Find Systems engineer Jobs in Killaloe, Ce

Principal Engineer
Fiserv —Nenagh, County Tipperary
- Full-time
- Java
- AWS
- AI
14h
Junior Controls Engineer
DMI (Digital Manufacturing Ireland) —Limerick, County Limerick
- Full-time
- Hybrid work
- Master's degree
- C++
- Bachelor's degree
Quick apply
13d
Engineering Manager
Fiserv —Nenagh, County Tipperary
- Full-time
- Java
- AWS
- Agile
14h
Implementation Engineer
Poppulo —Limerick, County Limerick
- €35,000–€50,000 a year
- Windows
- Communication skills
- Life insurance
Quick apply
Mechanical and Robotics Intern
Analog Devices —Limerick, County Limerick
- Full-time
- Engineering
- Maintenance
- No degree
Senior Engineer, Product Applications
Analog Devices —Limerick, County Limerick
- Full-time
- Software troubleshooting
- Engineering
- System design
7d
Senior Mechancial Engineer
Glanua —Limerick, County Limerick
- Full-time
- Engineering
- Bachelor's degree
- Leadership
- Annual leave
Quick apply
Product Owner
Glass Lewis —Limerick, County Limerick
- Full-time
- Product management
- Communication skills
Site Reliability Engineering Technical Lead
AMCS Group —Limerick, County Limerick
- Full-time
- Hybrid work
- Azure
- Computer Science
- DevOps
Quick apply
AUTOMATION PROJECT ENGINEER
Réalta Technologies (RT) —Limerick, County Limerick
- Full-time
- Supervising experience
- No degree
- Communication skills
12d
Machine Vision Engineer
DMI (Digital Manufacturing Ireland) —Limerick, County Limerick
- Full-time
- Hybrid work
- Master's degree
- Analysis skills
- C++
Quick apply
13d
Principal AI/ ML Algorithm Development Engineer - Battery Insights
Analog Devices —Limerick, County Limerick
- Full-time
- Doctoral degree
- System design
- No degree
Principal Test Engineer - Product Development
Analog Devices —Limerick, County Limerick
- Full-time
- Microsoft Powerpoint
- Microsoft Word
- Microsoft Excel
Senior Software Engineer - Limerick
Elwood Roberts —Limerick, County Limerick
- €70,000–€85,000 a year
- Full-time
- Software development
Quick apply
Center Engineer (Voice/Video)
Verizon —Limerick, County Limerick
- Remote
- Bachelor's degree
- No degree
- AI
- Annual leave
- Employee assistance program
OT Integration Engineer
DMI (Digital Manufacturing Ireland) —Limerick, County Limerick
- Hybrid work
- Azure
- ERP systems
- Research
Quick apply
12d
Senior Project Manager, Research and Development
Cook Group —Limerick, County Limerick
- Full-time
- Microsoft Powerpoint
- Engineering
- Project management
- Free parking
- Wellness program
Principal Engineer, Reliability Engineering
Analog Devices —Limerick, County Limerick
- Full-time
- Doctoral degree
- Master's degree
- Electrical Engineering
Senior Mechanical Engineer
DPS Group —Limerick, County Limerick
- Engineering
- Bachelor's degree
- Leadership
Automation Engineer (Manufacturing Support)
CAI —Limerick, County Limerick
- Full-time
- Bachelor's degree
- Manufacturing
Quick apply

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Principal Engineer

Fiserv -
Nenagh, County Tipperary

Apply Now

Job details

Full-time
14 hours ago

Qualifications

Kubernetes
Java
AWS
PostgreSQL
Distributed systems
Kafka
AI
GitLab
Spring framework

Full job description

Location: Nenagh, Tipperary, Ireland

Job ID: R-10373021

Category: Technology

Onsite

Posting Start Date: Posting Start Date: 05-July-2026

Posting End Date: Posting End Date: 28-September-2026

Calling all innovators – find your future at Fiserv.

We’re Fiserv, a global leader in Fintech and payments, and we move money and information in a way that moves the world. We connect financial institutions, corporations, merchants, and consumers to one another millions of times a day – quickly, reliably, and securely. Any time you swipe your credit card, pay through a mobile app, or withdraw money from the bank, we’re involved. If you want to make an impact on a global scale, come make a difference at Fiserv.

Job Title

Principal Engineer

About your role:

At Fiserv, we are modernising a high-volume global payment processing platform — moving from a monolithic, batch-driven architecture to an event-driven microservices platform on AWS. This is a ground-up build: Confluent Cloud for event streaming, Aurora PostgreSQL for persistence, Kubernetes for compute, and a modern Java/Kotlin stack throughout.

