Top Blockchain Security freelancers

49 freelancers list Blockchain Security on Upwork.

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Showing 49 of 49Data updated Nov 7

# Freelancer		SinceMember since
Mridul M. 🇮🇳🇮🇳 AI/ML Developer \| LLM, RAG, Computer Vision, Rust & Automation Expert	$3k↑ 15%	Dec 2020Dec 2, 2020
Asad U. 🇵🇰🇵🇰 Senior AI & Blockchain Engineer \| Web3 Smart Contract dApps \| AI Agent	$2k↓ 22%	May 2022May 7, 2022
Muhammad S. 🇵🇰🇵🇰 QA Engineer & Penetration Tester \| Web, API & Automation	$1k↓ 23%	Sep 2020Sep 18, 2020
4 Himanshu N. 🇮🇳🇮🇳 Blockchain Developer, Solidity, DApps, DeFi, NFT, Web3/Solana/Ethereum	$1k↑ 3%	Nov 2015Nov 17, 2015
5 Karim G. 🇳🇱🇳🇱 Expert Software Engineer \| AI, SaaS, CTO \| 25m Raised	$865↓ 1%	Aug 2016Aug 3, 2016
6 Muhammad S. 🇵🇰🇵🇰 Cybersecurity \| Penetration Testing \| Security Audits \| Cryptography	$865↑ 29%	Aug 2022Aug 21, 2022
7 Mohammed A. 🇮🇳🇮🇳 Blockchain Development, Cryptocurrency & Blockchain Developer	$655↑ 5%	Oct 2022Oct 27, 2022
8 Siobhan A. 🇺🇸 NewNew🇺🇸 Information Security \| File Restoration \| Hacked System Response	$430↓ 25%	Apr 2026Apr 10, 2026
9 Anjanay R. 🇮🇳🇮🇳 Fintech / FullStack Blockchain Dev \| Smart Contract Auditor	$420↓ 1%	Dec 2019Dec 8, 2019
10 Adeel K. 🇵🇰🇵🇰 Blockchain Developer \| AI Web3 Apps \| Smart Contracts \| EVM & Solana	$412↑ 24%	May 2021May 20, 2021

Freelancer	MRR	Member since
11 Timothy Christian S. 🇦🇺🇦🇺 M365 & Entra Hardening \| Web & API Pentester \| Encripti	$203↓ 1%	Oct 2020Oct 21, 2020
12 Rajdeep S. 🇮🇳🇮🇳 Blockchain, Backend, Devops Engineer	$31↓ 1%	Sep 2025Sep 15, 2025
13 Nauman R. 🇬🇧🇬🇧 Full-Stack Blockchain Developer \| Solidity \| FunC \| Solana \| Telegram	$0–	Mar 2024Mar 7, 2024
14 Pushpendra P. 🇮🇳🇮🇳 Blockchain & Full Stack Developer \| Web3, dApps, React, Solidity,	$0–	Jun 2025Jun 30, 2025
15 Adebayo R. 🇳🇬🇳🇬 Security Engineer \| Secure Code Review & Penetration Testing \| Python	$0–	Feb 2023Feb 4, 2023
16 Ankit A. 🇮🇳🇮🇳 Blockchain & Full Developer \| Web3, Solidity, DeFi, Smart Contract	$0–	Jan 2020Jan 2, 2020
17 Phuong D. 🇻🇳🇻🇳 Fullstack Blockchain Developer	$0–	May 2024May 20, 2024
18 Artem P. 🇨🇦🇨🇦 Digital Forensics, Cryptocurrency Investigations, Cybersecurity Audits	$0–	Mar 2024Mar 28, 2024
19 Sean M. 🇺🇸🇺🇸 Crypto Investigations \| Asset Tracing \| OSINT	$0–	Jan 2024Jan 1, 2024
20 Zakaria B. 🇩🇿🇩🇿 Rust/Move Developer	$0–	May 2021May 18, 2021

