Note: The job is a remote job and is open to candidates in USA. Circle is one of the world’s leading internet financial platform companies, building the foundation of a more open, global economy through digital assets and payment applications. The Senior Software Engineer will extend Circle's in-house blockchain systems infrastructure, build scalable microservices, and collaborate with Product and Engineering teams to enhance Circle's features.
Responsibilities
- 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
Skills
- 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
- This position is eligible for day-one PERM sponsorship for qualified candidates.
Company Overview
Circle helps businesses and developers utilize stablecoins for payments and online commerce. It was founded in 2013, and is headquartered in New York, New York, USA, with a workforce of 1001-5000 employees. Its website is https://www.circle.com.Company H1B Sponsorship
Circle has a track record of offering H1B sponsorships, with 2 in 2026, 32 in 2025, 41 in 2024, 43 in 2023, 25 in 2022, 4 in 2021, 2 in 2020. Please note that this does not guarantee sponsorship for this specific role.