Hybrid Treasury Systems Specialist (FIS Integrity)

Project Freelance; Greater London; Hybrid; GBP 80,000 - 100,000; Full time

Job summary

Onyx-Conseil is seeking a Level 3 Treasury Systems Specialist in London to safeguard the integrity of the FIS Integrity TMS and its integrations. You will configure workflows, manage cross‑system data, and ensure releases meet governance and audit standards.

The role focuses on risk containment, regression governance, and strong collaboration with treasury operations to deliver secure platform enhancements within a hybrid London office setup.

Qualifications

• 1-2 years’ experience in 2nd/3rd line support capacity in FIS Integrity
• Strong configuration and data model knowledge
• Strong Treasury business operation understanding
• Advanced SQL capability
• Integration experience (APIs, SWIFT, SFTP, ERP)
• Experience with SaaS release models

Responsibilities

• Configure and maintain FIS Integrity TMS workflows, parameters, and reference data
• Manage integration architecture across banks, ERP, and market data providers
• Ensure system configuration aligns with Treasury processes, control standards, and SaaS constraints
• Maintain technical documentation and configuration baseline for auditability
• Contains and resolves high impact issues affecting risk and compliance
• Define regression testing scope and approve production deployments

Education

Degree in IT/Engineering/Finance

Vendor certifications preferred

Advanced SQL capacity

Strong treasury business operation understanding

Strong configuration and data model knowledge

Integration experience (APIs, SWIFT, SFTP, ERP)

Tools

API integration

SWIFT integration

SFTP integration

ERP integration

SaaS release models

Job description

Onyx-Conseil is seeking a Level 3 Treasury Systems Specialist in London to safeguard the integrity of the FIS Integrity TMS and its integrations. You will configure workflows, manage cross‑system data, and ensure releases meet governance and audit standards.

The role focuses on risk containment, regression governance, and strong collaboration with treasury operations to deliver secure platform enhancements within a hybrid London office setup.