Lead Site Reliability Engineer/ Expert (Palo Alto & Versa SD‑WAN Experience)

SITA; Delhi; Hybrid; INR 350,000 - 700,000; Full time

Job summary

SITA is seeking an experienced Reliability/DevOps Engineer to design and operate highly available production systems across cloud and on‑prem environments. You will drive automation, implement zero‑downtime deployments, and maintain robust observability to prevent incidents.

You will collaborate with Product, Engineering, and Service Support to ensure DR readiness, scalable architectures, and continuous improvement of service performance across global networks. Remote-friendly role.

Qualifications

• Bachelor’s degree in Computer Science, Information Technology, Engineering, or a related field.
• Master’s degree preferred for senior roles.
• Certifications in cloud platforms (AWS, Azure, Google Cloud) or DevOps methodologies.
• Certifications in automation and IaC tools (Ansible, Terraform).
• Certifications in observability and monitoring platforms (Dynatrace, Prometheus, Grafana).
• Certifications in ServiceNow, Jira, or other operational tooling.

Responsibilities

• Design & maintain resilient systems ensuring high availability, scalability, and fault tolerance.
• Ensure effective Disaster Recovery (DR), failover strategies, and resilience engineering across environments.
• Improve platform reliability, observability, and performance across cloud and on‑premises systems.
• Establish and maintain SLIs, SLOs, and error budgets to measure and govern service reliability.
• Take ownership of production availability, capacity planning, performance tuning, and long‑term reliability initiatives.
• Drive automation for infrastructure provisioning, deployment, monitoring, and operational workflows.
• Develop and implement auto‑remediation and self‑healing solutions to reduce manual intervention.
• Manage CI/CD pipelines and Infrastructure as Code (IaC) frameworks for secure, repeatable deployments.
• Implement and manage zero‑downtime deployment strategies (blue‑green, canary, rolling).
• Support containerized and cloud‑native platforms including Kubernetes, Docker, and distributed systems.
• Support NetOps tooling and network observability, ensuring visibility into network performance, events, and operational health.

Skills

Reliability engineering

CI/CD automation

Observability

Kubernetes

Cloud platforms (AWS/Azure)

Python scripting

Incident management

Education

Bachelor’s degree in CS/IT/Engineering

Master’s degree preferred

Tools

Terraform

Ansible

Docker

Prometheus

Dynatrace

Job description

WELCOME TO SITA

At SITA, we keep airports moving, airlines flying smoothly, and borders open. Our technology and communication innovations power the success of the global air travel industry.

Overview

You'll find us in 95% of international airports, working closely with over 2,500 transportation and government clients. Each partnership brings unique challenges, and we thrive on delivering fresh solutions and cutting‑edge tech to keep operations running like clockwork. We don’t just move the world forward—we’re proud to be recognized as a Great Place to Work® by 79% of our employees and certified in most of our growing locations. Here, we feel empowered, supported, and inspired to grow.

Are you ready to love your job? The adventure begins right here, with you, at SITA.

About The Role & Team

Responsible for ensuring highly reliable, scalable, and resilient production systems across cloud and on‑prem environments. Ensures high availability, disaster recovery readiness, and continuous improvement of service performance. Leads automation initiatives for provisioning, deployment, monitoring, and self‑healing to reduce manual effort and improve stability. Owns the event catalog, operational readiness, and reliability engineering practices to prevent recurrence of incidents and strengthen system resilience. Drives collaboration across Product, Engineering, T&E ICE, and Service Support Architects to ensure provider‑grade reliability and seamless operational integration of new releases.

What You’ll Do

• Design & maintain resilient systems ensuring high availability, scalability, and fault tolerance.
• Ensure effective Disaster Recovery (DR), failover strategies, and resilience engineering across environments.
• Improve platform reliability, observability, and performance across cloud and on‑premises systems.
• Establish and maintain SLIs, SLOs, and error budgets to measure and govern service reliability.
• Take ownership of production availability, capacity planning, performance tuning, and long‑term reliability initiatives.

Automation, DevOps & NetOps

• Drive automation for infrastructure provisioning, deployment, monitoring, and operational workflows.
• Develop and implement auto‑remediation and self‑healing solutions to reduce manual intervention.
• Manage CI/CD pipelines and Infrastructure as Code (IaC) frameworks for secure, repeatable deployments.
• Implement and manage zero‑downtime deployment strategies (blue‑green, canary, rolling).
• Support containerized and cloud‑native platforms including Kubernetes, Docker, and distributed systems.
• Support NetOps tooling and network observability, ensuring visibility into network performance, events, and operational health.

