Senior Software Engineer – Billy Team

Cast AI specializes in automation combined with Kubernetes expertise to drive efficiency. The Billy Team focuses on building critical foundations for day-2 operations, including billing, audit trails, notifications, and internal feature flags to ensure platform reliability and scalability.

• Strong software engineering skills with experience in distributed systems and backend development in GoLang.
• Strong debugging, optimization, and performance-tuning skills.
• Experience with feature flag systems like Flagd or LaunchDarkly is advantageous but not required.
• Experience integrating platforms with payment providers such as Stripe or AWS/GCP/Azure SaaS marketplaces is advantageous but not required.
• Strong English skills, both verbal and written.
• Must be physically located in any European country within GMT +0 to GMT +3.
• Ability to work independently and collaboratively within a team.
• Proactive, problem-solving mindset with a “yes, we can” attitude.

Core features:

• Billing Systems: managing cloud SaaS marketplace integrations, platform usage tracking, and internal invoicing.
• Internal Feature Flags: enabling engineering teams to innovate and ship features safely.
• Notification Systems: providing real-time visibility into critical events in Kubernetes clusters and the platform.
• Audit Systems: building end-to-end auditing from Kubernetes cluster activity to user trails.
• Admin API: supporting customer support and internal teams for efficient operations.

• Competitive salary (€6,500 – €9,000 gross, depending on experience).
• Flexible, remote-first global environment.
• Collaboration with a global team of cloud experts and Kubernetes innovators.
• Equity options.
• Fast-paced workflow with quick feedback; feature projects typically completed in 1 to 4 weeks.
• 10% of work time allocated to personal projects or self-improvement.
• Learning budget for professional and personal development, including international conferences and courses.
• Annual hackathon.
• Team-building budget and company events.
• Equipment budget.
• Extra days off to support work-life balance.

Must be physically located in any European country within GMT +0 to GMT +3 time zones.