Senior Full Stack Engineer, ATM Platforms - VP

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

Benefits offered by this job

Medical coverage

Dental & vision coverage

401(k)

Life, disability insurance

Wellness programs

Paid time off

Job summary

Citi in Irving, Texas is seeking a Senior ATM & Financial Systems Software Engineer to design and secure embedded ATM software, integrate with core banking, and build dashboards. You will bridge low-level hardware with cloud-native enterprise architectures, ensuring high availability and compliance.

The role covers API development, cryptography, DevOps, and cross-functional collaboration with hardware, cybersecurity and compliance teams.

Qualifications

• Bachelor’s or Master’s degree in Computer Science, Computer Engineering, Software Engineering, or a closely related field.

Responsibilities

• ATM Software development for embedded terminals and hardware interaction.
• API & integration engineering for fleet management and core banking systems.
• Security measures including cryptographic protocols and secure boot processes.
• Full-stack development of backend services and dashboards for fleet monitoring.
• Database design for transactional integrity and high-volume telemetry.

Skills

Embedded systems

Full-stack development

Financial transactions

Security hardening

Cloud & DevOps

Education

Bachelor's or Master’s degree in Computer Science or related field

Tools

C++

Java

Python

Node.js

Go

Angular

React

Vue.js

PostgreSQL

Oracle

MongoDB

Cassandra

Docker

Kubernetes

OpenShift

Job description

Position Overview

We are seeking a highly skilled and versatile Senior ATM & Financial Systems Software Engineer to join our engineering team. In this role, you will bridge the gap between low-level embedded hardware systems and modern cloud-native enterprise architectures. You will be responsible for designing, developing, and securing critical ATM software, transaction processing systems, and administrative dashboards. The ideal candidate possesses a deep understanding of financial protocols, robust security standards, and modern DevOps practices, ensuring high availability, compliance, and seamless integration across our distributed banking infrastructure.

Key Responsibilities

• ATM Software Development: Design, develop, and maintain robust, high-performance software for ATMs and financial self-service terminals, ensuring seamless low-level interaction with hardware components.
• API & Integration Engineering: Architect, implement, and maintain secure internal and external APIs for ATM fleet management, real-time status reporting, and seamless integration with core banking and enterprise systems.
• Security & Cryptography Implementation: Implement and enforce advanced security measures, including cryptographic protocols (Triple DES, AES), tokenization, secure boot processes, and intrusion detection systems to safeguard financial transactions and terminal integrity.
• Full-Stack & Dashboard Development: Build scalable backend services using modern languages and develop intuitive, responsive administrative dashboards for fleet monitoring and system configuration.
• Database & Telemetry Management: Design and optimize relational databases for transactional integrity and leverage NoSQL databases for high-volume logging, auditing, and telemetry data analysis.
• DevOps & Cloud Deployment: Orchestrate containerized deployments and manage backend infrastructure on cloud platforms, utilizing automated CI/CD pipelines to ensure rapid, reliable, and secure software delivery.
• Compliance & Regulatory Adherence: Ensure all software development and system configurations strictly adhere to financial regulations, industry standards (e.g., EMV, ADA), PCI DSS, and internal corporate compliance policies.
• System Diagnostics & Troubleshooting: Diagnose, debug, and resolve complex software and network issues within a highly critical, distributed, and high-availability production environment.
• Cross-Functional Collaboration: Partner closely with hardware engineers, cybersecurity specialists, compliance officers, and business stakeholders to align technical solutions with operational and business objectives.

Qualifications

• Minimum Experience: 5+ years of professional software engineering experience, with a strong focus on embedded systems, financial transaction systems, or ATM software development.
• Embedded & Low-Level Systems: Proven track record of developing low-level applications interacting directly with hardware peripherals (e.g., card readers, cash dispensers, encrypting PIN pads).
• Full-Stack Development: Demonstrated experience building enterprise-grade backend services and modern, responsive web-based administrative dashboards.
• Financial Transaction Systems: Hands-on experience working with financial transaction messaging standards and secure payment processing workflows.
• Security Hardening: Direct experience hardening operating systems (Windows Embedded/Linux) and implementing secure coding practices, threat modeling, and vulnerability remediation.
• Cloud & Containerization: Experience deploying and managing applications in cloud environments using container orchestration platforms.

