Top Software Engineers in

Ruby on Rails Development Ecosystem

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ruby
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rails
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activerecord
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ruby-on-rails
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testing

Ruby on Rails Development Ecosystem is focused on Ruby on Rails, a server-side web application framework written in Ruby. It emphasizes convention over configuration and is used to build high-performing, scalable web applications and databases. The ecosystem includes libraries and tools for testing, data handling, authentication, file management, deployment, and much more, enabling efficient development of complex web applications.

Ranks are based on the open source contributions and reassessed every 30 days

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1

Rafael Mendonça França
Principal Engineer at Shopify
/
Canada
Rock Star
15 years of coding experience
TOP CONTRIBUTIONS TO PROJECTS
rails/rails
89 releases, 1415 reviews, 7155 commits in 10 years 10 months
josh/rails
3268 commits in 4 years 4 months
heartcombo/simple_form
1 review, 506 commits, 31 PRs in 9 years 5 months
Top skills
Score
web-server
10
devcontainer
10
warden
10

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2

Ryuta Kamizono
Software Engineer
/
Japan
Rock Star
15 years of coding experience
TOP CONTRIBUTIONS TO PROJECTS
rails/rails
218 reviews, 4528 commits, 3115 PRs in 9 years 2 months
kamipo/talks
32 commits, 14 pushes in 8 years 6 months
kamipo/rails
1660 pushes, 2244 branches, 1 comment in 9 years 5 months
Top skills
Score
hanami
10
database
10
client-library
10

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3

Aaron Patterson
Senior Staff Engineer at Shopify
/
United States
Rock Star
17 years of coding experience
TOP CONTRIBUTIONS TO PROJECTS
josh/rails
4293 commits in 5 years 10 months
rails/rails
6 releases, 49 reviews, 2170 commits in 13 years
sparklemotion/nokogiri
2 reviews, 1299 commits, 17 PRs in 14 years 1 month
Top skills
Score
web-server
10
graphql-ruby
10
doctest
10

#

4

Eileen Uchitelle
Senior Staff Engineer at Shopify working on the Ruby open source ecosystem & Rails Core Team
/
United States
Rock Star
10 years of coding experience
TOP CONTRIBUTIONS TO PROJECTS
rails/rails
533 reviews, 2012 commits, 1621 PRs in 8 years 8 months
eileencodes/rails
182 commits, 1 PR, 823 pushes in 8 years 10 months
basecamp/bcx-api
63 commits, 2 PRs, 2 pushes in 4 months
Top skills
Score
hanami
10
programming-language
10
monkey
10

#

5

Kasper Timm Hansen
/
Denmark
Rock Star
11 years of coding experience
TOP CONTRIBUTIONS TO PROJECTS
rails/rails
147 reviews, 1694 commits, 1272 PRs in 6 years 11 months
rails/globalid
8 releases, 92 commits, 36 PRs in 7 years 1 month
rails/rails-html-sanitizer
2 releases, 4 reviews, 73 commits in 6 years 1 month
Top skills
Score
record
10
faster
10
redis
10

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6

Jonathan Hefner
Senior Software Engineer at Jonathan Hefner
/
United States
Rock Star
11 years of coding experience
TOP CONTRIBUTIONS TO PROJECTS
rails/rails
1027 reviews, 1259 commits, 1233 PRs in 3 years 9 months
jonathanhefner/rails
304 commits, 2086 pushes, 729 branches in 3 years 2 months
jonathanhefner/casual_support
130 commits, 26 pushes, 3 branches in 5 years 9 months
Top skills
Score
css
10
rails-gem
10
buildpack
10

#

7

Yuji Yaginuma
Self-Employed - Software Engineer at Self Employed
/
Japan
Rock Star
11 years of coding experience
TOP CONTRIBUTIONS TO PROJECTS
rails/rails
2 reviews, 1116 commits, 954 PRs in 5 years 4 months
ginzarb/meetups
745 commits, 690 PRs, 634 pushes in 5 years 8 months
y-yagi/travel_base
1297 commits, 911 PRs, 914 pushes in 5 years 2 months
Top skills
Score
upload
10
rspec
10
filesystem
10

#

8

Matthew Draper
Staff Software Engineer at GitHub
/
Australia
Rock Star
19 years of coding experience
TOP CONTRIBUTIONS TO PROJECTS
rails/rails
260 reviews, 1004 commits, 937 PRs in 9 years 2 months
gel-rb/gel
2 releases, 396 commits, 56 PRs in 4 years 10 months
matthewd/rails
1 review, 102 commits, 2 PRs in 8 years 8 months
Top skills
Score
hanami
10
opal
10
carbon-emissions
10

#

9

David Heinemeier Hansson
Co-owner & CTO of 37signals (Makers of Basecamp + HEY) at 37signals
/
United States
Rock Star
19 years of coding experience
TOP CONTRIBUTIONS TO PROJECTS
josh/rails
3809 commits in 10 years 3 months
basecamp/bcx-api
62 commits, 1 push, 13 comments in 3 years 10 months
rails/rails
87 reviews, 964 commits, 448 PRs in 10 years 7 months
Top skills
Score
wysiwyg
10
docker
10
zero
10

