senior penetration tester Work, Jobs in belfast (with Salaries)

Senior Penetration Tester - CTM
Instil —Belfast
- Full-time
- Windows
- Scripting
- Computer networking
- Employee assistance programme
Senior Penetration Tester
Instil Software Ltd —Belfast
- Full-time
- Hybrid work
- Azure
- AWS
- Scripting
- Employee assistance programme
Senior Penetration Tester
Instil —Belfast
- Full-time
- Hybrid work
- Azure
- AWS
- Scripting
- Employee assistance programme
Senior Penetration Tester - CTM
Instil Software Ltd —Belfast
- Full-time
- Remote
- Windows
- Scripting
- Computer networking
- Employee assistance programme
Lead Penetration Tester - CTL App
Instil —Belfast
- Full-time
- Azure
- AWS
- Scripting
- Employee assistance programme
Lead Penetration Tester - CTL App
Instil Software Ltd —Belfast
- Full-time
- Remote
- Azure
- AWS
- Scripting
- Employee assistance programme
Information Security Analyst
Peak6 —Belfast
- Java
- Bachelor's degree
- Scripting
- Annual leave
- Flexible schedule
Information Security Sr Analyst
Peak6 —Belfast
- Java
- Analysis skills
- Bachelor's degree
- Annual leave
- Flexible schedule
13d

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Senior Penetration Tester - CTM
Instil —Belfast
At least 2+ years of penetration testing experience. You will play a critical role in delivering high-quality penetration testing engagements across…
Senior Penetration Tester
Instil Software Ltd —Belfast
Identify vulnerabilities, validate exploitability, and clearly articulate risk. Experience with capture‑the‑flag platforms, labs, or challenge‑based learning.

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Senior Penetration Tester - CTM

Instil -
Belfast

Apply Now

Job details

Full-time

Benefits

Company pension
Employee assistance programme
Private medical insurance

Qualifications

Penetration testing
Operating systems
Windows
Scripting
Burp Suite
Computer networking
Linux
Nmap
Python
Active Directory

Full job description

Location

Belfast

Address

Belfast, Northern Ireland

Employment Type

Full time

Location Type

Remote

Department

Cyber Security

OverviewApplication

We are looking for a Senior Penetration Tester with CHECK to join our growing team. You will play a critical role in delivering high-quality penetration testing engagements across infrastructure, cloud, web, and mobile applications for a diverse range of clients, including software, fintech, manufacturing, engineering, legal, and public sector organisations.

This is a hands-on role where your expertise will help identify and remediate security weaknesses, while contributing to the development of our methodologies and mentoring junior testers. If you’re passionate about offensive security and want to work on varied, challenging projects in a supportive environment, we’d love to hear from you.

Essential Skills

CHECK Team Member (CTM) status
Current UK Security Clearance.
At least 2+ years of penetration testing experience.
Strong experience with web application and network penetration testing methodologies.
In-depth knowledge of operating systems (Linux, Windows, Active Directory).
Familiarity with cloud environments and ability to perform cloud security reviews.
Proficiency with tools such as BurpSuite Pro, Nmap, Nessus, and Kali Linux.
Knowledge of scripting languages (Python, Shell, etc.).

Nice-to-Have

CHECK Team Lead (CTL) status (Infrastructure or Applications).
Relevant certifications (OSCP, Cyber Scheme).
Experience with Hack the Box or Capture the Flag simulations.

Why Join Instil?

At Instil, we believe great work starts with happy, motivated people. That’s why we’ve built a benefits package that supports your wellbeing, growth, and life outside of work, because when you thrive, so do we.

Recognition That Matters: A discretionary annual performance bonus that rewards your impact and contribution to our success.
Flexibility Built In: Flexible working arrangements and summer hours, because life isn’t 9 to 5, and balance matters.
Financial Security: A highly competitive pension scheme with generous employer contributions, private healthcare, and life assurance for peace of mind.
Health & Wellbeing: Employee Assistance Programme, mental health support, cycle-to-work scheme, and regular social events to keep our culture vibrant.
Time to Recharge: 35 days holiday, enhanced maternity pay, and family-first policies so you can focus on what matters most.
Learning Never Stops: From courses to certifications, we’ll invest in your development so you can keep growing and shaping what’s next.
Community & Culture: Opportunities to volunteer, give back, and be part of initiatives that make Instil a truly inclusive and connected workplace.

And that’s just the start, drop us a note to find out more.

Company Description

Instil has been delivering world-class software engineering and technology solutions for over 20 years, trusted by global brands to solve complex challenges and drive innovation. From modernising legacy systems to building cutting-edge applications, we help our clients navigate an ever-changing digital landscape with confidence and agility.

We’re proud to be an award-winning employer, reflecting how our people are at the heart of everything we do:

Recognised as a Great Place to Work® for three consecutive years, and in 2024 ranked in the Top 20 Best Workplaces in the UK for medium-sized companies.
Winner of Company of the Year at the Digital DNA Awards 2022, celebrating excellence in Northern Ireland’s tech sector.

Driven by a love for technology and a commitment to excellence, we bring together people who want to make a difference. We’ll support your journey, because your success is part of ours.

#LI-PR1 #InstilCareers

Apply Now

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Senior Penetration Tester - CTM