James Hartig
Co-founder at Admiral: Adblock Publisher Solutions
Gainesville, Florida, United States
Summary
🤩
Rockstar🎓
Top SchoolJames Hartig is a seasoned back-end and DevOps engineer and co-founder with 15 years of experience building and operating high-scale systems that handled billions of monthly requests. He led backend and ops at Admiral, optimizing cloud TCO and building an in-house deployment and CI/CD platform while operating services on GCP with Go, ClickHouse, YugabyteDB, and BigTable. Early work at Grooveshark and multiple startups honed his ability to squeeze performance from limited hardware using MongoDB, Redis, and MySQL, and he still enjoys contributing to open-source tooling. His contributions to prominent Go projects—miekg/dns, pgx, seaweedfs, and Consul—showcase deep expertise in networking, storage, database drivers, and distributed systems. Colleagues describe him as energetic and team-spirited, equally comfortable on-call building monitoring/alerting or refining core libraries. Based in Gainesville, FL, he blends founder-level product instincts with hands-on coding and systems reliability.
15 years of coding experience
8 years of employment as a software developer
Strongsville High SchoolComputer Science Engineering Business Math, Computer Science Engineering Business Math at University of Florida
English
Stackoverflow
1,009reputation
246kreached
28answers
10questions
Github Skills (55)
pointer10
postgresql10
volumes10
cassandra10
clientside10
apidoc10
testing10
databases10
distributed-systems10
consul10
database-driver10
go10
driver10
api10
service-discovery10
Programming languages (19)
Github contributions (5)
go-validator/validator
Dec 2015 - Apr 2022
Package validator implements struct field validations
Role in this project:
Back-end Developer
Back-end DeveloperContributions:4 reviews, 27 commits, 27 PRs in 6 years 5 months
Contributions summary:James primarily contributed to the core functionality of the `go-validator/validator` repository. Their work involved adding support for validating structs, including embedded and private fields, along with enhancements for pointers, non-nil checks, and type aliases. The user also refactored struct validation logic, implemented support for slices and maps, and resolved issues related to the copying of validation function maps. This demonstrates a focus on extending and refining the library's validation capabilities.
golangvalidationvalidationsgovalidator
apache/cassandra-gocql-driver
Oct 2019 - Apr 2022
GoCQL Driver for Apache Cassandra®
Role in this project:Back-end Developer
Back-end DeveloperContributions:56 reviews, 5 commits, 18 PRs in 2 years 6 months
Contributions summary:James primarily contributed to the core functionality of the GoCQL driver for Apache Cassandra. They addressed issues related to connection management, including optimizing the handling of host connections and reconnections, ensuring efficient peer discovery, and preventing connection errors. Their work also encompassed improvements to query execution, such as pinning queries to specific connections. They also focused on fixing some event handling and edge cases, like host filtering.
golangdrivernosqlcassandradatabase
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