Jason Liggayu is a software engineer with a decade of experience building full‑stack, customer-facing platforms and developer tools from 0→1 ventures to mature products. Currently at Justworks Labs he’s helping architect a payroll‑agnostic benefits administration platform while also contributing to Structy’s pedagogy-driven product to teach data structures and algorithms. He has a track record of improving reliability and delivery speed—migrating frontends to serverless deployments that cut deploy time by 85%—and has implemented type-safe templates-as-code, extensible signup funnels, and performance fixes in React. An active open-source contributor, he helped build Swell, a cross-platform streaming API testing tool, focusing on test infrastructure, sandboxing, and UX for running scheduled tests. Jason pairs production engineering with curriculum development—having created “under-the-hood” DSA content for Codesmith—and brings a practical, educator’s mindset to complex technical problems. Based in New York, he’s equally likely to debug a GraphQL flow as he is to spin hip‑hop records in his downtime.
10 years of coding experience
2 years of employment as a software developer
Bachelor of Arts - BA Economics, Bachelor of Arts - BA Economics at The City College of New York
London School of Economics and Political Science
Bachelor's Degree Economics, Bachelor's Degree Economics at Macaulay Honors College at The City University of New York
Swell: API development tool that enables developers to test endpoints served over streaming technologies including Server-Sent Events (SSE), WebSockets, HTTP2, GraphQL, gRPC, and tRPC..
Role in this project:
Full-stack Developer
Contributions:96 commits, 6 PRs, 1 push in 28 days
Contributions summary:Jason primarily contributed to the testing infrastructure and frontend components of the "Swell" API development tool. They implemented and refined tests using Chai and focused on the display of test results in the UI. The user also made UI improvements, such as updating the appearance of test result elements. Furthermore, the user added functionality for running and stopping scheduled tests.
Swell: API development tool that enables developers to test endpoints served over streaming technologies including Server-Sent Events (SSE), WebSockets, HTTP2, GraphQL, and gRPC.
Contributions:26 reviews, 63 PRs, 29 pushes in 1 month
apieventswebsocketstechnologiesgrpc
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