Full-Stack Web & AI Application Development
About the service
Need a production-ready web feature, internal tool, API integration, or a small AI/RAG workflow without hiring a full team? I am a full-stack engineer with nearly 5 years of software development and delivery experience. My main stack is Java/Spring Boot, TypeScript/Node.js, React/Vue, SQL and REST APIs. I also build on Cloudflare Workers/D1 and integrate LLM/RAG capabilities through the OpenAI API.
I have contributed to eight business projects across logistics, e-commerce and transactions, healthcare operations and enterprise services. My work has covered order, payment and invoice flows; permissions, parameter validation, idempotency and concurrency handling; SQL queries; admin systems; and multi-role web applications. In my current technical delivery role, I turn business requirements into a written scope, task breakdown, milestones and acceptance checks before implementation. My personal AI projects use AI-assisted development; I remain responsible for code review, testing and final delivery.
What I can deliver:
- A clearly scoped full-stack feature, from UI and API through database changes and validation
- Java/Spring Boot or Node.js API work, SQL fixes, and React/Vue customer or admin flows
- Cloudflare Workers/D1 integrations and deployment support
- A small OpenAI/RAG workflow with explicit source handling, guardrails and an evaluation checklist
- Diagnosis of reproducible frontend, API, database or integration defects, with verification notes and a handoff document
How I work:
- Confirm the user flow, acceptance criteria, constraints and out-of-scope items.
- Break the work into milestones, dependencies and a delivery date.
- Implement the smallest complete version and protect critical logic with tests.
- Verify the main path and edge cases, review the diff, and document setup and limitations.
- Hand over source code, test evidence and a concise run and acceptance note.
AI-assisted development is used for research, boilerplate and test generation; code review, correctness and final delivery remain my responsibility. I do not promise 24/7 coverage, and I do not take vague "build everything" briefs. Send the goal, current stack, repository or screenshots, deadline and any error logs, and I will confirm fit and propose a concrete scope before you order.
Not a fit for unlicensed scraping, open-ended redesigns, or work that requires unmanageable production credentials.
What we need from you: To start, please share: 1. A short goal and the user flow you want to change or build. 2. Your current stack, repository link (or a zip), and any API documentation. 3. Screenshots or a short screen recording of the current behavior, plus exact error messages and logs if this is a fix. 4. Acceptance criteria, deadline, and budget constraints. 5. For integration work: non-production test credentials and staging URLs. Do not send production admin passwords, private keys, seed phrases, or full payment credentials. If the repository cannot be shared, I can work from a minimal reproduction. If a required third-party account, domain, or paid API is unavailable, I will document the blocker and continue with the parts that can be completed.
- Source code
- Responsive layout
