Senior .NET Engineer for FinTech Cloud-Native

Sigma Software; United States; Remote; USD 120,000 - 150,000; Full time

Job summary

Sigma Software seeks a Senior .NET Developer to design, build, and deliver features on the C#, .NET Core, and Angular stack. You will own features end-to-end, deploy to AWS, and monitor production while collaborating with cross-functional teams in an Agile setting.

You will bring 5+ years of software development experience, strong OOP and system design skills, and hands-on .NET (C#) and Angular expertise, with a focus on fintech environments and cloud-native practices.

Qualifications

• 5+ years of software development experience with strong OOP and system design.
• Hands-on with .NET (C#) and Angular.
• Knowledge of testing concepts and practices.
• Cloud-native and DevOps practices (CI/CD, automation, monitoring).
• Experience with relational and NoSQL databases.
• FinTech, payments, banking, or regulated financial environments a plus.
• Upper-Intermediate English or higher.

Responsibilities

• Design, build, and deliver features across C#, .NET Core, and Angular stack.
• Write clean, well-tested code (unit/integration/e2e).
• Own features from requirements to deployment.
• Deploy and monitor services in AWS cloud-native environments.
• Handle production issues and incidents with accountability.
• Collaborate with Product, Design, and Engineering in Agile practices.
• Contribute to continual improvement of systems and processes.

Skills

C#

.NET Core

Angular

OOP

System design

Cloud computing

DevOps (CI/CD)

Testing concepts

English

Tools

Docker

Kubernetes

Datadog

Kafka

RabbitMQ

AWS

Job description

Sigma Software seeks a Senior .NET Developer to design, build, and deliver features on the C#, .NET Core, and Angular stack. You will own features end-to-end, deploy to AWS, and monitor production while collaborating with cross-functional teams in an Agile setting.

You will bring 5+ years of software development experience, strong OOP and system design skills, and hands-on .NET (C#) and Angular expertise, with a focus on fintech environments and cloud-native practices.