Technical Skills

• Programming Languages:
  • Low-Level/Systems: C++, Java
  • Backend/Services: Python, Node.js, Go
  • Frontend Frameworks: Angular, React, Vue.js
• Database Management:
  • Relational: PostgreSQL, Oracle Database
  • NoSQL: MongoDB, Cassandra, or similar (for logging and telemetry)
• Operating Systems: Windows Embedded, Linux Distributions (Red Hat, Ubuntu, etc.), including OS-level security configurations and hardening.
• Networking & Financial Protocols:
  • Network: TCP/IP, HTTP/S, SFTP, TLS/SSL
  • Financial: ISO 8583 (transaction messaging), EMV (chip card standards)
• Security & Cryptography:
  • Encryption Standards: Triple DES, AES, RSA
  • Security Mechanisms: Tokenization, Secure Boot, Intrusion Detection Systems (IDS), Threat Modeling, Static/Dynamic Application Security Testing (SAST/DAST)
• Cloud & DevOps:
  • Cloud Platforms: OSE (OpenShift Container Platform)
  • Containerization: Docker, Kubernetes
  • CI/CD Tools: Jenkins, Tekton, Git/Bitbucket, and automated testing frameworks

Professional Skills

• Analytical & Problem-Solving: Exceptional diagnostic and analytical skills, with a proven ability to troubleshoot complex, distributed, and highly critical systems under tight timelines.
• Communication & Collaboration: Strong verbal and written communication skills, with the ability to translate complex technical concepts for non-technical stakeholders and collaborate effectively with multidisciplinary teams.
• Regulatory & Compliance Mindset: Deep commitment to security, quality, and compliance, with a meticulous approach to adhering to industry standards and regulatory mandates.
• Adaptability & Continuous Learning: Ability to rapidly adapt to evolving technologies, bridging the gap between legacy embedded systems and modern cloud-native architectures.

Education & Certifications

• Education:
  • Bachelor’s or Master’s degree in Computer Science, Computer Engineering, Software Engineering, or a closely related technical field.

Job Family Group

Technology

Job Family

Applications Development

Time Type

Full time

Primary Location

Irving Texas United States

Salary

$125,760.00 - $188,640.00

Benefits

Citi offers competitive employee benefits, including:

• medical coverage
• dental & vision coverage
• 401(k)
• life, accident, and disability insurance
• wellness programs
• Citi also offers paid time off packages
• planned time off (vacation)
• unplanned time off (sick leave)
• paid holidays

Anticipated Posting Close Date

Aug 06, 2026

Automated Processing and AI

We use automated processing, including artificial intelligence, for our legitimate business interests (or our reasonable and appropriate business purposes) to identify and align the candidate's skills and abilities with a specific job opening. Additionally, if you so choose, or consent, we can match your skills and abilities to other suitable roles at Citi. Importantly, all our hiring processes and decisions, including determining your suitability for a role, are conducted, checked, and decided by individuals. Our automated processing and AI do not involve relying on automatic or autonomous decision-making. Please refer to any Jurisdictional Considerations, with specific provisions for your country (where relevant) for further details. Illinois residents – AI Notice and Right

Equal Opportunity Employer

Citi is an equal opportunity employer, and qualified candidates will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or any other characteristic protected by law.

Disability Accommodation

If you are a person with a disability and need a reasonable accommodation to use our search tools and/or apply for a career opportunity review Accessibility at Citi.

View Citi’s EEO Policy Statement and the Know Your Rights poster

View Citi’s EEO Policy Statement and the Know Your Rights poster.