Join the future of commercial open source
We're building the infrastructure that powers the next generation of applications. Join us in making open source software more accessible and sustainable.
Software Engineer - Auth
team: coss.com/auth • IC1 (Junior)
Join our Auth team to build and maintain secure authentication and authorization systems that power millions of applications.
Requirements:
- 1-2 years of software development experience
- Strong understanding of web security principles
- Experience with TypeScript/JavaScript
- Familiarity with authentication protocols (OAuth, JWT)
Senior Software Engineer - Auth
team: coss.com/auth • IC3 (Senior)
Lead the development of our authentication infrastructure, ensuring security and scalability for our growing user base.
Requirements:
- 5+ years of software development experience
- Expert in authentication and authorization systems
- Strong system design and architecture skills
- Experience with security best practices
Software Engineer - Email
team: coss.com/email • IC1 (Junior)
Help build and maintain our email delivery infrastructure that ensures reliable communication for our customers.
Requirements:
- 1-2 years of software development experience
- Understanding of email protocols and delivery systems
- Experience with TypeScript/JavaScript
- Knowledge of email deliverability best practices
Senior Software Engineer - Email
team: coss.com/email • IC3 (Senior)
Lead the development of our email infrastructure, focusing on deliverability, analytics, and scalability.
Requirements:
- 5+ years of software development experience
- Expert in email infrastructure and delivery systems
- Strong experience with email service providers
- Deep understanding of email protocols and standards
Software Engineer - Notifications
team: coss.com/notifications • IC1 (Junior)
Join our Notifications team to build reliable real-time notification systems that keep users informed.
Requirements:
- 1-2 years of software development experience
- Understanding of real-time systems
- Experience with TypeScript/JavaScript
- Knowledge of WebSocket and push notifications
Senior Software Engineer - Notifications
team: coss.com/notifications • IC3 (Senior)
Lead the development of our notification infrastructure, ensuring reliable delivery across multiple channels.
Requirements:
- 5+ years of software development experience
- Expert in real-time systems and WebSocket
- Strong experience with push notification services
- Deep understanding of notification delivery patterns
Software Engineer - Payments
team: coss.com/payments • IC1 (Junior)
Help build and maintain our payment processing infrastructure that powers transactions for our customers.
Requirements:
- 1-2 years of software development experience
- Understanding of payment processing systems
- Experience with TypeScript/JavaScript
- Knowledge of financial security standards
Senior Software Engineer - Payments
team: coss.com/payments • IC3 (Senior)
Lead the development of our payment infrastructure, ensuring security, compliance, and reliability.
Requirements:
- 5+ years of software development experience
- Expert in payment processing systems
- Strong experience with payment gateways
- Deep understanding of financial security standards
Software Engineer - SMS
team: coss.com/sms • IC1 (Junior)
Join our SMS team to build reliable messaging infrastructure that connects businesses with their customers.
Requirements:
- 1-2 years of software development experience
- Understanding of SMS protocols and delivery
- Experience with TypeScript/JavaScript
- Knowledge of messaging best practices
Senior Software Engineer - SMS
team: coss.com/sms • IC3 (Senior)
Lead the development of our SMS infrastructure, focusing on reliability, scalability, and global reach.
Requirements:
- 5+ years of software development experience
- Expert in SMS infrastructure and delivery
- Strong experience with messaging service providers
- Deep understanding of telecommunications protocols