Staff .NET Engineer — Scalable APIs & Microservices

Socket.dev; Birmingham (AL); On-site; USD 120,000 - 180,000; Full time

Job summary

StoneX Group is hiring a Staff Software Engineer to join the API & Middleware Group. You will design and operate high-performance, low-latency services and distributed systems that power integration across the organization.

Work with engineers, tech leads, QA, and stakeholders; use C# / .NET Core, Kafka, Azure, Kubernetes, and various tooling. Four days in office per week to collaborate effectively.

Qualifications

• 3+ years of distributed systems development using C#/ .NET.
• Experience with ASP.NET Core and microservices.
• Experience with event-driven architectures and Kafka or similar messaging systems.
• Strong knowledge of distributed systems concepts, concurrency, and performance tuning.
• Relational databases (SQL Server) with NoSQL exposure a plus.
• Experience in cloud environments (Azure) and containerized deployments.

Responsibilities

• Contribute across all phases of the software development lifecycle within an Agile team.
• Write well‑designed, testable, and efficient code following engineering best practices.
• Troubleshoot production issues and optimize performance under load.
• Participate in code reviews and collaborate with cross-team partners.
• Align with team leads and stakeholders to deliver platform capabilities.

Skills

Distributed systems

C#

.NET

ASP.NET Core

Kafka

Cloud architectures

Team collaboration

Education

Bachelor’s degree in Computer Science / Software Engineering

Tools

Azure

Kubernetes

Docker

Rancher

TeamCity

Octopus

Grafana

GitHub

Visual Studio

VS Code

Rider

ReSharper

Microsoft SQL Server

PostgreSQL

NoSQL databases

Job description

StoneX Group is hiring a Staff Software Engineer to join the API & Middleware Group. You will design and operate high-performance, low-latency services and distributed systems that power integration across the organization.

Work with engineers, tech leads, QA, and stakeholders; use C# / .NET Core, Kafka, Azure, Kubernetes, and various tooling. Four days in office per week to collaborate effectively.