Coinflow · 1 day ago
Sr. Software Engineer
Chicago, IL
Full-time
Onsite
Senior Level
5+ years expCoinflow is a next-generation payments company headquartered in Chicago, pioneering the way money moves globally. The Senior Software Engineer will help build the core infrastructure for global payments, designing and implementing systems that process billions of dollars in transactions while collaborating closely with Product and other engineers.
CryptocurrencyFinancePaymentsWeb3
Responsibilities
Build Core Payment Infrastructure Design and implement payment processing systems that handle high throughput and strict reliability requirements
Build APIs and SDKs that merchants use to integrate Coinflow into their platforms
Develop fraud detection and risk management features using real-time data analysis
Scale Our Platform Architect systems for performance, reliability, and observability at scale
Optimize database queries, caching strategies, and service communication patterns
Instrument services for monitoring, alerting, and debugging production issues
Ship Product Features Work end-to-end on features from technical design through deployment and iteration
Collaborate with Product and Design to translate requirements into elegant technical solutions
Balance speed of delivery with code quality and long-term maintainability
Improve How We Work Contribute to technical decisions around architecture, tooling, and best practices
Mentor other engineers through code review, pairing, and knowledge sharing
Help shape engineering culture as the team grows
Qualification
Required
5+ years of professional software engineering experience
Strong proficiency in TypeScript and Node.js; experience with React is a plus
Deep understanding of REST API design, relational and document databases (especially MongoDB), and distributed systems concepts
Experience building systems that handle high transaction volumes or strict correctness requirements
Comfortable with cloud infrastructure (AWS, GCP, or similar) and containerized deployments
Track record of shipping and maintaining production systems
Clear communicator who can discuss technical tradeoffs with engineers and non-engineers alike
Preferred
Experience in payments, fintech, or blockchain/crypto
Company
Coinflow
Coinflow (fka Coinflow Labs) is the next-generation payment service provider revolutionizing global financial infrastructure with stablecoins, AI-driven fraud prevention, and instant settlement.
11-50 employees
H1B Sponsorship
Coinflow has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (2)
Funding
Current Stage
Early StageTotal Funding
$28.7MKey Investors
Pantera CapitalCMT Digital
2025-10-07Series A· $25M
2024-05-28Seed· $2.25M
2023-04-19Pre Seed· $1.45M
Leadership Team
Benjamin Meeder
Chief Technology Officer
Recent News
Tech Startups - Startups and Technology news
2025-10-11
Venture Capital Firms
2025-10-09
Company data provided by crunchbase