Senior Software Engineer - Web App & DevEx

We’re looking for a Senior Software Engineer to help build and evolve the systems and APIs that power Runware’s Web App and Developer Experience (DevEx). You’ll take ownership of backend work, build and maintain APIs, and work with Product, Design and engineering teams.

• Build and maintain internal and developer-facing APIs and services
• Develop and evolve public API functionality, including task types, validation, routing and WebSocket/REST behaviour
• Own and maintain the Admin API and panel as an internal platform
• Work with usage, billing and customer data to ensure accuracy and reliability, including Stripe
• Investigate and resolve production issues and security vulnerabilities
• Write, test and review clean, maintainable code
• Work with Product, Design and engineering teams
• Contribute to technical decisions, work across frontend and backend boundaries where appropriate

• Strong experience building backend systems and APIs
• Strong programming experience in one or more backend languages
• Experience building reliable, maintainable and well-tested production systems
• Good understanding of API design, asynchronous workloads and distributed systems concepts
• Strong engineering fundamentals around security, reliability and performance
• Strong communication and collaboration skills
• Strong ownership and autonomy
• Comfortable using AI-assisted development tools and agents to improve productivity

• Remote-first collective, meeting in person twice a year
• Flexible hours, own your schedule outside core collaboration blocks
• Generous paid time off – vacation, sick days, public holidays
• Meaningful stock options – share in the upside you create
• Family leave – paid maternity, paternity, and caregiver time
• Company retreats – twice-yearly gatherings in inspiring locations