Senior Site Reliability Developer

Job Description

What is the opportunity?

This is an exciting opportunity to join a high-performing team that plays a critical role in ensuring the reliability, scalability, and performance of pre‑production environments for ATM systems. As a Senior Service Reliability Developer, you will be at the forefront of driving innovation and operational excellence in a mission‑critical domain. It is ideal for someone who is passionate about building and maintaining highly reliable, scalable, and secure systems while driving automation and operational excellence.

As a Senior Service Reliability Engineer in the ATM team, you will be responsible for ensuring the reliability, performance, and scalability of our production environment. Your day‑to‑day responsibilities will include:

• Architect and develop solutions to enhance reliability and performance across pre‑production and production environments, ensuring seamless ATM operations.
• Design and implement advanced monitoring tools to proactively detect and resolve system issues, maintaining high availability and performance.
• Develop and deploy automation frameworks for deployment, monitoring, and incident response to minimize manual intervention and improve efficiency.
• Build and optimise CI/CD pipelines to enable faster, more reliable software deliveries.
• Lead incident response efforts, conduct root cause analysis (RCA), and implement long‑term fixes to prevent recurrence.
• Participate in on‑call rotations to address high‑severity production incidents, including off‑hours troubleshooting, cross‑functional coordination, and urgent remediation to ensure 24/7 system reliability.
• Partner with operations, QE, and engineering teams to align on best practices, share knowledge, and ensure smooth system integration.
• Champion Dev Ops and SRE principles by fostering collaboration, continuous improvement, and Infrastructure as Code (IaC).
• Mentor junior team members, share expertise, and contribute to team growth and technical excellence.

To excel as a Senior Service Reliability Developer in the ATM team, you must have the following skills and expertise:

• Proficiency in building and managing CI/CD pipelines, infrastructure as code (IaC) tools (e.g., Terraform, Ansible), and automation frameworks to streamline deployments and operations.
• Experience with monitoring tools (e.g., Prometheus, Grafana, Splunk) and the ability to diagnose and resolve complex system issues in real‑time.
• Strong coding skills in languages such as Python, Go, or Java, along with scripting expertise in Bash, Power Shell, or similar.
• Hands‑on experience with cloud platforms (e.g., AWS, Azure, GCP), containerization tools like Docker and Kubernetes, and a solid understanding of networking concepts (e.g., DNS, load balancing, firewalls, and VPNs) to ensure secure and efficient system communication.
• A proactive approach to identifying and solving technical challenges, coupled with the ability to work effectively in cross‑functional teams.
• Core Technologies:
  • Advanced MDT task sequence creation and troubleshooting
  • Site administration, software deployment, operating system deployment
  • DISM, WIM file management, sysprep automation
  • Advanced scripting for automation and customization
  • Patch management and driver integration
  • MSI creation, App‑V, application compatibility
  • Containerization basics
  • Monitoring solutions (Prometheus, Grafana, or similar)

• Familiarity with advanced networking protocols, SDN (Software‑Defined Networking), and network performance optimisation techniques.
• Understanding of security principles, including vulnerability management, secure coding practices, and compliance standards (e.g., PCI DSS).
• Hands‑on experience with observability platforms (e.g., Datadog, New Relic, or Elastic Stack) to gain deeper insights into system performance and reliability.
• Advanced scripting skills (e.g., Python, Bash, Power Shell) and experience in creating automation scripts for tasks such as system monitoring, deployment, and incident response.

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