Senior Java Developer – Fix Protocol / Electronic Trading

act digital
📍 Lisbon, Portuguese Republic, Portugal 💼 Full-time 🕒 Posted February 27, 2026

Job Description

We are looking for a FIX Gateway Developer / Engineer to join a team responsible for the development, integration, and operation of FIX-based trading gateways in a high-performance and low-latency environment.

This role focuses on FIX protocol integration, backend development, and operational support, working closely with trading, infrastructure, and integration teams.


Key Responsibilities

  • Develop, configure, and maintain FIX Gateways (FIX 4.X)
  • Implement and support FIX protocol integrations with internal and external systems
  • Analyze and troubleshoot connectivity, messaging, and performance issues
  • Develop and maintain scripts for automation and operational support
  • Ensure gateway stability, availability, and performance
  • Participate in CI/CD pipelines and deployment activities
  • Work closely with infrastructure and middleware teams
  • Contribute to documentation and oper...

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Job Details

  • Location Lisbon, Portuguese Republic
  • Job Type Full-time
  • Category Other-General
  • Posted Date February 27, 2026
  • Application Deadline April 08, 2026