Systems Engineer

Powering the world’s payments ecosystem

ACI powers the payments ecosystem – globally, and you power ACI. You’ll innovate, collaborate, and grow – in an energetic technology culture with decades of proven success. ACIers – in all roles and levels – are truly your colleagues and many are your friends. Our size and reach allow you to see the global impact of your work. You are visible, your talents are valued, and you are empowered to shape the future of payments.

As a Sr Systems Engineer in Norcross, GA or Omaha, NE
, you will join a diverse, passionate team, dedicated to powering the world’s payments ecosystem!

The Sr Systems Engineer II independently monitors and maintains production systems to ensure reliability and availability. This mid-level position focuses on leading incident response, developing automation solutions, implementing monitoring and observability, and mentoring junior engineers while building expertise in operational practices.

• Independently monitor and troubleshoot production systems, applications, and infrastructure
• Lead incident response for moderate complexity issues and coordinate resolution efforts
• Perform root cause analysis and implement preventive measures
• Manage and participate in on‑call rotation providing production support
• Execute operational tasks including deployments, maintenance windows, and configuration changes

• Develop automation scripts to reduce manual toil and improve operational efficiency
• Configure and maintain monitoring, alerting, and observability tools
• Implement logging and metrics collection for system visibility
• Create and maintain runbooks and operational documentation
• Contribute to infrastructure as code and configuration management efforts

• Mentor junior operations engineers on tools, processes, and best practices
• Collaborate with engineering teams on system reliability and operational requirements
• Participate in post-mortems and contribute to continuous improvement initiatives
• Share knowledge through documentation, presentations, and team discussions

• Bachelor’s degree in computer science, Information Systems, or related technical field
• Equivalent experience (4+ years) may substitute for degree

• 4-6 years of professional experience in operations, Dev Ops, or infrastructure roles
• Proven track record of independently managing production systems
• Experience with incident management and troubleshooting complex issues
• Payments, financial services, or regulated industry experience preferred

• Strong proficiency with operating systems (Linux/Unix and Windows)
• Experience with cloud platforms and infrastructure services
• Strong scripting and automation skills (Python, Bash, Power Shell, or similar)
• Experience with monitoring and observability tools and practices
• Understanding of networking concepts and troubleshooting (TCP/IP, DNS, load balancing)
• Experience with database administration and troubleshooting
• Familiarity with CI/CD pipelines and deployment automation
• Knowledge of ITIL or similar operational frameworks

• Strong analytical and problem-solving abilities
• Excellent communication skills for incident management and technical collaboration
• Self‑motivated with ability to work independently under pressure
• Collaborative team player with mentoring capabilities

• Experience with containerization and orchestration technologies
• Familiarity with infrastructure as code tools and practices
• Understanding of SRE principles and practices
• Cloud platform certifications

• Hybrid work model (2-3 days in-office); multiple office locations available
• Minimal travel required, occasional team meetings or training
• On-call rotation participation; occasional extended hours for incident response

• Ensure Accountability: holding self and others accountable to meet commitments.
• Drives Results: consistently achieving results, even under tough circumstances.
• Customer Focus: building strong customer relationships and delivering customer‑centric solutions.
• Cultivate…