
Backend Engineer - Known

Backend Engineer - Known
Pear
The Backend Engineer role at Known involves building and optimizing backend systems and infrastructure to support high-traffic applications. The engineer will work closely with the founding team to design scalable services, implement real-time communication, and manage third-party integrations, all while ensuring system reliability and performance. This position requires a strong technical foundation and offers high ownership in shaping the company's growth.
Qualification
- 4–6 years building production backend systems, ideally in consumer products or high-traffic applications.
- Strong proficiency in TypeScript and Node.js with a deep understanding of async patterns and performance optimization.
- Expert-level knowledge of Postgres, including complex queries and performance tuning.
- Experience designing and scaling RESTful APIs with attention to rate limiting and authentication.
- Hands-on experience with cloud platforms (AWS, GCP) including compute and storage services.
- Familiarity with containerization and orchestration (Docker, Kubernetes).
- Experience with WebSockets and WebRTC for real-time communication systems.
- Strong understanding of observability and monitoring.
Responsibility
- Design and build scalable backend services in Node.js/TypeScript, including RESTful APIs and data pipelines.
- Architect and optimize database systems using Postgres, focusing on schema design and query optimization.
- Implement real-time communication infrastructure using WebSockets and WebRTC.
- Integrate and manage third-party services with robust error handling and monitoring.
- Collaborate with AI/ML engineers to build APIs and data pipelines for model predictions.
- Own infrastructure, deployment, and observability, including CI/CD pipelines and monitoring.
- Design for performance and scale, implementing caching strategies and optimizing API response times.



