Expert Integration Engineer

Purpose:

To design and govern complex enterprise integration solutions, ensuring secure, scalable, reliable, and efficient connectivity between applications, platforms, partners, and external services. 

Main Duties and Responsibilities:

• Act as senior technical authority for enterprise integration across the technology estate. 

• Design complex integration architectures, APIs, interfaces, and messaging solutions. 

• Define integration standards, patterns, protocols, and engineering practices. 

• Lead technical implementation of critical system integrations with partners, schemes, and internal platforms. 

• Design synchronous, asynchronous, event-driven, and API-based integration solutions. 

• Build and govern integrations on the enterprise integration stack (IBM ACE/API Connect, MQ, Kafka). 

• Own API lifecycle management, including versioning, gateway policies, and consumer onboarding. 

• Ensure integrations meet security, performance, availability, and scalability requirements. 

• Apply security controls for partner connectivity, including mTLS, certificate management, encryption, and secure key handling. 

• Ensure integrations satisfy regulatory, audit, and change-governance requirements. 

• Review integration designs and implementations for architectural compliance. 

• Troubleshoot complex integration and production issues across system boundaries. 

• Optimize integration performance, reliability, monitoring, error handling, and reconciliation. 

• Identify integration risks, dependencies, and technical debt, and recommend improvements. 

• Mentor integration engineers and contribute to enterprise integration architecture initiatives. 

Requirements

QUALIFICATIONS:

• Bachelor’s Degree in Computer Science or a related field; Master’s preferred. 

• 5+ years in enterprise integration, including senior technical ownership. 

• Deep expertise in IBM integration tooling (ACE, API Connect, MQ, DataPower) and event streaming (Kafka). 

• Strong grasp of API design, security protocols (OAuth2, mTLS), and message-level security. 

• Payments experience with ISO 8583, ISO 20022, or scheme integrations (Good to have) 

• Professional Certificates.