83 Network Security jobs in Ireland

SMBC Group is a top-tier global financial group. Headquartered in Tokyo and with a 400-year history, SMBC Group offers a diverse range of financial services, including banking, leasing, securities, credit cards, and consumer finance. The Group has more than 130 offices and 80,000 employees worldwide in nearly 40 countries. Sumitomo Mitsui Financial Group, Inc. (SMFG) is the holding company of SMBC Group, which is one of the three largest banking groups in Japan. SMFG's shares trade on the Tokyo, Nagoya, and New York (NYSE: SMFG) stock exchanges.
In the Americas, SMBC Group has a presence in the US, Canada, Ireland, Mexico, Brazil, Chile, Colombia, and Peru. Backed by the capital strength of SMBC Group and the value of its relationships in Asia, the Group offers a range of commercial and investment banking services to its corporate, institutional, and municipal clients. It connects a diverse client base to local markets and the organization's extensive global network. The Group's operating companies in the Americas include Sumitomo Mitsui Banking Corp. (SMBC), SMBC Nikko Securities America, Inc., SMBC Capital Markets, Inc., SMBC MANUBANK, JRI America, Inc., SMBC Leasing and Finance, Inc., Banco Sumitomo Mitsui Brasileiro S.A., and Sumitomo Mitsui Finance and Leasing Co., Ltd.
+ This is a hybrid role, requiring the successful candidate to attend our Tralee office.
+ Occasional scheduled Saturday work required.
**Role Description**
SMBC is seeking a Network Security Engineer who has a strong passion for Security Systems and is interested in building a career at a fast growing and reputable

**Our Purpose**
_Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we're helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential._
**Title and Summary**
Senior Network Security Engineer (Checkpoint)
Network Engineering team is looking for dynamic & experienced network professional to work on implementation, security and support of large multi-site, robust multi-vendor network environments.
Major Accountabilities:
o Manage and implement medium to complex networks in multi-domain environments working on industry leading technologies & platforms.
o Partner with design and platforms teams, implementing network designs as per requirements defined. Working on new, as well as re-architecting network segments to facilitate new requirements, technologies, and growth.
o Be able to effectively triage and conduct effective problem solving.
o Good communication, accountability and attention to detail are important soft skills
o Support regional projects, which include responsibility for planning, time, and implementation.
o Ability & desire to automate processes and tasks to increase efficiency.
Education:
o Bachelor's degree in computer science, Math, or Engineering or equivalent combination of education and experience.
o Industry leading certification (Cisco, Checkpoint, Arista, etc) desirable but not compulsory
Knowledge / Experience:
o 5+ Years IT experience in the following areas:
o Skills and knowledge on network automation/scripting such as Python, Ansible.
o Proven experience & hands on knowledge on Fundamentals of Network engineering and operations.
o Experience of managing and deploying medium to large scale networks using such as Cisco, Palo Alto, Aruba, Arista & Checkpoint.
o Awareness of Project Management methodology and best practices.
o Strong hands-on knowledge of Network diagnostics, BGP, VPN, DMVPN, MPLS, SD-WAN
o Strong understanding of Network Architecture and new trends - Traditional, Cloud, Spine/Leaf, segmentation.
o Good knowledge and hands-on experience of firewalls and other security methods.
o Experience creating and maintaining detailed process documentation.
Skills/ Abilities:
o Strong verbal and written communications skills.
o Self-starter with demonstrated listening skills.
o The ability to adapt and willingness to learn new technologies as required.
o Team player and equally strong individual contributor.
o Limited supervision: work may be reviewed for direction and strategy.
Working condition
o May require occasional local/domestic travel within country
o Should be open to working occasional weekends/weeknights for planned work.
**Corporate Security Responsibility**
All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must:
+ Abide by Mastercard's security policies and practices;
+ Ensure the confidentiality and integrity of the information being accessed;
+ Report any suspected information security violation or breach, and
+ Complete all periodic mandatory security trainings in accordance with Mastercard's guidelines.

