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OneSource Consulting

Junior Software Engineer

OneSource Consulting
Luxembourg · Full-time · Associate

Job Description - Roles and Responsibilities

Job Description:

We are seeking a Senior Software Engineer to design, build, test, and support integration flows, including SWIFT MT/MX message processing. You will work with IBM ACE, ITX, and MQ to ensure smooth system integrations and reliable message-exchange operations.


As a Senior Software Engineer (Integration Systems), you will:

  • Analyse systems, requirements, and integration interfaces, including SWIFT flows
  • Design, develop, test, and deploy message flows (ACE & ITX)
  • Troubleshoot production issues and support root-cause analysis
  • Document integration solutions and deployment steps
  • Provide support for IBM ACE, ITX, IBM MQ, and WSO2 Micro‑Integrator
  • Coordinate issue resolution with middleware vendors
  • Participate in failover and disaster recovery tests
  • Automate tasks using Ansible and Azure DevOps


Qualifications:

What would make you a fit for the role:

  • Bachelor's/Master's Degree with minimum 5+ years of development experience with IBM ACE or IBM Integration Bus, WebSphere, Message Broker, ITX, MQ, and WSO2 Micro‑Integrator
  • Understanding of SWIFT messaging (MT/MX) and financial message flows
  • Experience with IBM MQ V9 and message-based integrations
  • Experience writing DML and DDL queries for Oracle, Sybase and MongoDB database management systems
  • Familiarity with Linux-based deployment environments
  • Knowledge of DevOps and automation tools (Ansible, Azure DevOps pipelines)
  • Experience developing web services using the following standards: XML (XMLNS, XSD, XPATH, JAXB) / JSON (Swagger), Web Services (SOAP, REST), WS-Security, TLS (for HTTPS and TCP/IP connections), JMS, SAML & JWT tokens (for authentication)
  • Strong communication skills in English

Key Skills

Ranked by relevance

swift ansible devops message broker oracle linux saml xml
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Posted
Apr 09, 2026
Type
Full-time
Level
Associate
Location
Luxembourg

Industries

Information Technology & Services

Categories

Information Technology

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