Senior SDE - Platform
Core
Design, build, and scale backend systems and frontend interfaces for the Threads & Composer experience in HighLevel Conversations, handling billions of messages monthly.
Role type
Senior Full Stack Engineer (Platform)
Builds
Platform components including Workflows, queueing pipelines, storage access layers, caching strategies, rate limiters, and schedulers for multi-channel communication.
Domain
SaaS / Business Operating System / High-scale distributed systems
Required skills
Node.js, Go, Kubernetes, GCP (GKE, Pub/Sub, Cloud Tasks), MongoDB, Firestore, Redis, ClickHouse, ElasticSearch, distributed systems design, sharding, replication, capacity planning, incident debugging, design documentation
Preferred skills
Experience with systems at comparable scale (billions of events), platform engineering background
Technologies
Node.js, TypeScript, Go, GKE, Pub/Sub, Cloud Tasks, Redis, MongoDB, Firestore, ClickHouse, ElasticSearch
Responsibilities
Design and build platform components for Workflows and Conversations; own components end-to-end including architecture, code, tests, and production health; manage data stores at scale with schema design and migrations; work closely with infrastructure for autoscaling and resource tuning; identify and fix system gaps like idempotency and cache stampedes; debug cross-layer incidents; write clear design docs and RCAs.
Seniority
Senior, hands-on IC