As a Principal Engineer, you will drive technical delivery strategy across the programme — shaping the architecture patterns teams build on, driving the engineering practices that ensure quality at pace, and making every team around you faster and more effective. You will have influence across both engineering teams and the architecture community, coaching and challenging in equal measure.

You believe AI fundamentally changes how software is built and delivered, and you will drive its adoption as a core part of how teams work — from architecture and design through to code, testing, and delivery.

This is hands-on and outward-facing. You will lead through code, architectural direction, and constructive challenge — ensuring we are building the right things in the right way, and getting to production incrementally rather than in big-bang releases.

What you’ll do:

Own the technical delivery strategy — how we decompose, sequence, and integrate work so that teams deliver end-to-end value early and iterate from there.
Shape cross-cutting architecture patterns — resilience, event-driven integration, idempotency, observability — and ensure they are adopted consistently across services.
Drive architecture decisions toward delivery — challenging over-engineering, unblocking teams when decisions stall, and ensuring designs are practically deliverable.
Establish engineering practices that scale: test-driven development, contract testing, continuous integration, trunk-based development, and vertical slicing.
Coach and raise the bar across engineers and architects — through pairing, design review, code review, and hands-on demonstration of what good looks like.
Apply domain-driven design practically — bounded context integration, aggregates in code, anti-corruption layers — bridging strategy and implementation.
Define testing strategy for an event-driven microservices architecture — unit, integration, contract, and end-to-end, with clear guidance on where each adds value.
Ensure teams are self-sufficient faster — through reusable patterns, service templates, and clear architectural guardrails that accelerate rather than constrain.

Experience you’ll need to have:

Significant experience as a senior/principal engineer or technical lead delivering distributed systems in production.
Deep hands-on experience with modern Java or Kotlin, Spring Boot, and microservices architectures.
A track record of shaping technical strategy and architecture direction across multiple teams — not just delivering within one.
Strong experience with event-driven architectures — Kafka, event sourcing patterns, eventual consistency, and integration patterns.
Practical application of domain-driven design — both strategic (bounded contexts, context mapping) and tactical (aggregates, domain events, repositories).
Experience designing for resilience in distributed systems — circuit breakers, retries, timeouts, bulkheads, graceful degradation.
Proven ability to coach and influence engineers and architects, shifting culture toward pragmatic engineering excellence.
A conviction that AI-assisted engineering is transformative, with experience applying AI tools to accelerate development, testing, or delivery workflows.
Experience with iterative delivery — vertical slicing, walking skeletons, integration-first approaches.

Experience that would be great to have:

Familiarity with payments, financial services, or high-volume transactional domains is a plus but not essential.
Exposure to Confluent Cloud, AWS, Kubernetes, GitLab CI, or observability tooling (Dynatrace, distributed tracing) is beneficial.

Thank you for considering employment with Fiserv. Please:

Apply using your legal name
Complete the step-by-step profile and attach your resume (either is acceptable, both are preferable).

Our commitment to Diversity and Inclusion:

Fiserv is proud to be an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, national origin, gender, gender identity, sexual orientation, age, disability, protected veteran status, or any other category protected by law.

Note to agencies:

Fiserv does not accept resume submissions from agencies outside of existing agreements. Please do not send resumes to Fiserv associates. Fiserv is not responsible for any fees associated with unsolicited resume submissions.

Warning about fake job posts:

Please be aware of fraudulent job postings that are not affiliated with Fiserv. Fraudulent job postings may be used by cyber criminals to target your personally identifiable information and/or to steal money or financial information. Any communications from a Fiserv representative will come from a legitimate Fiserv email address.

Apply Now

Refine Your Search

systems engineer jobs in killaloe, ce

Principal Engineer

Junior Controls Engineer

Engineering Manager

Implementation Engineer

Mechanical and Robotics Intern

Senior Engineer, Product Applications

Senior Mechancial Engineer

Product Owner

Site Reliability Engineering Technical Lead

AUTOMATION PROJECT ENGINEER

Machine Vision Engineer

Principal AI/ ML Algorithm Development Engineer - Battery Insights

Principal Test Engineer - Product Development

Senior Software Engineer - Limerick

Center Engineer (Voice/Video)

OT Integration Engineer

Senior Project Manager, Research and Development

Principal Engineer, Reliability Engineering

Senior Mechanical Engineer

Automation Engineer (Manufacturing Support)

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