Freelance Fullstack Engineers matching "Engineering"Freelance Fullstack Engineers matching "Engineering"

Search results for 'Engineering'

ProjectsPeople

Results that are similar to your search

Similar results

Ali Shan's avatar
Ali Shan
proLondon, UK
Full-Stack & AI Dev | TypeScript, Next.js, React, Node
$25k+
Earned
4x
Hired
5.0
Rating
59
Followers
Full-Stack & AI Dev | TypeScript, Next.js, React, Node
Cover image for Containerized Automated Quality Control Pipeline
Containerized Automated Quality Control Pipeline
0
5
Cover image for Landing page for an ai
Landing page for an ai company.
1
5
499
Cover image for Development of Segue macOS Focus App
Development of Segue macOS Focus App
1
7
Cover image for Langflow Multi-Agent Research Framework Development
Langflow Multi-Agent Research Framework Development
0
20
Fullstack Engineer(3)
Systems Engineer(2)
Platform Engineer(1)
Software Engineer(1)
ML Engineer(1)
Ari Harrison's avatar
Ari Harrison
proSan Francisco, USA
AI & ML Engineer
$1k+
Earned
7x
Hired
25
Followers
AI & ML Engineer
Cover image for AI Groceries An AI-powered online grocery
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.
1
185
Cover image for Biglabs Consulting-grade template for professional services
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.....
0
192
Cover image for AI Courses An online course marketplace
AI Courses An online course marketplace with Claude AI-powered learning recommendations, instructor analytics, and platform management. Deploy in minutes, no local setup required. Features Course Marketplace — Browse, search, and filter courses by category, price, and level Student Dashboard — Track enrolled courses, progress, wishlist, and messaging Instructor Portal — Create courses with structured sections and lessons, manage content Admin Panel — Moderate courses (approve/reject), manage users, configure platform fees Claude AI Integration — Personalized learning recommendations, instructor analytics, platform health reports And more......
1
1
86
Cover image for Markey A multi-vendor marketplace connecting artisan
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.
0
101
Fullstack Engineer(5)
ML Engineer(3)
UX Engineer(2)
Data Engineer(2)
Software Engineer(1)
Pavlo Krasnytsia's avatar
Pavlo Krasnytsia
Lviv, 79000
Tech Leader | AI, Blockchain & Technology Architect
New to Contra
Tech Leader | AI, Blockchain & Technology Architect
Cover image for Built a secure key management
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.
1
171
Cover image for Created a real-time blockchain data
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.
1
162
Cover image for Developed a real-time on-chain threat
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.
1
123
Cover image for Botpress | The Complete AI Agent Platform
Botpress | The Complete AI Agent Platform
1
6
Fullstack Engineer(9)
Security Engineer(2)
Systems Engineer(1)
ML Engineer(1)
Data Engineer(1)
Ugo Chukwu's avatar
Ugo Chukwu
proDubai - United Arab Emirates
Automation Engineer - n8n + Supabase + Codex, OpenClaw 🚀
$10k+
Earned
6x
Hired
5.0
Rating
43
Followers
BUILDSHIP_EXPERT