#

10

Jean-Louis Bostock
Developer at Shopify
/
Canada
Rock Star
15 years of coding experience
TOP CONTRIBUTIONS TO PROJECTS
Shopify/shipit-engine
1312 commits, 147 PRs, 450 pushes in 8 years 8 months
rails/rails
905 reviews, 961 commits, 1028 PRs in 8 years 10 months
redis/redis-rb
79 reviews, 361 commits, 265 PRs in 7 years 3 months
Top skills
Score
libmemcached
10
speedup
10
truffle
10

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11

Sage Griffin
Creator of Diesel, formerly co-lead of crates.io and Rails committer
/
United States
Rock Star
11 years of coding experience
TOP CONTRIBUTIONS TO PROJECTS
diesel-rs/diesel
29 releases, 3 reviews, 1979 commits in 5 years 1 month
rails/rails
943 commits, 757 PRs, 804 pushes in 4 years 6 months
josh/rails
496 commits in 1 year 10 months
Top skills
Score
html5
10
linter
10
rust-language
10

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12

Yves Senn
Software Developer at Hoelzle AG
/
Switzerland
Rock Star
16 years of coding experience
TOP CONTRIBUTIONS TO PROJECTS
rails/rails
872 commits, 378 PRs, 619 pushes in 7 years 7 months
josh/rails
1182 commits in 2 years 4 months
senny/sablon
1 release, 133 commits, 17 PRs in 6 years 7 months
Top skills
Score
gitlab-api
10
eclipse
10
viewer
10

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13

Xavier Noria
Ruby on Rails Consultant at Self Employed
/
Spain
Rock Star
21 years of coding experience
TOP CONTRIBUTIONS TO PROJECTS
thank-you-github/thank-you-github
2224 commits, 2348 PRs, 1001 pushes in 2 years 11 months
josh/rails
2165 commits in 6 years 9 months
rails/rails
22 reviews, 839 commits, 262 PRs in 12 years 8 months
Top skills
Score
hanami
10
virtual-machine
10
python
10

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14

Andrew White
CTO at Unboxed
/
United Kingdom
Rock Star
16 years of coding experience
TOP CONTRIBUTIONS TO PROJECTS
alphagov/e-petitions
38 releases, 15 reviews, 1634 commits in 7 years 10 months
pixeltrix/www.fargosfordstreet.com
71 commits, 1 push in 8 years 5 months
rails/rails
99 reviews, 814 commits, 432 PRs in 10 years
Top skills
Score
hanami
10
ecommerce
10
jbuilder
10

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15

George Claghorn
Staff Software Engineer at Wistia
/
United States
Rock Star
11 years of coding experience
TOP CONTRIBUTIONS TO PROJECTS
rails/rails
5 releases, 45 reviews, 773 commits in 7 years 11 months
basecamp/bcx-api
26 commits, 6 PRs, 5 pushes in 1 year 8 months
georgeclaghorn/georgix
340 commits, 4 PRs, 329 pushes in 2 years 10 months
Top skills
Score
google-cloud-platform
10
uri
10
google-cloud
10

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16

Akira Matsuda
Employed at Freelance
/
Japan
Rock Star
16 years of coding experience
TOP CONTRIBUTIONS TO PROJECTS
kaminari/kaminari
2 releases, 1053 commits, 57 PRs in 12 years 1 month
ruby-no-kai/rubykaigi-static
124 commits, 71 PRs, 40 pushes in 4 years
rails/rails
28 reviews, 715 commits, 70 PRs in 11 years 2 months
Top skills
Score
html5
10
sharding
10
mongoid
10

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17

Vipul A M
Founder & CEO at Saeloun
/
United States
Rock Star
13 years of coding experience
TOP CONTRIBUTIONS TO PROJECTS
rails/rails
94 reviews, 539 commits, 637 PRs in 9 years 10 months
josh/rails
187 commits in 2 years 2 months
vipulnsward/rails
42 commits, 2 PRs, 318 pushes in 5 years 8 months
Top skills
Score
upload
10
react-rails
10
time-tracking
10

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18

Jon Moss
Breaking news reporter at Syracuse.com/The Post Standard
/
United States
Rock Star
10 years of coding experience
TOP CONTRIBUTIONS TO PROJECTS
rails/rails
512 commits, 510 PRs, 315 pushes in 2 years 1 month
doorkeeper-gem/doorkeeper
1 release, 69 commits, 47 PRs in 2 years 9 months
nodejs/build
68 commits, 114 PRs, 71 pushes in 10 months
Top skills
Score
libp2p
10
ruby
10
macos
10

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19

John Hawthorn
Staff Software Engineer at GitHub
/
Canada
Rock Star
16 years of coding experience
TOP CONTRIBUTIONS TO PROJECTS
solidusio/solidus
54 releases, 3499 commits, 1817 PRs in 3 years 4 months
rails/rails
17 releases, 137 reviews, 498 commits in 6 years 2 months
jhawthorn/fzy
9 releases, 405 commits, 55 PRs in 7 years 7 months
Top skills
Score
hanami
10
command-line
10
protocol-buffers
10

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20

Eugene Kenny
Staff Engineer at Intercom
/
Ireland
Rock Star
12 years of coding experience
TOP CONTRIBUTIONS TO PROJECTS
rails/rails
182 reviews, 496 commits, 428 PRs in 7 years 7 months
cypriss/mutations
53 commits, 21 PRs, 37 pushes in 6 years 1 month
rubocop/rubocop-rails
3 reviews, 19 commits, 19 PRs in 2 years 5 months
Top skills
Score
factory-bot
10
paging
10
json
10

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