SMBC Group is a top-tier global financial group. Headquartered in Tokyo and with a 400-year history, SMBC Group offers a diverse range of financial services, including banking, leasing, securities, credit cards, and consumer finance. The Group has more than 130 offices and 80,000 employees worldwide in nearly 40 countries. Sumitomo Mitsui Financial Group, Inc. (SMFG) is the holding company of SMBC Group, which is one of the three largest banking groups in Japan. SMFG's shares trade on the Tokyo, Nagoya, and New York (NYSE: SMFG) stock exchanges.
In the Americas, SMBC Group has a presence in the US, Canada, Ireland, Mexico, Brazil, Chile, Colombia, and Peru. Backed by the capital strength of SMBC Group and the value of its relationships in Asia, the Group offers a range of commercial and investment banking services to its corporate, institutional, and municipal clients. It connects a diverse client base to local markets and the organization's extensive global network. The Group's operating companies in the Americas include Sumitomo Mitsui Banking Corp. (SMBC), SMBC Nikko Securities America, Inc., SMBC Capital Markets, Inc., SMBC MANUBANK, JRI America, Inc., SMBC Leasing and Finance, Inc., Banco Sumitomo Mitsui Brasileiro S.A., and Sumitomo Mitsui Finance and Leasing Co., Ltd.
+ This is a hybrid role, requiring the successful candidate to attend our Tralee office.
**Role Description**
As a Cyber Incident Response Analyst, you will be a key part of a high performing SOC team, with a desire to continually improve and advance our capabilities to protect SMBC Group. You will bring your passion for Cybersecurity to a team of like-minded professionals and leverage this passion to ensure our monitoring and response capabilities are effective and efficient and that we keep pace with a rapidly changing threat landscape.
You will relish your core role in supporting the monitoring and response of cyber security alerts and incidents by digging into and investigating them to find the root cause and identifying the gap in controls that allowed a threat to reach that point in the kill chain. If you identify an incident, you will lead that technical analysis, tracking down the actions of that threat actor as part of the incident response, while supported by the wider Incident response process and members of the SOC and CSIRT teams. If you identify a false positive, you will drive the effort to tune or refine our detections, or to drive improvements to our preventative controls to prevent a recurrence, freeing more time for the SOC to focus on improving our skills and capabilities. With your knowledge and expertise, you will develop and hone the SOC through work-product review, mentoring, and ownership of projects to develop the technical capabilities of the SOC.
As part of a wider team of SOC analysts, you are able to focus on an area you are passionate about, or if sufficiently experienced, take the lead. You will develop deep expertise and expand our capabilities in domains ranging from across Purple Teaming, Threat hunting, Digital Forensics and Incident Response (DFIR), Security Automation, Detection Engineering and Threat Intelligence and share this knowledge to develop the depth of knowledge of the SOC. As part of a Financial Group with offices and data centers across the Globe, you will have access and exposure to leading technologies and tools. If there is a gap in our toolset, you can help us identify and bridge that gap by acting as Subject Matter Expert to do so. You will bring fresh ideas, challenge the status quo, and seek always to answer - how can we improve?
This role is best suited for candidates who enjoy and have experience within SOC or CSIRT teams and enjoy investigating and finding the root of an issue or incident and working on getting the most from leading edge security toolsets and platforms and processes. Candidates who excel will think critically to find ways to resolve security challenges. This role would suit an experienced and self-motivated cyber security professional with strong technical skills and knowledge combined with a passion for cyber security.
Note: Expectation is to be onsite once a month for this role.
**Role Objectives**
-Act as technical lead in the development and enhancement of capabilities such as Cyber Monitoring & Response/Purple Teaming/Threat Hunting/Digital Forensics/Incident Response
-Act as an escalation point for the analysis of security alerts or technical response to security events and incidents
-Review and guide the SOC personnel for well-written, complete, and thorough analysis
-Mentor and guide more junior SOC personnel sharing your knowledge and expertise.
-Develop and improve monitoring & response playbooks.
-Conduct proactive threat hunting and DFIR activities.
-Develop deep expertise in our monitoring systems and technology to act as an SME in working with our detection engineering and automation teams to enhance our abilities to prevent, detect & respond.
-Identify and test new adversary TTPs and our ability to detect and respond to them.
-Identify opportunities for efficiency, work hand in hand with Security Automation team to automate and improve our response processes.
-Assist in the implementation and ongoing support of security systems, acting as an SME for SOC related projects.
-Execute tasks or support projects to enhance team's capabilities.
-Assist in defining SOC requirements for information technology projects.
-Act as a role model and set the standard for technical analysis within the SOC.
-Providing strong mentorship and guidance to more junior SOC team members by acting and leading by example. Bring a positive outlook and seek to motivate and inspire your fellow team members.
-Demonstrate comprehensive understanding of cyber security best practices, risk vectors, mitigation techniques and protection software. Display knowledge of network security concepts and tools such as firewalls, proxy servers, email security and suspicious traffic flows. Exhibit analytical ability to lead incident response and mitigation efforts as well as identify key areas for improvement from post-incident analysis. Show ability to convey cyber security polices and concepts to employees and lead training efforts to ensure all employees follow recommended best practices relating to cyber security.
-Strong understanding of MITRE ATT&CK Cyber Kill Chain and similar frameworks.
-Strong knowledge of security controls related to the detection, analysis, and response (SIEM, EDR, NDR, XDR, UEBA).
-Strong knowledge of Windows and Linux systems, Active Directory, Cloud technologies.
**Qualifications and Skills**
-5+ years of experience in cyber security experience required, ideally in a SOC, DFIR, or CSIRT role.
-Strong verbal and written communication skills with experience in documenting their work to a high level.
-Professional Certifications an advantage but not essential if have requisite role knowledge, GCIH, GNFA, GFCA, Certified Ethical Hacker (CEH), OSCP, CISSP or similar certifications a plus.
-Must be self-directed with the ability to work independently.
-Ability to multi-task and remain productive in a service-driven and results oriented environment.
-Demonstrated strong organizational, analytical, and problem-solving skills.
**Additional Requirements**
SMBC's employees participate in a hybrid workforce model that provides employees with an opportunity to work from home, as well as, from an SMBC office. SMBC requires that employees live within a reasonable commuting distance of their office location. Prospective candidates will learn more about their specific hybrid work schedule during their interview process.
SMBC provides reasonable accommodations during candidacy for applicants with disabilities consistent with applicable federal, state, and local law. If you need a reasonable accommodation during the application process, please let us know at

