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Cass Information Systems Tech Stack

Invoice-to-payment optimization and expense management for enterprises

Information Services St. Louis, MO 1,001–5,000 employees Founded 1906 Public Company

Cass Information Systems processes over $90 billion in annual disbursements for mid-market and enterprise clients across transportation, facilities, and utility spend. The tech stack is enterprise-standard (C#, ASP.NET, SQL Server, Azure, Salesforce) with steady engineering hiring focused on contract management, RFP automation, and deployment of proprietary solutions—suggesting operational maturity in a complex, regulated domain. Pain points center on contract system maintenance and RFP streamlining, which align directly with active projects in statement-of-work creation and abstract automation.

Tech Stack 27 technologies

Core StackC# ASP.NET JavaScript Angular TypeScript Visual Studio SQL Server Windows Server AWS Salesforce Word Excel PowerPoint Microsoft Office Visio HTML CSS Azure DevOps Server Git Windows SQL Microsoft Project Azure GCP Outreach EDI Outlook

What Cass Information Systems Is Building

◆Challenges

Maintaining contract management system
Streamlining rfp responses
Balancing interests of parties
P&l management
Managing large multi-vendor projects
Minimizing operational risk
Maintaining appropriate staffing levels
Ensuring compliance with employment laws
Cost effectiveness and infrastructure flexibility
Improving service to clients

▲Active Projects

Statement of work creation
Database of standard rfp responses
Contract abstract creation
Cass tis solutions deployment
Growth strategy implementation
Operational infrastructure development
Marketing website maintenance
Carrier retention program
Carrier onboarding program
Amplify by cass contracting process

Hiring Activity

Steady20 roles · 8 in 30d

Department

Engineering

7

Finance

4

Ops

4

Legal

2

Sales

2

HR

1

Support

1

Seniority

Junior

5

Senior

5

Mid

4

Lead

2

Manager

2

Principal

2

VP

1

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About Cass Information Systems

Cass Information Systems is a public company (Nasdaq: CASS, Russell 2000 Index) headquartered in St. Louis with over 1,000 employees. Founded in 1906, the company specializes in spend management across high-complexity categories: freight audit and payment, parcel and transportation expense, utility invoice processing, and facilities management. A wholly owned subsidiary bank (Cass Commercial Bank) underpins secure, scalable financial operations. The core value proposition is reducing client complexity through intelligent automation, precise auditing, and cost visibility across recurring operational expenses.

HeadquartersSt. Louis, MO

Company Size1,001–5,000 employees

Founded1906

Hiring MarketsUnited States

Frequently Asked Questions

What does Cass Information Systems do?

Cass optimizes enterprise spending on recurring expenses from invoice through payment. Services cover freight audit, transportation, utility, and facilities expense management. The company processes over $90 billion in annual disbursements and offers visibility, control, and measurable cost savings through automation and auditing.

What tech stack does Cass Information Systems use?

Cass runs on C#, ASP.NET, SQL Server, and Windows Server for core systems, with Azure and AWS cloud infrastructure. Frontend is Angular and TypeScript. Enterprise tools include Salesforce, Azure DevOps, Git, and EDI for vendor integration.