acquisition team will then email you a series of items to complete and return:

  • Your ID
  • National Police and Reference Check Form.

You will also need to complete and pass a pre-employment medical assessment.

Upon passing, you'll receive an employment contract plus a final set of Onboarding Forms to complete.

About the Virtual Job Preview

G4S uses a platform called Vervoe to run candidates through a Virtual Job Preview.  When you log in, you will see a video from the recruiter managing your application.  During your Virtual Job Preview, you’ll gain information on the role, site and culture.  You’ll learn about who we are as an organisation and how we like to work, which will help you determine if the job might be right for you.  You’ll also be asked some questions from our side to check you have what’s required to succeed in the role.

In around 15-30 minutes, your recruiter will present you with on-screen scenarios and questions.  By answering the questions via video, text or uploading a file, you’ll get to show us your skills and tell us who you are in a way a CV can’t.

It’s a chance to:

  • Explain how you would handle real-world scenarios
  • Show us who you really are
  • Differentiate yourself from other candidates. 

Your Virtual Job Preview will fast track your application. 

Other benefits include: 

  • The convenience of responding from anywhere with no need to commute
  • Short videos and quick questions, rather than multiple pages on our website to read through
  • A fairer recruitment process where you show us your personality and explain your transferable skills.

Your Virtual Job Preview doesn’t replace a face-to-face interview.  If it goes well, your recruiter will still organise for you to have a face-to-face interview and if you secure the job, the time you invest in the process will help you settle in.

About Group Assessments
Working as a Correctional Officer or Operational Support Officer requires communication, teamwork and leadership skills.  To assess these skills, we run Group Assessments with both individual and group activities.

As an individual, you’ll be asked to complete some simple numeracy and literacy tests.  You’ll also be asked to consider a scenario and prepare a written incident report.  In the role these reports are read by government and law enforcement agencies.  The goal is to show your visual capability, attention to detail and memory.

As a group, you’ll have time to meet supervisors and the senior management team over coffee, which is a chance to ask questions and learn more about the role.

The interview process is one-on-one and will involve meetings with supervisors and senior managers.  Located in individual meeting rooms, they will ask you interview questions and invite you to ask questions. 

The focus of the afternoon will be working on tasks together in teams, where the management team will observe and assess your time management and collaboration skills.
What to expect on the first day

On your first day, you will meet the other recruits and your squad leaders, who will guide and support you through the 5-week induction program.  You’ll meet the General Manager of the prison and other support functions who will explain their roles, how they will support you during your career, our vision and values and how you fit in. 

The first week of your training is classroom based and will give you the foundational knowledge of the corrections system, the prison environment and the kinds of tasks and duties a Correctional Officer does.  After that, you will spend 2 weeks shadowing experienced staff on the floor and learning how the prison works.

What training is provided?

Both Correctional Officers and Operational Support Officers undertake a 7-8 week, fully paid, purpose-built training program. 

To equip you with the skills and knowledge to excel, it includes a mix of classroom learning, on-the-job training, shadowing, and practical skill development.  You will be guided and supported by experienced squad leaders who will mentor you during the program.  There are plenty of opportunities for you to ask questions and get hands on experience to ensure you feel confident and capable to step onto the floor after you complete your initial training. 

In your first 12 months as a Correctional Officer, you'll complete a Certificate III in Correctional Practice from Gordon TAFE.  This is a nationally recognised qualification.

Benefits of the role
  • A quick start with Assessments followed by Paid Training
  • Great earning potential and lots of time off
  • 5 weeks' Annual Leave
  • Correctional Officers: Earn $69,511 + overtime + super in Year 1, then $74,081 + overtime + super in Year 2
  • Operational Support Officers: Earn $65,864 per annum, with regular pay increases
Eligibility Criteria
  • You must be available to work 24/7 shift work, including nights and weekends.
  • A positive role model who can influence prisoners' behaviour, work in close-knit teams, and follow procedures and protocols.
  • High level of both physical and mental fitness (See our flyer for information on How to prepare for a Medical Assessment).
  • Life experience - we look for applicants who show maturity in their attitudes and decisions.
  • Diversity - we recognise and value having a diverse workforce and welcome applications from people of all different backgrounds, industries, experience levels and qualifications.
  • Communication skills - excellent written skills, clear and concise verbal skills, the ability to listen, build rapport and adapt to people from all different walks of life.
  • Negotiation skills - proven ability to resolve conflict and make good judgements.
  • Discipline and commitment to ongoing health and wellbeing.
  • Resilience - an ability to succeed under pressure without compromise.
  • Hold a Current Senior First Aid Certificate (Desirable).
Apply Now
To apply please visit, search for Correctional Officers then follow the prompts. 

If you require assistance, please contact the Talent Acquisition Team by emailing

Frequently asked questions 

How long is the training and what does it Involve? 
Training runs for 8 weeks, with a mix of classroom training and practical on the job training, which will involve shadowing Accredited Officers.  Classroom training will run for 3 weeks, and on the job training will run for 5 weeks.
What is the difference between an Operational Support Officer and a Correctional Officer?
A Correctional Officer is responsible for direct supervision of prisoners, patrols in secure areas, and prisoner case management.  An Operational Support Officer is a non-Correctional Officer who maintains security, surveillance, and visitor management of the prison.
Can I move between a Correctional Officer and Operational Support Officer role, or vice versa?
Operational Support Officers wishing to become Correctional Officers must complete further training, which includes five weeks shadowing Correctional Officers, commencing a Certificate 111 in Custodial Practice, and Defensive Tactics training.
Will I do the paid training if I am selected as an Operational Support Officer?
As an Operational Support Officer, you will complete most of the same training as a Correctional Officer, apart from the defensive tactics training.
Will I be provided a uniform?
You will be provided with a uniform, including boots.

About G4S

Justice Services
G4S Justice Services support the Australian justice system by helping government and law enforcement agencies to mitigate the impact of crime on resources, infrastructure and the economy.  These staff work in correctional facilities, courts, police custody, electronic monitoring, prisoner transport, and offender rehabilitation, as Correctional Officers, Prisoner Transport Officers, Nurses, Clinicians, Support Officers and Custody Officers.

By managing people in prison and delivering safety, security and respect for people in custody, including transporting and escorting offenders, G4S keeps communities safe and reduces re-offending.  Clients include State Government Departments for Justice and Community Safety, Corrections, Police, Social Services and Forensic Health, in Victoria, South Australia, New South Wales and Western Australia.
Equal Employment Opportunity Employer
G4S celebrates and supports diversity and is proud to be an Equal Opportunity workplace.  Our culture is one of inclusiveness and our goal is to welcome and retain staff who represent the whole community.  People from diverse backgrounds bring valuable perspectives, experiences and knowledge.  We welcome applications from people of all backgrounds and walks of life. 
Jobs for First Nations People
G4S is committed to ensuring our workforce is not only reflective of the communities in which we operate but is equipped and capable of providing the best support for our employees, those in our care and their families.  This includes respecting and supporting First Nations employees at G4S and working to increase their representation in our workforce.  To improve employment outcomes and increase First Nations recruitment and retention, our jobs for Aboriginal people include access to a Cultural Mentoring Program, Aboriginal Employee Network, and Professional Development.