Derek Haynes

Frontend Developer

https://talent.gravityer.com/derek-haynes

Observability & AI

San Francisco, CanadaMember since June 23, 2026

Key Strengths

Demonstrated experience with JavaScript, HTML, and CSS through various personal projects, which are core frontend technologies.
Exposure to different frameworks and libraries (e.g., Electron, Tailwind CSS) indicates adaptability.
Experience with Ruby and Python suggests a broader understanding of backend concepts, which can be beneficial for a full-stack perspective in frontend development.

Cultural & Operational Fit

Cultural Fit Analysis

The candidate's personal projects demonstrate a strong initiative and passion for development, including open-source contributions. The diversity of projects, from log analyzers to AI observability and UI starters, suggests a broad interest in technology and a proactive learning approach. While many projects are not directly frontend-specific, the presence of JavaScript, HTML, and CSS in several projects (e.g., finchvox, subtle, electron-hybrid-browserview, tailstart) indicates a foundational alignment with a Frontend Developer role. The candidate appears to be a self-starter and explorer of various technical domains.

Soft Skills & Operational Fit

Insufficient data to assess soft skills and operational fit. No psychometric test results or interview feedback provided.

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Evaluating your skill match against the job requirements…

Assessing your cultural and operational fit

Projects

subtle

January 11, 2026 – Present

Explore and analyze your Claude Code logs with ease.

View Project

finchvox

December 28, 2025 – Present

Voice AI Observability, Elevated

View Project

tailstart

December 22, 2023 – March 6, 2024

Tailwind 3 and Rails 7.1 application starter kit.

View Project

awesome-eval-driven-development

September 28, 2023 – October 11, 2023

A curated list of resources, projects, and products to help implement Eval-Driven-Development (EDD) for LLM-backed apps.

View Project

electron-hybrid-browserview

October 21, 2019 – December 10, 2022

Example Electron Hybrid App using BrowserView

View Project

stripe-cohort-analysis

June 7, 2019 – June 8, 2019

Heatmaps of Stripe Customer Cohorts

View Project

opentracing-ruby

November 18, 2016 – September 23, 2021

OpenTracing API for Ruby

View Project

stackprof

October 10, 2013 – Present

a sampling call-stack profiler for ruby 2.2+

View Project

scout_scout

January 22, 2010 – April 11, 2011

Scout your data out of Scout

View Project

request-log-analyzer

July 25, 2008 – November 18, 2020

Create reports based on your log files. Supports Rails, Apache, MySQL, Delayed::Job, and other formats.

View Project

Key Strengths

Demonstrated experience with JavaScript, HTML, and CSS through various personal projects, which are core frontend technologies.
Exposure to different frameworks and libraries (e.g., Electron, Tailwind CSS) indicates adaptability.
Experience with Ruby and Python suggests a broader understanding of backend concepts, which can be beneficial for a full-stack perspective in frontend development.

Cultural & Operational Fit

Cultural Fit Analysis

Soft Skills & Operational Fit

Insufficient data to assess soft skills and operational fit. No psychometric test results or interview feedback provided.

Derek Haynes

Key Strengths

Cultural & Operational Fit

Top Skills

Skills

Projects

Key Strengths

Cultural & Operational Fit