Freelance Security Engineers
Freelance Security Engineers
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Abubakar Chan
pro
Lahore, Pakistan
AI Integration & Automation Engineer | Full-Stack Web Apps
$50k+
Earned
65x
Hired
4.9
Rating
126
Followers
Expert
Expert
+2
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AI Integration & Automation Engineer | Full-Stack Web Apps
3
Provider Portal for Healthcare MSO
3
31
5
Magnai | UK Public Affairs
5
61
4
Humoni - secure housing in under 72 hours
4
113
8
Wellbeing Wizard AI
8
177
Security Engineer
(1)
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Raymond Asogwa
pro
Cyprus
Ship your SaaS MVP in weeks - web, mobile, payments.
$25k+
Earned
14x
Hired
4.9
Rating
96
Followers
Expert
Mentor
+1
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Ship your SaaS MVP in weeks - web, mobile, payments.
0
Unexposed – The Document Vault That Can't See Your Documents
0
25
10
Introducing Realm - Your *full-stack Saas Template* for launching your next software product in a day. Available on Contra: Check it out (https://contra.com/products/c7HPzB4W-realm-convex-tan-stack-saa-s-starter) Realm gives you all the plumbing you need so you can focus on your core product feature. It comes with: ✅ Better-auth - Authentication with Org, Member, Roles, Permissions and Invitation. ✅ Convex - Real-time backend with database, file storage . ✅ Stripe and Polar - Payment with lifecycle management for subscription - Choose your preference. ✅ Autosend - Transactional and Marketing email with email templates and webhook setup. ✅ S3 Seam - File storage for private or public file upload to any S3 storage provider of choice - S3, R2, Tigris, etc. ✅ Tanstack Start - Modern web framework - Optimized for Speed, SEO and perfomance. ✅ Dinachi UI - Prebuilt 40+ accessible React UI Component. Live demo at: https://dub.sh/realm-launch
9
10
378
0
Togethr – Turn Community Voice into Product Momentum
0
134
1
Levra . Intelligent Form Builder for Modern Team
1
49
Security Engineer
(1)
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Jason Smyth
pro
Copthorne, UK
Cyber expert specialising in Azure Security Services.
$10k+
Earned
4x
Hired
5.0
Rating
22
Followers
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Cyber expert specialising in Azure Security Services.
0
Microsoft Sentinel & Splunk ES Engineer for up to 6 months
0
7
0
Extended Interview Process for CrowdStrike SIEM Specialist
0
10
0
Setting up and optimising Microsoft Sentinel
0
41
0
Configure SIEM Security Operation using Microsoft Sentinel
0
36
Security Engineer
(1)
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Himanshu Kumar
pro
Bengaluru, India
Turning broken Replit code into secure launch-ready B2B apps
$1k+
Earned
12x
Hired
5.0
Rating
40
Followers
Expert
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Turning broken Replit code into secure launch-ready B2B apps
0
Bug Bounty Hunting & Web App Security Research
0
4
0
Secure Auth & Multi-Tenant System for Industrial SaaS
0
7
2
Workflow Automation for Industrial Services
2
36
1
Real-time Booking Automation Platform
1
17
Security Engineer
(2)
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Dragos Moruz
Timișoara, Romania
Seasoned cybersecurity leader.
5.0
Rating
4
Followers
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Seasoned cybersecurity leader.
2
Firewall Configuration & Rule Review
2
19
1
Security Testing for iOS and Android Mobile Applications
1
16
1
Automated Vulnerability Scanning and Security Assessment
1
11
1
Free Vulnerability Scanning Demo - Instant Security Insight
1
28
Security Engineer
(3)
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Stephen Kisong'e
Nairobi, Kenya
Cyber Security Analyst
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Cyber Security Analyst
1
I conducted an authorized AI security assessment of Lily Cybersecurity 7B to evaluate how effectively a hardened system prompt could resist jailbreak and prompt injection attacks. Using Prompt Fuzzer, I ran 15 attack techniques against the model. The system prompt successfully blocked 8 attempts, including most roleplay and social engineering attacks. The successful bypasses mainly used translated or altered wording to disguise the intent of the request. This project demonstrates why system prompts should be supported by input validation, moderation, output filtering, and continuous AI red team testing.
