Top Software Engineers in

Comprehensive Open-Source Technology Ecosystem

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docker
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javascript
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nextcloud
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linux
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python

Comprehensive Open-Source Technology Ecosystem encompasses a broad array of tools and technologies designed to facilitate collaboration, security, and efficient management of servers and applications. This ecosystem includes versatile platforms for cloud storage, automation, real-time monitoring, secure communication, and web server management, using a variety of programming languages and technologies like Docker, PHP, JavaScript, Linux, and Go. Its applications range from managing email and cloud data to enabling secure chats and automating workflow.

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

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1

Costa Tsaousis
Founder and CEO of Netdata at Firehol
/
United States
Rock Star
11 years of coding experience
TOP CONTRIBUTIONS TO PROJECTS
theiren46/blocklist-ipsets
144675 commits in 2 months
BBcan177/blocklist-ipsets
19058 commits in 2 days
firehol/blocklist-ipsets
2 commits, 19 PRs, 455406 pushes in 1 day
Top skills
Score
icmp
10
apng
10
statsd
10

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2

Jan Oberhauser
Founder & CEO of n8n.io (not interested in freelance developers, trainers, recruiters, or anything else!) at N8n Io
/
Germany
Rock Star
TOP CONTRIBUTIONS TO PROJECTS
n8n-io/n8n
123 reviews, 4636 commits, 2035 PRs in 3 years 7 months
janober/n8n
1 review, 136 commits, 2 PRs in 1 year 2 months
patevs/n8n
107 commits in 1 year 9 months
Top skills
Score
api
10
voice
10
n8n
10

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3

Morris Jobke
Backend Engineer at Jimdo
/
Germany
Rock Star
12 years of coding experience
TOP CONTRIBUTIONS TO PROJECTS
nextcloud/server
955 reviews, 5945 commits, 5534 PRs in 6 years 3 months
owncloud/core
2447 commits, 1559 PRs, 1386 pushes in 3 years 4 months
nextcloud/documentation
172 reviews, 2196 commits, 1739 PRs in 5 years
Top skills
Score
ios
10
previews
10
ace-editor
10

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4

Nick Craig-Wood
Rclone Services Ltd - helping businesses with my open source program 'rclone' at Rclone Services
/
United Kingdom
Rock Star
20 years of coding experience
TOP CONTRIBUTIONS TO PROJECTS
rclone/rclone
101 releases, 1576 reviews, 4943 commits in 10 years 3 months
ncw/www
147 commits, 4 pushes, 2 comments in 18 years 6 months
ncw/swift
12 reviews, 211 commits, 53 PRs in 9 years 2 months
Top skills
Score
amazon-s3
10
k8s
10
samd21
10

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5

Joas Schilling
Senior Software Engineer Team Lead bei Nextcloud GmbH at Nextcloud
/
Germany
Rock Star
17 years of coding experience
TOP CONTRIBUTIONS TO PROJECTS
nextcloud/spreed
246 releases, 3489 reviews, 8875 commits in 6 years 3 months
phpbb/phpbb-app
4730 commits in 7 years 6 months
nextcloud/server
10 releases, 3395 reviews, 4483 commits in 6 years 10 months
Top skills
Score
smartphone
10
gps
10
user-registration
10

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6

Matt Holt
I write code with my bare hands. Created the Caddy web server. **I DO NOT CHECK LINKEDIN** at Self Employed
/
United States
Rock Star
12 years of coding experience
TOP CONTRIBUTIONS TO PROJECTS
caddyserver/caddy
79 releases, 1326 reviews, 2285 commits in 8 years 1 month
avelino/awesome-go
217 commits, 110 PRs, 116 pushes in 1 year 9 months
mholt/PapaParse
1 release, 3 reviews, 201 commits in 4 years 9 months
Top skills
Score
data-binding
10
hypermedia
10
goplus
10

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7

Iván Ovejero
Generalist Full-Stack Developer | TypeScript, Node.js, Vue at N8n
/
Germany
Rock Star
TOP CONTRIBUTIONS TO PROJECTS
n8n-io/n8n
24 releases, 1856 reviews, 1872 commits in 2 years 7 months
ivov/eslint-plugin-n8n-nodes-base
19 releases, 1 review, 532 commits in 10 months
patevs/n8n
22 commits in 1 year 7 months
Top skills
Score
studio
10
kubernetes
10
git-gui
10

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8

Joram Wilander
Director of Engineering at Mattermost
/
Canada
Rock Star
TOP CONTRIBUTIONS TO PROJECTS
mattermost/mattermost-webapp
157 reviews, 902 commits, 869 PRs in 6 years 6 months
mattermost/mattermost
120 reviews, 1866 commits, 3004 PRs in 7 years 3 months
sonereker/mattermost-webapp
644 commits in 2 years 11 months
Top skills
Score
amazon-s3
10
helm
10
minio
10

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9

Mutasem Aldmour
Tech Lead | Early n8n Engineer | ex-Expedia at N8n
/
Germany
Rock Star
TOP CONTRIBUTIONS TO PROJECTS
n8n-io/n8n
1864 reviews, 1481 commits, 492 PRs in 2 years
irahardianto/n8n
514 commits in 3 months
starzou/n8n
393 commits in 2 months
Top skills
Score
studio
10
inferno
10
typescript
10

