Senior DevOps Engineer

About the role

Ajax Systems, an international tech company and the largest manufacturer of security systems in Europe.

Our infrastructure is a part of the product that is invisible to the end user, but critical to the life of the entire system. The safety of our users and their property depends on our uptime. We are constantly developing our cloud solutions and this requires automating our infrastructure, testing and improving its fault tolerance. For this purpose we are looking for Senior DevOps Engineer.

The System Division develops the Ajax software ecosystem — including OS Malevich, the Video Management System, cloud infrastructure, and client applications. The team ensures the stable operation of all system components as a unified digital platform.

What you'll work with:

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Cloud: AWS at the Organization level — VPC, IAM, EC2, EKS, ElastiCache, Route53, Lambda, CloudFront, plus the security services (Config, GuardDuty, WAF, and friends)

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Containers & orchestration: Kubernetes on AWS EKS, Helm

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IaC: Terraform and Terragrunt

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CI/CD: GitHub Actions (primary) and Jenkins

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Languages: Golang, Node.js (TypeScript), Python, Groovy

What we're looking for:

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3+ years working as a DevOps engineer

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Solid command of Linux-based systems and TCP/IP networking

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Hands-on Infrastructure as Code with Terraform and Terragrunt

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Comfortable writing code in at least one of: Golang, Node.js (TypeScript), Python, Groovy

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Real AWS experience across the stack above — VPC, IAM, EC2, EKS, ElastiCache, Route53, Lambda, CloudFront, and AWS security services (Config, GuardDuty, WAF, etc.)

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Building CI/CD pipelines with GitHub Actions and Jenkins

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Hands-on operational experience with Kubernetes (AWS EKS) and Helm

Nice to have:

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Self-managed Elasticsearch stack

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Message brokers: NATS, Kafka

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Databases: MongoDB (Atlas), PostgreSQL, MySQL

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Monitoring & alerting: Datadog, Grafana, VictoriaMetrics, VictoriaLogs

What you'll actually do

You'll be a proactive part of how the platform develops:

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Support and develop our AWS Organization's core infrastructure

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Improve the core infrastructure security posture

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Build proactive monitoring

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Put together cost-optimization plans and drive them

On-duty rotation (roughly once every ~1.5 months)

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Granting access to various services

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Taking part in incident investigation and response