Information Security M&A Specialist at Grant Thornton - Americas

Dublin, Leinster, Ireland -

Full Time

Start Date

Immediate

Expiry Date

20 May, 26

Salary

0.0

Posted On

19 Feb, 26

Experience

5 year(s) or above

Remote Job

Yes

Telecommute

Yes

Sponsor Visa

Skills

Technical Due Diligence, Cybersecurity Assessments, Integration Readiness, OSI Layers 2-7, Infrastructure Review, Network Architecture, Identity Platforms, Cloud Environments, Application Layers, Cybersecurity Risk Analysis, Stakeholder Engagement, M365 Integration, EDR/XDR, SIEM, IAM/PAM, Vulnerability Management

Industry

Professional Services

Description

Information Security M&A Specialist The Technical M&A Specialist plays a key role in supporting the organisation’s global acquisition strategy by delivering technical due diligence, cybersecurity assessments, and integration of readiness evaluations. The successful candidate will provide expert technical insight across OSI Layers 2–7, ensure technology and security standards are met, and communicate findings effectively to diverse stakeholders across multiple regions. This role requires exceptional communication skills, technical depth, and the ability to engage with stakeholders whose first language may not be English. Clear spoken English diction and excellent written communication are essential. This position will be on a 6/12 month FTC. Key Responsibilities Technical Due Diligence & Assessment Conduct detailed technical cybersecurity assessments of acquired or prospective entities, covering infrastructure, network architecture, identity platforms, endpoints, cloud environments, and application layers. Review and assess documentation such as technical questionnaires, due‑diligence reports, architecture diagrams, and security artefacts. Identify potential security, operational, or architectural gaps that could impact integration timelines or organisational risk posture. Cybersecurity Risk Analysis & Advisory Evaluate the cybersecurity maturity of target organisations and identify areas requiring uplift. Provide structured, actionable recommendations to improve security posture. Present technical findings in a clear, business‑aligned format suitable for senior leadership and non‑technical audiences. Integration Planning Support Contribute to planning activities for technology integration including M365, cloud identity, endpoint security, and network consolidation. Collaborate with security, architecture, engineering, GRC, and programme teams to ensure alignment with corporate standards. Support the development of integration roadmaps, risk logs, and readiness documentation. Stakeholder Engagement Liaise with acquired entities’ technology teams to clarify expectations, dependencies, timelines, and technical requirements. Facilitate technical workshops, knowledge‑sharing sessions, and deep‑dive discussions. Maintain effective communication with internal stakeholders across multiple regions and time zones. Communication & Documentation Prepare formal reports, technical assessments, and executive‑ready presentations. Deliver clear and concise verbal briefings, ensuring concepts are communicated in accessible and structured English. Maintain high documentation standards consistent with organisational governance requirements. Required Qualifications Technical Requirements Proven experience in technical M&A, IT due diligence, cybersecurity assessment, or technical integration. Strong understanding of networking and cybersecurity across OSI Layers 2–7, including routing, switching, DNS, encrypted traffic inspection, identity, and application behaviour. Hands‑on familiarity with tools such as EDR/XDR, SIEM, DLP, IAM/PAM, logging platforms, and vulnerability management technologies. Communication & Interpersonal Skills Excellent written communication and professional report‑writing ability. Clear, fluent spoken English with strong diction — essential for communication with teams where English is not the first language. Strong presentation skills and experience engaging senior stakeholders. General Requirements Bachelor’s degree in Computer Science, Cybersecurity, Engineering or equivalent professional experience. Strong analytical and problem‑solving abilities, with attention to detail. Ability to work in a high‑paced environment and manage multiple concurrent assessments. Preferred Technical Qualifications (Highly Desirable) Advanced technical certifications, such as: GIAC: GSEC, GCIA, GPEN, GREM, GCIH, GCFA Offensive Security: OSCP, OSWP, OSEP Cisco: CCNA, CCNP Security, CCIE Security Microsoft: Azure Security Engineer (AZ‑500), Cybersecurity Architect (SC‑100) AWS: Security Specialty Experience using EDR/XDR, SIEM, DLP, NGFW/WAF, IAM/PAM, packet analysis, and cloud security tooling. Strong