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Lead Telecoms Security Act compliance and Ofcom engagements, validate technical evidence, assess risks and controls, align frameworks (NCSC CAF, ISO27001), support governance, and oversee third-party security and contractual obligations across engineering, security, and operations.
This role is responsible for leading Nasstar’s compliance with the Telecoms Security Act (TSA) and associated Ofcom regulatory requirements, ensuring the organisation can evidence a robust and defensible security posture.
As a key member of the Risk & Compliance function, this role operates at the intersection of regulation and technology, partnering closely with engineering, security, and operational teams to translate regulatory expectations into practical, real-world control effectiveness.
This is a high-impact role with visibility across senior stakeholders and direct relevance to the protection of critical national infrastructure.
Key Responsibilities
TSA Compliance & Regulatory Engagement ·
- Lead delivery of Telecoms Security Act compliance activities.
- Coordinate responses to Ofcom information requests and regulatory submissions.
- Interpret TSA Code of Practice measures and translate into business and technical actions.
Technical Assurance & Evidence Validation
- Partner closely with Core Engineering, Voice, OSS, Operations, Procurement and IT & Security teams to gather required information.
- Review and validate technical, architectural, and operational evidence.
- Provide effective, evidence-based challenge and ensure submissions are complete, accurate, and aligned to regulatory expectations.
Risk & Control Assessment
- Identify gaps in evidence, control weaknesses, and areas requiring remediation.
- Assess adequacy of compensating controls where full compliance is not achieved.
- Apply risk scoring in line with Nasstar’s risk management framework.
- Focus on risks impacting Security Critical Functions and supporting network oversight capabilities.
Framework Alignment & Governance
- Align TSA requirements with broader frameworks such as NCSC CAF, ISO 27001 and HSCN.
- Support governance reporting and risk committee discussions.
- Contribute to the development of internal assurance and control frameworks.
Third-Party Security & Contractual Oversight
- Review and advise on supplier contracts to ensure security obligations are appropriate and enforceable.
- Support Legal & Procurement with security requirements and risk considerations.
- Contribute to third-party risk and assurance activities.
Skills, Knowledge and Expertise
Experienced in one or more of the following areas:
- Telecoms or network service provider environments
- Cyber security, network security, or infrastructure security
- Risk, compliance, or regulatory assurance within technology functions
- Supporting or responding to regulatory frameworks (e.g. TSA, NCSC CAF, ISO 27001, NIS)
Experience operating in a second line (GRC) or assurance capacity, rather than hands-on engineering or operational delivery
Ability to engage with asset owners and technical SMEs to:
- Extract relevant control evidence
- Validate that controls are appropriately designed and operating
- Challenge where control coverage or assurance appears insufficient
Ideally at least one certification from the following:
(ISC)² / ISACA:
CISSP – Certified Information Systems Security Professional CISM
Certified Information Security Manager CRISC
Certified in Risk and Information Systems Control
Industry Network Security Certifications (desirable):
CCNP Security / CCSP / CCNA Security CompTIA Security+ / Network+
Equivalent vendor or industry-recognised certifications
(ISC)² / ISACA:
CISSP – Certified Information Systems Security Professional CISM
Certified Information Security Manager CRISC
Certified in Risk and Information Systems Control
Industry Network Security Certifications (desirable):
CCNP Security / CCSP / CCNA Security CompTIA Security+ / Network+
Equivalent vendor or industry-recognised certifications
Demonstrated ability to interpret technical concepts and align them to security or regulatory requirements. And assess control effectiveness and identify gaps or weaknesses.
Experience within a regulated telecoms environment, particularly under either Telecoms Security Act (TSA) or Ofcom regulatory engagement.
Experience within a regulated telecoms environment, particularly under either Telecoms Security Act (TSA) or Ofcom regulatory engagement.
Benefits
At Nasstar, we know the importance of looking after our employees – after all, it’s the team that underpins our business!
In addition to a competitive salary, supportive teams, and a real opportunity to progress in your career with a forward-thinking organisation, our benefits package includes:
- 25 days’ holiday (excluding bank holidays) + Your Birthday Off
- Flexible working – it’s important to maintain a work/life balance, as such, we will consider any written request for flexible working
- Virtual working – we practice what we preach and empower our people to work remotely
- Top tech – Leading services and solutions aren’t just for our clients; we supply best-of-breed software and hardware for all our staff too
- 4x annual salary life assurance
- Health cash plan
- Retail discounts and other perks from major brands
About
We are passionate about helping businesses navigate the rapidly changing and complex world of emerging technologies. We create well-structured, secure, scalable solutions at speed to provide the foundation for groundbreaking change.
Nasstar Belfast, Northern Ireland Office
Belfast, United Kingdom
What you need to know about the Belfast Tech Scene
If asked to name the birthplace of the RMS Titanic, you might not say Belfast. Similarly, if asked to name Europe's leading destination for foreign direct investment in new software development, Belfast might not come to mind. Yet, both are true. The city has emerged as a tech powerhouse, recently ranked among the best in the U.K. for tech careers — especially for software developers. It also leads the U.K. with the highest percentage of software development jobs advertised.
