Senior Full-Stack Engineer: AI-Powered Payments & Azure

AgileEngine; Irvine (CA); On-site; USD 150,000 - 190,000; Full time

Benefits offered by this job

Growth without limits

Competitive compensation

Remote work options

Meaningful, modern projects

Collaborative culture

Well-being & support

Job summary

AgileEngine in Irvine, CA seeks a Senior Full Stack Engineer to design and build production software for merchant processing, compliance automation, and AI-enabled tooling. You will develop full-stack apps with React on the front end and C#/.NET on the back end, contribute to API design, and work with Azure cloud infrastructure.

This role requires AI-assisted coding experience and senior judgment, with on-site work daily in Irvine, CA, and a background in payments or secure environments.

Qualifications

• 4+ years of senior-level production experience with C#/.NET and React.
• Experience designing and maintaining APIs, data flows, production software architecture, and automated tests.
• Production experience with Microsoft Azure services.
• Hands-on experience with AI-assisted coding tools, plus the judgment to review, test, and improve generated work.
• Must be authorized to work for ANY employer in the US.
• Ability and willingness to work on-site at the Irvine, CA office daily.

Responsibilities

• Design and build scalable features for internal merchant-processing, compliance, and operational platforms.
• Develop full-stack applications using React on the frontend and C#/.NET on the backend.
• Contribute to architecture and engineering standards while collaborating closely with leadership and other engineers.
• Apply sound practices for API design, data handling, automated testing, code review, security, and maintainability.
• Work within Microsoft Azure and contribute to delivery and operational practices in partnership with the appropriate infrastructure or DevOps owner.
• Use Anthropic Claude or comparable tools for AI-assisted coding, with senior human review of production decisions.
• Contribute to Azure-hosted LLM solutions, including existing GPT-4o mini use cases, when relevant to the product.
• Help establish pragmatic development practices as the engineering organization grows.

Skills

C#/.NET

React

APIs

AI-assisted coding tools

Senior-level production experience

English communication

Tools

Azure DevOps

Terraform

Azure services

Job description

AgileEngine in Irvine, CA seeks a Senior Full Stack Engineer to design and build production software for merchant processing, compliance automation, and AI-enabled tooling. You will develop full-stack apps with React on the front end and C#/.NET on the back end, contribute to API design, and work with Azure cloud infrastructure.

This role requires AI-assisted coding experience and senior judgment, with on-site work daily in Irvine, CA, and a background in payments or secure environments.