Senior Site Reliability Engineer

3 days ago

Dublin, Ireland OpenJaw Technologies Full time

OpenJaw Technologies is a leading online technology partner of the world’s biggest travel brands, with a customer portfolio that boasts Southwest Airlines, British Airways, Cathay Pacific, and Four Seasons (to name just a few).

We are seeking a highly skilled Senior Site Reliability Engineer to ensure the reliability, security, and scalability of our SaaS platform hosted on AWS. You will be a key player in maintaining 24/7 uptime, optimizing cloud infrastructure, automating deployments, and troubleshooting complex issues. This role requires deep AWS expertise, strong DevOps practices, and collaboration with DevOps, Support, and Engineering teams. This is a permanent, full-time role in an ambitious and dynamic company.

Key Responsibilites

- Cloud Infrastructure & Operations

- Manage and monitor AWS services (EC2, ECS/EKS, RDS, Lambda, S3, CloudFront, VPC, I IAM, etc.).

- Ensure high availability, performance, and cost efficiency of cloud resources.

- Implement Infrastructure as Code (IaC) using Terraform, CloudFormation, or CDK.

- Automate deployments using CI/CD pipelines (GitHub Actions, Jenkins, AWS CodePipeline).

- Configure and optimize monitoring & alerting (CloudWatch, Datadog, Prometheus, OpenSearch).

- Security & Compliance

- Enforce cloud security best practices (IAM policies, encryption, WAF, security groups).

- Conduct vulnerability assessments and collaborate on SOC2/ISO 27001 compliance.

- Troubleshoot network issues (VPN, VPC peering, NACLs, Route53).

- Incident Management & Support

- Lead incident response for production outages and perform root cause analysis (RCA).

- Work with Customer Support to resolve escalated technical issues.

- Maintain runbooks, disaster recovery (DR), and backup strategies.

- Collaboration & Optimization

- Partner with DevOps and Engineering to improve scalability and reliability.

- Mentor junior engineers and document best practices.

- Continuously optimize cost, performance, and automation.

Required Skills & Experience

- 5+ years of hands-on AWS cloud operations/engineering experience.

- Strong expertise in Linux/Windows administration, networking, and scripting (Bash, Python).

- Proficient in containerization (Docker, Kubernetes/EKS) and serverless (Lambda).

- Experience with IaC (Terraform preferred), CI/CD, and configuration management (Ansible).

- Knowledge of monitoring, logging, and APM tools (CloudWatch, ELK, OpenSearch, Datadog).

- Understanding of security best practices (CIS benchmarks, penetration testing).

- AWS Certifications (e.g., AWS Certified SysOps Administrator, Solutions Architect, DevOps Engineer) are a plus.

Soft Skills

- Strong problem-solving and troubleshooting skills.

- Ability to work in a fast-paced, 24/7 SaaS environment.

- Excellent communication for cross-team collaboration.

Nice to have

- Experience in travel tech or B2B SaaS.

- Knowledge of multi-region architectures.

- Familiarity with ITIL processes (change management, incident management).

If you wish to be considered for this position, please submit your CV to recruitment@openjawtech.com

OpenJaw Technologies is an equal opportunities employer. No agency calls please.

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