Senior Infrastructure Engineer – Design Engineering Team
Location: Leopardstown, Dublin (Hybrid – 3 days onsite)
Contract: 12-month renewable
Start Date: ASAP
About the Role
We're looking for a Senior Infrastructure Engineerto join a dynamic Design Engineering team focused on crafting the infrastructure that powers global-scale platforms. This role is ideal for someone who thrives on designing and building robust, secure, and scalable infrastructure solutions from the ground up.
You'll be deeply involved in the full lifecycle of infrastructure design—from gathering requirements and creating architecture documents to guiding implementation and ensuring operational excellence. Your work will directly influence the performance, reliability, and scalability of critical systems.
Key Responsibilities
* Design and build infrastructure solutions that meet evolving business and technical requirements.
* Lead the creation of Technical Architecture Documents (TADs), infrastructure models, and logical flows.
* Collaborate with application teams, architects, and stakeholders to define and validate system requirements.
* Ensure infrastructure designs align with enterprise standards for security, scalability, and availability.
* Research and evaluate emerging technologies for potential integration.
* Own and deliver regional infrastructure projects, managing planning, resources, and execution.
* Support and manage infrastructure components using best practices and modern tooling.
* Conduct performance tuning, capacity planning, and configuration management.
* Monitor production systems to ensure long-term stability and compatibility.
About You
• Advanced knowledge of Web application architecture and project delivery.
• Advanced knowledge of how the Java Virtual Machine works, how Garbage collection works.
• Advanced knowledge of load balancers and web application firewalls
• Advanced knowledge of network and operating system principles
• Vast knowledge of middleware technologies (Web Servers, Application Servers, Queue Managers, Messaging, Caching)
• Working knowledge of Database technologies.
• Working knowledge of cloud technologies
• Solid knowledge of techniques or methodologies to achieve non-functional requirements like reliability, availability, resilience, performance, security.
• Working knowledge of Role Based Access Control, Authentication and Authorization mechanisms.
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Why Join Us – Our EVP
Design and Build the Infrastructure of the Future.
As part of the Design Engineering team, you'll be at the forefront of shaping systems that support global digital ecosystems. Your designs and implementations will influence performance, scalability, and security across continents.
We offer:
* Global Impact: Your work will support billions of transactions, ensuring performance and reliability at scale.
* Innovation Culture: Be part of a team that embraces emerging technologies and continuous learning.
* Collaborative Environment: Work alongside passionate technologists solving complex challenges together.
* Career Growth: Access mentorship, internal mobility, and leadership opportunities.
* Purpose-Driven Work: Contribute to building inclusive, secure, and scalable digital infrastructure.
Location
Dublin, Ireland
Trading as TEKsystems. Allegis Group Limited. Level 1, The Chase, Carmanhall Road, Sandyford, Dublin 18, Ireland. No TEKsystems is a company within the Allegis Group network of companies (collectively referred to as "Allegis Group"). Aerotek, Aston Carter, EASi, Talentis Solutions, TEKsystems, Stamford Consultants and The Stamford Group are Allegis Group brands. If you apply, your personal data will be processed as described in the Allegis Group Online Privacy Notice available at
To access our Online Privacy Notice, which explains what information we may collect, use, share, and store about you, and describes your rights and choices about this, please go to
We are part of a global network of companies and as a result, the personal data you provide will be shared within Allegis Group and transferred and processed outside the UK, Switzerland and European Economic Area subject to the protections described in the Allegis Group Online Privacy Notice. We store personal data in the UK, EEA, Switzerland and the USA. If you would like to exercise your privacy rights, please visit the "Contacting Us" section of our Online Privacy Notice at for details on how to contact us. To protect your privacy and security, we may take steps to verify your identity, such as a password and user ID if there is an account associated with your request, or identifying information such as your address or date of birth, before proceeding with your request. If you are resident in the UK, EEA or Switzerland, we will process any access request you make in accordance with our commitments under the UK Data Protection Act, EU-U.S. Privacy Shield or the Swiss-U.S. Privacy Shield.