1
72
0
Designed and documented a secure environment for running Robin, an AI-powered dark web OSINT tool, inside a compartmentalized Qubes OS and Qubes-Whonix setup. The environment was structured to separate research activity, Tor-routed traffic, sensitive credentials, untrusted content, and final reporting. Robin was deployed through Docker inside a dedicated research qube, with traffic routed through sys-whonix and sensitive notes stored separately in an offline vault qube. Disposable qubes were incorporated for opening potentially unsafe links and files. The setup was built around security by compartmentalization rather than relying on a single tool for protection. Particular attention was given to Docker mount restrictions, credential hygiene, network-boundary verification, lawful research scope, and keeping raw research data isolated from personal or client environments. The final result was a repeatable AI-assisted OSINT workflow that supports faster search refinement, result filtering, investigation summarization, and structured reporting while maintaining stronger operational security and clearer separation between collection, analysis, and final output.
0
81
1
A hands-on overview of CAI, an AI-assisted cybersecurity agent framework configured and explored in a Linux terminal environment. The demonstration focuses on how AI agents can be organized and used to support different areas of cybersecurity testing, analysis, and research. The walkthrough covers command-line navigation, available help options, agent selection, model configuration, and the use of specialized security agents. It includes a closer look at DFIR-focused agents for digital forensics and incident response, along with other agent categories designed for bug bounty research, red team activities, network security, reverse engineering, Wi-Fi security, and reporting. The setup also highlights parallel agent configuration, showing how multiple AI-driven security agents can be prepared for structured analysis and task separation. This makes the environment useful for handling different cybersecurity activities in a more organized and scalable way. Overall, the work reflects practical experience with AI-powered security tooling, terminal-based security environments, agent configuration, cybersecurity automation, and ethical AI-assisted security research.
1
136
0
Performed a manual, black-box security assessment of a locally-hosted large language model served through LM Studio, using Burp Suite as the primary testing tool. The engagement began with no prior knowledge beyond a single IP address, mirroring how an external attacker would approach an exposed AI server discovered on a network. Worked through a full discovery-first methodology: confirming the target was live, enumerating the server's exposed endpoints by probing and reading response codes, extracting the loaded model name directly from the API, and proving the expected request format through the server's own error responses rather than assuming it. This reconnaissance phase converted an unknown target into a complete map of its attack surface. With the attack surface established, executed a series of manual techniques through Burp's Repeater and Intruder tools, including prompt injection, system prompt extraction, role and system-message injection, parameter manipulation, error-message disclosure, and authentication testing. Demonstrated additional Burp capabilities relevant to AI systems, including response comparison to prove behavioral changes under attack, randomness testing of server-generated identifiers, and live request tampering to illustrate a man-in-the-middle scenario against AI traffic. Organized all findings into a structured vulnerability map aligned to OWASP LLM risk categories, recording each technique's result, severity, and supporting evidence. Delivered the work as a complete, reproducible, beginner-accessible walkthrough covering environment setup, discovery, exploitation, and reporting.
0
92
Security Engineer
(6)
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Saif Sghaier
Tunis, Tunisia
Smart Contract Audit for Secure Results
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Smart Contract Audit for Secure Results
0
Audit Report: BEING Project
0
17
0
Audit Report: BlindDoge Project
0
9
0
Audit Report: Viku Project
0
8
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Security Engineer
(3)
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Safa Souli
Tunis, Tunisia
UI/UX Designer & Developer
5.0
Rating
13
Followers
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UI/UX Designer & Developer
1
Curatech – Website Design & Development
1
4
0
SecureIVAI
0
3
1
Genesis Robotics: Transforming Productivity
1
5
1
Qatar University - Redesgin
1
252
Security Engineer
(3)
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