Systems Administrator (AWS & Windows Infrastructure)
About the role
The Systems Administrator (AWS & Windows Infrastructure) will be responsible for managing, maintaining, and optimizing both cloud (AWS) and on-premises Windows infrastructure environments for a leading IT organization in Colombo, Sri Lanka. The role focuses on ensuring the stability, security, availability, and performance of business-critical systems, including AWS services and Windows Server environments. Key responsibilities include AWS and Windows Server administration, Active Directory management, PowerShell automation, incident management, disaster recovery, and supporting production environments. The ideal candidate will have 3–5 years of hands-on experience in systems administration or cloud infrastructure, strong expertise in AWS and Windows Server, and advanced PowerShell scripting skills. The position offers the opportunity to work in a fast-paced operational environment and collaborate with various technical teams.
Must have
- Bachelor's degree in Information Technology, Computer Science, Computer Engineering, or a related field is preferred.
- Minimum 3–5 years of hands-on experience in systems administration, cloud infrastructure, or IT operations supporting production environments.
- Strong practical experience with AWS services, particularly EC2, VPC, S3, IAM, CloudWatch, and AWS Systems Manager (SSM).
- Proven experience administering Windows Server environments (2016–2025).
- Solid expertise in Active Directory, Group Policy, DNS, IIS, and Microsoft infrastructure technologies.
- Advanced PowerShell scripting skills for system administration and operational automation.
- Strong troubleshooting capabilities across cloud, server, infrastructure, and application environments.
- Experience supporting production systems with high availability and reliability requirements.
- Knowledge of server patching, backup management, disaster recovery, and business continuity processes.
- Familiarity with incident management, production support, and infrastructure monitoring.
- Strong analytical, problem-solving, communication, and stakeholder management skills.
- Ability to work in a fast-paced operational environment and participate in on-call support and off-hours maintenance activities.
Nice to have
- Working knowledge of Infrastructure as Code tools such as Terraform or AWS CloudFormation will be an added advantage.
- Basic SQL Server administration knowledge will be beneficial.
- AWS Certified SysOps Administrator – Associate.
- Microsoft Certified: Hybrid Administrator Associate.
- Other relevant cloud, infrastructure, or systems administration certifications will be considered an advantage.
Technologies
- Active Directory
- AWS
- CloudFormation
- CloudWatch
- DevOps
- DNS
- EC2
- IAM
- IIS
- Infrastructure as Code
- PowerShell
- S3
- SQL
- SQL Server
- Terraform
- VPC
- Windows
- Windows Server
Highlights
The salary for this role is open to discussion. The position is based in Colombo, Sri Lanka, and may require participation in on-call support rotations and off-hours maintenance. Preferred certifications include AWS Certified SysOps Administrator – Associate and Microsoft Certified: Hybrid Administrator Associate. A bachelor's degree in a relevant field is preferred but not mandatory.
Jobs across Sri Lanka, watched for you.Colombo, Sri Lanka