My Dublin City Centre based client is recruiting for an Security Specialist / Information Security Officer (ISO) this is a daily rate contract working on a hybrid model. The Security Specialist / Information Security Officer (ISO) to manage security projects and engage with senior stakeholders. This is a key role ensuring the effective implementation of security frameworks, compliance, and risk management strategies within a highly regulated environment. Key Responsibilities Lead the design, implementation, and management of security projects across the organisation. Act as the primary contact for senior stakeholders, providing security expertise and influencing decision-making at an executive level. Ensure compliance with financial services regulatory requirements (e.g., EBA, CBI, ISO 27001, GDPR). Develop, maintain, and monitor security policies, standards, and procedures. Conduct risk assessments and manage remediation plans to strengthen overall security posture. Oversee vendor and third-party risk management in line with regulatory expectations. Provide guidance, training, and awareness to teams on security best practices. Support incident response planning and execution, ensuring business resilience and continuity. Experience & Skills Required Proven experience as a Security Specialist / ISO within financial services / Insurance or a regulated industry. Strong track record in managing security projects from initiation through to delivery. Ability to work closely with and influence senior stakeholders, regulators, and boards. In-depth knowledge of ISO 27001, NIST, GDPR, and financial services security standards. Familiarity with risk management, governance, and compliance frameworks. Excellent communication, leadership, and stakeholder management skills. Qualifications (Preferred) Degree in Information Security, Computer Science, or related field. Professional certifications such as CISSP, CISM, CISA, or ISO 27001 Lead Auditor/Implementer. HOW TO APPLY: To apply for this role, please submit your updated CV. If your skills and experience match job requirements, you will be contacted to discuss your application in detail. SIMILAR ROLES OPEN: As a specialized recruitment agency, we also have several other permanent and contract roles available. Visit our website for more information or explore additional opportunities. Skills: Information Security Senior Stakeholder Management Project Management Financial Services Insurance

My Dublin City Centre based client is recruiting for an Security Specialist / Information Security Officer (ISO) this is a daily rate contract working on a hybrid model.

