Top Software Engineers in

Cryptocurrency Systems Development

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bitcoin
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cryptocurrency
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blockchain
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ethereum
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wallet

Cryptocurrency Systems Development involves creating and enhancing technologies for digital currencies and the underlying blockchain infrastructure. It encompasses the design of protocols, the creation of wallets and exchanges, and the development of security features to handle transactions in Bitcoin, Ethereum, and other cryptocurrencies. This field also includes the creation of trading bots and platforms and focuses on privacy, security, and efficiency.

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

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1

maflcko
/
Sweden
Rock Star
10 years of coding experience
TOP CONTRIBUTIONS TO PROJECTS
DeFiCh/ain
5394 commits in 5 years 8 months
bitcoin/bitcoin
3 releases, 3958 reviews, 5795 commits in 7 years 5 months
syscoin/syscoin
3071 commits in 3 years 11 months
Top skills
Score
iot
10
diffie-hellman
10
bitcoin-wallet
10

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2

laanwj
/
Netherlands
Rock Star
15 years of coding experience
TOP CONTRIBUTIONS TO PROJECTS
DeFiCh/ain
11884 commits in 6 years 1 month
bitcoin/bitcoin
22 releases, 863 reviews, 4362 commits in 9 years 3 months
BITC2/bitcoin2
4175 commits in 4 years 6 months
Top skills
Score
iot
10
signatures
10
decentralized-applications
10

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3

fanquake
/
United States
Rock Star
13 years of coding experience
TOP CONTRIBUTIONS TO PROJECTS
Homebrew/homebrew-cask-versions
1781 commits, 590 PRs, 1780 pushes in 3 years 5 months
bitcoin/bitcoin
8 releases, 1429 reviews, 2498 commits in 9 years 9 months
syscoin/syscoin
1572 commits in 3 years 9 months
Top skills
Score
llvm
10
bitcoin-wallet
10
elf
10

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4

Hennadii Stepanov
Bitcoin Core contributor at The Bitcoin Core developers
/
Ukraine
Rock Star
TOP CONTRIBUTIONS TO PROJECTS
hebasto/bitcoin
442 reviews, 7915 commits, 373 PRs in 4 years 2 months
bitcoin/bitcoin
2779 reviews, 1356 commits, 1206 PRs in 4 years 6 months
BitgesellOfficial/bitgesell
907 commits in 3 years 2 months
Top skills
Score
iot
10
p2p
10
decentralized-applications
10

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5

Pieter Wuille
Engineer at Chaincode Labs
/
United States
Rock Star
13 years of coding experience
TOP CONTRIBUTIONS TO PROJECTS
DeFiCh/ain
2548 commits in 8 years 8 months
sipa/bitcoin
1526 commits, 76 PRs, 2462 pushes in 11 years 9 months
bitcoin/bitcoin
11 releases, 998 reviews, 1158 commits in 8 years 11 months
Top skills
Score
iot
10
cpp17
10
ownership
10

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6

Ava Chow
/
United States
Rock Star
TOP CONTRIBUTIONS TO PROJECTS
achow101/bitcoin-docs-gen
414 commits, 380 pushes, 2 branches in 3 years 4 months
achow101/bitcoin
196 releases, 1 review, 1302 commits in 6 years 1 month
bitcoin/bitcoin
3 releases, 2186 reviews, 1069 commits in 6 years 6 months
Top skills
Score
iot
10
guix
10
django-project
10

#

7

John Newbery
Software Engineer at Axle Energy
/
United Kingdom
Rock Star
11 years of coding experience
TOP CONTRIBUTIONS TO PROJECTS
DeFiCh/ain
1262 commits in 2 years 11 months
bitcoin/bitcoin
1405 reviews, 848 commits, 448 PRs in 5 years 8 months
jnewbery/bitcoin
1 release, 866 commits, 19 PRs in 5 years 5 months
Top skills
Score
elliptic-curve-cryptography
10
ecdh
10
wallet
10

#

8

practicalswift
/
United States
Rock Star
10 years of coding experience
TOP CONTRIBUTIONS TO PROJECTS
airspeedswift/swift-compiler-crashes
664 commits in 10 months
halahup/Swift
2394 commits in 2 years
drk1wi/osx
10044 commits in 9 months
Top skills
Score
iot
10
glibc
10
ethereum
10

#

9

Jon Atack
/
France
Rock Star
11 years of coding experience
TOP CONTRIBUTIONS TO PROJECTS
activerecord-hackery/ransack
11 releases, 768 commits, 68 PRs in 3 years 5 months
jonatack/bitcoin-development
8 reviews, 331 commits, 17 PRs in 3 years 9 months
bitcoin/bitcoin
3110 reviews, 644 commits, 392 PRs in 3 years 10 months
Top skills
Score
multisig
10
nodejs
10
guix
10

#

10

Jonas Schnelli
Software Engineer at Bitcoin Core
/
Switzerland
Rock Star
14 years of coding experience
TOP CONTRIBUTIONS TO PROJECTS
DeFiCh/ain
1504 commits in 6 years 1 month
jonasschnelli/bitcoin
671 commits, 30 PRs, 2249 pushes in 8 years
bitcoin-core/gitian.sigs
109 commits, 113 PRs, 5 pushes in 6 years 3 months
Top skills
Score
curl
10
internet
10
user-agent
10

