NMI Tech Stack

Modular payment gateway processing $502B annually for SaaS platforms and PayFacs

Financial Services Schaumburg, Illinois 201–500 employees Privately Held

NMI operates a white-label payment platform serving over 6,000 technology partners across SaaS, ISOs, PayFacs, and banks. The tech stack—C#, .NET, Java, Python, SQL Server, Oracle, GCP, BigQuery—reflects a mature, polyglot backend built for scale; active projects around CI/CD, monitoring, billing systems, and GCP infrastructure maturity signal ongoing investment in operational reliability at transaction volume. Pain points center on merchant throughput, PCI compliance, and SDK performance, with near-term focus on partner onboarding and internal process automation.

Tech Stack 50 technologies

Core StackSalesforce ZoomInfo C# PHP .NET Java Kotlin Swift Terraform BigQuery Jira Zendesk Python NetSuite MySQL SQL Server Oracle LinkedIn Sales Navigator Objective-C GCP Bigtable Excel SQL Ironclad Microsoft Office Microsoft 365 Google Workspace Android iOS Cloud Composer+18 more

What NMI Is Building

◆Challenges

Handling growing merchant transaction volumes
High availability and scalability of gcp infrastructure
Accelerating adoption of payment solutions
Manual repetitive work
Ensuring pci dss compliance
Processing billions of transactions
Pricing strategy
Performance issues across sdks and backend services
Mitigating portfolio risk
Minimizing merchant card losses

▲Active Projects

Ci/cd pipeline improvements
Monitoring and alerting systems
Ai data initiatives
Core billing and invoicing systems
Mdf management & performance optimization
Partner onboarding
Building out internal training programs
Annual budgeting process
Customer intelligence capabilities
Ai-backed revenue forecasting

Hiring Activity

Steady45 roles · 15 in 30d

Department

Engineering

Sales

Marketing

Finance

Support

Ops

Product

Data

Seniority

Senior

Junior

Manager

Mid

Staff

Director

Intern

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About NMI

NMI is a payment gateway and platform company headquartered in Schaumburg, Illinois, serving mid-market and enterprise software vendors who embed payments into their products. The platform processes over $502 billion in annual transaction volume and reaches more than 6,000 technology partners through a modular, white-label architecture that supports online, in-app, mobile, in-store, and unattended payment environments. The company handles the full stack—from card processing and compliance (PCI DSS certified) to underwriting, risk monitoring, and merchant support—allowing partners to focus on their core business. With 201–500 employees and steady hiring across engineering, sales, and product, NMI operates at the infrastructure layer of the fintech ecosystem.

HeadquartersSchaumburg, Illinois

Company Size201–500 employees

Hiring MarketsUnited States, South Africa

Frequently Asked Questions

What payment technologies does NMI support?

NMI supports contact and contactless EMV, chip and PIN, chip and signature, mPOS, and mobile payments. The platform processes transactions across online, in-app, in-store, mobile, and unattended environments.

What is NMI's annual transaction volume?

NMI processes over $502 billion in payments annually across its customer base of more than 6,000 technology partners.

Where does NMI hire engineers?

NMI is actively hiring in the United States and South Africa. Current open roles span engineering, sales, marketing, product, and support functions.