Lucas Carlin

Freelance Web Developer | SaaS, Web Applications & AI

AI Development Company | Custom AI Solutions • Freelance

Nov 2023 - Present • 3 yrs

Developing custom web applications, SaaS platforms, AI chatbots, and business tools, with a focus on functional requirements, usability, and practical solutions. Core services and technical skills Web application development: Building modern interfaces and custom features using React, Next.js, and TypeScript. SaaS and MVP development: Designing and developing SaaS platforms, functional prototypes, and early-stage products. Backend and databases: Integrating Supabase, PostgreSQL, authentication systems, and data management. AI chatbots and virtual assistants: Building conversational assistants connected to business information and documents for customer support, hospitality, and internal use cases. AI integration: Connecting OpenAI APIs and large language models (LLMs) to web applications and SaaS products. Business tools: Developing dashboards, client portals, admin interfaces, and workflow automation. Deployment and maintenance: Testing applications, troubleshooting bugs, and supporting deployment and improvements. Development approach Using modern web technologies and AI-assisted development tools, including Codex and Claude Code, to turn business requirements into functional digital products. My focus is on building practical, user-friendly, and maintainable solutions tailored to each project's needs.

SaaS Developer

Piscine • Freelance

May 2026 - Jun 2026 • 1 mo

Designed and developed AquaRadar, a B2B SaaS platform for swimming pool professionals. Project overview AquaRadar helps pool installers identify new business opportunities by detecting recently sold properties with potential for swimming pool installation. Key responsibilities and achievements Defined the product concept, features, and functional requirements. Designed application workflows and user journeys. Developed the web application and user interfaces. Built tools for accessing and working with real estate data. Developed features to support sales prospecting. Continuously improved the platform based on identified business needs. Technical approach AI-assisted development using Codex and Claude Code, combining web application development with product design and functional requirements. The project demonstrates my ability to turn a business idea into a functional SaaS application, from initial concept to implementation.

Web Developer & AI Integration Developer

Coaching • Freelance

Apr 2026 - May 2026 • 1 mo

Developed a custom web application integrating artificial intelligence to generate personalized workout plans and nutrition programs. The goal was to turn the coach's expertise and working methods into a digital tool that simplifies the creation of tailored programs for clients. Key features AI workout generation: Integrated the OpenAI API to generate training plans based on the coach's methods and predefined formats. Personalized nutrition plans: Generated nutrition recommendations based on the coach's guidelines and expertise. Content personalization: Adapted programs to individual client goals and needs. Business logic integration: Incorporated the coach's methods and recommendations into AI instructions. Workflow automation: Reduced repetitive tasks involved in preparing personalized programs. User interface: Developed an interface to make generating and using programs straightforward. Project objective Help a fitness professional save time, standardize their methods, and create personalized programs more efficiently. This project demonstrates my ability to integrate AI into a web application to solve a practical business problem.