Jason Killian
Software Engineer at Hex Technologies
New York, New York, United States
Summary
🤩
Rockstar🎓
Top SchoolJason Killian is a seasoned software engineer with 13 years of experience building both front-end and back-end systems, currently based in New York and working at Hex Technologies. He has a strong track record at startups and product-focused companies like TrialSpark and Palantir, contributing to scalable web apps, tooling, and test automation. Jason is an active open-source contributor, improving TypeScript typings and UI toolkits in well-known projects such as DefinitelyTyped, Blueprint, and js-joda, where he tackled build pipelines, accessibility, and data transformation concerns. Comfortable across Ruby on Rails, modern JS frameworks, and build systems, he brings pragmatic full-stack experience rooted in production reliability and developer experience. A practical problem-solver, he has also shipped client-facing interactive apps and tooling dating back to early ActionScript and cloud-hosted full-stack projects.
13 years of coding experience
10 years of employment as a software developer
Bachelor of Science (BS) Computer Science, Bachelor of Science (BS) Computer Science at Penn State University
Stackoverflow
1reputation
0reached
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0questions
Github Skills (34)
static-typing10
javascript10
blueprint10
static-analysis10
build-definition10
ui-components10
testing10
expo10
typescript10
typescript-definitions10
type-definition10
rule-engine10
webpack10
data-transformation10
optional-typing10
Programming languages (16)
Github contributions (5)
palantir/tslint
Sep 2015 - Jun 2018
:vertical_traffic_light: An extensible linter for the TypeScript language
Role in this project:
Back-end Developer & Test Automation Engineer
Back-end Developer & Test Automation EngineerContributions:46 releases, 156 commits, 474 PRs in 2 years 8 months
Contributions summary:Jason primarily focused on improving the quality and maintainability of the `tslint` project, specifically enhancing the rule set. They implemented fixes for several rules, including `no-unused-expression`, `no-internal-module`, and `trailing-comma`, addressing false positives and edge cases. Furthermore, the user made significant contributions to the test suite, including the addition of new tests and improved configuration tests. Finally, the user prepared and released various versions of the project.
linterlighteslinttraffic-lighttslint
palantir/blueprint
Nov 2016 - May 2021
A React-based UI toolkit for the web
Role in this project:Front-end Developer
Front-end DeveloperContributions:1 review, 17 commits, 20 PRs in 4 years 7 months
Contributions summary:Jason primarily contributed to the UI aspects of the Blueprint React-based UI toolkit. Their work included fixing package names in landing page HTML, removing meta viewport tags from documentation, and adding properties to the Tree component. They also addressed a null reference bug and enhanced the accessibility by filtering props in the Checkbox component. The user's contributions focused on improving the functionality and user experience of core UI elements.
reactblueprintocto-correct-managedsassjavascript
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