Matt Phillips
CTO at newbeeper
London, England, United Kingdom
Summary
🤩
Rockstar🎓
Top SchoolMatt Phillips is a seasoned software leader and CTO based in London with a decade of experience building scalable, test-driven systems across startups and large enterprises. He blends hands-on full‑stack engineering with product-led leadership, having launched startups (newbeeper), led engineering teams at Holland & Barrett Ventures, and delivered production systems for companies like BeReal, Eurostar and Shell. A passionate advocate of pure functional programming and test automation, he is a core maintainer of Jest and author of multiple npm packages reaching over 100 million monthly downloads—work that includes significant improvements to Jest’s data-driven testing features. He excels at architecting migrations and APIs (GraphQL/Node/TypeScript) and rapidly shipping end-to-end solutions, from e‑commerce fulfilment to music integrations. Known for upskilling teams and fostering open-source practices, he combines pragmatic delivery with a taste for elegant, well-tested code.
10 years of coding experience
6 years of employment as a software developer
Bachelor's Degree, Computer Science, 2:1, Bachelor's Degree, Computer Science, 2:1 at University of Nottingham
Github Skills (17)
unit-testing10
javascript10
testing10
jestjs10
test-automation10
algorithm9
assertion9
matcher9
algorithms9
mochajs8
moc8
arrayobject8
snapshots8
difference8
typescript4
Programming languages (7)
Github contributions (5)
jest-community/jest-extended
Oct 2017 - Sep 2022
Additional Jest matchers 🃏💪
Role in this project:
Test Automation Engineer
Test Automation EngineerContributions:18 releases, 11 reviews, 171 commits in 4 years 11 months
Contributions summary:Matt primarily contributed to the development of the `jest-extended` library by adding new matchers, refactoring existing ones, and improving test coverage. They introduced the `toBeTrue`, `toContainValue`, `toContainValues`, `toIncludeSameMembers`, `toBeValidDate`, and `toIncludeRepeated` matchers. The user also improved the error messages of existing matchers to provide better feedback to the user.
assertionsextendedjesttestingjavascript
mattphillips/deep-object-diff
Nov 2016 - Nov 2022
Deep diffs two objects, including nested structures of arrays and objects, and returns the difference. ❄️
Role in this project:Full-stack Developer
Full-stack DeveloperContributions:14 releases, 96 commits, 31 PRs in 6 years
Contributions summary:Matt primarily focused on developing a deep object diffing library. Their work involved implementing core functionality to compare objects, arrays, and primitive data types, identifying and returning differences. They refactored the code to improve efficiency and added comprehensive tests, including parameterized tests and tests for specific edge cases like date comparisons and prototype pollution. The user also extracted utility functions to enhance code organization.
returnsarraylodashjavascriptarrays
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