5 Network Administrator jobs in Ireland

**Summary:**
Meta's Network Security team is seeking an experienced engineer to help secure our global Data Centers, network Backbone, Optical Infrastructure, and Edge PoPs. We do this by working extensively across the Meta family of products, including Instagram, WhatsApp, and AI where we identify and solve security problems across network infrastructure. You will be responsible for building, implementing, and operationally supporting the organization to develop security controls and services that will protect network infrastructure which helps serve traffic for over 3 billion users worldwide. We are looking for engineers with experience in managing complex issues that require problem-solving to drive security and innovation, who will research and develop new solutions to help protect our infrastructure and our users through a defense in-depth approach. The team thrives in finding security issues and eradicating them and makes life hard for bad actors. With focuses that range from large scale Distributed Denial of Service (DDoS), routing security, security tool development, defense against internal and external attacks there's lots of room to push your skill set in deploying network security controls at scale.
**Required Skills:**
Network Security Engineer Responsibilities:
1. Identifying risks across network infrastructure that would lead to the exposure of sensitive data, unauthorized access, or loss of availability and prioritizing remediation efforts to address gaps
2. Influence security direction of the network, including management software and infrastructure to protect the network integrity of Meta platforms
3. Conceptualize and lead efforts towards building sustainable and scalable network layer security controls and tooling
4. Mentor and champion security practices through cross functional work with engineering teams throughout Meta
5. Keep Meta's safe through active operation and defense of critical network infrastructure
**Minimum Qualifications:**
Minimum Qualifications:
6. Engineering degree, or a related technical discipline, or equivalent work experience
7. Experience coding in higher-level languages (e.g. Python, Rust, Go, C++)
8. Experience in configuration and maintenance of network platforms such as firewalls, routers, switches, load balancers, and proxies
9. Experience learning software, frameworks and APIs
**Preferred Qualifications:**
Preferred Qualifications:
10. Understanding of implementation and scaling of access controls across both host and network layers.
11. Understanding of threat models to better protect against attacks or detect new vectors.
12. Experience leading network efforts to investigate, prevent, and mitigate security incidents.
13. Experience evaluating and testing new vendor platforms and in house network initiatives for security issues.
14. Experience leveraging layered security models to defend critical network infrastructure.
**Industry:** Internet

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 Bank. The Network Security Engineer will be responsible for configuring firewall rules, analyzing security events, and implementing robust security controls across systems and networks. This role involves close collaboration with cross-functional IT teams to ensure effective protection strategies are seamlessly integrated into infrastructure operations.
The ideal candidate will also have opportunities to serve as a subject matter expert, leveraging their technical expertise to resolve complex challenges while navigating established policies, standards, and governance frameworks.
This role will report to the Security Systems Engineer Team Lead
**Role Objectives: Delivery**
+ Works with internal IT Application, Infrastructure, Network and Support teams to ensure that security controls are implemented at all significant and relevant phases of IT processes.
+ Configures firewall rulebase and objects.
+ Configures system and network related parameters.
+ Performs IDS/IPS configuration, updates and tuning.
+ Participates in incident response and investigations; tracks and documents the remediation process.
+ Coordinates and performs security audits and vulnerability assessments to determine internal security procedures and compliance requirements.
+ Reviews security event log data and investigates anomalies.
+ Implements and supports information security solutions including security architectures, change and configuration management and security product integration.
+ Performs testing to evaluate new products for network and system controls.
+ Provides training to Help Desk staff on access request procedures.
+ Adheres to project management methodology/SDLC/PLC processes as it relates to projects and their implementation.
**Qualifications and Skills**
+ 2 years experience supporting IT Security tools and applications.
+ Bachelor's Degree in Computer Science or related field.
+ Process documentation, flow charting and re-engineering experience.
+ Some Project Management Experience a plus.
+ Encryption technologies and PKI infrastructure.
+ Knowledge of Information Security regulatory requirements, codes and industry guidance such as such as NIST 800-53, ISO27001, CIS and Cobit.
+ Ability to utilize resources to contribute valuable input to Information Security projects and Risk Assessments, e.g. ISACA, CIS, FS-ISAC.
+ Networking technologies (TCP/IP/etc.) and protocols (SSL, SSH, LDAP, SMTP, DNS, etc.).
+ Microsoft Active Directory.
+ Familiarity with security monitoring concepts.
+ Administration of more than Palo Alto Firewall, Checkpoint Firewall, Imperva Waf, Tufin.
+ Have strong verbal and written communication skills.
+ Ability to demonstrate a self-motivated and disciplined approach to learning and working.
+ Ability to work in a team environment and demonstrate leadership skills when needed.
+ Possess a highly developed sense of personal accountability and follow-through with an ability to effectively prioritize multiple personal tasks, projects, and goals.
**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

