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Java Developer - Smart POS & Digital Payments in Ireland (Freelance)

Limerick  ‐ Onsite
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Keywords

Java (Programming Language) Application Programming Interfaces (APIs) E-Commerce Payment Systems PCI Data Security Standards Venta al por Menor Tokenization Kotlin Flutter JavaScript (Programming Language) Amazon Web Services Microsoft Azure Mobile Application Development Cloud Computing Databases Cryptography Financial Accounting Infrastructure Management Mobile Application Software Python (Programming Language) PostgreSQL MongoDB MySQL Near Field Communication Systems Integration TypeScript WebSocket Point-of-sale Systems Google Cloud Spring-boot Swift (Programming Language) Firebase Payment Processing Kubernetes Graphql Restful Api Docker Programming Languages Google Pay

Description

Java Developer - Smart POS & Digital Payments

General information
Reference: 172326
Location: 5 Days Limerick
Start: 24.02.2025 (ASAP)
Volume: Full time (100%)
Duration: 31.12.2025 + Option
Languages: English

Tasks:

  • POS Terminal Development & Card Payment Integration - Contactless, mobile, and chip-card transactions
  • Digital Payment Processing - Expertise in Apple Pay, Google Pay, NFC & QR code transactions
  • Omnichannel Payment Solutions - Development for retail POS, E-commerce, and mobile platforms
  • Security & Compliance - Implementation of PCI DSS, PSD2, Tokenization, and encryption standards
  • Custom API & SDK Development - Tailored Java-based solutions for seamless integration into POS systems, mobile apps, and E-commerce platforms

Tech Stack - Java as Core Language

  • Programming Languages: Java (main), Kotlin, Swift, JavaScript, TypeScript, Python
  • Java Frameworks: Spring Boot, Quarkus, Jakarta EE, Micronaut
  • Mobile Development: Android (Java/Kotlin), Flutter
  • Cloud & Infrastructure: AWS, Google Cloud, Microsoft Azure, Docker, Kubernetes
  • Payment Technologies: EMV, NFC, Tokenization, PCI DSS Compliance, HSM Integration
  • APIs & Integrations: REST, GraphQL, WebSockets, ISO 8583 (financial transactions)
  • Databases: PostgreSQL, MySQL, MongoDB, Firebase
Start date
n.a
From
Westhouse Consulting GmbH
Published at
18.02.2025
Project ID:
2849514
Contract type
Freelance
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