Looks like you have JavaScript disabled. For the full Twine experience, you will need to re-enable it.

Hi, I'm Souheil Sbayou, a full-stack engineer with 7+ years of experience. I started with a strong frontend foundation and naturally expanded into backend systems, delivering across logistics, SaaS, and AI. I enjoy solving ambiguous problems and building robust UI with React and Next.js, server-first architectures, and polymorphic UI components.\n\nI specialize in end-to-end system design: from complex state management and client data delivery optimization to durable backend workflows, serverless and edge deployments, and AI/agents integration. I value observable systems, scalable monorepos, and data-driven decision making, and I thrive in teams that are still figuring out the problem itself.…Hi, I'm Souheil Sbayou, a full-stack engineer with 7+ years of experience. I started with a strong frontend foundation and naturally expanded into backend systems, delivering across logistics, SaaS, and AI. I enjoy solving ambiguous problems and building robust UI with React and Next.js, server-first architectures, and polymorphic UI components.\n\nI specialize in end-to-end system design: from complex state management and client data delivery optimization to durable backend workflows, serverless and edge deployments, and AI/agents integration. I value observable systems, scalable monorepos, and data-driven decision making, and I thrive in teams that are still figuring out the problem itself.

Souheil Sbayou

Full Stack Developer, Front-End Developer, Web Developer, +4





Hi, I'm Souheil Sbayou, a full-stack engineer with 7+ years of experience. I started with a strong frontend foundation and naturally expanded into backend systems, delivering across logistics, SaaS, and AI. I enjoy solving ambiguous problems and building robust UI with React and Next.js, server-first architectures, and polymorphic UI components.\n\nI specialize in end-to-end system design: from complex state management and client data delivery optimization to durable backend workflows, serverless and edge deployments, and AI/agents integration. I value observable systems, scalable monorepos, and data-driven decision making, and I thrive in teams that are still figuring out the problem itself.…Hi, I'm Souheil Sbayou, a full-stack engineer with 7+ years of experience. I started with a strong frontend foundation and naturally expanded into backend systems, delivering across logistics, SaaS, and AI. I enjoy solving ambiguous problems and building robust UI with React and Next.js, server-first architectures, and polymorphic UI components.\n\nI specialize in end-to-end system design: from complex state management and client data delivery optimization to durable backend workflows, serverless and edge deployments, and AI/agents integration. I value observable systems, scalable monorepos, and data-driven decision making, and I thrive in teams that are still figuring out the problem itself.

Available to hire

Hi, I’m Souheil Sbayou, a full-stack engineer with 7+ years of experience. I started with a strong frontend foundation and naturally expanded into backend systems, delivering across logistics, SaaS, and AI. I enjoy solving ambiguous problems and building robust UI with React and Next.js, server-first architectures, and polymorphic UI components.\n\nI specialize in end-to-end system design: from complex state management and client data delivery optimization to durable backend workflows, serverless and edge deployments, and AI/agents integration. I value observable systems, scalable monorepos, and data-driven decision making, and I thrive in teams that are still figuring out the problem itself.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Work Experience

Full Stack Developer at Echo

January 1, 2025 - Present

Founder and lead developer responsible for end-to-end software development, architecture decisions, and product strategy for Echo's web platform.

Front End Developer at Cargo Matrix

January 1, 2022 - January 1, 2024

Led front-end development across multiple projects; designed and implemented modular UI components and client-side architecture.

Front End Developer at Upwork & Envato Market

January 1, 2019 - January 1, 2022

Delivered 50+ front-end projects end-to-end, owned the entire lifecycle from concept to MVP, including research, architecture, and collaboration with stakeholders.

Founder at Echo

August 1, 2025 - Present

Went from idea to proof-of-concept in just 6 weeks (solo). Currently in post-pilot validation.

Founding Engineer at Cargoverse

October 1, 2024 - June 30, 2025

Conceptualized and developed the flagship product DocuFlow, a shipping document processing solution. Owned all aspects of technical production, going from concept to MVP in just 9 months.

Front-end Developer at Cargomatrix

May 1, 2022 - October 1, 2024

Directed the reinvention of a DHL-scale FMS for DHL, leading frontend development. Lowered projected production costs from $1.2M to $800K through agile iterative development. Maintained daily collaborative task allocation on Jira, while managing a team of 4 developers.

Frontend Developer at Envato Market & Upwork

January 1, 2019 - December 31, 2022

Generated $150k+ in total sales building e-commerce platforms & management dashboards. Designed interactive user interfaces on Figma, and built them into high-performance React & Next.js templates with headless CMS architectures (WordPress) and SEO optimization.

Founding Engineer at GrantBite

October 1, 2025 - Present

Architected a multi-tenant workspace system with a custom ABAC builder and Stripe-powered seat-based billing. Built a Next.js app with an optimistic UI for instant feel and smooth React view transitions, and developed a RAG-powered assistant with context document ingestion, vector retrieval, and internal tool-calling. Implemented full LLM observability with token usage tracking, per-tenant cost attribution, and request traces.