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10

John Molakvoæ
/
United States
Rock Star
TOP CONTRIBUTIONS TO PROJECTS
nextcloud/server
23 releases, 3583 reviews, 3087 commits in 6 years 4 months
nextcloud/documentation
118 reviews, 582 commits, 457 PRs in 5 years 2 months
nextcloud-libraries/nextcloud-vue
84 releases, 986 reviews, 1213 commits in 4 years 9 months
Top skills
Score
upload
10
vue-component
10
editorjs
10

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11

Corey Hulen
Mattermost CTO, collaboration for mission critical work at Mattermost
/
United States
Rock Star
12 years of coding experience
TOP CONTRIBUTIONS TO PROJECTS
mattermost/mattermost
11 releases, 1493 commits, 1760 PRs in 3 years
coreyhulen/coreyhulen.github.io
49 commits, 3 PRs, 32 pushes in 6 years 4 months
mattermost/docs
1 review, 68 commits, 21 PRs in 3 years 5 months
Top skills
Score
react
10
ios-application
10
asana
10

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12

Harrison Healey
Software Design Engineer at Mattermost
/
Canada
Rock Star
TOP CONTRIBUTIONS TO PROJECTS
mattermost/mattermost-webapp
2336 reviews, 1313 commits, 1686 PRs in 6 years 11 months
mattermost/mattermost
1346 reviews, 1428 commits, 2306 PRs in 7 years 7 months
sonereker/mattermost-webapp
574 commits in 4 years 1 month
Top skills
Score
gitlab-api
10
gitlab
10
api-documentation
10

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13

Christopher Speller
Full Stack Software Developer at Mattermost
/
Canada
Rock Star
10 years of coding experience
TOP CONTRIBUTIONS TO PROJECTS
mattermost/mattermost-webapp
174 reviews, 308 commits, 395 PRs in 6 years 5 months
mattermost/mattermost
30 releases, 293 reviews, 1383 commits in 7 years 8 months
uber-uchat/mattermost-server
98 commits in 1 year 6 months
Top skills
Score
react
10
lifecycle
10
grav-plugin
10

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14

Arthur Schiwon
Senior Software Engineer at Nextcloud GmbH
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Germany
Rock Star
13 years of coding experience
TOP CONTRIBUTIONS TO PROJECTS
nextcloud/server
127 releases, 1589 reviews, 2782 commits in 7 years 1 month
owncloud/core
1797 commits, 232 PRs, 307 pushes in 5 years 1 month
nextcloud/sharepoint
28 releases, 65 reviews, 316 commits in 5 years 10 months
Top skills
Score
web-server
10
release-management
10
backup
10

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15

Julius Hartl
Software Engineer bei Nextcloud GmbH at Nextcloud
/
Germany
Rock Star
11 years of coding experience
TOP CONTRIBUTIONS TO PROJECTS
nextcloud/text
4 releases, 1380 reviews, 2084 commits in 3 years 11 months
nextcloud/deck
128 releases, 1059 reviews, 3619 commits in 6 years 8 months
nextcloud/server
1771 reviews, 2758 commits, 1604 PRs in 6 years 8 months
Top skills
Score
mailserver
10
kaios
10
scrum
10

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16

Brad Warren
Consultant at Electronic Frontier Foundation
/
United States
Rock Star
TOP CONTRIBUTIONS TO PROJECTS
certbot/certbot
24 releases, 577 reviews, 4176 commits in 7 years 9 months
certbot/website
51 reviews, 393 commits, 366 PRs in 5 years 7 months
certbot/josepy
56 reviews, 114 commits, 142 PRs in 4 years 9 months
Top skills
Score
ssl
10
acme-protocol
10
python
10

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17

Ricardo Espinoza
IT Manager at Lore
/
United Kingdom
Rock Star
TOP CONTRIBUTIONS TO PROJECTS
n8n-io/n8n
2 releases, 263 reviews, 1061 commits in 3 years 3 months
1989shack/n8n
63 commits in 1 month
RicardoE105/n8n
319 pushes, 267 branches, 1 comment in 2 years 5 months
Top skills
Score
studio
10
typescript
10
rpa
10

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18

Robin Appelman
Employed at nextcloud-gmbh
/
United States
Rock Star
14 years of coding experience
TOP CONTRIBUTIONS TO PROJECTS
owncloud/core
3832 commits, 493 PRs, 774 pushes in 6 years 4 months
nextcloud/server
628 reviews, 2155 commits, 1225 PRs in 6 years 9 months
demostf/demos.tf
279 commits, 4 PRs, 128 pushes in 6 years 2 months
Top skills
Score
web-server
10
dms
10
gameplay
10

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19

Austin Hemmelgarn
Site Reliability/DevOps Engineer at Netdata (netdata.cloud).
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United States
Rock Star
11 years of coding experience
TOP CONTRIBUTIONS TO PROJECTS
netdata/netdata
2 releases, 1055 reviews, 723 commits in 5 years 6 months
Ferroin/netdata
104 commits, 5 PRs, 3083 pushes in 4 years 5 months
Ferroin/ahferroin7-overlay
222 commits, 100 pushes in 9 years 2 months
Top skills
Score
lastfm
10
real-time
10
bootloader
10

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20

Lukas Reschke
InfoSec Manager | ex-Meta | CISSP | CCSP at Authentick
/
Germany
Rock Star
12 years of coding experience
TOP CONTRIBUTIONS TO PROJECTS
owncloud/core
2444 commits, 1026 PRs, 989 pushes in 4 years
nextcloud/server
21 releases, 232 reviews, 1645 commits in 5 years 6 months
nextcloud/app-certificate-requests
217 commits, 97 PRs, 210 pushes in 5 years 10 months
Top skills
Score
mautic
10
aio
10
fido-u2f
10

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