Network Engineer

We are supporting a global technology organisation operating one of the largest and most complex networks in the world. They are seeking a Senior Network Engineer to join a high-performing infrastructure team responsible for designing, operating and troubleshooting large-scale, mission-critical IP networks.

• PAYE Contract / 6 months
• On-site / Dublin
• Stamp 1G / Stamp 4 / EU Passport

Key Responsibilities

• Design, implement and support large-scale IP networks in a high-availability environment
• Own and troubleshoot complex Layer 2 and Layer 3 network issues end-to-end
• Work extensively with BGP and OSPF in production environments
• Operate and support enterprise and carrier-class routing platforms
• Perform deep-dive network analysis, fault isolation and performance optimisation
• Collaborate with cross-functional engineering teams to deliver resilient network solutions

Required Skills & Experience

• Strong IP networking fundamentals with hands-on commercial experience
• Extensive experience with BGP and OSPF in large, complex networks
• Proven experience working with Cisco routing platforms, including:
• 37xx, 49xx, 65xx, 73xx and 76xx series
• Associated supervisory and line cards
• Excellent network troubleshooting and analytical skills
• Experience supporting high-traffic, highly available environments

Technical Experience (Desirable)

Experience across a broad range of networking protocols and technologies, including:

• DWDM, T1/DS1, DS3, SONET (OC3 / OC48)
• Ethernet & switching: 802.2/3, VLANs, STP (802.1d)
• IPv4 & IPv6
• TCP internals and flow control
• High availability & multicast: HSRP, GLBP, PIMv2, IGMP
• MPLS & services: LDP
• Security & access: TACACS, IPSEC, VPNs
• Monitoring & services: NetFlow, DNS, HTTP

Sounds interesting? Feel free to reach out!

A leading global financial services organisation is seeking an experienced Database Engineer to join a high‑impact technology team supporting large‑scale investment and fund operations.

This role suits someone who is hands‑on, detail‑driven, and comfortable working with complex Oracle‑centric systems in a regulated, enterprise environment.

• Contract / 11 months
• Hybrid / Dublin
• Stamp 4 / EU Passport required

The Role

• Design, develop and optimise Oracle SQL & PL/SQL solutions
• Perform SQL performance tuning and complex data analysis
• Contribute to both real‑time and batch data processing systems
• Assess and improve existing large‑scale PL/SQL applications
• Collaborate closely with application and architecture teams
• Work within distributed, international delivery teams

Required Experience

• 5+ years of hands‑on Oracle SQL & PL/SQL development
• Strong experience with data modelling and relational database design
• Proven background in SQL performance tuning
• Experience across RDBMS, data warehouse, ODS environments
• ETL and data movement experience (Informatica preferred)
• Exposure to job scheduling tools (e.g. Control‑M)
• Comfortable working in UNIX/Linux environments
• Familiarity with source control systems
• Practical use of GenAI tools (e.g. GitHub Copilot or similar)

Nice to Have

• Oracle certification
• Experience in financial systems (funds or investment operations a plus)
• Exposure to CI/CD or continuous integration
• Experience working in Agile delivery teams

Key Attributes

• Strong analytical and problem‑solving skills
• Confident communicator with a client‑focused mindset
• Proactive, ownership‑driven approach
• Comfortable operating in complex enterprise environments

If you’re interested or would like more details, feel free to reach out.

We seeking an experienced Senior Network Engineer to join its network engineering function on a 12‑month contract basis. The successful candidate will play a key role in the design, build, and operation of large‑scale optical and IP networks.

