HighLevel

HighLevel

HighLevel provides an all-in-one sales and marketing platform that agencies can white label and resell, offering tools and resources designed to help businesses consolidate their marketing efforts and achieve their growth objectives.

Internet Software & Services
251-1K
Founded 2018
$60M raised

Description

  • Plan and implement architectural improvements for new features, including custom objects, with performance in mind.
  • Diagnose and remove bottlenecks in backend services, APIs, and message flows.
  • Profile Node.js services and rewrite hot paths to improve CPU, heap, and event-loop efficiency.
  • Improve platform resilience through batching, caching, pooling, concurrency controls, and backpressure.
  • Harden services against cascading failures and dependency slowness.
  • Design and scale rate-limiting, queueing, and circuit-breaker patterns for high-load systems.
  • Optimize database queries, indexing strategies, denormalization, and read/write paths.
  • Collaborate with SRE and infrastructure teams on autoscaling, capacity planning, quotas, and workload efficiency.
  • Participate in performance incident reviews and drive root-cause fixes.
  • Define best practices, create reusable performance tooling and dashboards, and mentor engineers on scalable and reliable service design.

Requirements

  • 5+ years of backend engineering experience focused on large-scale systems.
  • Strong experience with Node.js internals, including the event loop, memory model, and async behavior.
  • Proficiency with CPU and heap profilers, tracing, and metrics for diagnosing performance issues.
  • Strong understanding of microservices, distributed systems, high-throughput APIs, caching, queuing, backpressure, rate limiting, and load balancing.
  • Experience with MongoDB, Postgres/MySQL, Firestore, Redis, ClickHouse, or similar databases.
  • Familiarity with Kubernetes, GCP/AWS, and observability tools such as Grafana, Prometheus, and OpenTelemetry.
  • Strong communication skills and the ability to explain bottlenecks clearly without finger-pointing.
  • A mindset that treats every millisecond, query, and allocation as something to optimize thoughtfully.
  • Experience with high-traffic Node.js services serving millions of requests per hour is preferred.
  • Familiarity with distributed tracing, tail sampling, RED/USE metrics, and SLO-driven engineering is preferred.
  • Experience preventing and mitigating cascading failures at scale is preferred.
  • Background in runtime optimization, capacity planning, or SRE-style operational excellence is preferred.
  • Contributions to internal performance frameworks, profiling tools, or reliability toolkits are preferred.

Interested in this position?

Apply directly on the company website

Apply Now

Similar Roles

Sr. Specialist Solutions Architect - Builder Team

Databricks 1K-5K IT Services

Databricks is hiring a Senior Specialist Solutions Architect on the Builder Team to design and deliver infrastructure and tooling that extend the Databricks platform for data and AI initiatives.

Apache Spark Databricks Go Java LLM Machine Learning Python Scala Terraform
1 hour, 9 minutes ago

Director, Demand Side Platform (DSP) Engineering

The TARA Group 11-50 Media

The Director of DSP Engineering will lead development of a demand side platform at a US-based company, driving real-time bidding, backend performance, and campaign management tools that support revenue growth and client success.

AWS Docker GCP Go Kubernetes Machine Learning
1 hour, 54 minutes ago

Senior Backend Engineer

Remote 251-1K Professional Services

Remote is hiring an engineer to help build tools, APIs, integrations, and agentic workflows for its globally distributed HR and Payroll products in a fully remote, async environment.

Angular AWS CI/CD Clojure Docker Elixir Erlang GitLab Haskell Kubernetes Next.js Phoenix PostgreSQL React Scala Vue.js
3 hours, 2 minutes ago

Java Engineer - Mid to Senior

Ethics Code Diversified Consumer Services

ETHICS CODE is seeking a Mid to Senior Java Engineer to design, develop, and maintain business-critical Java applications within a collaborative engineering team.

Agile Git Hibernate Java MySQL Oracle PostgreSQL REST API Spring
3 hours, 30 minutes ago

You're on a roll! Sign up now to keep applying.

Sign Up

Already have an account? Log in

Used by 14,729+ remote workers