Tim Costa
Senior Software Engineer, Security Data Platform
Austin, Texas, United States
Summary
🤩
Rockstar🎓
Top SchoolTim Costa is a Senior Software Engineer with 11 years of experience building scalable, secure data platforms and real-time systems, currently focused on security data at Twitch/Amazon. He has led teams and engineered petabyte-scale pipelines, HIPAA-compliant media systems, and high-performance Node.js backends using Hapi.js, React, PostgreSQL, Redis, and GraphQL. As a former founder and engineering director in online education, he blends hands-on architecture with people leadership and cross-team coordination. Tim is also an active open-source contributor to DefinitelyTyped, improving TypeScript typings for Hapi.js ecosystems—demonstrating a practical commitment to developer ergonomics beyond his day job. Based in Austin, he pairs systems-level thinking with pragmatic delivery of auditable, secure data services.
11 years of coding experience
9 years of employment as a software developer
Lafayette College
Github Skills (7)
hapi10
typescript10
typescript-definitions10
dts10
typescripts10
type-definition10
typescript-types10
Programming languages (14)
Github contributions (5)
DefinitelyTyped/DefinitelyTyped
Feb 2021 - Feb 2021
The repository for high quality TypeScript type definitions.
Role in this project:
Backend Developer
Backend DeveloperContributions:3 reviews, 5 commits, 7 PRs in 10 days
Contributions summary:Tim primarily contributed to the development of TypeScript type definitions for various Hapi.js-related packages. Their work involved adding initial types and updating existing type definitions for projects such as `@hapipal/avocat`, `@hapipal/toys`, and `@hapipal/schmervice`. These contributions involved creating and modifying `.d.ts` files and test files to ensure accurate typing and compatibility within the `definitelytyped` repository, specifically focusing on Hapi.js-related packages. They also updated types for the `schwifty` package.
typescript-definitionstype-definitionshigh-qualitydtsdefinitions
timcosta/passport-atlassian-oauth
Oct 2015 - Jun 2020
Contributions:2 PRs, 5 pushes, 1 branch in 4 years 8 months
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