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Fiserv

B2B payments and banking technology

Integrations Engineer

Backend EngineeringConfirmed live in the last 24 hours
Full-timeLimerick, IrelandNo salary listedIn-person

About the Job

Requirements

  • Bachelor's degree in Computer Science, Engineering, or related field.
  • 5-8+ years of experience in payment systems, POS terminals, or payment application development.
  • Strong experience in designing and implementing API Gateway solutions.
  • Proficiency in creating OpenAPI specifications and documentation for use with tools like Swagger or similar frameworks.
  • Hands-on experience in developing RESTful or GraphQL APIs.
  • Familiarity with best practices for API security, scalability, and performance optimization.
  • Programming skills - Working knowledge of Java for backend API development and integration.

Responsibilities

  • Define and maintain the integration roadmap for third-party solutions within the payment terminal ecosystem.
  • Own end-to-end integration lifecycle for third-party solutions.
  • Collaborate with product, engineering, and business teams to identify integration opportunities that enhance functionality and client experience.
  • Ensure compliance with industry standards (EMV, PCI DSS) and regulatory requirements during integration planning.
  • Lead technical design, API/SDK integration, and certification processes.
  • Drive quality, security, and regulatory compliance for all integrations.
  • Identify opportunities to optimize integration processes and reduce time-to-market. Stay updated on emerging technologies, payment trends, and terminal innovations.
  • Negotiate timelines, deliverables, and SLAs with external partners.
  • Manage end-to-end integration lifecycle: requirement gathering, design, development, testing, certification, and deployment.

About the Company

Fiserv

B2B payments and banking technology

Fiserv provides financial technology and services to banks, credit unions, merchants, and other financial firms, spanning payments, core banking, and digital networks. Its products work by licensing software, processing transactions, and delivering professional services that let clients manage accounts, merchant transactions, and digital payments through integrated systems. It stands apart as an end-to-end supplier that combines core banking, payments, merchant acquiring, and networks under one roof, enabling cross-sell opportunities and growth through acquisitions. Its goal is to help financial institutions and merchants run large-scale payments and banking operations more efficiently with a comprehensive, integrated technology stack.

Company size
10,001+
Company stage
IPO
Headquarters
Milwaukee, WI
Founded
1984

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