The Security Specialist / Information Security Officer (ISO) to manage security projects and engage with senior stakeholders.

This is a key role ensuring the effective implementation of security frameworks, compliance, and risk management strategies within a highly regulated environment.

Key Responsibilities Lead the design, implementation, and management of security projects across the organisation.

Act as the primary contact for senior stakeholders, providing security expertise and influencing decision-making at an executive level.

Ensure compliance with financial services regulatory requirements (e.g., EBA, CBI, ISO 27001, GDPR).

Develop, maintain, and monitor security policies, standards, and procedures.

Conduct risk assessments and manage remediation plans to strengthen overall security posture.

Oversee vendor and third-party risk management in line with regulatory expectations.

Provide guidance, training, and awareness to teams on security best practices.

Support incident response planning and execution, ensuring business resilience and continuity.

Experience & Skills Required Proven experience as a Security Specialist / ISO within financial services / Insurance or a regulated industry.

Strong track record in managing security projects from initiation through to delivery.

Ability to work closely with and influence senior stakeholders, regulators, and boards.

In-depth knowledge of ISO 27001, NIST, GDPR, and financial services security standards.

Familiarity with risk management, governance, and compliance frameworks.

Excellent communication, leadership, and stakeholder management skills.

Qualifications (Preferred) Degree in Information Security, Computer Science, or related field.

Professional certifications such as CISSP, CISM, CISA, or ISO 27001 Lead Auditor/Implementer.

HOW TO APPLY: To apply for this role, please submit your updated CV.

If your skills and experience match job requirements, you will be contacted to discuss your application in detail.

SIMILAR ROLES OPEN: As a specialized recruitment agency, we also have several other permanent and contract roles available.

Visit our website for more information or explore additional opportunities.

Skills: Information Security Senior Stakeholder Management Project Management Financial Services Insurance

In alignment with our Microsoft values, we are committed to cultivating an inclusive work environment for all employees to positively impact our culture every day and we need you as a **Cyber Security Engineer** .
Microsoft's Cloud Operations & Innovation (CO+I) is the engine that powers our cloud services. As a Network Security Service Engineer you will perform a key role in delivering the core infrastructure and foundational technologies for Microsoft's online services including Bing, Office 365, Xbox, OneDrive, and the Microsoft Azure platform. You will drive our technology strategy, lead by example, and support team members on their learning journey. You will implement and operate modern cloud and on premises cybersecurity controls to defend Microsoft datacenter critical infrastructure from threat actors. Leveraging multiple solutions and partnering with internal and external teams, you will be at the forefront of advancing industrial network cybersecurity capabilities.
Through on the job learning and bi-directional mentorship, this opportunity will allow you to gain cyber defense, automation, and networking skills and experiences that are rare in both networking and security organizations, and in high demand across multiple industries. This is a flexible work opportunity for you to work from home partially or fully if desired.
As a group, CO+I is focused on personal and professional development for all employees and offers trainings and growth opportunities including Career Rotation Programs, Diversity & Inclusion trainings and events, and professional certifications.
Our infrastructure is comprised of a large global portfolio of more than 100 datacenters and 1 million servers. Our foundation is built upon and managed by a team of subject matter experts working to support services for more than 1 billion customers and 20 million businesses in over 90 countries worldwide.
With environmental sustainability and optimization at the forefront of our datacenter design and operations, we continue to grow and evolve as we meet the ever-changing business demands that hold Microsoft as a world-class cloud provider.
Do you want to empower billions across the world? Come and join us in CO+I and be at the forefront of the action!
**Responsibilities**
+ Proactively identify and investigate potential issues and patterns in security controls and drive mitigation strategies, while also implementing automation to improve efficiency and effectiveness across the network.
+ Install, upgrade, and maintain security hardware, operating system and software.
+ Identify gaps in security policy and administration, recommend solutions, and implement new and revised security standards, while working with partner teams to drive consistency and awareness.
+ Maintain standards and drive improvements for our customer and partner experience, responding appropriately to emerging issues and advocating for our customer experience through development and analyzation of key metrics, performance indicators, and other data sources (e.g. bugs, unhealthy data pipeline). Respond to escalations and recommend improvements as appropriate to address gaps.
+ Participate in on-call rotation to support security services.
+ With minimal guidance, analyze attempted or successful efforts to compromise systems security and, alongside partner teams, create recommendations to limit exposure, implement response plans, and take action.
+ Analyze potential or actual intrusions identified from monitoring activities and create detections based on available data (e.g., Indicators of Compromise (IOC) and Tools Tactics Procedures (TTP)).
**Other**
+ Embody our culture and values .
**Qualifications**
**Required Qualifications:**
+ 4+ years of experience in software development lifecycle, large-scale computing, modeling, cyber security, anomaly detection, Security Operations Center (SOC) detection, threat analytics, security incident and event management (SIEM), information technology (IT), and operations incident response
+ OR Bachelor's Degree in Statistics, Mathematics, Computer Science or related field.
+ Strong background in Firewalls or Intrusion detection or prevention systems
**Background Check Requirements:**
Ability to meet Microsoft, customer and/or government security screening requirements are required for this role. These requirements include, but are not limited to the following specialized security screenings:
+ Microsoft Cloud Background Check: This position will be required to pass the Microsoft Cloud background check upon hire/

