About the opportunity

Our client builds secure, scalable payments and banking products on the cloud. They are hiring a Senior Software Engineer to work across the stack, from event-driven .NET services and AI-powered features to modern React front ends. AI coding tools are a core part of how the team delivers, and you will help shape how they are used safely in money and security paths.

What you'll do

Own features end to end, from design and development through testing, release and production support
Build distributed, event-driven back-end services and integrations with banking and third-party systems
Build AI-powered features, including agents, multi-step workflows and RAG applications
Deploy and run containerized services on Kubernetes
Build CI/CD pipelines and infrastructure as code
Use AI coding tools to deliver faster while keeping quality and security high
Review code, mentor other engineers and help grow the team

What you'll bring

7+ years of professional software engineering, delivering and supporting production systems
Strong hands-on C# / .NET (ASP.NET Core) and React with TypeScript
Experience in payments or banking technology, such as core banking APIs, payment rails, ledgers or reconciliation
Expertise building distributed, event-driven applications
Working proficiency in at least one other back-end language: Java, Python or Node.js
Cloud-native microservices on Azure (preferred), AWS or Google Cloud Platform, using Docker, Kubernetes, Helm and Terraform
Secure, observable applications with CI/CD, log aggregation, monitoring and alerting
Agile delivery and Test-Driven Development
Daily use of AI coding assistants and agents (Claude Code, GitHub Copilot, Cursor), with the judgment to review and harden AI-generated code
AI application development: LLM APIs (prompt engineering, structured outputs, tool calling), agents and multi-step workflows, RAG (embeddings, vector search), and evaluating AI quality, cost and safety

Nice to have

Microservices design with Domain-Driven Design
Target-state architecture for greenfield products and legacy modernization
Designing for scalability, resilience and high availability
ISO 20022, ACH/NACHA, wires, or core banking vendors (CSI, Fiserv, FIS, Jack Henry)
Regulated environments (SOC 2, audit and security controls)
Serverless development
Azure, AWS or Google Cloud Platform developer, architect or AI certification

How to apply

Please submit your resume as a PDF file. Applications with resumes in other formats may not be considered.