Backend Engineer - C#/.NET, APIs & Scalable Systems

Finastra; Atlanta (GA); Hybrid; USD 110,000 - 150,000; Full time

Job summary

Finastra invites a Backend Engineer to design and implement robust backend services, APIs, and data access layers using C#/.NET. You’ll write clean, maintainable code and collaborate across teams to deliver scalable solutions.

Based in Atlanta, you’ll work with frontend, DevOps and senior engineers on end-to-end features, REST APIs, data modeling and enterprise integrations, with opportunities to explore AI-powered applications.

Qualifications

• Backend services built with C#/.NET and TypeScript/Node.js.
• REST APIs, data modeling, and server-side development.
• Experience integrating with third-party APIs and enterprise systems.
• Git/GitHub in a team setting.
• Knowledge of React/Next.js and modern web architectures.
• Interest in AI-powered or LLM-based apps.

Responsibilities

• Design and implement backend services, APIs, and data access layers.
• Develop clean, maintainable code with modern frameworks.
• Integrate backend services with databases, APIs, and enterprise systems.
• Contribute to code reviews, docs, and best practices.
• Collaborate with frontend, DevOps, and senior engineers.

Skills

C# / .NET

TypeScript / Node.js

REST APIs

Data modeling

Git / GitHub

React / Next.js

OO design

AI / LLM apps

Tools

Docker

Azure

Salesforce

CI/CD

Job description

Finastra invites a Backend Engineer to design and implement robust backend services, APIs, and data access layers using C#/.NET. You’ll write clean, maintainable code and collaborate across teams to deliver scalable solutions.

Based in Atlanta, you’ll work with frontend, DevOps and senior engineers on end-to-end features, REST APIs, data modeling and enterprise integrations, with opportunities to explore AI-powered applications.