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Sarah
@sarah_louis220
FullStack Developer SaaS Website Application API Integration
Nigeria
English, Spanish, German
About me
Full-Stack Developer specializing in SaaS development, backend development, web applications, and AI-powered solutions.
Experienced with Python, Django, .NET, React, Next.js, Node.js, API integration, OpenAI API, LangChain, and database management using PostgreSQL and MongoDB. Skilled in building scalable applications, AI agents, CRM and ERP systems, payment integrations with Stripe, and cloud deployments using AWS, Azure, Docker, and Kubernetes.
Focused on clean code, reliable performance, and delivering business-driven solutions.
Skills
Sarah
Offline •
Average response time: 1 hour
See my services
Full Stack Web Applications
I will software developer, fullstack developer, frontend website developer supabase
Full Stack Web Applications
I will software developer, fullstack web developer, saas, web app, website development
Portfolio
Work experience
Freelance
Freelance • 2 yrs 3 mos
Full Stack Developer with AI Integration
Aug 2026 - Present • 3 mos
Full Stack Developer | Fullstack Developer | Full-Stack Developer | Senior Full Stack Developer | Full Stack Software Engineer | Full Stack Software Developer | Full Stack Engineer | Senior Software Engineer | Software Engineer | Software Developer | Senior Software Developer | Custom Software Developer | Software Architect | Software Architecture & Design | Backend Developer | Back-End Developer | Backend Engineer | Node.js Backend Developer | Python Backend Developer | Python Full Stack Developer | Front-End Developer | Web Developer | Full Stack Web Developer | Web Application Developer | Web App Development | Web Application Development | Website Development | Mobile App Developer | Mobile App Development | Cross-Platform Mobile App Development | React Developer | Next.js Developer | NextJS Developer | Node.js Developer | Python Developer | JavaScript Developer | TypeScript Developer | Laravel Developer | WordPress Developer | Shopify Developer | PHP Developer | MVP Developer | SaaS Developer | Full Stack SaaS Developer | SaaS Application Developer | SaaS Engineer | SaaS Architect | SaaS Development | AI Developer | AI Engineer | AI SaaS Developer | AI Application Developer | AI Automation Engineer | AI Automation Developer | AI Agent Developer | RAG Developer | LLM Developer | Generative AI Developer | AI Chatbot Developer | AI Voice Agent Developer | AI Software Development | AI-First Software Development | AI Integration | AI App Development | Software Development | Full-Stack Development | Web Development | Mobile App Design | UI/UX Design | UI/UX Prototyping | Software Consultation | Software Testing | Software Debugging | Application Improvement | Application Development | Desktop Application | Standalone Application | Agile Software Development | Custom Web Applications | Custom Web Programming | API Development | API Integration | API Integrations | REST API Developer | RESTful API | GraphQL Development | Third-Party Integrations | Database Development
Software Developer | Full-Stack Web Developer
Nov 2024 - Present • 2 yrs
Specializing in full-stack web development, frontend and backend development, SaaS applications, custom websites, and web app development. Focus areas include Python, Django, .NET, React, Next.js, Node.js, REST API integration, database management, and responsive web design. Services include building functional web applications, developing business platforms, integrating APIs, fixing bugs, optimizing performance, and creating scalable software solutions. Additional technologies include PostgreSQL, MongoDB, OpenAI API, AI agents, CRM, ERP, payment integration, and workflow automation. Committed to delivering clean, maintainable code, user-friendly interfaces, reliable functionality, and solutions aligned with client requirements.
2 Reviews
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1-2 out of 2 Reviews
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gbcbvb
Nigeria
Ongoing collaboration
It was nice working with her again, I will use her service for all my projects in the future because I am satisfied with what she delivered
Helpful?
gbcbvb
Nigeria
Ongoing collaboration
It was nice working with Sarah, she understands what need to be put in place first, She fix the bugs on my website and I'm extremely happy. I highly recommend her if anyone needs to fix bugs on their website or mobile app
Seller's Response
Helpful?
