[Remote] Senior Software Engineer (Weekend)

Note: The job is a remote job and is open to candidates in USA. Onyx Odds is building a consumer trading platform for prediction markets, sports, crypto, and real-world events. The Senior Software Engineer will develop and maintain customer-facing full-stack features, real-time experiences, and platform reliability across the Thursday–Monday schedule, while monitoring production systems and collaborating with cross-functional teams.

Responsibilities

• Build and ship customer-facing features across the frontend and backend
• Develop scalable applications using TypeScript, React, Node.js, and PostgreSQL
• Own projects from technical design through development, deployment, and monitoring
• Build real-time experiences powered by live data and streaming updates
• Integrate frontend applications with backend APIs and AWS-based services
• Monitor platform performance and respond to production issues during high-volume periods
• Improve application reliability, scalability, testing, and observability
• Collaborate with Product, Design, Trading Operations, and Engineering
• Contribute to technical decisions, code reviews, and engineering best practices
• Help create a smooth handoff between the weekend and weekday engineering teams

Skills

• 2+ years of professional full-stack software engineering experience
• Strong experience with TypeScript, React, Node.js, and SQL
• Experience building and maintaining production applications
• Solid understanding of APIs, databases, frontend architecture, and cloud infrastructure
• Experience with AWS , CI/CD workflows, testing, debugging, and monitoring
• Comfortable troubleshooting production issues and working across the stack
• Strong product intuition and attention to customer experience
• Able to work independently and take ownership in a fast-moving startup
• Available to work a consistent Thursday–Monday schedule
• This is a full-time remote position. Candidates must be authorized to work in the United States; we are unable to provide employment sponsorship at this time
• Experience with WebSockets, real-time data, fintech, trading, sports, gaming, crypto, or other high-volume consumer products is a plus

Benefits

• Meaningful equity
• Remote position with a consistent Thursday–Monday schedule
• Opportunity to join a fast-growing company at an early stage
• High ownership over meaningful, customer-facing work
• Work alongside a team with experience from Jane Street, DraftKings, Robinhood, xAI, and Harvard

Company Overview