Find Principal software Jobs in Dublin, D

Principal Engineer - Commerce Hub
Fiserv —Dublin, County Dublin
- Full-time
- Java
- AWS
- AI
Engineering Manager - Commerce Hub
Fiserv —Dublin, County Dublin
- Full-time
- Java
- AWS
- Agile
Senior Implementation Consultant
Kefron —Dublin, County Dublin
- Full-time
- Hybrid work
- Computer Science
- ERP systems
- SQL
Quick apply
Software Development Engineer II, Transactional Data Storage
Amazon Development Centre Ireland Limited —Dublin, County Dublin
- Full-time
- Computer Science
- AWS
- Bachelor's degree
Marketing Executive
Kreoh Limited —Dublin, County Dublin
- From €36,605 a year
- Full-time
- Marketing
- Social media management
- English
- Store discount
Quick apply
8d
Senior Business Analyst (Contract)
Codec —Dublin, County Dublin
- Hybrid work
- Azure
- Oracle
- Bachelor's degree
Quick apply
Principal Cybersecurity Data Engineer
Workday —Dublin, County Dublin
- €104,000–€156,000 a year
- Full-time
- Master's degree
- SQL
- AWS
Software Development Manager , AWS DMS
Amazon Development Centre Ireland Limited —Dublin, County Dublin
- Full-time
- Oracle
- Engineering
- AWS
1d
Data Analytics and AI Team Lead
Spanish Point Technologies —Clontarf, County Dublin
- Spanish
- Azure
- Computer Science
Senior Software Developer
Creditsafe —Dublin, County Dublin
- Full-time
- Hybrid work
- AWS
- Communication skills
- Python
- Annual leave
Sr. Software Development Engineer, AWS DMS
Amazon Development Centre Ireland Limited —Dublin, County Dublin
- Full-time
- Oracle
- Computer Science
- Java
Senior Business Analyst
Codec —Dublin, County Dublin
- Full-time
- Hybrid work
- Azure
- Oracle
- Bachelor's degree
Quick apply
Principal AI Flow Development Engineer
Synopsys —Dublin, County Dublin
- Computer Science
- Engineering
- Bachelor's degree
Staff/Principal Product Designer
Intercom —Dublin, County Dublin
- Hybrid work
- System design
- Work from home
Principal Decision Scientist - Marketing
Pipedrive —Dublin, County Dublin
- Full-time
- Hybrid work
- English
- SQL
- Mentoring
- Relocation assistance
- Annual leave
Quick apply
Principal Software Engineer, Amazon DynamoDB
Amazon Development Centre Ireland Limited —Dublin, County Dublin
- Full-time
- AWS
- Software development
- SDLC
Lead Technical Product Manager
Optum —Dublin, County Dublin
- Full-time
- Computer Science
- Engineering
- Bachelor's degree
Staff Site Reliability Engineer
Replit —Dublin, County Dublin
- Full-time
- Remote
- Mentoring
- Communication skills
- Python
- Life insurance
Principal / Lead Geotechnical Engineer
PM Group —Dublin, County Dublin
- Master's degree
- Analysis skills
- Bachelor's degree
ASIC Digital Design, Principal Engineer
Synopsys —Dublin, County Dublin
- Computer Science
- Engineering
- Bachelor'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

principal software jobs in dublin, d

Principal Engineer - Commerce Hub

Engineering Manager - Commerce Hub

Senior Implementation Consultant

Software Development Engineer II, Transactional Data Storage

Marketing Executive

Senior Business Analyst (Contract)

Principal Cybersecurity Data Engineer

Software Development Manager , AWS DMS

Data Analytics and AI Team Lead

Senior Software Developer

Sr. Software Development Engineer, AWS DMS

Senior Business Analyst

Principal AI Flow Development Engineer

Staff/Principal Product Designer

Principal Decision Scientist - Marketing

Principal Software Engineer, Amazon DynamoDB

Lead Technical Product Manager

Staff Site Reliability Engineer

Principal / Lead Geotechnical Engineer

ASIC Digital Design, Principal Engineer

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