In alignment with our Microsoft values, we are committed to cultivating an inclusive work environment for all employees to positively impact our culture every day and we need you as a **Cyber Security Engineer** .
Microsoft's Cloud Operations & Innovation (CO+I) is the engine that powers our cloud services. As a Network Security Service Engineer you will perform a key role in delivering the core infrastructure and foundational technologies for Microsoft's online services including Bing, Office 365, Xbox, OneDrive, and the Microsoft Azure platform. You will drive our technology strategy, lead by example, and support team members on their learning journey. You will implement and operate modern cloud and on premises cybersecurity controls to defend Microsoft datacenter critical infrastructure from threat actors. Leveraging multiple solutions and partnering with internal and external teams, you will be at the forefront of advancing industrial network cybersecurity capabilities.
Through on the job learning and bi-directional mentorship, this opportunity will allow you to gain cyber defense, automation, and networking skills and experiences that are rare in both networking and security organizations, and in high demand across multiple industries. This is a flexible work opportunity for you to work from home partially or fully if desired.
As a group, CO+I is focused on personal and professional development for all employees and offers trainings and growth opportunities including Career Rotation Programs, Diversity & Inclusion trainings and events, and professional certifications.
Our infrastructure is comprised of a large global portfolio of more than 100 datacenters and 1 million servers. Our foundation is built upon and managed by a team of subject matter experts working to support services for more than 1 billion customers and 20 million businesses in over 90 countries worldwide.
With environmental sustainability and optimization at the forefront of our datacenter design and operations, we continue to grow and evolve as we meet the ever-changing business demands that hold Microsoft as a world-class cloud provider.
Do you want to empower billions across the world? Come and join us in CO+I and be at the forefront of the action!
**Responsibilities**
+ Proactively identify and investigate potential issues and patterns in security controls and drive mitigation strategies, while also implementing automation to improve efficiency and effectiveness across the network.
+ Install, upgrade, and maintain security hardware, operating system and software.
+ Identify gaps in security policy and administration, recommend solutions, and implement new and revised security standards, while working with partner teams to drive consistency and awareness.
+ Maintain standards and drive improvements for our customer and partner experience, responding appropriately to emerging issues and advocating for our customer experience through development and analyzation of key metrics, performance indicators, and other data sources (e.g. bugs, unhealthy data pipeline). Respond to escalations and recommend improvements as appropriate to address gaps.
+ Participate in on-call rotation to support security services.
+ With minimal guidance, analyze attempted or successful efforts to compromise systems security and, alongside partner teams, create recommendations to limit exposure, implement response plans, and take action.
+ Analyze potential or actual intrusions identified from monitoring activities and create detections based on available data (e.g., Indicators of Compromise (IOC) and Tools Tactics Procedures (TTP)).
**Other**
+ Embody our culture and values .
**Qualifications**
**Required Qualifications:**
+ 4+ years of experience in software development lifecycle, large-scale computing, modeling, cyber security, anomaly detection, Security Operations Center (SOC) detection, threat analytics, security incident and event management (SIEM), information technology (IT), and operations incident response
+ OR Bachelor's Degree in Statistics, Mathematics, Computer Science or related field.
+ Strong background in Firewalls or Intrusion detection or prevention systems
**Background Check Requirements:**
Ability to meet Microsoft, customer and/or government security screening requirements are required for this role. These requirements include, but are not limited to the following specialized security screenings:
+ Microsoft Cloud Background Check: This position will be required to pass the Microsoft Cloud background check upon hire/

