Ivan Jager is a Principal Software Engineer with 11 years of experience, based in Madison, Wisconsin, and currently leading engineering efforts at Splunk. He blends back-end systems expertise—demonstrated by contributions to Rust tooling like cargo-watch and protocol-sensitive fixes in splunk-sdk-python—with front-end polish from work on react-datepicker. Ivan has a strong track record of improving reliability and developer experience: syncing chunked search requests, hardening command-line tooling, adding logging, and tightening tests. His background from Carnegie Mellon and early electronics training reflect a pragmatic, systems-oriented approach that spans automation, build tooling, and UX details. Colleagues appreciate that he moves smoothly between low-level protocol fixes and user-facing refinements, surfacing subtle interoperability and build-process issues before they reach production.
11 years of coding experience
Associate's, Associate's at Instituto Central de Electronica
A simple and reusable datepicker component for React
Role in this project:
Front-end Developer
Contributions:10 commits, 24 PRs, 14 pushes in 1 year 4 months
Contributions summary:Ivan primarily contributed to the front-end development of the React datepicker component. Their work involved implementing new features, such as the ability to render children within the calendar, and addressing existing issues, including fixing stylesheet problems and improving default date selections. Furthermore, they upgraded build tools, refactoring the build process to use sass-lint and prettier. The user also addressed bugs, improved testing, and updated the project's documentation.
Contributions:2 reviews, 12 commits, 3 PRs in 19 days
Contributions summary:Ivan primarily focused on improving the `splunk-sdk-python`'s search command functionality. Their contributions involved synchronizing chunk requests and responses, especially in the context of the SCPv2 protocol, which required adjustments in how the application processes data. They also addressed issues with generating commands and fixed an issue where extra chunks were sent, improving data handling and efficiency. Furthermore, they corrected tests related to internal functionalities within the search commands, improving testing and reliability.
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Ivan Jager - Principal Software Engineer at Splunk