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W3Global

Backend Developer

W3Global
Ireland · Contract · Entry
Subcon / Contract Duration: 6 months (rolling)

Permit - Stamp4 (min 6 months Validity) Or Irish or European

Need CVs only immediate Joiner or max 3 to 4 week notice period

Candidates must work from Office weekly 3 days

Min Experience should be 9+ yrs

Below JD for reference

A Backend Developer with finance and cards experience will design, develop, and maintain the server-side logic, databases, and APIs for financial applications, focusing on secure and efficient data management. This role requires strong programming skills, particularly in languages like Java or Node.js, and experience with financial technologies and card processing systems.

Responsibilities

System Design and Development:

  • Design, develop, and maintain robust and scalable backend systems for financial applications, including core application logic, databases, and APIs.

Data Management

  • Manage and optimize data storage and retrieval using both SQL and NoSQL databases, ensuring data integrity and security.

API Development

  • Build and maintain RESTful APIs and microservices, ensuring they are well-documented, secure, and performant.

Financial Systems Integration

  • Integrate with various financial systems, including payment gateways, card processors, and banking APIs.

Security And Compliance

  • Implement security best practices, ensuring compliance with financial regulations and data protection standards.

Performance Optimization

  • Monitor and optimize the performance of backend systems, ensuring high availability and responsiveness.

Testing And Quality Assurance

  • Write unit and integration tests, participate in code reviews, and ensure code quality.

Collaboration And Communication

  • Work closely with front-end developers, product managers, and other stakeholders to deliver high-quality solutions.

Staying Updated

  • Continuously learn and adapt to new technologies and trends in backend development and the financial industry.

Qualifications

  • Programming Languages: Strong proficiency in Java, Python, or Node.js is often required.
  • Databases: Experience with both relational (SQL) and NoSQL databases is highly desirable.
  • API Development: Proven experience in designing and developing RESTful APIs and microservices.
  • Financial Systems: Knowledge of financial technologies, card processing systems, and relevant regulations.
  • Cloud Technologies: Familiarity with cloud platforms like AWS, Azure, or Google Cloud is often a plus.
  • Security: Strong understanding of security best practices and experience with secure coding.
  • Problem Solving: Excellent problem-solving and analytical skills.

Key Skills

Ranked by relevance

cloud restful apis nosql java sql high availability microservices storage python server aws
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Country Guide

Ireland

English-speaking EU tech hub

Posted
Oct 23, 2025
Type
Contract
Level
Entry
Location
Dublin
Company
W3Global

Industries

Accounting

Categories

Information Technology

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