SMBC Group is a top-tier global financial group. Headquartered in Tokyo and with a 400-year history, SMBC Group offers a diverse range of financial services, including banking, leasing, securities, credit cards, and consumer finance. The Group has more than 130 offices and 80,000 employees worldwide in nearly 40 countries. Sumitomo Mitsui Financial Group, Inc. (SMFG) is the holding company of SMBC Group, which is one of the three largest banking groups in Japan. SMFG's shares trade on the Tokyo, Nagoya, and New York (NYSE: SMFG) stock exchanges.
In the Americas, SMBC Group has a presence in the US, Canada, Ireland, Mexico, Brazil, Chile, Colombia, and Peru. Backed by the capital strength of SMBC Group and the value of its relationships in Asia, the Group offers a range of commercial and investment banking services to its corporate, institutional, and municipal clients. It connects a diverse client base to local markets and the organization's extensive global network. The Group's operating companies in the Americas include Sumitomo Mitsui Banking Corp. (SMBC), SMBC Nikko Securities America, Inc., SMBC Capital Markets, Inc., SMBC MANUBANK, JRI America, Inc., SMBC Leasing and Finance, Inc., Banco Sumitomo Mitsui Brasileiro S.A., and Sumitomo Mitsui Finance and Leasing Co., Ltd.
+ This is a hybrid role, requiring the successful candidate to attend our Tralee office.
**Role Description**
SMBC is seeking a Cyber Security Analyst who has a strong passion for Cyber Resilience and is interested in building a career at a fast growing and reputable

SMBC Group is a top-tier global financial group. Headquartered in Tokyo and with a 400-year history, SMBC Group offers a diverse range of financial services, including banking, leasing, securities, credit cards, and consumer finance. The Group has more than 130 offices and 80,000 employees worldwide in nearly 40 countries. Sumitomo Mitsui Financial Group, Inc. (SMFG) is the holding company of SMBC Group, which is one of the three largest banking groups in Japan. SMFG's shares trade on the Tokyo, Nagoya, and New York (NYSE: SMFG) stock exchanges.
In the Americas, SMBC Group has a presence in the US, Canada, Ireland, Mexico, Brazil, Chile, Colombia, and Peru. Backed by the capital strength of SMBC Group and the value of its relationships in Asia, the Group offers a range of commercial and investment banking services to its corporate, institutional, and municipal clients. It connects a diverse client base to local markets and the organization's extensive global network. The Group's operating companies in the Americas include Sumitomo Mitsui Banking Corp. (SMBC), SMBC Nikko Securities America, Inc., SMBC Capital Markets, Inc., SMBC MANUBANK, JRI America, Inc., SMBC Leasing and Finance, Inc., Banco Sumitomo Mitsui Brasileiro S.A., and Sumitomo Mitsui Finance and Leasing Co., Ltd.
+ This is a hybrid role, requiring the successful candidate to attend our Tralee office.
**Role Description**
SMBC is seeking a Cyber Security Analyst who has a strong passion for Information Security Operations and is interested in building a career at a fast growing and reputable