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Capabilities

Capability statement

Essential Systems Group is a principal-led software engineering firm based in Henderson, Nevada.

Core competencies

  • Custom application development (.NET, C#, ASP.NET Core)
  • Cloud architecture and migration on Microsoft Azure
  • AI-assisted software delivery and LLM integration
  • Systems integration, APIs, and event-driven architecture
  • Payment and financial transaction systems
  • DevOps, CI/CD, and infrastructure as code
  • Legacy modernization and data migration
  • Web and mobile application development
  • Technical leadership, engineering standards, and mentoring

Differentiators

  • Principals do the work

    The engineers who scope your project are the ones who design and build it. There is no handoff to a junior bench.

  • Governed AI-assisted delivery

    Our AI practice runs on a published methodology with governance standards, agent roles, and audit-friendly attribution.

  • Production scale in regulated domains

    Experience running high-volume financial transaction platforms and enterprise systems in compliance-heavy industries.

  • Right-sized for small awards

    Built to deliver micro-purchases and small contracts well: fast starts, low overhead, and direct communication with the people doing the work.

  • Local and bilingual

    Based in Henderson, Nevada, serving the Las Vegas metro, the State of Nevada, and federal agencies; work is done in English and Spanish.

Principal experience

Highlights reflect work led or delivered by our principals in prior roles. References are available on request.

  • Financial services / healthcare benefits

    Benefits fintech transaction platform

    Core engineering on a distributed .NET and Azure microservices platform for benefit-card transactions (balance, authorization, redemption, refunds), including production operations, incident response, and framework migrations.

    60M+ successful requests per month at sub-250 ms p95 and about 99.9% success

  • Gaming and hospitality (regulated)

    Enterprise integration and engineering standards for a multi-property gaming and hospitality operator

    Led architecture and delivery of enterprise applications, an enterprise service bus integrating heterogeneous property systems, API management rollout, ETL for a legacy platform migration, and the organization's first CI/CD pipelines and development standards.

    Team of up to 7 engineers over 8 years

  • Payments

    Payments ecosystem for small and mid-sized merchants

    Hosted payment forms, merchant portals, and gift-card and accounting integrations for a payment platform with sub-2-second card-swipe-to-approval round trips.

    Tens of thousands of merchant locations

  • Local government / nonprofit

    Public-sector and nonprofit systems

    A multi-language document translation application for a large school district, and case management, donations, and residential-services applications for a regional nonprofit.

    Multi-department, multi-language

  • Software engineering practice

    Open-source AI delivery methodology

    MIT-licensed methodology and CLI for AI-assisted development with workflows, agent personas, and governance standards, used to build our own products.

Company data

Legal name
Essential Systems Group LLC
Unique Entity ID (UEI)
PLACEHOLDER — SAM.gov Unique Entity ID
CAGE code
PLACEHOLDER — CAGE code once assigned
SAM.gov registration
PLACEHOLDER — registration status and date
Primary NAICS
PLACEHOLDER — 541511 Custom Computer Programming Services
Additional NAICS
PLACEHOLDER — 541512, 541519, 518210
Business size
Small business
Set-aside / certifications
PLACEHOLDER — SBA small business; other certifications as obtained
Nevada vendor registration
PLACEHOLDER — NevadaEPro vendor ID
Location
Henderson, Nevada (Las Vegas metro)
Languages
English, Spanish
Principals
U.S. citizens, U.S. Military Veteran
Contact
support@essentialsystemsgroup.com