• PAYE Contract / 12 months
• On-site / Dublin
• Stamp 1G / Stamp 4 / EU Passport

Key Responsibilities

• Design, build, and scale global DWDM optical networks
• Develop and maintain processes for optical network operations
• Drive initiatives to improve network quality, resilience, and performance
• Evaluate new technologies and support commercial tender processes
• Ensure compliance with optical networking standards
• Review, plan, and implement changes across optical systems
• Provide advanced network analysis and troubleshooting support

Required Experience & Skills

• Minimum 4 years’ experience in Optical Network Operations or Support
• Proven experience delivering and operating large DWDM network rollouts
• Strong knowledge of optical planning and modelling tools
• Hands‑on experience with DWDM platforms including Ciena, Infinera, and Cisco
• Experience with Cisco and Juniper routing platforms
• Strong understanding of IP networking fundamentals and protocols
• Excellent analytical and troubleshooting skills

Technical Expertise

• DWDM, T1/DS1, DS3, SONET (OC3, OC48)
• IPv4 and IPv6, TCP
• BGP, OSPF, HSRP and GLBP
• VLANs and STP, PIMv2, IGMP, LDP
• IPSEC, VPNs, TACACS, NetFlow, DNS, HTTP

This is an excellent opportunity to work on complex, large‑scale network infrastructure within a highly technical environment.

• Design, develop, and maintain high‑quality, scalable mainframe applications
• Contribute to architecture and application design decisions
• Develop and support Batch and CICS applications
• Participate fully in agile scrum ceremonies
• Collaborate with cross‑functional teams including product, architecture, and engineering
• Uphold high standards in code quality, security, automation, and maintainability
• Support continuous improvement and engineering best practices

• 8+ years of professional software design and development experience
• Degree (or equivalent) in Computer Science, Engineering, IT, or related discipline
• Strong hands‑on experience with mainframe technologies, including COBOL, DB2, CICS, COBOL Stored Procedures, and Native Stored Procedures
• Proven experience developing and deploying Batch and CICS applications
• Solid understanding of mainframe tooling such as ENDEVOR, FILE‑AID, ABEND‑AID, and CONTROL‑M
• Experience working in an agile / scrum environment
• Demonstrated track record of successful product delivery

Role Overview

Key Responsibilities

• Design, develop, and maintain a data analysis and visualization reporting platform for equity research teams
• Write and maintain Linux-based scripts to parse, store, manipulate, and visualize financial data
• Take ownership of a complex legacy codebase, ensuring accuracy, stability, and continuity of outputs
• Work closely with business stakeholders to understand reporting and visualization requirements
• Incrementally modernize the platform, improving CI/CD, deployment workflows, monitoring, and code quality
• Learn and assume ownership of existing reporting solutions without disrupting trusted outputs
• Work independently under general direction while collaborating within a delivery team

Required Skills & Experience

• 7+ years of experience in software development or data engineering
• Strong Linux proficiency, including networking, processes, filesystem, cron, and systemctl
• Strong shell scripting experience (bash, ksh, zsh)
• Professional experience with Perl, Python, or similar scripting languages in production
• Solid understanding of data analysis, statistical concepts, and data tooling
• Strong SQL skills, including relational schema design and performance optimization
• Experience with data visualization and charting tools
• Familiarity with Git, CI/CD pipelines, and automated deployment workflows

Preferred Skills

• Experience modernizing legacy scripting or reporting platforms
• Knowledge of data pipelines, APIs, ETL schedulers, or workflow orchestration tools
• Exposure to cloud environments (AWS, GCP, Azure)
• Python for automation, machine learning, or API development
• Experience building shared libraries or reusable engineering tooling

• Galway
• Hybrid working model
• Permanent - €90,000 + 20% bonus
• EU Passport / Stamp 4 required

• Design and develop scalable, cloud-native applications.
• Provide technical leadership and mentor engineers.
• Build modern Single Page Applications (SPAs) using Angular.
• Develop RESTful APIs and microservices using Java and Spring Boot.
• Drive best practices in TDD, CI/CD, code reviews, and engineering excellence.
• Contribute to architecture, DevOps strategy, and automated deployment pipelines.
• Collaborate closely with product, architecture, and business stakeholders.

• 8+ years of software design and development experience.
• Strong expertise in Java, Spring (Core & Boot), and REST APIs.
• Advanced Angular experience (NGRX, RXJS, Bootstrap).
• Experience with Maven, Jenkins, and CI/CD pipelines.
• Strong understanding of API design and microservices architecture.
• Previous exposure to AWS is a strong advantage.
• Messaging/streaming platform experience a plus.
• Investment Management knowledge advantageous but not required.