All roles

Open role

[Remote] Staff Software Engineer

Remote · South Korea Full-time

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.
  • More open positions

    [Remote] Staff Software Engineer

    Work from home Full-time role

    [Remote] Staff Software Engineer

    Work from home Full-time role

    [Remote] Cloud Regional Sales Engineer

    Work from home Full-time role

    [Remote] Business Development Associate

    Work from home Full-time role

    [Remote] Member of Product, Transparency (Financial Crimes Compliance)

    Work from home Full-time role

    Senior Staff Software Engineer - Data Platform

    Work from home Full-time role

    Senior Engineering Manager

    Work from home Full-time role

    Remote Customer Service Representative – Travel & Airline Support Specialist – Flexible Work‑From‑Home Role at careerzynith

    Work from home Full-time role

    Genetic Counselor - Remote

    Work from home Full-time role

    Admin Assistant Fully Remote

    Work from home Full-time role

    [Remote] AI Engineer

    Work from home Full-time role

    Home-Based Instructional Designer Jobs in the United States

    Work from home Full-time role

    Health Insurance Agent | Healthcare Solutions Team | Handshake

    Work from home Full-time role

    Remote Data Entry Specialist – Precise Data Management for careerzynith Entertainment – $30/hr Flexible Home‑Based Role

    Work from home Full-time role

    Remote Administrative Assistant & Data Entry Clerk Opportunity at careerzynith

    Work from home Full-time role

    Experienced Customer Success Associate – Evening Shift – careerzynith

    Work from home Full-time role

    Cloud Engineer & Workflow Automation Specialist

    Work from home Full-time role

    TRC Service Technician - Heavy Duty/Truck - Remote

    Work from home Full-time role

    Developer/Programmer Analyst - Java/ J2EE & Mulesoft

    Work from home Full-time role

    Engineer Identity and Access Management

    Work from home Full-time role

    Consultor Oracle Fusion EPM (Enterprise Performance Management)

    Work from home Full-time role