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Company profile

T-Rex Solutions, LLC Tech Stack

Federal IT contractor modernizing tax, intelligence and malware analysis systems

IT Services and IT Consulting Bethesda, Maryland 201–500 employees Founded 1999 Privately Held
trexsolutionsllc.com LinkedIn

T-Rex Solutions is a Bethesda-based federal systems integrator whose stack splits into two worlds: Java/Spring Boot, Kotlin and NiFi services for IRS-scale data pipelines, and a reverse-engineering toolkit (IDA Pro, Ghidra, Binary Ninja, WinDbg) for malware analysis. Hiring is overwhelmingly senior engineering, though velocity is decelerating, and job posts cluster around legacy modernization for tax processing and intelligence community programs.

Tech Stack 176 technologies

Core StackJava Kotlin MongoDB Spring Python Apache NiFi Kubernetes RabbitMQ C++ AWS Docker Ansible Terraform JavaScript Spring Boot IntelliJ IDEA Eclipse JMX ActiveMQ Assembly Perl IDA Pro Hex-Rays Ghidra Binary Ninja objdump GDB WinDbg OllyDbg Groovy+135 more

What T-Rex Solutions, LLC Is BuildingChallenges and projects from their job posts

◆Challenges

  • Reducing reliance on legacy tax processing technology
  • Supporting critical national security infrastructure
  • Secure data movement between disparate systems
  • Legacy data center capacity constraints
  • Improving disaster recovery readiness

▲Active Projects

  • Modernizing IRS legacy tax systems and EDOS applications
  • Intelligence community support program
  • Front end processing modernization
  • Malware analysis and enrichment services modernization
  • JITC TEC II program and TDL interface testing
  • Data transformation solutions (DTS) task order

Hiring Activity

Decelerating50 roles · 5 in 30d

Department

Engineering
39
Ops
3
Support
3
Security
2
Data
1

Seniority

Senior
22
Mid
18
Junior
7
Lead
1

Notable leadership hires: Data Center Lead

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About T-Rex Solutions, LLC

T-Rex Solutions, LLC is a privately held IT services firm headquartered in Bethesda, Maryland, founded in 1999 and employing 201–500 people. The company serves U.S. Federal government agencies, designing, integrating and operating large mission-critical systems. Its capability areas include cloud adoption, cybersecurity, AI and data solutions, agile transformation, customer experience and health IT. Active program work spans IRS tax system modernization, intelligence community support, and defense interoperability testing, with hiring concentrated in the United States.

HeadquartersBethesda, Maryland
Company Size201–500 employees
Founded1999
Hiring MarketsUnited States

Frequently Asked Questions

What tech stack does T-Rex Solutions use?

T-Rex uses Java, Kotlin, Spring Boot, Python, MongoDB, Apache NiFi, ActiveMQ, RabbitMQ, Kubernetes, Docker, Terraform, Ansible and AWS, plus reverse-engineering tools like IDA Pro, Ghidra and Binary Ninja.

What is T-Rex Solutions working on?

Job posts point to IRS legacy tax processing modernization, the IRS EDOS program, front end processing modernization, malware analysis and enrichment modernization, intelligence community support and the JITC TEC II program.

Where is T-Rex Solutions headquartered?

T-Rex Solutions is headquartered in Bethesda, Maryland, and hires in the United States. The privately held firm was founded in 1999 and has 201–500 employees.

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How this profile is built

T-Rex Solutions, LLC's technology stack, projects, and hiring signals are inferred from public hiring and company data — career pages, public listings, and company web presence — then clustered and de-duplicated. Figures are estimates that refresh over time. Read our full methodology →

This is not an official vendor or customer list. It is a technology-adoption signal inferred from public data, intended for B2B research.