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Seneca Holdings

Native-owned investment arm diversifying economy

Intermediate Software Developer

Full-Time
$98k - $117k
Mid
Bachelor's
Rock Island Arsenal, IL, USA
In Person
Software EngineeringFull-Stack Engineering

About the job

Requirements
  • An active Secret clearance is required.
  • DoD 8570.01-M Information Assurance Technical Level I certification is required.
  • Three years of paid experience developing full-stack web-based applications, at an equivalent complexity level and velocity, are required.
  • Technical, communication, and experience competencies sufficient to recommend design solutions and improvements that enhance software cost, schedule, and performance are required.
  • Proficiency with C# and Microsoft .NET software, including .NET Framework and .NET Core, is required.
  • Proficiency with Microsoft .NET library code and applying Microsoft and third-party .NET libraries to software solutions is required.
  • Proficiency developing web-based client software with HTML, JavaScript, CSS, and frameworks such as Bootstrap and jQuery is required.
  • Proficiency delivering SQL database scripts to create, remove, and update database objects such as tables, indexes, stored procedures, and user functions is required.
  • Attention to detail is required.
  • Written and oral communication skills are required.
Responsibilities
  • Provide full-stack software development, including back-end database script artifacts, middle-tier code that moves data from databases, applies business rules, and responds to client requests, and client software supporting user and data-consumer interactions.
  • Develop and modify moderately to highly complex web-based applications under general technical direction.
  • Design, code, test, debug, document, and maintain full-stack web applications.
  • Work within a software development life cycle, apply security and vulnerability best practices, and perform routine tasks with little or no instruction or guidance.
  • Collaborate with the DEVCOM CBC software development team, understand and implement change requests, and participate in government team meetings to improve understanding of the mission, tools, concepts, and frameworks and improve software delivery effectiveness.
  • Develop and deliver C# and Microsoft .NET software code, maintain legacy code, and refactor or rewrite code to use newer framework versions when needed.
  • Apply current Microsoft .NET and third-party .NET libraries to delivered software solutions.
  • Develop and deliver web-based client software using HTML, JavaScript, CSS, and associated frameworks such as Bootstrap and jQuery.
  • Develop and deliver SQL database scripts to create, remove, and update database objects; account for schema changes and associated data transformations; and maintain database version control so developer or build machines can update databases from their existing states to the latest version across development, test, staging, and production environments.
  • Review software code against government standards before requesting code review, including ensuring code analysis reports no errors or warnings, builds pass and execute as intended, style analysis reports no errors or warnings, all unit tests pass, and refactoring follows industry best practices and published design patterns.
  • Write applicable unit-testing code.
  • Create, update, and deliver application documentation, including narratives, diagrams, flow charts, and UML diagrams describing software design patterns and refactoring beyond code comments and inline documentation; ensure documentation is properly formatted, complete, accurate, and understandable.
  • Develop application configuration guides, user guides and documentation, and information assurance documentation as applicable.
  • Develop application documentation using government-furnished property and software, and store and work on government resources.
  • Provide on-site support for the Knowledge and Data Management Branch at Rock Island Arsenal and perform day-to-day work and contract duties.
Desired Qualifications
  • A bachelor's degree or higher in Computer Science, Information Systems, Information Technology, or a similar program is desired.

About the company

Seneca Holdings, LLC acts as the Seneca Nation's investment arm focused on non-gaming ventures to diversify the economy. It operates in federal government contracting, environmental solutions, and health services, earning revenue from contracts and services performed by its subsidiaries (SNG, Seneca Environmental, Hopewell Center) for federal agencies and commercial clients. The company differentiates itself by tribal ownership combined with a diversified, multi-sector portfolio and a nationwide/international footprint. Its goal is to achieve long-term growth and profitability that support the Seneca Nation's economic diversification and mission through non-gaming investments.

Company Size

201-500

Company Stage

N/A

Total Funding

N/A

Headquarters

Salamanca, New York

Founded

2009

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Simplify's Take

What believers are saying

  • Clear Creek Federal won a $21.9 million State Department contract on April 20, 2026.
  • Great Hill Solutions won a $3.15 million State Department security contract ending August 31, 2026.
  • Rochester Knighthawks ownership gives Seneca Holdings a visible non-gaming brand beyond procurement.

What critics are saying

  • GSA STARS III expires July 1, 2026, threatening Western Door Federal pipeline.
  • Department of State contracts were single-bid awards, exposing Seneca to recompete pressure.
  • If federal set-asides tighten, Seneca Holdings loses its core margin advantage.

What makes Seneca Holdings unique

  • Seneca Nation owns Seneca Holdings, diversifying beyond gaming since 2009.
  • Seneca Holdings combines federal contracting, environmental services, travel, and sports ownership.
  • Native ownership opens set-aside pathways competitors cannot access as readily.

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Benefits

  • Health Insurance
  • Dental Insurance
  • Vision Insurance
  • Life Insurance
  • Disability Insurance
  • Health Savings Account/Flexible Spending Account
  • Hybrid Work Options
  • Flexible Work Hours
  • 401(k) Retirement Plan
  • 401(k) Company Match
  • Professional Development Budget
  • Unlimited Paid Time Off

Company News

FingerLakes1.com
Aug 5th, 2025
Seneca Nation acquires Rochester Knighthawks, marking historic first for NLL ownership | Fingerlakes1.com

The National Lacrosse League announced a landmark moment in its history as the Seneca Nation, through its business entity Seneca Holdings, LLC, has officially acquired ownership of the Rochester Knighthawks. The move not only secures the future of professional box lacrosse in Rochester but represents a historic milestone as the first sovereign Native Nation to… MoreSeneca Nation acquires Rochester Knighthawks, marking historic first for NLL ownership