Java backend and full-stack engineers. A bank's accounts, transfers, loans and statements run on a core system that must never lose a transaction, and the digital bank on the phone sits on top of it. Java engineers build both, mostly at Candescent, the regulatory-reporting company Regnology, the cash-machine maker NCR Atleos and the card platforms, like Pismo, CARD91 and Vegapay. They are by far the most common opening here. The postings require Spring Boot and Hibernate with PostgreSQL or Oracle, and many also require Python or Node, so a Java engineer here is often expected to work in more than one language. They are hired almost entirely with experience.

Software Engineer, Fintech. Banking software companies also hire under a plain software engineer title. Most of these roles are ordinary backend work at Candescent and the card and banking-as-a-service companies, in Java or Python with Spring Boot, Docker and the main clouds, where banking is the setting rather than the skill. A smaller part is defined by banking itself, such as implementing a bank's core system, and some of these postings require Finacle, the core banking product many Indian banks run on. Together, fintech software engineers are well above their usual weight here.

Cloud and DevOps engineers. Banking platforms now run as cloud services for many banks at once. Cloud and DevOps engineers run them, mostly at Candescent and the banking-software company FIS, in Python with Terraform, Kubernetes and Go on Google Cloud and AWS, with Dynatrace and Prometheus for watching them run. Their jobs stay open longer than most here.

Mobile engineers. The digital bank lives on the customer's phone. Mobile engineers build the banking app, almost all at Candescent, in React Native with Swift and Kotlin. They are more common here than at most product companies.

Test engineers. Testers hold less than their usual place. They automate in Java with Selenium, Playwright and Cucumber, and many postings add performance testing with JMeter, because a bank's busiest day cannot fail.

Go engineers. Pismo, the card-issuing and banking-as-a-service platform, builds its ledgers and card processing in Go on AWS, and it hires most of the Go engineers here.

GenAI engineers. GenAI is less common here than at most product companies. It appears in voice agents that talk to customers and collect what is owed, and in financial-crime software, in Python with conversational AI tools, LangGraph and the OpenAI API. Several postings also require responsible-AI and AI-governance skills, because banks must explain what a model decided. These roles take juniors more readily than most here.

Frontend and data engineers. Frontend engineers build banking and compliance screens in React and TypeScript, and data engineers build reporting and surveillance pipelines in Python and Java, some on BigQuery.

Also present. .NET engineers at the regulatory-reporting companies, like Regnology and Gresham, engineers at Verint Financial Compliance, a compliance-recording company that captures traders' calls and messages, full-stack engineers, generalist software engineers, JavaScript and Node engineers at the financial-crime start-ups, like Facctum and Flagright, and a few C/C++ and mainframe engineers.

Rare here. SAP, Salesforce and firmware work barely appear.