**Summary:**
Meta's Edge & Network Service (ENS) team is actively looking for passionate people to help us tackle the unique set of challenges and opportunities we face, while contributing to our company mission of connecting the world. Our team is the execution arm of the Meta network team and is responsible for the deployment and support of all production networks (Edge, Backbone, Optical, and Datacenter) as well as our content delivery network (CDN) across the globe. This truly global team offers a unique career opportunity to work with all of the latest network technologies and talented engineers solving some of the most complex problems in the industry. This position is full-time and will be based in our Clonee datacenter.Our datacenter footprint is constantly growing to adapt to the vast amount of new services we provide to people. This results in a dramatic scaling challenge that our engineers face on a daily basis. Not only do we need to build and evolve the physical infrastructure that connects myriads of servers together, but also ensure that the network is running smoothly and meets strict performance goals. With the introduction of our own switching software (FBOSS) and our open networking hardware projects (Wedge, Wedge100 and Backpack) we have entered into a new era of unprecedented opportunities to re-think traditional networking and iterate quickly in an area that was previously very closed to innovation.
**Required Skills:**
Network Engineer, Deployment & Support Responsibilities:
1. Deployment, configuration, and management of all network infrastructure on our datacenter campus
2. Work with partner teams and vendors to manage day-to-day operations and reliability of the regional network
3. Schedule and perform maintenance including upgrades, migrations, and decommissioning of production networks
4. Create deployment packages and maintain as-built documentation and asset database for installed network gear
5. Establish and implement global best practices and contribute to the design of new scalable network solutions
6. Support the development, testing and integration of new hardware and software platforms into the network
7. Participate in an on-call rotation to support the regional network infrastructure 24x7
**Minimum Qualifications:**
Minimum Qualifications:
8. 6+ years of related work experience responsible for designing, deploying and operating large-scale networks
9. Experience configuring and troubleshooting routing and switching protocols (BGP, IS-IS, MPLS, RSVP-TE, VRRP)
10. Working knowledge of network protocols (TCP/UDP, DHCP, DNS) and experience with IPv4 and IPv6
11. Experience working in a multi-vendor environment with hands-on experience with networking hardware
12. Working knowledge of physical infrastructure design including structured cabling and fiberoptic cabling
13. Proven ability to manage multiple projects simultaneously and deliver against mission critical deadlines
14. Proven ability to work in fast-paced global team environments and solve problems with limited supervision. - Ability to lift/move 30-40 pounds on a daily basis
15. 10% of travel, up to 30% based on projects
**Preferred Qualifications:**
Preferred Qualifications:
16. Working knowledge of 40/100G Ethernet and CWDM, DWDM and optical transport network technologies
17. Experience with field-based work in Data Centers, Colocation Facilities, Internet Exchanges, or Central Offices
18. Working knowledge of data center power and cooling infrastructure and critical facility operational best practices
19. Familiarity with the Linux based systems. - Experience with scripting and automation (Bash, Python, Perl)
20. Technical leadership capabilities and people management experience
**Industry:** Internet

**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.