expert

Automation Engineer - n8n + Supabase + Codex, OpenClaw 🚀
Cover image for IOS Risk Data Foundry — Domain-Specific Financial Risk AI
IOS Risk Data Foundry — Domain-Specific Financial Risk AI
1
7
Cover image for ML Evaluation Infrastructure for Fraud Detection
ML Evaluation Infrastructure for Fraud Detection
0
4
Cover image for UGC Video Prompt Automation System
UGC Video Prompt Automation System for Ad SaaS Designed and implemented a prompt-generation system that converts structured ad scripts into best-in-class, scene-level video generation prompts for UGC-style TikTok/Reels ads. The workflow ingests Agent 2 outputs (concept, scenes, hooks, body, CTA, product positioning) and applies reusable prompt templates and logic to enforce character consistency, natural speech patterns, realistic lighting/camera imperfections, and casual, native social media aesthetics. Delivered a production-ready specification for Agent 3 integration, a reusable prompt library, and a fully generated UGC-style video produced end-to-end with this system.
1
163
Cover image for Multi-Processor Payment Reconciliation Automation
Multi-Processor Payment Reconciliation Automation
1
20
ML Engineer(3)
Fullstack Engineer(2)
Software Engineer(2)
Data Engineer(2)
Bree Sharp's avatar
Bree Sharp
proKentucky, USA
Full-Stack Engineer · AI Apps + Custom Programs · Python
New to Contra
Full-Stack Engineer · AI Apps + Custom Programs · Python
Cover image for Revolutionize SEO Audits with New Schema & Sitemap Tools Suite
Tool #3 is live. Here's what I built and why. Most SEO tools have the same problem: they tell you a hundred things are wrong and leave you guessing which ones actually matter. I started building focused tools instead — one job, one clear answer, no noise. Tool #3 shipped this week, which means the suite is complete. Here's what's in it. 🔍 Schema Markup Audit & Generator bree-sharp.com/tools/schema-generator/ (http://bree-sharp.com/tools/schema-generator/) The gap I kept running into in audits: clients had no structured data, knew they should, and had no idea how to fix it without hiring someone. Existing tools would confirm the markup was missing. Great. Now what? This tool goes further. Paste a URL, choose your CMS, and it audits what schema is present, explains what's missing and why it matters, and generates ready-to-paste JSON-LD with CMS-specific implementation steps. The recommendation layer runs on the Claude API, which means the output is actually reasoned rather than template-dumped. There's a usage ladder — anonymous, email-gated, and a small paid tier via Stripe for heavy use. The free version is genuinely useful. The paid version covers API costs. Stack: Astro, Cloudflare Workers, Claude API, Stripe. 🤖 Robots.txt Checker & URL Tester bree-sharp.com/tools/robots-txt-checker/ (http://bree-sharp.com/tools/robots-txt-checker/) The single most frustrating thing to explain in a client call: "Your robots.txt is blocking Googlebot from that page." "Which rule?" "...I have to go check." This tool answers that question in about five seconds. Enter a URL and a crawler (Googlebot, Bingbot, image crawlers, or wildcard). It fetches the robots.txt, parses the user-agent groups, applies actual allow/disallow matching logic, and tells you exactly which line is responsible for the result — in plain English. It also extracts sitemap declarations from the file, which is useful context that most checker tools skip. Stack: Astro, Cloudflare Workers. 🗺️ Sitemap Validator bree-sharp.com/tools/sitemap-validator/ (http://bree-sharp.com/tools/sitemap-validator/) A sitemap can be perfectly valid XML and still be bad SEO. Redirect chains listed as current URLs. Noindex pages submitted for crawling. Paths blocked by robots.txt. None of that shows up if you only check whether the XML parses. This validator checks discovery and quality. It detects whether you're dealing with a URL set or a sitemap index, counts entries, validates key fields, and samples listed URLs for HTTP status, redirects, noindex tags, canonical mismatches, and robots.txt conflicts. It's built for migrations, post-launch reviews, and cleanup projects — situations where you actually need to know what's in the sitemap, not just that it exists. Stack: Astro, Cloudflare Workers, XML parsing. The suite as a whole Robots.txt + sitemap validator together answer a question I hit constantly in technical audits: what is the site asking crawlers to find, what are crawlers actually allowed to request, and where do those two signals disagree? Each tool is free at bree-sharp.com/tools/ (http://bree-sharp.com/tools/) — no account required to start. Case studies with build details and product decisions behind each one are at bree-sharp.com/case-studies/ (http://bree-sharp.com/case-studies/) if you want to see the engineering rationale.
1
107
Cover image for Sitemap Validator Tool Build
Sitemap Validator Tool Build
0
2
Cover image for Robots.txt Checker Tool Build
Robots.txt Checker Tool Build
0
1
Cover image for Scalable Dealer Locator Development for US & Canada on WordP...
A North American animal nutrition brand needed a dealer locator that could scale from 9 Canadian provinces to all 50 US states without bolting on a third-party SaaS map plugin. The existing implementation was a static page with broken pin rendering and no geographic structure underneath it. Architecture: Custom dealer post type backed by a hierarchical dealer_cat taxonomy, structured so future region-level grouping (Northeast US, Mountain West, etc.) wouldn't require schema changes down the line. CMB2 fields handle all dealer metadata. Front-end finder UI integrated directly into the existing custom theme — no plugin UI layer. Deploy pipeline: Full Pantheon Dev → Test → Live SFTP workflow across all environments before production push. Stack at a glance: - CMS: WordPress on Pantheon - Custom: Post type + hierarchical taxonomy (CMB2) - Theme: Custom theme integration - Deploy: Pantheon multi-environment SFTP Skills: WordPress · Custom Post Types · Taxonomies · CMB2 · Pantheon · PHP · Custom Theme Development · Geographic Data Structure · WordPress Development
2
94
UX Engineer(4)
Fullstack Engineer(3)
Software Engineer(2)
Data Engineer(2)
Łukasz Bazan's avatar
Łukasz Bazan
Głogów Małopolski, Poland
Fractional AI Architect | Deterministic GraphRAG Expert
New to Contra
Fractional AI Architect | Deterministic GraphRAG Expert
Cover image for PAY-SENTINEL is a highly deterministic
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.
0
51
Cover image for NEXUS-FORGE is a proprietary Tier-0
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.
0
78
Cover image for LEX-SENTINEL is an advanced legal
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.
0
101
Cover image for CYBER-AEGIS is a proprietary Tier-0
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.
0
92
Data Engineer(4)
Security Engineer(3)
Systems Engineer(2)
ML Engineer(1)