DevOps Engineer - Fully Remote

America is under sustained cyber attack. Our adversaries infiltrate our networks, steal our IP, and degrade the digital infrastructure that modern life runs on. Founded in 2024, Twenty Technologies () industrializes offensive cyber operations for the U.Headquartered in Arlington, Virginia, Twenty has raised $138M from Accel, Caffeinated Capital, Friends & Family Capital, Point72 Ventures, General Catalyst, and In-Q-Tel. We are seeking a DevOps Engineer / Software Engineer – Infrastructure for an in-office position in our Arlington, VA office focused on infrastructure and reliability to help design, build, and operate our application platform. This position is at the crossroads of software engineering, operations, and security. You will own core AWS infrastructure, drive observability and reliability improvements, and collaborate closely with product and backend teams. Common backgrounds for this role include DevOps Engineer, SRE, Platform Engineer, or Backend Engineer (Infrastructure). Design, build, and operate AWS-based infrastructure. Build and maintain deployment and environment automation (Ansible or similar). Own and evolve CI/CD pipelines. Partner with application teams on architecture decisions, performance tuning, and operational readiness. IAM policies, network security, secrets management, and security scanning. Document systems, patterns, and runbooks so others can operate and extend the platform reliably. Experience administering infrastructure and operating applications deployed on AWS. IP networking (VPCs, routing, subnets, proxies, DNS). Network security (security groups, NACLs, firewalls). 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: Experience setting up observability and operations programs, including: Instrumenting applications using OpenTelemetry or other log/metric/trace aggregation frameworks. Experience managing PostgreSQL databases in production (backups, migrations, performance, monitoring). 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). Experience or interest working with large datasets (performance, storage trade-offs, retention policies). Experience managing graph databases, such as Neo4j, AWS Neptune, or similar. Experience designing or contributing to runbooks and internal platform documentation for non-infrastructure teams. Medical, dental, and vision plan options. Life / AD&D, disability coverage options. Paid parental leave for eligible full-time employees. Paid holidays and flexible PTO. Retirement. 401(k) with pre-tax and Roth options. At the office. On-site garage parking. Bike storage. Building fitness center. Government security clearance. We consider all qualified applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, veteran status, disability, or any other protected status.