Expert AI/ML Engineer & AI Developer — LLMs, Agents, Chatbots, and Automation. Delivered AI solutions that increased client revenue, reduced costs, and scaled operations. Specializing in LLM-powered agents, Retrieval-Augmented Generation (RAG), and real-time AI automation. 100% client satisfaction across projects in SaaS, LegalTech, EdTech, E-commerce, and Enterprise AI. Whether you need to deploy an AI agent that closes leads, integrate LLMs into your product, or automate complex workflows, I deliver production-ready solutions that drive measurable business impact. Where I Can Help: Design & deployment of LLM-based agents for customer support, lead gen, research, compliance, and analytics Building custom chatbots with context-aware memory, multilingual support, and API integrations RAG pipelines with FAISS/Pinecone for instant retrieval and grounded answers Model fine-tuning & optimization (LoRA, PEFT) for domain-specific AI AI automation for email marketing, data processing, and workflow orchestration Cloud-native AI deployment (AWS, Azure, GCP) with scalable APIs & endpoints Projects Built an RL-based email follow-up agent that self-optimized via reward loops — increased lead conversion by 40% for a marketing agency. Developed a compliance copilot using RAG + LangGraph that retrieved, interpreted, and verified regulations against internal docs with citations — reduced manual review time by 60%. Created a multilingual AI chatbot for an e-commerce platform that handled 70% of support tickets automatically. Core Skills & Technologies: Programming : Python, C++, JavaScript,ReactJs AI/ML : Hugging Face, LangChain, LangGraph, OpenAI API, Qwen, LLaMA, Transformers Agentic AI Frameworks: LangGraph, LangChain, CrewAI, AutoGen, Langflow Deep Learning & NLP: PyTorch, Keras, Hugging Face Transformers, OpenCV LLM & APIs: OpenAI, Claude, Hugging Face Hub, Qwen, DeepSeek, LLaMA, Mistral, Vertex AI Automation & Workflow Orchestration: n8n, Make, Zapier RAG & Vector Databases: FAISS, Pinecone, ChromaDB Model Fine-Tuning & PEFT: LoRA, QLoRA, PEFT (Hugging Face), Prompt Tuning Conversational & Voice AI: WhatsApp API, Twilio, Retell.ai, Voiceflow, Custom NLU Systems Backend Development: FastAPI, Flask, REST APIs, GraphQL, Webhooks Deployment & DevOps: AWS Lambda, GCP, Docker, Kubernetes, GitHub Actions Databases: PostgreSQL, MongoDB, Supabase Frontend Integration: React.js (Dashboards, Bot Interfaces) Version Control: GitHub, GitLab, Bitbucket 🟢 LLM-Powered AI Agents Design and deploy autonomous agents for lead generation, customer service, compliance checks, research, and data analysis. Includes multi-step reasoning, memory persistence (FAISS, Pinecone), and API integrations. Supports LangChain, LangGraph, and custom agent architectures. Built for real-time decisions, automated reporting, and measurable business ROI. 🟢 Chatbots & Conversational AI Custom multilingual chatbots with advanced NLP, context-aware memory, and RAG pipelines. Integrated with web, mobile, and enterprise platforms to handle customer queries, ticket resolution, and guided onboarding. Optimized for high user satisfaction and reduced support workload. 🟢 Automation & Workflow Orchestration End-to-end automation of repetitive tasks using AI + API orchestration. Examples include AI email follow-up agents, document processing pipelines, and knowledge-base assistants. Deployed via FastAPI/Flask APIs, AWS Lambda, and containerized microservices for scalability. 🟢 Retrieval-Augmented Generation (RAG) Systems Build secure, high-accuracy RAG systems that retrieve relevant documents, interpret them, and generate cited answers. Integrated with compliance workflows, policy verification tools, and enterprise knowledge systems. Supports vector stores like FAISS, Pinecone, and Weaviate. 🟢 Custom AI Model Development & Fine-Tuning LoRA, PEFT, and instruction-tuning for domain-specific AI. Tailored Qwen, LLaMA, GPT, and Mistral models for specialized industries like legal, healthcare, and finance. Integrated evaluation pipelines for bias, accuracy, and reliability. 🟢 Full-Stack AI Integration From MVP to production — develop scalable applications with React, Next.js, Node.js, or Streamlit frontend, connected to AI backends powered by Python, FastAPI, and cloud AI endpoints. Includes real-time dashboards, analytics, and admin controls. 🟢 Cloud & API Deployment Deploy AI systems to AWS (SageMaker, Lambda, EC2/EKS), Azure, or GCP with auto-scaling endpoints, CI/CD pipelines, and security best practices. API integrations with CRMs, ERP tools, communication platforms, and custom workflows. Built for performance, scalability, and business impact. Let’s work together to develop intelligent solutions that can make a significant impact on your business. 📩 Let’s turn your AI vision into a production-ready system that delivers real ROI.

