Senior Software Engineer

Circle

Senior Software Engineer developing and maintaining blockchain systems infrastructure for Circle, a leading digital financial platform. Responsible for building scalable microservices and enhancing payment system integrations.

Posted 6/10/2026full-timeRemote • Arizona, California, Florida, Utah • 🇺🇸 United StatesSenior💰 $152,500 - $205,000 per yearWebsite

Tech Stack

Tools & technologies

AWSAzureCloudGoJavaMicroservicesNoSQLSQL

About the role

Key responsibilities & impact

The Senior Software Engineer is responsible for extending Circle's in-house blockchain systems infrastructure to support the tokenization of the world;
analyzing requirements, procedures, and problems to improve existing systems and modifying systems;
building and owning scalable microservices that are responsible for reliable and secure APIs that transfer value and assets across all blockchain protocols as well as traditional banking protocols;
collaborating with Product and Engineering teams to design, test, and shape Circle features, including developing and documenting system design procedures, testing procedures, and quality standards;
troubleshooting program and system malfunctions to restore normal functioning;
building publicly accessible APIs that make it simple for developers to integrate with complex payment systems;
integrating Platform Services with leading banks and financial technologies;
consulting with management to ensure agreement on system principles;
writing the infrastructure to deliver great payment experiences, including data sources (SQL or NoSQL), messaging systems and APIs;
other duties as assigned.

Requirements

What you’ll need

6 years minimum professional software development experience in object oriented languages like Java and Go
Bachelor's degree in Computer Science or a closely related field (or equivalent).
Led teams (2-4) technically on architecture and system design.
Experience working with payment systems like credit cards and bank transfers.
A broad understanding of RESTful API design and development principles.
Experience with Cloud Services (AWS, Google Cloud, Microsoft Azure, etc).
Experience with SQL databases and designing schemas.
Proven experience in the design & deployment of production-quality, scalable software.
A focus on coding standards and code quality -- a desire to have great test coverage to enable continuous delivery.
Excellent communication skills, able to collaborate with remote teams, share ideas and present concepts effectively.
Self-starter, you enjoy moving at a fast pace, shipping software that improves the user experience and constantly improving your work with little supervision.

Benefits

Comp & perks

This position is eligible for day-one PERM sponsorship for qualified candidates.
Circle is on a mission to create an inclusive financial future, with transparency at our core.

ATS Keywords

✓ Tailor your resume

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools

JavaGoRESTful API designSQLNoSQLCloud Servicesmicroservicespayment systemssystem designproduction-quality software

Soft Skills

communicationcollaborationleadershipself-starterproblem-solvingadaptabilityattention to detailteamworktime managementcritical thinking

Certifications

Bachelor's degree in Computer Science