Senior .NET Engineer - Payments APIs

Early Warning Services LLC; San Francisco (CA); Hybrid; USD 118,000 - 152,000; Full time

Benefits offered by this job

Health insurance

401(k) Retirement Plan

Paid Time Off

Paid Parental Leave

Maven Family Planning

Job summary

Early Warning Services LLC is seeking a Sr. Software Engineer to design, develop, test, and maintain software applications on the .NET stack. You will work across the full software lifecycle, collaborating with product partners to translate requirements into scalable solutions.

Responsibilities include API development, code reviews, automated testing, and production support. The role emphasizes reliability, security, and continuous improvement within a hybrid model across multiple cities.

Qualifications

• Bachelor’s degree in Computer Science or related field or equivalent experience.
• 5+ years of software development experience with C# and .NET framework.
• Experience designing, developing, and integrating RESTful APIs and web services.
• Working knowledge of SQL and relational databases.
• Experience using Git and collaborative development practices.
• Experience with automated unit/integration tests and CI/CD.

Responsibilities

• Design, develop, document, test, deploy, and maintain .NET applications and services.
• Lead API and service development, ensuring scalability and reliability.
• Translate requirements into technical designs and specifications.
• Develop automated tests and participate in code reviews.
• Troubleshoot defects and production issues, identifying root causes.
• Collaborate with engineers and product teams to refine requirements.

Skills

C#

.NET

REST APIs

SQL

Git

Agile/Lean

OO Design

Multithreading

Unit Testing

Code Reviews

Education

Bachelor's degree in Computer Science

Tools

AWS

Docker

Kubernetes

ASP.NET Core

Job description

Early Warning Services LLC is seeking a Sr. Software Engineer to design, develop, test, and maintain software applications on the .NET stack. You will work across the full software lifecycle, collaborating with product partners to translate requirements into scalable solutions.

Responsibilities include API development, code reviews, automated testing, and production support. The role emphasizes reliability, security, and continuous improvement within a hybrid model across multiple cities.