Note: The job is a remote job and is open to candidates in USA. Circle is a financial technology company focused on the emerging internet of money, enabling global and efficient value transfers. The Staff Software Engineer will extend Circle's blockchain systems infrastructure, build scalable microservices, and collaborate with product and engineering teams to enhance payment systems.
Responsibilities
- 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
- 7 years minimum professional software development experience in object oriented languages like Go or Java
- Computer Science degree or a closely related field (or foreign equivalent)
- Technical leadership of teams >4 on architecture and system design
- Expert in one of the domains of API design, payments processing, or blockchains
- Deep understanding/experience with Architecture, design, and deployment of production-quality, scalable software
- Deep understanding/experience with Web3, blockchain, smart Contract business logic
- Deep understanding/experience with RESTful API design and development principles
- Deep understanding/experience with Cloud services (AWS, Google Cloud, Microsoft Azure, etc)
- Deep understanding/experience with Container orchestration systems like Kubernetes or EKS, ECS
- Deep understanding/experience with SQL databases and designing schemas
- Deep 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 with a curious mindset, you enjoy moving at a fast pace, shipping software that improves the user experience and constantly improving your work with little supervision
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.