E

Expression Tech Stack

Federal software and data analytics for cyber defense and spectrum management

Information Technology & Services Washington, District of Columbia 51–200 employees Founded 1997 Privately Held

Expression is a 51–200 person federal contractor built around software engineering, data science, and cybersecurity. The tech stack—SIEM, NIST frameworks, Python/FastAPI, LangChain, and agentic AI tools—maps to their active projects in SOC playbooks, cyber detection content, and LLM services. Hiring is accelerating across all functions (data, engineering, product, sales, security) at senior and mid levels, signaling expansion into AI-driven defense platforms and mission-critical infrastructure.

Tech Stack 19 technologies

Core StackAWS PostgreSQL Elasticsearch MongoDB Tableau Power BI Superset Python LangChain FastAPI Docker SIEM NIST Cybersecurity Framework Azure SQL LangGraph Crew AI asyncio Pydantic

What Expression Is Building

◆Challenges

High-volume or critical events
Resilience of critical federal networks
Capturing high-value opportunities
Meeting federal compliance requirements
Delivering secure compliant solutions

▲Active Projects

Soc playbook development
Mature cyber defense strategies
Create new detection content
Vor data platform
Research prototypes for new data and analytics technologies
Agentic ai platform
Llm-based services
Python api development
Mission-critical enterprise it programs

Hiring Activity

Accelerating5 roles · 5 in 30d

Department

Data

1

Engineering

1

Product

1

Sales

1

Security

1

Seniority

Senior

3

Mid

2

Company intelligence

Find more companies like Expression by tech stack, pain points and active projects

Get started free

About Expression

Expression provides tailored information technology, software engineering, and data analytics solutions for federal and commercial government clients. The company operates across three domains: cybersecurity (SOC automation, detection playbooks, NIST-aligned defense strategies), data platforms (VOR platform, analytics pipelines via Elasticsearch, PostgreSQL, Tableau), and emerging agentic AI services. Founded in 1997 and based in Washington, DC, the company addresses compliance, resilience, and high-volume event handling for critical networks and federal programs.

HeadquartersWashington, District of Columbia

Company Size51–200 employees

Founded1997

Hiring MarketsUnited States

Frequently Asked Questions

What technology does Expression use for cybersecurity?

Expression deploys SIEM platforms, NIST Cybersecurity Framework tooling, and Python-based detection automation via FastAPI and LangChain to support SOC playbook development and cyber defense operations.

What data stack does Expression use?

Expression uses PostgreSQL, MongoDB, Elasticsearch, and visualization tools (Tableau, Power BI, Superset) for analytics pipelines, including the VOR data platform serving federal mission-critical programs.