Senior Software Engineer, Metering & Billing

About the role:

On the Konnect Metering & Billing team at Kong, you’ll design, build, and maintain the backend services behind two products: usage metering and billing, and AI Cost Management (Tokenomics), which gives customers visibility and control over what their AI usage costs. As a Backend Engineer, you’ll work closely with Engineering and Product to build scalable services and APIs that process millions of events per second and have a direct, measurable impact on our customers.

What you’ll do:

• Design, implement, and maintain microservices and APIs for usage metering, billing, invoicing, and analytics at scale.
• Build AI Cost Management capabilities that help customers track, attribute, and control LLM token usage and spend, including cost attribution, budgets, and usage limits.
• Architect backend systems that process millions of events per second in real time.
• Work with Product and Engineering to define system requirements and ship high-quality, customer-focused solutions.
• Optimize database performance and ensure data integrity, reliability, and security across distributed systems.
• Integrate with third-party services (e.g., Stripe, CRMs) to support billing and reporting needs.
• Support production services through monitoring, troubleshooting, and on-call rotation to keep them highly available.
• Apply best practices for DevOps, CI/CD, and cloud-native development.
• Write automated tests to validate system behavior and prevent regressions.
• And any additional tasks required by your manager.

What you’ll bring:

• Experience with Go, Node.js.
• Contributions to open source projects.
• Familiarity with cloud-native technologies (e.g., Kubernetes, Docker).
• Exposure to big data systems (e.g., ClickHouse), streaming platforms (e.g., Kafka), and event-driven architectures.
• 5+ years of professional software development experience.
• Proven experience building scalable backend services.
• Demonstrated ability to deliver and maintain production systems at scale.
• Solid understanding of distributed systems, APIs, and database optimization.
• Excellent verbal and written communication skills.

Bonus points:

• Familiarity with LLM APIs, token-based pricing, or AI gateway and observability tooling.
• Experience working on developer-focused products.
• Experience working on developer-focused products.

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