T

Twenty Tech Stack

Industrial-scale cyber capabilities platform for U.S. defense operations

Computer and Network Security Arlington, VA 11–50 employees Founded 2024 Privately Held

Twenty is a 11–50 person defense-tech startup founded in 2024, building operational cyber systems for U.S. and allied warfighting. The tech stack—Go, Java, Rust, C++, PostgreSQL, AWS, Terraform, NATS, and observability tools (Grafana, OpenTelemetry)—reflects a focus on high-throughput distributed systems and real-time data processing at scale. Active projects span AI-powered graph databases, event-driven pipelines, and cloud-based infrastructure, addressing core pain points around durable data lakes and performance bottlenecks. Hiring velocity is accelerating across engineering (7 roles) and security (4 roles), indicating rapid scaling of operational capability.

Tech Stack 20 technologies

Core StackGo Java Kotlin C# Python C++ Rust AWS Terraform Ansible GitHub Actions GitLab CI/CD CircleCI Grafana OpenTelemetry PostgreSQL Ashby C IAM NATS

What Twenty Is Building

◆Challenges

Complex demands of modern cyber operations
Real-time operational data processing
Complex targeting problems
Building durable high-performance data lake
Turning messy high-volume data into reliable systems
Identifying bottlenecks in storage compute query layers
Operating across cloud and on-prem environments
High-throughput backend services
Defending democracies in the digital age
Performance at scale

▲Active Projects

Operational workflows
Ai-powered graph database applications
Real-time operational data processing platform
Stable, extensible pipelines
Etl pipelines for operational data
Technical initiatives from architecture to production rollout
High-throughput backend services
Event-driven distributed systems
Stable api design
Aws-based infrastructure

Hiring Activity

Accelerating15 roles · 7 in 30d

Department

Engineering

7

Security

4

Data

1

Finance

1

HR

1

Product

1

Seniority

Senior

7

Mid

3

Staff

2

Junior

1

Manager

1

Principal

1

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About Twenty

Twenty applies software engineering rigor to cyber warfare operations for U.S. defense and intelligence use cases. The company owns the full mission pipeline—from research and development through operational deployment—and operates as a systems integrator across cloud and on-premises environments. The product surface includes real-time operational data processing, ETL pipelines for high-volume intelligence ingestion, event-driven backend services, and graph-based targeting applications. With backing from Caffeinated Capital, General Catalyst, and In-Q-Tel, Twenty is positioned as a platform vendor for the U.S. cyber operations ecosystem.

HeadquartersArlington, VA

Company Size11–50 employees

Founded2024

Hiring MarketsUnited States

Frequently Asked Questions

What tech stack does Twenty use?

Go, Java, Kotlin, C#, Python, C, C++, Rust for application development; AWS and Terraform for infrastructure; PostgreSQL for data; NATS for messaging; Grafana and OpenTelemetry for observability; GitHub Actions, GitLab CI/CD, and CircleCI for CI/CD.

What is Twenty working on?

Twenty is developing AI-powered graph database applications, real-time operational data processing platforms, ETL pipelines, event-driven distributed systems, and high-throughput backend services. Projects address complex targeting problems and durable data lakes for cyber operations.