Freelance Design Engineers matching "Engineering"
Freelance Design Engineers matching "Engineering"
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Alexandru X
Warsaw, Poland
Polymath | Strategic Innovator | Versatilist
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Polymath | Strategic Innovator | Versatilist
0
Multi-VM Honeypot Network Setup and Log Analysis
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14
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AI Data Extraction and Processing
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21
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Automation System - SEO/Marketing Agency
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25
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Łukasz Bazan
Głogów Małopolski, Poland
Fractional AI Architect | Deterministic GraphRAG Expert
New to Contra
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Fractional AI Architect | Deterministic GraphRAG Expert
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PAY-SENTINEL is a highly deterministic architectural framework designed to eliminate financial leakage in FinTech refund and payment automation pipelines. This document is a redacted portfolio version of the Master Blueprint, demonstrating how to replace probabilistic "AI Wrappers" with hard, stateful logic. The primary achievement of this architecture is the complete eradication of "Semantic Drift" and False Approval Rates (FAR). By weaponizing Pydantic V2 and GraphRAG, the system incarcerates stochastic AI outputs within rigid JSON schemas, forcing 100% SLA and KYC compliance before any transaction API is triggered. [ARCHITECTURAL IP & LIABILITY NOTICE] This document is a redacted sample of a Master Engineering Blueprint. It is intended exclusively for demonstrating architectural methodology and strategic framework design. It does not constitute a completed engineering source of truth for any third-party production environment. All proprietary frameworks and "Zero-Trust Fail-Safe" methodologies contained herein are the exclusive intellectual property of Łukasz Bazan. As a Fractional Architect, I provide the "Engineering Brain." I do not perform direct application coding. Any attempt to implement these patterns by internal teams is done at the Client’s own risk.
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NEXUS-FORGE is a proprietary Tier-0 architecture designed for global supply chains operating on enterprise-grade ERP systems (SAP/Oracle). This document is a redacted portfolio version of the Master Blueprint, which eliminates the risk of "Stochastic Deadlock" and API Exhaustion by implementing an Asynchronous Sidecar pattern. The primary achievement of this architecture is the transformation of unpredictable AI forecasts into a deterministic "Digital Twin" model powered by a Neo4j Knowledge Graph. This enables the prediction of cascading failures and the calculation of a logistical "Blast Radius" with mathematical precision, completely isolating core operational databases from probabilistic AI models. [ARCHITECTURAL IP & LIABILITY NOTICE] This document is a redacted sample of a Master Engineering Blueprint. It is intended exclusively for demonstrating architectural methodology and strategic framework design. It does not constitute a completed engineering source of truth for any third-party production environment. All proprietary frameworks and "Zero-Trust Fail-Safe" methodologies contained herein are the exclusive intellectual property of Łukasz Bazan. As a Fractional Architect, I provide the "Engineering Brain." I do not perform direct application coding. Any attempt to implement these patterns by internal teams is done at the Client’s own risk.
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LEX-SENTINEL is an advanced legal engineering architecture designed for high-stakes Mergers & Acquisitions (M&A). This document is a redacted portfolio version of the Master Blueprint, showcasing how to eliminate the severe legal liabilities (such as "Frankenstein Clauses") generated by probabilistic Naive RAG systems. The primary achievement of this architecture is the deployment of a Spatial Knowledge Graph. Instead of destroying document structure through standard OCR, the system maps exact (X, Y) coordinates of legal PDFs. It guarantees a 100% verifiable, Zero-Paraphrase policy, compressing cross-document liability analysis from weeks to sub-minute, mechanically verifiable audits. [ARCHITECTURAL IP & LIABILITY NOTICE] This document is a redacted sample of a Master Engineering Blueprint. It is intended exclusively for demonstrating architectural methodology and strategic framework design. It does not constitute a completed engineering source of truth for any third-party production environment. All proprietary frameworks and "Zero-Trust Fail-Safe" methodologies contained herein are the exclusive intellectual property of Łukasz Bazan. As a Fractional Architect, I provide the "Engineering Brain." I do not perform direct application coding. Any attempt to implement these patterns by internal teams is done at the Client’s own risk.
