ethical security tester jobs in Belfast

Our client is seeking an Information Security Analyst to join their cyber security function, with a strong focus on vulnerability management, assurance and compliance. Reporting into the Head of Information Security, this role plays a key part in identifying, assessing and reducing cyber risk across the organisation, working closely with internal technology teams, managed service providers and...

You must hold active SC (Security Check) clearance

You will have achieved at least one of your CTM/CSTM/CRT qualifications, and will hold or be eligible for Check Status certification. What You'll Be Doing: - Perform penetration tests on networks, applications, and infrastructure.

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.

MCS Group is seeking a Software Test Engineer to join one of their closest clients, a fast-growing Insurtech firm. With huge investment onboard in 2025, this firm's technology function is planning to scale by over 50% in the first half of 2026 and this will include it's quality assurance division scaling. An exclusive role to MCS Group, the Software Tester will champion quality across their...

You will own the UK market from the first touchpoint to the final signature, selling directly to CTOs, Heads of QA, and Engineering Leaders.

You will be responsible for interactions with partners, third party vendors, employees, and a variety of internal and external stakeholders that require the team’s services.

You will also have the reassurance of a job guarantee (18K-£35K) upon completion.

You will also be assigned an expert tutor and a support mentor to help you throughout your training.

You will gain practical experience by using practice labs which enable you to practice and master what you have learned.

Job Title: Facilities Co-Ordinator Reporting to:Regional Senior Facilities Co-Ordinator Location:Belfast Contract Type:Permanent Overall Purpose of the Role To deliver high-quality facilities management (FM) services across the business, supporting staff, visitors, and stakeholders. The Facilities Co-Ordinator ensures the smooth operation of workplace services, maintains compliance, and...

You will also accumulate up to 5 service related holidays over your first five years of employment. Regular social events (staff and family).

Company Description Visa is a world leader in payments technology, facilitating transactions between consumers, merchants, financial institutions and government entities across more than 200 countries and territories, dedicated to uplifting everyone, everywhere by being the best way to pay and be paid. At Visa, you'll have the opportunity to create impact at scale tackling meaningful challenges,...

Role Title: Senior Engineer Fixed Term Contract (Operations) Reports to: Head of System Operations Location: Belfast (Hybrid) Duration: 30 Month Fixed Term Contract About us SONI as Transmission System Operator (TSO) is responsible for the safe, secure and reliable supply of electricity now and in the future. We have a pivotal role in the economy of Northern Ireland, supporting competition in...

Job Description: SECURITY CLEARANCE: Eligibility to gain UK SC Security Clearance OR You will be subject to BPSS and Export Control checks (including a criminal record check) TRAVEL REQUIRED: Occasional LOCATION: Belfast TYPE: Full time / Part time / STEM returner WHAT'S IN IT FOR YOU Financial Reward: Competitive salary, annual profit share, contributory pension, share options, Work / Life...

Location: Belfast, United Kingdom Thales people architect solutions that are relied upon to deliver operational advantage at every decisive moment throughout the mission. Defence and armed forces customers rely on us to deliver the full range of defensive systems for land, sea, and air. From early warning, to threat neutralisation, our platforms cover all levels from very short-range systems, to...

Senior Performance Engineer - UK Ready to Make a Real Impact? Join e-STORAGE! Who We Are Welcome to e-STORAGE, a proud member of the Canadian Solar Inc. (NASDAQ: CSIQ) family! We’re leading the way in designing, building, and integrating advanced battery energy storage systems for utility-scale projects. Our mission? To accelerate the world’s renewable energy transition and create a more...

Global University Systems is building a modern AI platform to power how our universities recruit, teach, support, and serve students. The Director of AI will lead this transformation, turning promising ideas into production-grade AI solutions that create real value for students and staff. This role owns the AI roadmap end-to-end: from identifying high-impact use cases, to running rapid...

You will drive the adoption of modern AI frameworks, AIOps best practices and scalable cloud-native architectures.

You will do this whilst learning about new technologies and approaches, with talented colleagues that will help you to develop and grow.

You will support your colleagues and more junior developers, providing direction support as you solve challenging problems together.

We’re looking for a highly skilled Lead Penetration Tester with CHECK Team Lead (CTL) status to join our dynamic security team. This is a senior, hands-on role where you’ll lead and deliver complex penetration testing engagements across infrastructure, cloud, web, and mobile applications for a diverse range of clients, including software, fintech, manufacturing, engineering, legal, and public...

MCS Group is delighted to be partnering with one of our closest clients, a rapidly scaling Insurtech firm, to recruit a Software Test Engineer at a hugely exciting time for the business. With significant investment secured for 2025, the technology team is set to expand by over 50% in the first half of 2026, including major growth within the testing function. This exclusive opportunity will see...

Job Description: SECURITY CLEARANCE: You will be subject to a BPSS check (including a criminal record check) TRAVEL REQUIRED:Occasional Travel in the UK LOCATION-Belfast WHAT'S IN IT FOR YOU Financial Reward: Competitive salary Personal Development: Health & Wellbeing: Family and Caregiving: About the Role Airframe Transverse Design Methods and Tools (1AMRT) is seeking to complement its team with...

You will be part of a dynamic global team, supporting both internal and external stakeholders. HOW YOU WILL CONTRIBUTE TO THE TEAM Ensure compliance with export licences, regulatory obligations, and Airbus Export Control Directives Represent Airbus in interactions with UK government agencies and export control forums Manage UK, EU, and US export licences, agreements, and legal reporting procedures.