Zarir Hamza is a systems-oriented software engineer with 7 years of experience building distributed, low-latency services and observability pipelines across cloud providers. At Datadog he leads OpenTelemetry efforts for serverless APM across AWS, GCP, and Azure, driving multi-cloud tracing architecture and org-wide metric remapping that preserves fidelity between Datadog and OpenTelemetry. As a founding engineer at GameGrid he designed a real-time gaming platform (Flutter + Go + AWS) that synchronizes live game state for concurrent users, and earlier scaled Knowt’s backend to 100K+ users. He combines a pragmatic focus on performance and reliability with a developer-experience mindset, often working where small changes have large-scale impact. He contributes to prominent open-source tracing tooling—adding span.kind tags and improving test coverage in Datadog’s dd-trace-rb client—reflecting deep experience across Go, Ruby, Java, and Python tracers. Based in New Jersey and trained in computer science and mathematics at Rutgers, he thrives on messy, concurrent systems problems that demand engineering judgment.
7 years of coding experience
6 years of employment as a software developer
Bachelor's degree, Computer Science and Mathematics, Bachelor's degree, Computer Science and Mathematics at Rutgers University–New Brunswick
Middlesex County Vocational Academy Math Science &Engineering Techn
Program in Algorithmic and Combinatorial Thinking, Program in Algorithmic and Combinatorial Thinking at Princeton University
Contributions:54 reviews, 21 commits, 58 PRs in 23 days
Contributions summary:Zarir's contributions focused on enhancing the Datadog tracing Ruby client by adding and modifying tags related to span kinds within various integrations. They added `span.kind` tags for server and client roles in gRPC, MongoDB, Redis, and Rack integrations to improve distributed tracing. Furthermore, the user corrected and updated various test specs to accurately reflect the implemented changes. They also updated the code to reflect changes in the underlying libraries.
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