Senior Infrastructure Engineer
TLDR
Design and optimize scalable infrastructure and network systems to ensure high availability, security, and performance for business-critical applications.
We are looking for a highly skilled Senior Infrastructure & Network Engineer to design, manage, and optimize scalable infrastructure and network systems that support business-critical applications and services. This role will be responsible for ensuring high availability, security, performance, and reliability across cloud and on-premise environments.
The ideal candidate has strong hands-on experience in infrastructure operations, networking, cloud platforms, automation, and security best practices.
Responsibilities:
- Design, implement, and maintain scalable infrastructure and network architecture
- Manage cloud and on-premise environments, including compute, storage, networking, and security
- Configure and troubleshoot network infrastructure including routers, switches, VPNs, firewalls, and load balancers
- Monitor infrastructure health, system availability, and network performance
- Implement infrastructure automation using scripting and Infrastructure-as-Code tools (Prefered)
- Support CI/CD pipelines and deployment infrastructure (Prefered)
- Manage Kubernetes clusters, containerized environments, and related orchestration tools (Prefered)
- Perform system hardening, patching, backup, disaster recovery, and security improvements
- Troubleshoot incidents, perform root cause analysis, and ensure timely resolution
- Collaborate with software engineering, security, and Platform & SRE teams to improve platform reliability
- Create and maintain technical documentation, SOPs, and infrastructure diagrams
- Participate in on-call rotation and incident response when required
Requirements
- Bachelor’s degree in Computer Science, Information Technology, or related field
- 6–10 years of experience in infrastructure, network engineering, or Platform/SRE roles
- Strong knowledge of TCP/IP, DNS, VPN, routing, switching, firewalls, and network security
- Hands-on experience with cloud platforms such as AWS, GCP, or Azure
- Experience managing Linux-based systems in production environments
- Strong experience with Kubernetes and container technologies (Docker, Helm, etc.) (Prefered)
- Familiarity with Infrastructure-as-Code tools such as Terraform or Ansible
- Experience with monitoring/logging tools such as Prometheus, Grafana, ELK, Datadog, or similar (Prefered)
- Knowledge of CI/CD pipelines and automation practices (Prefered)
- Strong troubleshooting and analytical skills
- Good communication and collaboration abilities
Ajaib builds a mobile-first fintech platform that makes stock trading accessible for retail investors in Indonesia, particularly targeting millennials. What sets us apart is our commitment to innovation and creating a user-friendly experience that empowers young traders to navigate the financial markets with confidence.