Citigroup Inc.

API Reliability Engineer at Citi

📍 Location
mississauga, peel region
⏰ Job Type
Full-time
📅 Posted
June 01, 2026
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Job Description

Citi is seeking an experienced API Reliability Engineer dedicated to enhancing API performance and reliability in a fast-paced environment. This role places emphasis on proactive monitoring and incident management to ensure stellar client experiences.
As an API Reliability Engineer, you will take ownership of high-availability API systems, utilizing your deep technical skills in Java and AWS to foster continuous improvement. This hands-on role requires collaboration with cross-disciplinary teams to refine operational strategies and automate monitoring solutions.
Key Responsibilities:
• Manage operations of large-scale distributed API ecosystems
• Implement monitoring solutions to ensure system health
• Analyze and optimize API performance metrics
• Lead post-incident reviews and recommend improvements
• Engage in automation for operational tasks and systems
Requirements:
• Extensive support experience with Java and API technologies
• Strong technical knowl...

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