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CYBER-AEGIS is a proprietary Tier-0 architecture designed for Enterprise Security Operations Centers (SOC). This document is a redacted portfolio version of the Master Blueprint, showcasing an autonomous SOC Swarm engineered to eliminate Alert Fatigue and probabilistic hallucinations. The primary achievement of this architecture is the mechanical grounding of SIEM logs within a Zero-Trust Knowledge Graph (Neo4j). By utilizing OCSF normalization and a LangGraph Swarm, the system compresses the Mean Time To Detect (MTTD) for complex threats from days to sub-minute resolution, algorithmically rejecting over 90% of false-positive noise before human escalation. [ARCHITECTURAL IP & LIABILITY NOTICE] This document is a redacted sample of a Master Engineering Blueprint. It is intended exclusively for demonstrating architectural methodology and strategic framework design. It does not constitute a completed engineering source of truth for any third-party production environment. All proprietary frameworks and "Zero-Trust Fail-Safe" methodologies contained herein are the exclusive intellectual property of Łukasz Bazan. As a Fractional Architect, I provide the "Engineering Brain." I do not perform direct application coding. Any attempt to implement these patterns by internal teams is done at the Client’s own risk.
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Ari Harrison
pro
San Francisco, USA
AI & ML Engineer
$1k+
Earned
7x
Hired
25
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AI & ML Engineer
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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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215
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Biglabs Consulting-grade template for professional services firms. Manage case studies, articles, services, careers, testimonials, and client consultations with AI-powered analytics. Deploy in minutes, no local setup required. Features Thought Leadership — Publish articles and insights with categories, excerpts, and rich content Service Pages — Present your consulting services with detailed descriptions and feature lists Consultation Booking — Public intake form for prospective clients with scheduling preferences Careers Portal — Post open positions with departments, requirements, benefits, and salary ranges AI Analytics — Claude-powered insights and reporting on your consulting data And more.....
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192
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AiFee A creator donation and product sales platform. Support creators you love with donations and discover unique digital products. Deploy in minutes, no local setup required.
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104
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BioBERT Attention Visualization Tool An interactive web application for visualizing attention mechanisms in BioBERT on biomedical text. This tool helps researchers and practitioners understand how transformer models process biomedical language by providing intuitive visualizations of attention patterns.
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104
ML Engineer
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Pavlo Krasnytsia
Lviv, 79000
Tech Leader | AI, Blockchain & Technology Architect
New to Contra
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Tech Leader | AI, Blockchain & Technology Architect
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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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171
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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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162
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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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123
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Developed AI-powered semantic search systems using Weaviate as the core vector database. Designed hybrid search (keyword + vector) architecture and integrated large language models for contextual retrieval and summarization. Optimized schema design, embedding pipelines, and indexing strategies to support large-scale document corpora and conversational AI systems.
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115
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Raymond Asogwa
pro
Cyprus
Ship your SaaS MVP in weeks - web, mobile, payments.
$10k+
Earned
14x
Hired
4.9
Rating
87
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Expert
Mentor
+1
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Ship your SaaS MVP in weeks - web, mobile, payments.
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Togethr – Turn Community Voice into Product Momentum
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127
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Unexposed – The Document Vault That Can't See Your Documents
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21
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Next.js Website & Contentful Optimization
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39
2
Education Platform Website Development
1
2
33
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(5)
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(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
9
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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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20
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GA4 Migration and Multi-Platform Analytics Setup
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11
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Subscription Recovery Integration with Vindicia
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9
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Architecture Roadmap for Subscription Management Overhaul
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10
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Platform Engineer
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(2)
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Usama Idrees
Islamabad, Pakistan
Cloud · DevOps · AI/ML · Email · Marketing Expert
$5k+
Earned
11x
Hired
5.0
Rating
31
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Cloud · DevOps · AI/ML · Email · Marketing Expert
$501 earned
2
IT/AI Infrastructure Support
2
28
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Serverless Architecture for Scalability & Efficiency at VMLA
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31
2
Legacy System Scalable and Secure Modernization
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23
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Implementing DevOps Practices; Enterprise-Level Transformatios
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61
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(4)
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(1)
Data Engineer
(1)
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Ali Shan
pro
London, UK
Full-Stack & AI Dev | TypeScript, Next.js, React, Node
$25k+
Earned
4x
Hired
5.0
Rating
59
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Full-Stack & AI Dev | TypeScript, Next.js, React, Node
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Containerized Automated Quality Control Pipeline
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5
5
Landing page for an ai company.
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5
499
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Langflow Multi-Agent Research Framework Development
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20
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Full Stack Web App Build
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5
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