Senior/Staff DevOps Engineer

The role

This person will design, build, and operate AWS-based infrastructure. They will own core AWS infrastructure and drive observability and reliability improvements.

What you will do

• Design, build, and operate AWS-based infrastructure.
• Implement and maintain Infrastructure-as-Code for single-tenant and multi-tenant environments using Terraform.
• Build and maintain deployment and environment automation.
• Own and evolve CI/CD pipelines.
• Design, implement, and refine observability including metrics, logs, traces, dashboards, and alerting.
• Partner with application teams on architecture decisions, performance tuning, and operational readiness.
• Contribute to security and governance including IAM policies, network security, secrets management, and security scanning.
• Document systems, patterns, and runbooks.

Required qualifications

• Experience administering infrastructure and operating applications deployed on AWS.
• Experience using Terraform to manage single-tenant and multi-tenant systems.
• Practical experience with IP networking (VPCs, routing, subnets, proxies, DNS).
• Practical experience with network security (security groups, NACLs, firewalls).
• Practical experience with PKI management (TLS certificates, CAs, mTLS, certificate lifecycle).

Nice to have

• Experience with Ansible or another deployment automation/configuration management framework.
• Experience with GitHub Actions or another CI/CD platform (GitLab CI/CD, CircleCI, etc.).
• Experience working on reliability projects, such as setting up alert management tools and on-call practices or debugging failures in distributed systems.
• Experience setting up observability and operations programs, including collecting and representing telemetry in Grafana or instrumenting applications using OpenTelemetry.
• Experience managing PostgreSQL databases in production.
• Experience managing a pub/sub or queue technology, such as NATS, RabbitMQ, Kafka, AWS SQS, or Google Pub/Sub.
• Familiarity with secrets management (AWS SSM/Secrets Manager, Vault, or similar).
• Experience or strong interest in cybersecurity (threat modeling, hardening, secure defaults).
• Proficiency in Python or another scripting language for tooling and automation.
• Experience operating a security scanning tool, such as Trivy (or similar vulnerability/container scanners).

Benefits

• Medical, dental, and vision plan options.
• Life / AD&D, disability coverage options.
• Paid parental leave for eligible full-time employees: 12 weeks for birthing parents, 4 for non-birthing parents, 6 weeks for adoptive, foster, or intended parents through surrogacy.
• Paid holidays and flexible PTO.
• 401(k) with pre-tax and Roth options.
• HSA/FSA options.
• Dependent care FSA.

Before you apply

• Role is limited to U.S. citizens.
• Some positions may require eligibility to obtain and maintain a U.S. Government security clearance.

About the company

Founded in 2024, Twenty Technologies industrializes offensive cyber operations for the U.S. and its allies. Headquartered in Arlington, Virginia, Twenty has raised $168M from various investors.