Samuel Arnold
Senior Software Developer at Datadog
Cornwall, Prince Edward Island, Canada
Summary
🤩
Rockstar🎓
Top SchoolSamuel Arnold is a Senior Software Developer with 10 years of experience building high-performance, low-latency systems in C++ and Go, currently contributing to observability at Datadog. He has deep expertise in distributed systems, database internals, and performance tuning—at InfluxData he cut memory usage of the clustered DB by 50% for many customers and drove a 10x write scalability improvement for a cloud variant. His open-source contributions include significant backend work on InfluxDB and Kapacitor, adding Flux task execution and Prometheus integrations to improve time-series processing and monitoring. Comfortable working across storage engines, query optimization, and trading engines, he combines practical mathematics with hands-on engineering to simplify complex systems. Based in Cornwall, PEI, he pairs enterprise-scale impact with a history of academic research and independent problem-solving that surfaces non-obvious optimization opportunities.
10 years of coding experience
6 years of employment as a software developer
Bachelor of Engineering (B.Eng.), Mechanical Engineering, 4.11/4.3, Bachelor of Engineering (B.Eng.), Mechanical Engineering, 4.11/4.3 at Dalhousie UniversityBachelor of Science (B.Sc.), Mathematics, Bachelor of Science (B.Sc.), Mathematics at University of Prince Edward Island
English, French
Github Skills (18)
timeseries-database10
data-collection10
databases10
time-series10
kapacitor10
go10
prometheus10
flux10
collections10
fluxor10
relational-databases10
sql-database10
metric10
database10
architecture9
Programming languages (9)
Github contributions (5)
influxdata/influxdb
Dec 2020 - Nov 2022
Scalable datastore for metrics, events, and real-time analytics
Role in this project:
Back-end Developer
Back-end DeveloperContributions:788 reviews, 270 commits, 390 PRs in 1 year 11 months
Contributions summary:Samuel's commits primarily focus on refactoring and code improvements within the `influxdb` repository, a time-series database. The changes include the removal of unused code, refactoring of task-related code, and optimization of the query engine. The user also implemented metrics collection for the TSM compaction process, the shard and WAL subsystems within the storage engine.
real-time-analyticsscalablereactanalyticsevents
influxdata/kapacitor
Apr 2021 - Nov 2021
Open source framework for processing, monitoring, and alerting on time series data
Role in this project:Backend Developer
Backend DeveloperContributions:94 reviews, 29 commits, 22 PRs in 7 months
Contributions summary:Samuel primarily focused on updating dependencies and integrating new features related to Prometheus and Flux tasks within the Kapacitor framework. This included updating the Prometheus dependency, which involved significant reformatting of service discovery packages. They also implemented the Flux task skeleton, integrating Flux task code, and enabling the execution of Flux tasks with the built-in Flux engine. These contributions focused on enhancing the time series data processing and monitoring capabilities of the Kapacitor project.
kapacitorseries-dataalertingtime-seriesmetrics
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