Staff Engineer - Backend

About High Level:
High Level is an AI-powered business operating system that gives agencies, entrepreneurs and SMBs the infrastructure to build, automate and scale. Today, High Level supports SMBs across 150+ countries, fueling community-driven growth rooted in real customer outcomes.
To date, businesses operating on High Level have generated over $7 billion in ecosystem value, demonstrating the impact of shared infrastructure  centralizing conversations, automation and intelligence into one system, we help businesses move faster, reduce complexity and execute efficiently.
Behind the platform, High Level powers more than 4 billion API hits and 2.5 billion message events daily. With 250 terabytes of distributed data, 250+ microservices and over 1 million domain names supported, our architecture is built for performance, resilience and long-term scalability.

Our People
With over 2,000 team members across 10+ countries, High Level operates as a global, remote-first organization built for speed and ownership. We value initiative, clarity and execution, creating space for ambitious people to build systems that support millions of businesses worldwide. Here, innovation thrives, ideas are celebrated and people come first, no matter where they call home.

Our Impact
Every month, High Level enables more than 1.5 billion messages, 200 million leads and 20 million conversations for the more than 1 million businesses we support. Behind those numbers are real people building independence, expanding opportunity and creating measurable impact. We’re proud to be a part of that.
Learn more about us on our You Tube Channel or Blog Posts

About the Role

We are looking for a Staff Engineer – Backend to help design, build, and evolve the systems powering High Level’s CRM platform. This is a senior individual contributor role for an engineer who can solve complex backend and distributed systems problems, influence architecture across teams, and raise the engineering bar across the organization.

You will work on systems handling high-volume APIs, asynchronous processing, large datasets, search and indexing, event-driven workflows, and business-critical operations s role requires someone who can move comfortably between architecture and implementation. You should be able to investigate a production bottleneck, design a scalable solution, challenge existing architectural assumptions, and work hands‑on with engineers to take that solution to production.

• Design and evolve highly scalable, reliable backend systems and services

• Lead architecture for complex and cross-team backend initiatives

• Design APIs, data models, event-driven workflows, and service boundaries

• Build systems capable of handling high-throughput requests and large-scale datasets

• Design asynchronous processing using queues, events, streams, and background workers

• Make architectural decisions around relational databases, No
  
  SQL databases,search systems, caching, and messaging infrastructure

• Identify performance bottlenecks across applications, databases, queues, and infrastructure

• Improve API latency, throughput, resource utilization, and system scalability

• Design systems for graceful degradation, retries, idempotency, failure recovery,and fault tolerance

• Establish patterns for data consistency and distributed workflows across services

• Lead database and data‑access optimization initiatives

• Design effective caching, indexing, partitioning, sharding, and data‑retention strategies

• Improve observability through metrics, logs, tracing, dashboards, and actionablealerts

• Lead investigations into complex production incidents and drive permanent corrective actions

• Define engineering standards around reliability, scalability, testing, security, and maintainability

• Review…