Architect global payment platforms at Citi using Java, Spring Boot, and resilient microservices in a hybrid working model. As a Senior Lead Software Engineer, you will modernize Core Payment Systems within Citi’s Treasury and Trade Solutions business. You will set engineering direction for high-throughput platforms spanning 160 countries and more than 140 currencies. The work covers architecture, production ownership, resilience, and scalable integrations. Key Responsibilities:

Lead software development from architecture through production ownership Build high-throughput microservices with Java and Spring Boot Design multi-region failover and zero-downtime release strategies Define RESTful and event-based API standards Mentor engineers and strengthen technical quality Requirements:

Six-plus years of software engineering experience Three-plus years setting technical direction for teams Expert Java and Spring Boot proficiency Experience with Docker, Kubernetes, Kafka, or RabbitMQ Knowledge of resilience patterns, databases, CI/CD, and testing Lead Citi’s payment modernization through Java architecture, resilient microservices, and engineering direction across global transaction infrastructure.

📌 Senior Payment Systems Software Architect (Mississauga)
🏢 Citi
📍 Mississauga