Java backend and full-stack engineers. The core of finance software is transactional. A purchase order becomes an invoice, a subscription becomes a bill, two ledgers are matched line by line. Java engineers build these engines, at the procurement suites, like Coupa and Procol, the subscription-billing companies, like Chargebee and Zuora, and Anaplan, the planning platform. Most of the roles are full-stack, so the postings require React, JavaScript and TypeScript as often as Java and Spring Boot, with MySQL underneath.

.NET engineers. Much of the software that reconciles accounts and closes the books was built on the Microsoft stack, and it is still being extended. .NET engineers build and maintain it, in C# with SQL, usually with React or Angular on top. They are concentrated at the reconciliation and close companies, like BlackLine and Trintech, and they are almost always hired with experience.

GenAI engineers. Finance is full of work that an AI agent can draft for a person to check. GenAI engineers build agents that run a sourcing event, read a tender or a licence agreement, explain why a reconciliation does not match, prepare a tax return or draft a board pack. The postings require Python with LangChain, MCP and the model services of AWS, and many require React for the screen around the agent. They are more common here than at most product companies.

Test engineers. In software that moves money and closes books, a wrong number is a serious failure, and testing has a firm place. Testers automate checks in Playwright, Selenium and Cypress with Java, and some postings add performance testing with JMeter, because month-end loads are heavy.

Cloud and DevOps engineers. Planning, billing and close platforms run as cloud services shared by many customers. Cloud and DevOps engineers run them, in Python, Java and Go on AWS and Kubernetes, and most of them work at Anaplan.

Full-stack engineers. A distinctive group works across a React front end and whatever back end the product uses, including Ruby on Rails at Coupa, the largest procurement suite. They are far more common here than at most product companies, and they take juniors readily.

ERP and finance-application developers. Some roles build and extend packaged finance products and connect them to a company's ERP. They are more common here than elsewhere in the product industry, and a small group of SAP specialists builds the extensions that sit on top of an SAP ledger.

Smaller groups. Frontend engineers build dashboards and tax screens, Python engineers work on software and subscription spend management, data engineers build planning and spend analytics, and mobile engineers appear at Anaplan.

Rare here. C/C++ systems engineering, firmware and Software Engineer, Security roles barely appear.