Freelance Platform Engineers matching "Engineering"
Freelance Platform Engineers matching "Engineering"
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Pavlo Krasnytsia
pro
Lviv, 79000
Tech Leader | AI, Blockchain & Technology Architect
New to Contra
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Tech Leader | AI, Blockchain & Technology Architect
1
Built a secure key management and programmable policy platform for Web3 infrastructure, enabling teams to enforce transaction rules, automate approval logic, and protect sensitive signing workflows using hardware-backed controls. This project signals senior-level expertise in security architecture, backend systems, and blockchain operations.
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126
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Created a real-time blockchain data platform that streams on-chain data into developer and analytics workflows with low-latency pipelines, indexing, and database delivery. This project showcases strong full-stack architecture, data engineering, and blockchain infrastructure capabilities for modern financial applications.
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124
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Developed a real-time on-chain threat detection platform that monitors smart contracts, wallets, governance actions, and protocol activity to surface emerging attacks before damage occurs. This project demonstrates strong blockchain security engineering, alerting architecture, and production-grade risk monitoring at scale.
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106
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Contributed to the development and scaling of a collaborative knowledge management SaaS platform designed for modern teams. Focused on improving real-time collaboration, search performance, and document organization workflows. Worked on enhancing backend APIs, optimizing database queries, and improving frontend performance for large document trees and permission-based access control. Helped improve system reliability and scalability for distributed teams managing thousands of documents.
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86
Fullstack Engineer
(9)
Security Engineer
(2)
Systems Engineer
(1)
Data Engineer
(1)
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Cory Schmaltz
Denver, USA
Full Stack Engineer & AI System Architect & Network Engineer
New to Contra
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Full Stack Engineer & AI System Architect & Network Engineer
0
Obsidian Network Architect
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11
0
NLP pipeline for Federal Document Processing
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12
0
Logistics System for US Army
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14
0
AI-Powered Automatic Marketing System
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19
Fullstack Engineer
(1)
Security Engineer
(1)
Systems Engineer
(1)
Data Engineer
(1)
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Raymond Asogwa
pro
Cyprus
Full stack AI Engineer - Design, Frontend, Backend
$10k+
Earned
13x
Hired
4.9
Rating
76
Followers
Expert
Mentor
+1
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Full stack AI Engineer - Design, Frontend, Backend
0
Unexposed – The Document Vault That Can't See Your Documents
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5
0
Togethr – Turn Community Voice into Product Momentum
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115
2
Education Platform Website Development
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2
30
0
Stripe Subscription Integration for Agencies and Vendors
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25
Design Engineer
(6)
Fullstack Engineer
(5)
Security Engineer
(1)
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Igor Khatybov
pro
Huntsville, USA
Clean up tech messes. Plan for growth. No drama.
$50k+
Earned
1x
Hired
5.0
Rating
7
Followers
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Clean up tech messes. Plan for growth. No drama.
0
From AWS to WPEngine: A Clean Migration Blueprint
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17
0
Architecture Roadmap for Subscription Management Overhaul
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10
0
Subscription Recovery Integration with Vindicia
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5
0
Self-Service Portal for Growing Hosting Provider
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7
Platform Engineer
(2)
Systems Engineer
(2)
Data Engineer
(2)
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Abubakar Chan
pro
Lahore, Pakistan
AI Integration & Automation Engineer | Full-Stack Web Apps
$50k+
Earned
63x
Hired
4.9
Rating
82
Followers
Expert
Expert
+2
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AI Integration & Automation Engineer | Full-Stack Web Apps
4
LynxFlowHealth
4
134
1
Lahore Runners | Running Club Site
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26
0
Personal Portfolio
0
115
0
Gravity Studio Portfolio site
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38
Fullstack Engineer
(5)
Design Engineer
(1)
Security Engineer
(1)
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Ali Shan
pro
London, UK
Full StackDev | MVP Builder for SAAS | AI Agents
$5k+
Earned
4x
Hired
5.0
Rating
44
Followers
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Full StackDev | MVP Builder for SAAS | AI Agents
0
Predictive Analytics Platform & ML Service
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6
0
Containerized Automated Quality Control Pipeline
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5
0
ChiroChat AI Chatbot Development
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23
0
Miles & More | AI-Powered Travel Planning App Development
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27
Fullstack Engineer
(3)
Platform Engineer
(1)
Systems Engineer
(1)
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Ari Harrison
pro
San Francisco, USA
AI & ML Engineer
$1k+
Earned
7x
Hired
18
Followers
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AI & ML Engineer
0
AI Groceries An AI-powered online grocery delivery platform built with Next.js 15, React 19, Supabase, Claude API, and Stripe. Designed around "The Harvest Table" philosophy -- abundant, warm, and grounded in real food provenance.
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99
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AI Vested An AI-powered investment platform with Claude AI integration. Deploy in minutes, no local setup required.
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132
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Markey A multi-vendor marketplace connecting artisan sellers with collectors. Beautiful dark-first design with Stripe Connect split payments, AI-powered product descriptions, and full admin controls. Deploy in minutes, no local setup required.
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79
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ClaudeHub Dashboard A modern, full-featured dashboard with Claude AI integration. Deploy in minutes, no local setup required. Features: Claude AI Integration - Get intelligent insights and analysis Interactive Charts - Bar, line, pie, and area charts Real-time Dashboard - Stats, metrics, and KPIs at a glance User Authentication - Secure login with Supabase Auth Demo Mode - Works instantly without any configuration Responsive Design - Desktop, tablet, and mobile ready
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88
Fullstack Engineer
(5)
Data Engineer
(2)
Design Engineer
(1)
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Lachezar Atanasov
Sofia, Bulgaria
Enjoying building innovative web/mobile apps with AI.
$5k+
Earned
1x
Hired
9
Followers
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Enjoying building innovative web/mobile apps with AI.
1
Review-First Monitoring for AI Platform Changes
1
3
1
AI Freelancer Ops: Backend-First SaaS on Supabase + Stripe
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20
1
PMF Brainstormer: AI Automation System in n8n
1
3
1
HapticAI — The Copilot for Reality
1
1
Fullstack Engineer
(2)
Systems Engineer
(1)
Data Engineer
(1)
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