Marshall J.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Jul 17, 2026.

I am a senior software engineer with over 15 years of experience delivering scalable and high-performance solutions. My expertise includes multiple JavaScript frameworks (React, Next.js, Vue.js, Nuxt.js), backend frameworks (Django, Laravel, Express, Nest.js, FastAPI), AI/ML, and strong language skills in Go, Python, JavaScript, and TypeScript. I’ve successfully contributed to projects for major companies like Walmart, AT&T, and American Logistics, demonstrating my ability to excel as a team leader, a collaborative team member, or an independent developer. With extensive experience across industries such as Fintech, Education, Real Estate, and Energy, I consistently deliver impactful solutions that align with business goals. Main skills: ✔️ Frontend: React.js/Next.js, Vue.js/Nuxt.js, Angular.js, TypeScript, HTML/CSS/JavaScript ✔️ CSS Frameworks/UI Component Libraries: Tailwind CSS, Ant Design, Material-UI, Bootstrap ✔️ Frontend Design/Prototyping Tools: Figma, Sketch, InVision, Adobe XD ✔️ Backend: Python, Django, Golang, Node.js, Nest.js, Express.js, TypeScript, Serverless, PHP, Laravel ✔️ Databases & ORMs – PostgreSQL, MySQL, MongoDB, Redis, Sequelize, Prisma, TypeORM, Eloquent ✔️ Cloud Computing and Infrastructure Services: AWS, Microsoft Azure, GCP(Google Cloud Platform) ✔️ AI & Machine Learning – Large Language Models (LLMs), Retrieval-Augmented Generation (RAG), AI Agents, Computer Vision (YOLO), Advanced Prompt Engineering & Fine-Tuning Let’s connect to discuss what you’re looking to build, your goals, and your budget. Thank you for your time!