Incident, Problem & Event Management

• Perform incident management, production troubleshooting, and lead RCA/PMIR (Postmortem) for critical outages.
• Proactively identify reliability gaps, performance bottlenecks, and operational risks.
• Optimize incident, event, and problem management processes to reduce MTTR and improve operational efficiency.
• Define and maintain the event catalog, thresholds, and remediation workflows.
• Develop event response protocols and ensure teams are trained for rapid incident handling.

Observability & Monitoring

• Build and maintain observability solutions using monitoring, logging, tracing, and alerting platforms.
• Implement APM, distributed tracing, and proactive alerting to detect issues early.
• Integrate network telemetry and NetOps monitoring tools into the overall observability stack.
• Collaborate with stakeholders to improve event coverage and post‑event learning.
• Experience with AI‑assisted observability, anomaly detection, and predictive alerting.

Deployment & Operational Readiness

• Own the quality of new release deployments for the PSO.
• Conduct operational readiness assessments and manage deployment risk.
• Ensure supportability for new applications, platform releases, and infrastructure changes.
• Coordinate with internal/external stakeholders to drive continuous service improvement.

Cross‑Functional Collaboration

• Work closely with Development, Platform Engineering, Product, T&E ICE, and Service Support Architects to embed reliability best practices.
• Collaborate with vendors and engineering teams to enhance system reliability and operational excellence.
• Support new product productization as SGS technical expert and ensure operational readiness.

Who You Are

Education and Professional Qualifications

• Bachelor’s degree in Computer Science, Information Technology, Engineering, or a related field. Master’s degree preferred for senior roles.
• Relevant certifications such as ITIL, CCNP/CCIE, Palo Alto Security, SASE, SDWAN, Juniper Mist/Aruba, CompTIA Security+, or Certified Kubernetes Administrator (CKA).
• Certifications in cloud platforms (AWS, Azure, Google Cloud) or DevOps methodologies.
• Certifications in automation and IaC tools (Ansible, Terraform).
• Certifications in observability and monitoring platforms (Dynatrace, Prometheus, Grafana, ELK).
• Certifications in ServiceNow, Jira, or other operational tooling.

Experience

• 8+ years in IT operations, service management, or infrastructure reliability, including roles such as Site Reliability Engineer, Problem Manager, or DevOps Engineer.
• Strong experience with high availability systems, resilience engineering, and DR readiness.
• Deep expertise in RCA, incident management, PMIR, and implementing permanent fixes for recurring issues.
• Hands on experience with CI/CD, automation, IaC, and self healing/auto remediation workflows.
• Proficiency in observability platforms (APM, logging, tracing, alerting) and integrating network telemetry / NetOps monitoring.
• Experience defining and governing SLIs, SLOs, and error budgets to improve service reliability.
• Experience with Kubernetes, containerized workloads, and distributed systems.
• Experience managing deployments, operational readiness, risk assessments, and improving event/problem management processes.
• Strong cross functional collaboration with Development, Operations, Engineering, Product, T&E ICE, and SSA.
• Familiarity with cloud platforms, scalable architectures, and zero downtime deployment strategies.

Technical Skills

• Cloud Infrastructure — AWS/Azure, Linux, virtualization, HA/DR architecture.
• Automation & IaC — Ansible, Terraform, CI/CD pipelines, self‑healing workflows.
• Observability & Monitoring — APM, logging, tracing, alerting, Dynatrace, Prometheus, Grafana, ELK.
• NetOps Monitoring — network telemetry, event monitoring, and operational visibility tools.
• Containerization & Orchestration — Docker, Kubernetes, distributed systems.
• Deployment & Release Engineering — zero‑downtime strategies (blue‑green, canary), operational readiness.
• Programming & Scripting — Python, Bash, PowerShell for automation and tooling.
• Reliability Engineering — SLIs/SLOs, error budgets, capacity planning, performance tuning.

Qualifications

We offer a diverse and inclusive environment. Work from home up to 2 days/week and up to 30 days a year to work from any location. Employee wellbeing support, professional development opportunities, and competitive benefits that align with local market and employment status.

SITA is an Equal Opportunity Employer. We value a diverse workforce. In support of our Employment Equity Program, we encourage women, aboriginal people, members of visible minorities, and/or persons with disabilities to apply and self‑identify in the application process.