Senior DevOps Engineer (Security domain)

The team is building an innovative security solution that protects publishers, advertisers, and users from malvertising attacks within the programmatic advertising ecosystem. Our stack includes JavaScript (ES, TypeScript, React) and Go, and we process significant volumes of data to combat revenue loss and poor user experience caused by malicious ads.

We’re looking for a skilled and proactive Senior DevOps Engineer with high-load expertise to help scale our infrastructure as the team grows and the platform evolves.

Customer

The Customer is a US-based cybersecurity company specializing in bot mitigation and ad fraud prevention. They deliver enterprise-grade solutions to some of the world’s largest publishers, platforms, and marketers, ensuring a safer online experience through cutting-edge detection technologies.

Project

The project focuses on developing a real-time threat detection and prevention platform for digital advertising. It involves maintaining high availability, scalability, and performance of security tools that monitor, analyze, and block fraudulent advertising behavior across complex traffic environments.

Requirements

• At least 5 years of experience as a DevOps Engineer with hands-on expertise in cloud platforms such as AWS, Azure, and/or GCP
• Proven ability to manage large-scale infrastructures, including environments scaling up to 3,000 instances per day and handling virtual machine fleets ranging from 1,000 to 10,000 VMs
• Proven track record of working on high-load enterprise projects and managing critical infrastructure needs
• Strong problem-solving skills with a focus on reducing manual processes through automation
• Solid understanding of infrastructure cost optimization techniques and security best practices
• Strong experience with Amazon Web Services
• Practical experience in scripting using Python and Bash
• Good knowledge of non-relational databases such as OpenSearch, Elasticsearch, and MongoDB
• Experience with Terraform and Docker
• Strong monitoring skills using tools such as Grafana and VictoriaMetrics
• Hands-on experience with CI/CD tools such as Bitbucket Pipelines, Jenkins, and GitLab
• Advanced networking knowledge, including firewall management, load balancers, VPC, Route 53, and Cloud DNS

Would be a plus:

• Experience with orchestration tools such as Kubernetes and IaC tools like Ansible
• Familiarity with Helm and ArgoCD for CI/CD
• Experience with Snowflake
• Experience with serverless infrastructure services such as Cloud Functions and Cloud Run
• Additional database experience with ClickHouse, PostgreSQL, MySQL, and Redis

Responsibility

• Maintain and update existing infrastructure components, while implementing new technologies and solutions
• Optimize infrastructure management to minimize manual effort and ensure cost efficiency
• Replace infrastructure components in line with evolving business requirements
• Collaborate closely with engineers to support scalability and infrastructure needs
• Proactively identify areas for improvement across the infrastructure stack from DevOps to Back-end components
• Design solutions to enhance performance and developer experience
• Monitor critical production systems and help identify root causes of issues
• Play a key role in ensuring the performance and reliability of systems serving millions of users every second

WHY US

• Diversity of Domains & Businesses
• Variety of technology
• Health & Legal support
• Active professional community
• Continuous education and growing
• Flexible schedule
• Remote work
• Outstanding offices (if you choose it)
• Sports and community activities