DomainTools is looking for a Systems Engineer that is passionate about infrastructure, automation, and growing on a dynamic engineering team. Come help us build tools and processes to accelerate the delivery of our security-focused SaaS services. We build on open source technologies and operate services in both public- and private-cloud environments to serve a customer base that includes 40% of the Fortune 100.

Location: Remote – US

Compensation: $50,000 – $68,000 USD

Job Responsibilities:

  • Build and operate Linux-based systems in both public cloud and colocation environments
  • Manage the lifecycle of open-source and custom services that power all aspects of our business, including authentication, logging, metrics, code repos, secrets management, and more
  • Accelerate our ability to deploy infrastructure safely and reliably via automation and delivery pipelines
  • Modernize legacy services by redeploying as containers or new virtual machines
  • Monitor systems and resolve operational issues with our products and services
  • Assist senior engineers with project-related tasks
  • Help the team handle unplanned work; look for ways to automate and improve related workflows
  • Improve documentation by writing and refining runbooks
  • Work with other engineering teams to resolve problems and help deliver upgrades to services and infrastructure
  • Improve and refine logging, monitoring, metrics-gathering and visualization
  • Participate in an on-call rotation with fellow team members


  • 1+ years experience managing Linux-based systems in an enterprise environment
  • Good understanding of networking fundamentals
  • Experience automating manual processes with scripts, config management tools, and CI pipelines
  • Experience supporting customer-facing services (preferably a SaaS product)
  • Experience supporting virtualization and container platforms, building VMs/containers
  • Experience managing infrastructure in both public cloud and physical data center environments
  • Willing to dive into problems that are new, ambiguous, or complex
  • Able to deal with unplanned, ticket-based work and shift between multiple tasks depending on the priority of the day
  • Eager to learn and proactively make improvements where they are most needed
  • High team standards around communication, continuous improvement, and operational excellence
  • Familiar with relational databases

Relevant Technologies:

  • Compute: CentOS/Rocky Linux, AWS (EC2, S3, Glacier), OpenStack, Nutanix, KVM
  • Big Data: Hadoop, ElasticSearch/OpenSearch, Kafka
  • Databases: MySQL/MariaDB/Galera
  • Languages: Bash, Python
  • DevOps: Ansible, Terraform, GitLab, Hashicorp Vault/Consul
  • Containers and orchestration: Docker/Podman, Kubernetes
  • Monitoring/metrics: Icinga/Nagios, Graphite, Grafana, Prometheus, CollectD, AWS cloudwatch
  • Logging: ELK, Splunk, Syslog, Journald


DomainTools is the global leader for internet intelligence and the first place security practitioners go when they need to know. The world’s most advanced security teams use our solutions to identify external risks, investigate threats, and proactively protect their organizations in a constantly evolving threat landscape. DomainTools constantly monitors the Internet and brings together the most comprehensive and trusted domain, website and DNS data to provide immediate context and machine-learning driven risk analytics delivered in near real-time.

DomainTools embraces diversity, equity, and inclusion to its fullest as an equal opportunity employer. We build our teams so creativity and innovation can flourish. We believe inclusivity and equity fosters innovation and growth; and we harness this mindset to drive a culture that serves our employees and our customers. We encourage people of all backgrounds, ages, perspectives, and skill sets to apply; and do not discriminate based on age, religion, color, national origin, gender, sexual orientation, gender identity, marital status, veteran status, disability, or any other characteristic protected by law.

DomainTools offers a comprehensive benefits package to our employees that includes fully paid medical, dental and vision insurance premiums, a 401k retirement plan with company matching, basic life insurance, flexible PTO and additional well-being benefits.