Improve performance and reduce latency:
Come up with architectural planning for implementing new features around custom objects
Diagnose and remove bottlenecks in backend services, APIs, and message flows
Profile Node.js services (CPU, heap, event loop) and rewrite hot paths for efficiency
Strengthen platform reliability:
Improve resilience via batching, caching, pooling, concurrency controls, and backpressure
Harden services against cascading failures and dependency slowness
Establish rate-limiting, queueing, and circuit-breaker patterns that scale under load
Optimize database queries, indexing strategies, denormalization, and read/write paths
Collaborate on infrastructure & operations:
Work with SRE and Infra teams on autoscaling, capacity planning, quotas, and workload efficiency
Contribute to runtime configuration improvements (GKE, Node.js, Redis, Pub/Sub, Firestore, ClickHouse)
Participate in performance incident reviews and drive actionable root-cause fixes
Build long-lasting performance frameworks:
Define best practices for high-performance microservices, distributed patterns, and observability
Create reusable performance tooling, dashboards, and profiling workflows
Mentor engineers on writing scalable code, interpreting metrics, and designing reliable services

7+ years of backend engineering experience focused on large-scale systems.
Strong experience with Node.js internals (event loop, memory model, async behavior)
Proficiency in diagnosing performance issues using CPU/heap profilers, tracing, and metrics
Solid understanding of Microservices, Distributed systems, High-throughput APIs, Caching strategies, Queuing/Backpressure patterns & Rate limiting/load balancing
Experience with MongoDB, Postgres/MySQL, Firestore, Redis, ClickHouse, or similar DBs
Familiarity with Kubernetes, GCP/AWS, and observability tooling (Grafana, Prometheus, OpenTelemetry)
Possess strong communication skills & are able to explain bottlenecks clearly without finger-pointing
A mindset that treats every millisecond, query, and allocation as something to optimize thoughtfully.

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Lead Engineer – Platform Performance, Reliability

Key skills