Thank you for visiting my profile! My name is Nickolai Korteland and I am an expert software engineer and experienced full stack developer with over 10+ years of experience. My knowledge encompasses different Front-end and Back-end languages, responsive frameworks, databases, and best programming practices. My problem-solving and complex algorithms abilities are also skills that I possess that contribute to my overall success as a programmer. * What I can deliver: I create high-performance, stable, and secure software able to update & handle the growth of data and resources of your business. I can deliver; - Software Design - Software Development - Software Testing - Software Deployment - Software Documentations * Type of projects you can hire me for: - Web Applications Development - Desktop Applications Development In my career, I have created and supported much great software for securing network and big data management institutions. I have built responsive web applications from scratch for small and large organizations that uses, as an example; Bootstrap, JQuery, Ajax, ReactJS. I have also customized existing web applications (Dashboards, E-commerce, WordPress, Shopify, etc…), created Frameworks that can be used to speed up software development, and created nice-looking, but primarily easy and functional desktop/web applications for my clients or employer. OOP (Object Oriented Programming) and GOF (Gang of Four) Design Patterns are concepts that I regularly use in my code. All my project codes are fully commented, documented, reusable, and efficient. My preferred method of team development is using Agile Scrum, where tools such as Slack, Trello, GitHub are important for streamlined collaboration. * Skills that I possess: - Designing Frameworks & Tools: Bootstrap, ReactJS (basics), Adobe Fireworks, Dreamweaver, Photoshop. - Developing Languages & Tools: Javascript, XML, Ajax, JQuery, NodeJS (basics), C/C++/C#, QT. - Database Languages & Management Systems: SQL and NO-SQL (MySQL, Oracle, PostgreSQL, Oracle, SQL Server, MS Access, MongoDB). - Back-end Frameworks: I build some projects using a specific custom-built MVC and GoF framework with blockchain components, .NET MVC, Java MVC. - Operating Systems: Linux (Ubuntu, Red Hat), Windows (7, 8, 10) I value clear and timely communication with my clients and aim to provide a tailored solution for your business. I am flexible with my hours, open to single projects, long-term relationships, and work well with other freelancers. My objective is to be part of building great software while having fun doing it and also to build a great relationship to work together for the long term. Best regards, Nickolai Korteland.

Thank you for checking out my profile. I am a senior Full-stack developer, most of my experience stems from Web Development. I possess more than 7 years of progressive experience in the Web development field with Full-stack. With experience in both desktop and web development I was in luck to experience a variety of challenges early on, such as designing and building scalable websites in general ranging from offshore clients to small businesses. My preference goes to designing or aiding in the development of the Front-end in general. Programming Language 1. C# 2. SQL 3. Javascript 5. TypeScript Front end technologies 1. HTML, HTML5 2. CSS, CSS5, Tailwind CSS, Bootstrap 3. React, Redux 4. Vue.js, Vuetify 5. Next.js, Nuxt.js Back end technology 1. Node.js 2. PHP 3. Laravel 4. CodeIgniter 5. Entity Framework Database 1. MySQL 2. MongoDB 3. SQLite 4. PostgreSQL 5. Firebase Source code tools 1. TFS 2. Git Development methodology 1. Agile (Scrum) 2. XP Monitoring 1. New Relic 2. Application performance management. I enjoy maintaining and growing relationships with clients. I am very responsive to any change requests or messages. Client satisfaction and quality software are my top priorities. I love working on projects that come to web design and development and I will always put my everything into making the best-looking application for the client to make them satisfied with my work. My main strengths are Timely delivery, self-motivation, hard work, and enthusiasm. If you are looking for help with an existing product or looking to build a new one, I am here to help! Let's take your project to the next level and have a talk together. Thank you for your time!

