Core Banking Developer – Permanent

Core Banking Developer – Permanent, South Dublin

Don’t miss out on this great opportunity. Apply today!!!

Core Banking Developer Roles and Responsibilities:

• Our client is seeking a motivated Developer to design, build, and evolve next-generation core banking products on modern, cloud-native platforms. You’ll play a key role in developing APIs and integrations, and delivering secure, scalable financial capabilities.
• This role is ideal for engineers with hands-on Thought Machine experience—or those with a strong background in modern core/ledger platforms—who understand financial systems, ledger integrity, and scalable architecture.

What is involved:

• Design and implement core banking product logic (accounts, deposits, lending, fees, interest, limits)
• Build robust, auditable ledger posting logic aligned with accounting principles
• Configure product lifecycles (onboarding, maturity, arrears, write-offs)
• Develop APIs and integration services across payments, KYC, CRM, fraud, and analytics systems
• Build event-driven integrations (Kafka or similar) with strong error handling and reconciliation
• Support data models and reporting for Finance, Risk, and Regulatory requirements
• Write comprehensive automated tests (unit, integration, reconciliation scenarios)
• Support CI/CD pipelines and controlled releases across environments
• Troubleshoot production issues with a focus on stability and root-cause analysis
• Partner with Product Owners and SMEs to translate banking requirements into scalable solutions
• Work closely with Risk and Security teams to ensure compliance and auditability

What you need:

• 5+ years building APIs and integration services in enterprise environments (banking preferred)
• Experience with Thought Machine Vault or similar modern core/ledger platforms
• Hands-on experience with financial product features (interest, fees, repayments, lifecycle events)
• Exposure to payments (SEPA, SWIFT), transaction monitoring, or card processing
• Strong programming experience (Python)
• Experience building REST/gRPC APIs and event-driven systems
• Experience with cloud platforms (AWS, Azure, or GCP), containers (Docker), and CI/CD pipelines
• Familiarity with observability (logging, metrics, tracing) and production support

What’s on offer:

• €80-€95k depending on experience
• Hybrid working model. 2-3 days per week on site
• Competitive benefits package

Apply Now

If you would like to discuss this opportunity in person or with one of our IT Resourcers please forward your CV to Vantage Resources or or [email protected] for a confidential discussion. Vantage Resources will not forward your details without prior discussion and approval.

Vantage Resources is an equal opportunity employer. All qualified applicants will receive equal consideration for engagement and/or employment. An inclusive and diverse workforce is an essential part of the development of our organisation’s culture which we believe enhances both our working environment and the service we provide to our customers.