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Manual QA Engineer - Cybersecurity Scale-up!MCS Group • Belfast, Northern Ireland, United Kingdom
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Manual QA Engineer - Cybersecurity Scale-up!

MCS Group
  • GB
    Belfast, Northern Ireland, United Kingdom
  • GB
    Belfast, Northern Ireland, United Kingdom
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About

MCS Group are delighted to be working EXCLUSIVELY with a fast-growing cybersecurity scale-up specialising in modern mobile security and device protection. Their platform helps organisations keep employee devices safe by identifying vulnerabilities, risky settings, outdated software, and potential indicators of compromise - then guiding users through simple steps to fix them. They're addressing a major gap in the market by treating mobile devices with the same level of security and visibility as traditional enterprise endpoints. The company is well-funded, backed by strong industry partners, and has a clear long-term roadmap. The Belfast engineering team is at the heart of the product - working on core integrations, backend systems, and complex technical challenges that have real impact on the overall platform. The role We're looking for a
Senior QA Engineer
to take ownership of
end-to-end quality
across the product stack. You'll work closely with engineering and product teams to ensure new features are reliable, well-tested, and ready for release. This is a hands-on role with real influence over testing strategy, release readiness, and overall product quality. Key Responsibilities Execute
manual testing
across web applications, APIs, mobile apps (iOS & Android), and backend services Design and maintain
test plans, test cases, and regression suites Perform
exploratory and edge-case testing Validate
data accuracy and integrity
across backend systems and pipelines Test
REST APIs
using tools such as Postman or similar Log, track, and help triage defects with engineering teams Support release cycles and act as a
quality gate
before deployment Promote QA best practices and continuous improvement Requirements 5+ years' experience in QA, ideally in a senior or lead capacity Strong background in
manual testing
across web, API, and mobile platforms Experience testing
RESTful APIs Understanding of structured data (e.g. JSON, CSV) and backend validation Working knowledge of
SQL
for basic data checks Strong attention to detail and clear documentation skills Comfortable working in a fast-paced, changing environment Confident collaborating across multiple teams What's in it for you? Highly Competitive base salary, flexible dependant on experience. Unlimited PTO Pension contribution Steer the direction of a soon to be multi-award-winning product worldwide Ownership and freedom to put your own stamp on the work you do Join a team where all ideas are encouraged and welcomed Flexible working and remote working options - Must be able to commute to Belfast office at least once a week. To speak in absolute confidence about this opportunity please contact Rachael Walker, IT Recruitment Manager at MCS Group02896935487or click the apply button below. If this position is not right for you, we have others that are. Please visit MCS Group www.mcsgroup.jobs to view a wide selection of our current jobs or give us a call028 9023 5456. All conversations will be treated in the strictest of confidence.
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  • Belfast, Northern Ireland, United Kingdom

Languages

  • English
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