Find Sr. software engineer (distributed systems) Jobs in Dublin, D

Principal Engineer - Commerce Hub
Fiserv —Dublin, County Dublin
- Full-time
- Java
- AWS
- AI
Senior Site Reliability Engineer
Replit —Dublin, County Dublin
- Full-time
- Remote
- Communication skills
- Python
- Life insurance
Senior Manager, Platform Engineering
Prove —Dublin, County Dublin
- €120,000–€140,000 a year
- Remote
- Computer Science
- System design
- Java
- Employee assistance program
Senior Production Engineer
Whatnot —Dublin, County Dublin
- Full-time
- Remote
- Computer Science
- AWS
- Bachelor's degree
- Work from home
1d
Software Development Manager, Aurora Control Plane, Aurora Control Plane
Amazon Development Centre Ireland Limited —Dublin, County Dublin
- Full-time
- Management
- Engineering
- AWS
Software Development Manager, Network Monitoring and Remediation
Amazon Development Centre Ireland Limited —Dublin, County Dublin
- Full-time
- Engineering
- AWS
- Team management
Senior Cybersecurity Engineer, Enterprise Identity
Autodesk —Dublin, County Dublin
- €57,400–€84,150 a year
- Full-time
- Azure
- Computer Science
- DevOps
Principal AI/ML Scientist & Engineer
Pipedrive —Dublin, County Dublin
- Full-time
- Hybrid work
- English
- AWS
- Mentoring
- Relocation assistance
- Annual leave
Quick apply
Software Development Manager, Network Capacity Services
Amazon Development Centre Ireland Limited —Dublin, County Dublin
- Full-time
- Engineering
- Java
- AWS
Senior Support Engineering Manager
Cubic³ —Dublin, County Dublin
- Full-time
- Hybrid work
- Leadership
- Communication skills
9d
Senior .NET Engineer
AccountsIQ —Dublin, County Dublin
- Azure
- Computer Science
- DevOps
- Annual leave
Quick apply
Software Development Manager , AWS DMS
Amazon Development Centre Ireland Limited —Dublin, County Dublin
- Full-time
- Oracle
- Engineering
- AWS
2d
AI Infrastructure Engineer
Intercom —Dublin, County Dublin
- Hybrid work
- Computer Science
- Java
- Master's degree
- Work from home
Senior Manager of Data Engineering
JPMorganChase —DUBLIN 2, County Dublin
- Full-time
- SQL
- AWS
- AI
Senior Staff Engineer
StoneX Group —Dublin, County Dublin
- Azure
- Computer Science
- English
Senior Engineer, Infrastructure Platform
Intercom —Dublin, County Dublin
- Hybrid work
- AWS
- Work from home
Senior AI/ML Computational Scientist
Accenture —Dublin, County Dublin
- Full-time
- Computer science
- Doctoral degree
- Computer Science
8d
Sr. Full-Stack Developer (Python & Java)
Broadridge —Dublin, County Dublin
- Full-time
- English
- Java
- AWS
10d
Senior Cloud Networking Manager
eBay Inc. —Dublin, County Dublin
- Full-time
- Computer Science
- Master's degree
- Bachelor's degree
Director Cloud Platform
Guidewire Software —Dublin, County Dublin
- Weekend availability
- Doctoral degree
- Java
- Master's degree

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Principal Engineer - Commerce Hub

Fiserv -
Dublin, County Dublin

Apply Now

Job details

Full-time

Qualifications

Kubernetes
Java
AWS
PostgreSQL
Distributed systems
Kafka
AI
GitLab
Spring framework

Full job description

Location: Dublin, Ireland

Job ID: R-10373014

Category: Technology

Onsite

Posting Start Date: Posting Start Date: 30-July-2026

Posting End Date: Posting End Date: 31-August-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 - Commerce Hub

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.

#LI-1IB

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

sr. software engineer (distributed systems) jobs in dublin, d

Principal Engineer - Commerce Hub

Senior Site Reliability Engineer

Senior Manager, Platform Engineering

Senior Production Engineer

Software Development Manager, Aurora Control Plane, Aurora Control Plane

Software Development Manager, Network Monitoring and Remediation

Senior Cybersecurity Engineer, Enterprise Identity

Principal AI/ML Scientist & Engineer

Software Development Manager, Network Capacity Services

Senior Support Engineering Manager

Senior .NET Engineer

Software Development Manager , AWS DMS

AI Infrastructure Engineer

Senior Manager of Data Engineering

Senior Staff Engineer

Senior Engineer, Infrastructure Platform

Senior AI/ML Computational Scientist

Sr. Full-Stack Developer (Python & Java)

Senior Cloud Networking Manager

Director Cloud Platform

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