Accomplished Senior Software Engineer with 9+ years of hands-on experience in delivering top-notch Decentralized applications and Web applications for many startups and firms. Focused on creating collaborative efforts between support and engineering teams to implement system or product level changes to benefit end-users. Eager to support building an impeccable online reputation by providing high-level customer support for startups and firms. With in-depth knowledge of Artificial Intelligence, implemented deep learning to forecast Cryptocurrency price and made market-competitive tokens. Built and improved a lot of web applications and software for companies and clients. My skills : - Web3 Scope: Ethereum, Binance Smart Chain Language: Solidity, Rust, C++, Node.js, React.js Framework & Library: Hardhat, Truffle, Remix - web2 Backend • Language: JavaScript, Python, Go, Rust • Framework: Laravel(PHP), Express(Node.js) • DB Relational: MySQL, PostgreSQL, MS SQL NoSQL: MongoDB Frontend • React, React-Hook, Next.js, Material UI, Gatsby • React Native, Flutter • AngularJS, Angular, Material Design • Vue, Vuetify, Nuxt.js, Gridsome • SCSS, TailwindCSS DevOps • AWS Hosting (EC2, S3), MS Azure, Docker

Hi, Are you looking for web mobile developer that is capable of various tech such as React-native, Flutter, java and Swift? Here I am As a full stack developer, I am confident of your project. In specially, I really love React and Node(MERN-stack) and have many experiences in there. And then not only this, but also I can made you very successful source-code. Here is the list of my tech I work with. - React-native, Flutter , java, swift - React.js, AngularJS, Vue.js, jQuery, Bootstrap 4, Typescript, JavaScript - Node.js,Laravel, CodeIgniter, PHP, Python - Wordpress, Shopify, Magento, PrestaShop, etc - Mobile, iOS dev. - MYSQL, MongoDB, etc - AWS, Firebase, QuickBlox -Various CMS system- wordpress, webflow, Foomla and so on Looking forward to discussing your project details with you and building long-term relationships. Thank you for your attention.

I'm a senior full-stack engineer with 11 years of experience building production-grade web applications, with a strong focus on SaaS products, AI integrations, and modern cloud architecture. My core stack is Next.js, TypeScript, Supabase, and AWS — I use these to take ideas from zero to deployed, working products. I've built multiple SaaS products end to end, including developer tooling and AI-powered automation systems. What I do best: SaaS MVPs built fast and properly — not prototype quality, production quality AI API integrations (Claude, OpenAI, custom LLM workflows) Authentication, billing (Stripe), multi-role access, and database architecture Clean, maintainable TypeScript codebases you won't regret inheriting Full deployment on Vercel and AWS — you get a live product, not just local code How I work: I scope carefully before starting. I'll ask the right questions upfront, push back if something doesn't make sense, and keep you informed throughout. I only take projects I'm confident I can deliver well. If you're a founder or technical lead who needs a reliable engineer to build something real — let's talk.

Summary Hello, everyone. As a senior web and blockchain developer, I have 8+years experience with React.js/Next.js/Vue.js/Angualr, Node.js/Express.js/Nest.js, Solidity/Smart Contract/Staking/Trading/NFT/Swap, etc. I am hard and fulltime worker and building many websites without stopping in progress with good communication and attribute. Software developing is my fun and life.

I have 17 years of diverse experience delivering quality solutions across various sectors, including web development, social media, and community engagement. My most recent role at the City of Amsterdam allows me to serve my community while leveraging my skills as a frontend developer. I thrive on transforming ideas into functional digital platforms and optimizing processes to enhance user experience. My background includes freelance web development, where I built responsive websites that captivate users. I excel in collaborating with cross-functional teams, advocating for effective communication to drive projects to success. Whether you're seeking a software engineer with a keen eye for detail or a social media specialist to elevate your brand's presence, I bring a unique mix of technical skill and community-focused insight. Let's connect and explore how I can contribute to your project.

Founder of Digiforq, a Dutch software and AI consulting company. I build full-stack web applications, integrate AI into business workflows, and design custom AI agents that connect to real business systems (CRM, ERP, e-commerce platforms) - not just scripted chatbots. Proof of delivery: I built and launched Compulingo (compulingo.app), a live, worldwide freemium coding-education platform with an integrated AI assistant - end to end, from backend to production. What I offer: - Custom web/mobile applications, APIs, integrations - AI agent development (customer service, workflow automation) - IT advisory & digital transformation Based in the Netherlands, working with clients locally and internationally.

Back-End Developer for Python. Django, Flask, FastApi fraemworks. Fullstack developer. Next js, React