Senior ATM & Financial Systems Architect

Citigroup Inc.; Irving (TX); On-site; USD 125,760 - 188,640; Full time

Job summary

Citigroup Inc. seeks a Senior ATM & Financial Systems Software Engineer in Irving, TX to bridge embedded hardware with cloud-native architectures. You will design, develop, and secure ATM software, transaction processing, and administrative dashboards.

The role requires 5+ years in embedded or financial systems, with expertise in security, APIs, and enterprise-grade backend services. On-site, with strong cross-functional collaboration across hardware, cybersecurity, and compliance teams.

Qualifications

• 5+ years of professional software engineering experience in embedded or ATM software.
• Experience with low-level hardware interaction (card readers, cash dispensers, PIN pads).
• Experience building enterprise-grade backend services and modern dashboards.
• Hands-on with financial transaction messaging standards and secure payments workflows.
• Security hardening and secure coding practices, threat modeling, and remediation.
• Cloud deployments with container orchestration and CI/CD pipelines.

Responsibilities

• Design, develop, and maintain ATM software and admin dashboards.
• Architect and maintain APIs for fleet management and core banking integration.
• Implement security measures: Triple DES, AES, tokenization, secure boot, IDS.
• Build scalable backend services and responsive admin dashboards.
• Design relational and NoSQL databases for transactional integrity and telemetry.
• Lead cloud deployments with CI/CD automation (Jenkins, Tekton).
• Ensure compliance with PCI DSS, EMV, ADA and internal policies.
• Troubleshoot complex distributed production environments.

Skills

Embedded systems

Low-level programming

Full-stack development

Financial transaction systems

Security hardening

Cloud computing

Education

Bachelor’s or Master’s degree in Computer Science/Engineering

Tools

OpenShift

Docker

Kubernetes

Jenkins

Tekton

Git/Bitbucket

Job description

Citigroup Inc. seeks a Senior ATM & Financial Systems Software Engineer in Irving, TX to bridge embedded hardware with cloud-native architectures. You will design, develop, and secure ATM software, transaction processing, and administrative dashboards.

The role requires 5+ years in embedded or financial systems, with expertise in security, APIs, and enterprise-grade backend services. On-site, with strong cross-functional collaboration across hardware, cybersecurity, and compliance teams.