Freelance Backend Engineers in County DublinFreelance Backend Engineers in County Dublin
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Denys Kucher's avatar
Denys Kucher
Dublin, Ireland
Independent AI Automation Architect | n8n & LLM
New to Contra
Independent AI Automation Architect | n8n & LLM
Cover image for Project Title: SINDIKAT: Algorithmic API
Project Title: SINDIKAT: Algorithmic API Engine Description: Built a fully automated quantitative engine running entirely on n8n. This system bypasses basic automation limitations by integrating dynamic mathematical risk filters (EV) and automated PnL feedback loops. The core achievement of this architecture is the seamless execution of complex JavaScript logic and mathematical modeling without API authorization drop-offs. It operates as a deterministic, high-speed pipeline designed for pure mathematical execution and strict risk management.
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Cover image for Project Title: Quantum Prism: Autonomous
Project Title: Quantum Prism: Autonomous Hardware Diagnostics AI Description: Designed an autonomous multi-agent AI system that diagnoses complex laptop motherboard faults. The architecture uses Claude Code as the terminal orchestrator, managing sub-agents in self-hosted n8n via the Model Context Protocol (MCP). Instead of generic AI wrappers, this system relies on a Python FastAPI microservice for computer vision (analyzing boardviews/schematics) and a Qdrant Vector DB for RAG-based hardware theory. It enforces a strict, zero-hallucination diagnostic cycle based on exact physical values (Volts/Ohms/Pins) to navigate from a raw symptom to a precise component verdict.
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Cover image for You're a solo entrepreneur and just got 47 emails. 47 potent...
You're a solo entrepreneur and just got 47 emails. 47 potential clients. 47 opportunities. And only two hands. Do you pick the two that look best? THE SCALING PROBLEM NOBODY TALKS ABOUT When your business grows, you hit a wall: 🔴 One brain, three channels (Telegram, Email, DM, Messenger...) Client writes at 2 PM, you see it at 10 PM. They've already bought from a competitor. 🔴 Diagnosis is the bottleneck Client describes their problem vaguely. Five emails back and forth. They get tired before you get an answer. 🔴 You're guessing blind Which questions convert? What's the average deal size? Which objections are deal-killers? You don't know — just intuition from 30 deals. The obvious next step: hire someone. But let's do the math: SDR/BDR salary → €2-3k/month Bureaucracy (contracts, taxes) Vacation, sick days Retraining every time they leave You're bleeding €25-40k a year plus 6 months of lost momentum. THERE'S ANOTHER WAY I'm building ALEK. Not a person. An agent. What it does: All 47 emails get a response in 5 seconds. 24/7. No weekends. No coffee breaks. Diagnosis works like a 10-year veteran. Asks the right questions. Sees the context. Requests the details that matter. Deal closes in 2 exchanges instead of 7. Results after three months: ✅ Conversion +35% ✅ Sales cycle -60% ✅ CAC cut in half ✅ Zero salaries And here's the thing? Every conversation is data. After a month, Alek knows what works. After three months, Alek closes deals better than I do. WHY NOW AI agents stopped being sci-fi. They're production tools. If you're a solo founder — this is your window. Before, scaling = hiring. It was expensive and risky. Now, scaling = configure bot + time. In 2-3 weeks of setup, you get what used to take 6 months of hiring. I'm not saying this replaces people. I'm saying this replaces the expensive mistake. If you're drowning in scaling one person deep, let's talk. I can help you build your Alek. #AI #Automation #SoloPreneur #Scaling #ProductLed
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Cover image for ARIA (Automated Response & Influence
ARIA (Automated Response & Influence Agent) Project Title: ARIA: Multi-Platform AI Influence Engine & In-Game RAG Description: Designed ARIA, an autonomous multi-agent system built to monitor, analyze, and engage with target communities across Discord, Telegram, Reddit, and web forums. The core architecture runs on a dual-LLM pipeline: Grok drafts highly contextual responses by pulling conversational history from a PostgreSQL database, while Claude acts as an overarching moderation agent to ensure brand safety and quality before publication. Killer Feature (In-Game RAG): Beyond social media, I engineered a direct in-game integration for an MMORPG environment. Players can ping the AI directly in the game chat. A webhook sends the character's live context (level, zone, class) to the FastAPI backend, where a pgvector-powered RAG pipeline searches the server's knowledge base. Grok formulates the answer, Claude verifies its safety, and the response is instantly delivered back to the player in-game.