Freelancer	MRR	Member since
21 Vincent O. 🇰🇪🇰🇪 DevSec \| AI & Security Automation	$0–	Jun 2021Jun 1, 2021
22 cyrus n. 🇧🇪🇧🇪 Fullstack Blockchain / Web3 Developer (Solidity, Rust, React, Node.js)	$0–	Sep 2015Sep 21, 2015
23 Hussain A. 🇵🇰🇵🇰 Experienced Blockchain \| DEX \| Defi \| Smart Contract Developer	$0–	Mar 2018Mar 28, 2018
24 Yaroslav T. 🇵🇱🇵🇱 AI Developer & Forward Deployed Engineer \| Full-Stack, Claude, Web3	$0–	Apr 2014Apr 26, 2014
25 Mason G. 🇺🇸🇺🇸 Business Automation Specialist	$0–	May 2022May 12, 2022
26 Lekha S. 🇮🇳🇮🇳 Blockchain Development, Cryptocurrency & Blockchain Developer	$0–	Jul 2021Jul 6, 2021
27 Elisha B. 🇹🇿🇹🇿 Blockchain \| Smart Contracts \| Solidity \| Python Developer	$0–	Sep 2020Sep 2, 2020
28 Yekkali Prem S. 🇮🇳🇮🇳 Expert Ethereum Dev \| Smart Contract Auditor \| Blockchain Security	$0–	Aug 2024Aug 31, 2024
29 Vikram R S. 🇮🇳🇮🇳 Web3 & Blockchain Development Agency \| Smart Contracts, DeFi & FinTech	$0–	Nov 2009Nov 16, 2009
30 Endrit A. 🇦🇱🇦🇱 Project Manager\|Business Developer	$0–	Oct 2019Oct 2, 2019

Freelancer	MRR	Member since
31 Paula C. 🇪🇸🇪🇸 Trusted Web3 Expert \| Profitable & Secure Custom Dapps	$0↓ 100%	May 2025May 19, 2025
32 Shashi Shekhar J. 🇮🇳🇮🇳 Cryptography Consultant \| PQC Migration & Development \| ZK Proofs \| MP	$0–	Feb 2024Feb 20, 2024
33 wei cheng wilson K. 🇺🇸🇺🇸 AI Chatbot Developer with Smart Contract and dApp specialization	$0–	Mar 2018Mar 6, 2018
34 Mihirsinh P. 🇮🇳🇮🇳 Claude Code Expert \| AI Agents, MCP, RAG \| Solidity & Trading Bots	$0↓ 100%	Jul 2021Jul 18, 2021
35 Lucky N. 🇳🇬🇳🇬 Blockchain Developer \| AI Engineer \| AI Automation and Agents	$0–	Oct 2020Oct 26, 2020
36 Rekha K. 🇮🇳🇮🇳 Blockchain Developer, Blockchain Cryptocurrency Developer & Consultant	$0–	Jul 2021Jul 5, 2021
37 Fawad A. 🇵🇰Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.🇵🇰 Technical Writer - AI, Cloud, Cybersecurity	≈$0–	Sep 2022Sep 14, 2022
38 Chibueze A. 🇳🇬Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.🇳🇬 Blockchain & Solidity Engineer \| Smart Contract Security & Audits	≈$0–	Jan 2022Jan 7, 2022
39 Sara S. 🇵🇰Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.🇵🇰 Expert Presale DApp/website Developer \| BSC, ETH, Solana	≈$0–	Mar 2023Mar 10, 2023
40 Ankur K. 🇮🇳Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.🇮🇳 Full Stack Developer I Blockchain Engineer (Expert-Vetted) \| dApps I	≈$0–	Dec 2019Dec 11, 2019

Freelancer	MRR	Member since
41 Faiza M. 🇵🇰Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read May 28, 2026.🇵🇰 Academic Writer	≈$0–	May 2017May 14, 2017
42 Muhammad A. 🇵🇰Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.🇵🇰 Penetration Testing Expert (WebApp, API, Network & Cloud Security)	≈$0–	Aug 2016Aug 8, 2016
43 Youssef B. 🇹🇳Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.🇹🇳 Full Stack Blockchain Developer & Smart Contract Auditor	≈$0–	Jul 2022Jul 2, 2022
44 ARKAPRAVA S. 🇮🇳Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Sep 25, 2026.🇮🇳 Digital Marketing Expert \| SEO, Content & Growth Strategy	≈$0–	Oct 2022Oct 14, 2022
45 Aabhas S. 🇮🇳Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.🇮🇳 Blockchain Security Specialist \| Pentesting & Cybersecurity Expert	≈$0–	Aug 2020Aug 2, 2020
46 Jarmo V. 🇳🇱Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.🇳🇱 AI Automation Engineer \| AI Agents, RAG & API Integration	≈$0–	May 2022May 12, 2022
47 Bryan P. 🇺🇸Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.🇺🇸 Senior Ruby on Rails software developer building production-ready apps	≈$0–	Jan 2015Jan 13, 2015
48 Gleb D. 🇳🇱Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.🇳🇱 Software Engineer / Web3 / Blockchain	≈$0–	Dec 2021Dec 1, 2021
49 Ritam G. 🇦🇪Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.🇦🇪 Blockchain \| Web3 \| Full Stack Development \| UI/UX \| Product Architect	≈$0–	Jan 2019Jan 6, 2019

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