Senior Backend Engineer (Golang) - Large-Scale B2C Platform (Remote)

5+ years of professional backend engineering experience building, shipping, and operating production systems. Proven experience working on large-scale B2C applications (high traffic, high availability, performance-sensitive systems). Golang as a primary language in recent roles, with demonstrated ownership of production services. Strong system design skills with a focus on latency, scalability, reliability, and maintainability. Experience building and supporting data-intensive systems. Hands-on experience with Kubernetes, Kafka, PostgreSQL, Redis, and Grafana. Strong engineering fundamentals: testing practices, clean code, SOLID principles, and common design patterns. Comfortable collaborating cross-functionally with Product and Design.

Design and evolve backend systems with emphasis on low latency, scalability, and operational robustness. Build and maintain services primarily in Golang, contributing to Python to Go migrations. Work within a distributed system stack including Kubernetes, Kafka, PostgreSQL, Redis, and observability tooling. Apply strong testing practices, clean architecture principles, SOLID, and proven design patterns. Partner with Product, Design, and Engineering counterparts to deliver features. Provide technical insight in reviews and team meetings; help scope, estimate, and prioritize work. Identify bottlenecks early, address technical debt, and improve system performance and developer experience.