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Backend Engineer(2)
Abdul Ghafoor's avatar
Abdul Ghafoor
proDublin, Ireland
Cloud & AI Platform Engineer | Node.js + AWS | EdTech SaaS
36
Followers
Cloud & AI Platform Engineer | Node.js + AWS | EdTech SaaS
Cover image for Ellucian Cross Registration — Multi-Institution SaaS
Cross Registration
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Cover image for Ellucian Journey — AI-Powered Career Pathways Platform
Ellucian Journey — AI-Powered Career Pathways Platform
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Cover image for Chemishield — Chemical Waste Management Platform
Chemishield — Chemical Waste Management Platform
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Cover image for TEVA Pharmaceuticals — Smart Inhaler iOS App
TEVA Pharmaceuticals — Smart Inhaler iOS App
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Backend Engineer(1)
Bartek Baran's avatar
Bartek Baran
Dublin, Ireland
Fractional CTO | Full-Stack Builder | MVP to Scale
9
Followers
Fractional CTO | Full-Stack Builder | MVP to Scale
Cover image for Streamlining Deployment Processes at Northflank
Streamlining Deployment Processes at Northflank
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Cover image for ​Parella: Contactless Digital Menus for Restaurants
​Parella: Contactless Digital Menus for Restaurants
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Cover image for Pharma-Native Digital Twin & Real-Time Analytics Platform
Pharma-Native Digital Twin & Real-Time Analytics Platform
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Backend Engineer(1)
Joao Melo's avatar
Joao Melo
Dublin, Ireland
Scalable Solutions with React & Python Expertise
11
Followers
Scalable Solutions with React & Python Expertise
Cover image for Automated Price Scraper, spreadsheet & WhatsApp Notifier
Automated Price Scraper, spreadsheet & WhatsApp Notifier
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Cover image for EN] Enterprise Medical Management Platform
EN] Enterprise Medical Management Platform | [BR] Gestão Médica de Alta Escala [EN] Full-stack platform built for high-volume clinics. I eliminated 80% of scheduling conflicts and administrative bottlenecks using Next.js and Node.js+Prisma. Engineered a scalable PostgreSQL architecture with automated notifications, allowing the clinic to double its medical staff without increasing the administrative team. [BR] Plataforma Full-Stack arquitetada para clínicas de alto volume. Reduzi 80% dos conflitos de agenda e eliminei gargalos administrativos utilizando Next.js e Node.js+Prisma. Arquitetura escalável no PostgreSQL com notificações automatizadas, permitindo dobrar o corpo médico sem aumentar o time de recepção. 🛠️ Skills: Next.js, Node.js, PostgreSQL, TypeScript, API Integration.
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Cover image for [EN] High-Conversion React E-Commerce |
[EN] High-Conversion React E-Commerce | [BR] E-Commerce React de Alta Conversão 📝 Description: [EN] E-commerce architected for extreme performance and conversion. Migrating to React/TypeScript resulted in 1.2s load times (down from 5.8s), a 120% increase in online sales, and a drop in cart abandonment from 75% to 32% via optimized client-side caching and responsive UI. [BR] E-commerce arquitetado para conversão extrema e performance. A migração para React/TypeScript resultou em carregamento em 1.2s (antes 5.8s), aumento de 120% nas vendas e redução de 75% para 32% no abandono de carrinho através de cache otimizado (React Query) e UI responsiva. 🛠️ Skills: React.js, TypeScript, Tailwind CSS, MongoDB, UI / UX.
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Cover image for [EN] Intelligence Web Scraping Engine
[EN] Intelligence Web Scraping Engine | [BR] Motor de Web Scraping & Inteligência 📝 Description: [EN] High-complexity data extraction bypassing advanced WAF protections (Cloudflare/DataDome). Engine built with Node.js and Puppeteer Stealth, featuring an IP rotation system. Extracts massive datasets and synchronizes autonomously with Google Sheets via AWS for market intelligence. [BR] Extração de dados de alta complexidade com contorno de proteções WAF (Cloudflare/DataDome). Motor construído com Node.js + Puppeteer Stealth e sistema de rotação de rede. Realiza raspagem massiva e sincronização automatizada com Google Sheets via AWS para decisões de inteligência de mercado. 🛠️ Skills: Web Scraping, Node.js, Data Processing, JavaScript, Automation.
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Backend Engineer(1)
Sebastian Diaz's avatar
Sebastian Diaz
Dublin, Ireland
Web Developer, Frontend & Backend Development
Web Developer, Frontend & Backend Development
Cover image for Junngla spa
Junngla spa
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Cover image for Sebastian’s Portfolio
Sebastian’s Portfolio
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Cover image for Vixonic - Las pantallas que nos unen - Comunicación interna
Vixonic - Las pantallas que nos unen - Comunicación interna
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11
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Backend Engineer(2)
Zana Aziz's avatar
Zana Aziz
Dublin, Ireland
🌍 Crafting Diverse Web & AI Solutions 🚀
🌍 Crafting Diverse Web & AI Solutions 🚀
Cover image for Web apps galore
Web apps galore
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Cover image for AI-Driven Chatbot
AI-Driven Chatbot
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Cover image for Cross Platform Desktop App
Cross Platform Desktop App
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Backend Engineer(1)
Muhammad Abdullah's avatar
Muhammad Abdullah
Dublin, Ireland
WordPress Expert & Low-Code/No-Code Developer
WordPress Expert & Low-Code/No-Code Developer
Cover image for Saltanat
Saltanat
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Cover image for FeaturedForge
FeaturedForge
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Cover image for Pro1 Lubricants
Pro1 Lubricants
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Backend Engineer(1)