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11

Ryan Ofsky
Employed at chaincodelabs
/
United States
Rock Star
23 years of coding experience
TOP CONTRIBUTIONS TO PROJECTS
ryanofsky/bitcoin
5530 commits, 2 PRs, 2188 pushes in 6 years 3 months
jamesob/bitcoin
5148 commits in 5 years 10 months
bitcoin/bitcoin
2144 reviews, 532 commits, 342 PRs in 6 years 3 months
Top skills
Score
cryptocurrencies
10
interoperability
10
reference-implementation
10

#

12

Carl Dong
Building Obscura VPN at Bit For Bit Services
/
United States
Rock Star
TOP CONTRIBUTIONS TO PROJECTS
dongcarl/bitcoin
780 commits, 801 pushes, 192 branches in 4 years 2 months
bitcoin/bitcoin
403 reviews, 511 commits, 155 PRs in 5 years 1 month
bitcoinops/bitcoinops.github.io
9 reviews, 85 commits, 1 PR in 2 years 5 months
Top skills
Score
iot
10
rocket
10
homebrew
10

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13

Matthew Corallo
Open Source Engineer at Block/Spiral
/
United States
Rock Star
12 years of coding experience
TOP CONTRIBUTIONS TO PROJECTS
lightningdevkit/rust-lightning
13 releases, 2660 reviews, 3068 commits in 5 years 1 month
lightningdevkit/ldk-garbagecollected
24 releases, 13 reviews, 700 commits in 2 years 6 months
TheBlueMatt/rust-lightning
644 commits, 2755 pushes, 538 branches in 4 years 10 months
Top skills
Score
ios
10
bitcoinj
10
relay
10

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14

Sebastian Falbesoner
/
Austria
Rock Star
15 years of coding experience
TOP CONTRIBUTIONS TO PROJECTS
bitcoin/bitcoin
1262 reviews, 390 commits, 321 PRs in 3 years 5 months
BitgesellOfficial/bitgesell
344 commits in 3 years 2 months
theStack/bitcoin
48 commits, 523 pushes, 568 branches in 3 years 3 months
Top skills
Score
elliptic-curve-cryptography
10
decentralized-applications
10
ecdh
10

#

15

João Barbosa
Bitcoin Core Developer at Self Employed
/
Portugal
Rock Star
TOP CONTRIBUTIONS TO PROJECTS
DeFiCh/ain
724 commits in 4 years 4 months
bitcoin/bitcoin
556 reviews, 377 commits, 375 PRs in 4 years 10 months
promag/bitcoin
151 commits, 1135 pushes, 515 branches in 5 years 5 months
Top skills
Score
iot
10
decentralization
10
decentralized-applications
10

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16

Suhas Daftuar
Co-founder at Chaincode Labs Inc.
/
United States
Rock Star
10 years of coding experience
TOP CONTRIBUTIONS TO PROJECTS
DeFiCh/ain
570 commits in 4 years 11 months
bitcoin/bitcoin
425 reviews, 337 commits, 223 PRs in 7 years 9 months
VeriBlock/vbk-ri-btc
259 commits in 5 years 2 months
Top skills
Score
cryptocurrencies
10
wallet
10
crypto-currency
10

#

17

ThomasV
/
Germany
Rock Star
TOP CONTRIBUTIONS TO PROJECTS
SomberNight/electrum
2465 commits, 1 push in 6 years
spesmilo/electrum
105 reviews, 4438 commits, 1123 PRs in 8 years 2 months
rootSig/electrum-atom
2528 commits in 3 years 8 months
Top skills
Score
ajax
10
hardware-wallet
10
thin
10

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18

Cory Fields
/
United States
Rock Star
14 years of coding experience
TOP CONTRIBUTIONS TO PROJECTS
DeFiCh/ain
1212 commits in 5 years 7 months
theuni/bitcoin
980 commits, 41 PRs, 722 pushes in 9 years 6 months
bitcoin-core/bitcoin-detached-sigs
95 commits, 25 PRs, 88 pushes in 4 years 9 months
Top skills
Score
ios
10
windows-uwp
10
windows-desktop
10

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19

Samuel Dobson
Employed at The University Of Auckland
/
New Zealand
Rock Star
10 years of coding experience
TOP CONTRIBUTIONS TO PROJECTS
DeFiCh/ain
382 commits in 2 years 2 months
bitcoin/bitcoin
216 reviews, 328 commits, 268 PRs in 4 years 6 months
syscoin/syscoin
228 commits in 2 years 7 months
Top skills
Score
cryptocurrencies
10
daemon
10
subgraph
10

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20

Luke Dashjr
CTO & Bitcoin Core developer at Bitcoin Core
/
United States
Rock Star
20 years of coding experience
TOP CONTRIBUTIONS TO PROJECTS
bitcoinknots/bitcoin
5 releases, 20 reviews, 5236 commits in 10 years 5 months
luke-jr/bitcoin
4258 commits, 4 PRs, 1503 pushes in 11 years 6 months
luke-jr/bfgminer
5543 commits, 32 PRs, 94 pushes in 9 years 5 months
Top skills
Score
protected
10
speech-to-text
10
traccar
10

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