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, 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 haves
- 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 [email protected]
OpenJaw Technologies is an equal opportunities employer. No agency calls please.
Job Types: Full-time, Permanent
Benefits:
- Bike to work scheme
- Company events
- Company pension
- Flexitime
- Private medical insurance
- Sick pay
- Work from home
Application question(s):
- Do you have 5+ years of hands-on AWS cloud/operations experience?
- Do you have experience or exposure to security best practices (CIS Benchmarks, penetration testing)?
- Do you require a work permit to work in Ireland?
- Do you have EKS experience?
Experience:
- AWS Cloud operations/engineering: 5 years (required)
Work authorisation:
- Ireland (required)
Work Location: Hybrid remote in Arbour Hill, Dublin, CO. Dublin