understanding of network protocols, traffic analysis, packet capture inspection, and encrypted traffic inspection concepts. Experience with cloud identity technologies, tenant‑to‑tenant migrations, and identity federation (SAML, OAuth, OIDC). Knowledge of endpoint hardening and secure configuration baselines across Windows, Linux, and network devices. Ability to technically validate remediation, uplift, and integration configurations at network, identity, cloud, and endpoint levels. #LI-KS1 We are Grant Thornton Grant Thornton Ireland is rapidly approaching 3,000 people, in 9 offices across Ireland, Isle of Man, Gibraltar and Bermuda. With a presence in over 149 countries around the world and a global network of 73,000 people, we bring our clients the local knowledge, national expertise and global presence to help them succeed – wherever they’re located. At GT, we work as trusted advisors, bringing local knowledge and national expertise, with a global presence, to help businesses succeed – wherever they are located. We make business more personal by investing in building relationships and empowering our clients to make the right decisions for their organisation now and for the future. Whether that is working with the public sector to build thriving communities, with regulators and financial institutions to build trust, or with a diverse range of businesses to help them achieve their goals, Grant Thornton Ireland work hard to support clients to act on the issues that matter. At GT Ireland we don’t just predict your future, we build it. A Career at GT Looking for a more fulfilling role in professional services? One where fresh thinking, collaboration and diversity are valued? At Grant Thornton we do things differently. What does this mean for you? A career in a more inclusive working environment, a more collaborative work culture, a more supported, flexible working role, more possibilities to grow and more opportunities to help shape the future for your clients. We respect and value your experience. And we want you to bring your authentic self to work and be at your best. It is how it should be. Grow with us At Grant Thornton, we care about our people and work hard to make you feel valued. If you are looking to deepen and develop your skills, knowledge, and experience throughout your career, then that is what you will get, and more. Our Benefits Please follow this link for information on our generous benefits package. Equity, diversity and inclusion At Grant Thornton, we provide equitable opportunities for all our colleagues. We are a responsible, sustainable business where equity, diversity and inclusion (ED&I) is at the forefront of our workplace culture agenda, and today, we continue to build and develop on our existing ED&I structure and strategy to meet our workplace culture needs. People are at the heart of our business and teams built with varied individuals present diverse viewpoints, which need to be heard and valued. We are all at our best when we are able to be ourselves and we view integrity and authenticity as integral values to bring to our day-to-day work-life at the firm. We are excited to see the personality and perspectives you will bring to our team because we know we will all benefit from them. Diversity of thought, background and experience enables better decision-making, improves the quality of our delivery, and helps us to meet the needs of our clients. Our firm is built on people and their ideas, so we want to hear all the new perspectives and fresh thinking you have to offer. You form the bedrock of our firm’s best-practice principles and we will champion you as leaders from day one. Reward and benefits Our reward and benefits are designed to create an environment where our people can flourish. We are committed to building a culture where our people have access to the necessary benefits to help promote a healthy lifestyle and thrive. Recognition We want to create a culture of recognition and celebrating success, by saying thank you to people who surpass our expectations and recognising the right values and behaviours. Our Shout Out recognition scheme is our way of highlighting and promoting achievements. Whether you simply want to say thank you, celebrate a special occasion or give an award for doing something exceptional, you can do all of this and more through the scheme.

Responsibilities

The specialist supports global acquisition strategy by conducting technical due diligence, cybersecurity assessments, and integration readiness evaluations for acquired entities. Key duties involve analyzing technical documentation, assessing security maturity, providing actionable recommendations, and supporting technology integration planning across various security and engineering teams.