About

I'm Ridoy, an Agentic Full-Stack Developer with 6+ years of experience building scalable SaaS platforms, AI-powered applications and production-ready software — from architecture to deployment.

Programming Languages: Python, Go, JavaScript, TypeScript, SQL, HTML and CSS.

Backend: FastAPI, Django, Pydantic, SQLAlchemy, Go Fiber, gRPC and Protobuf.

Frontend: React, Next.js, Tailwind CSS, shadcn/ui, Radix UI, TanStack Query/Table, Zustand, React Hook Form, Zod, Framer Motion, Recharts, ECharts and Three.js.

Real-time & Async: WebSockets, Celery, Taskiq, Redis and Valkey.

Databases & ORM: PostgreSQL, pgvector, MongoDB, SQLite, DynamoDB, SQLAlchemy, Alembic, Prisma and Drizzle ORM.

DevOps & Cloud: Docker, Docker Compose, Kubernetes, Traefik, Dokploy, GitHub Actions, AWS (Lambda, S3, DynamoDB, Textract), VictoriaMetrics and VictoriaLogs.

Authentication & Security: JWT, JWKS, OAuth, sessions, RBAC and ABAC.

Integrations & AI: OpenAI API, RAG, MCP, Stripe, Stripe Connect, Paddle, PayPal, Meta Graph API (Messenger, Instagram, WhatsApp), Twilio and Gmail API.

I work with startups and small teams to build intelligent products, automate complex workflows and turn ideas into scalable SaaS platforms — from MVP to production.

See the workGet in touch
Based in
Khulna, Bangladesh
Working
Remote, worldwide
Freelance since
September 2023
Experience
6+ years writing code
Ridoy Sheikh

Working with me

These are the habits behind every project I deliver.

  • 01

    Clear boundaries

    Each service has one job and a written contract, so your team can change one part without breaking another.

  • 02

    Contracts first

    APIs are specified before they're built, with typed validation at every edge. Fewer surprises when the pieces meet.

  • 03

    Security by design

    Short-lived tokens, role- and scope-based access, encrypted secrets and audit logs — built in from the start, not bolted on.

  • 04

    Built to be operated

    Containers, repeatable deploys, monitoring, backups and a way to restore are part of the delivery, not an extra.

  • 05

    Straight talk

    I tell you what's done, what's planned and what I'd avoid — before it costs you time or money.

  • 06

    Reusable foundations

    Where it saves you time, I bring libraries I already maintain and run in production, so you're not paying to start from zero.

Experience

  1. Sep 2023 — Present · Remote

    Fiverr

    Agentic Software Developer Freelance

    I design, build and run web platforms, backends and developer tools for clients — from first MVP to production — with Python, Go, TypeScript and PostgreSQL, and add AI features when a product genuinely needs them.

    • Python
    • FastAPI
    • Go
    • TypeScript
    • Next.js
    • PostgreSQL
    • Redis
    • Docker
    • AWS
    • OpenAI API
    • RAG
    • MCP

  2. Sep 2021 — Aug 2023 · Khulna, Bangladesh

    Mangrove Institute of Science and Technology

    Accountant & Computer Operator Full-time

    I managed financial records and transactions, supported staff and students with IT, and built reporting spreadsheets — the accounting background I bring to fintech and commerce projects.

    • Accounting
    • IT support
    • Microsoft Excel
    • Reporting

Toolbox

Pick an area. Each tool links to the projects where I've used it.

Programming Languages

The languages I write every day.

AI integration

Extraction, assistants and search over your own documents — built with validation and human review where it matters.

  • Extraction you can trust

    Turn documents, screenshots and emails into structured data. Every result is validated against a schema and reviewed by a person before it's saved.

    See the project →

  • Assistants with limits

    Support and workspace assistants that answer through read-only tools, stay quiet when they're unsure, and hand the conversation to a person.

    See the project →

  • Answers with sources

    Ask questions of your PDFs and scanned documents and get answers with citations you can click and verify.

    See it on GitHub ↗

  • Ready for AI agents

    Give agents and integrations scoped API access without ever sharing a user's session.

    See the project →

  • Tests that find edge cases

    Let a model propose the awkward inputs, then compare every run with the last so you see exactly what regressed.

    See the project →

Open source

The libraries and tools below are public. Read the code, the commit history and the releases — and see how I work day to day.

github.com/ridoysheikh

My GitHub activity, last 12 months

1,563 contributions, including private client work

NovDecJanFebMarAprMayJunJulAugSepOctNov
Less More

Public repositories

  • syncloudPublic

    Your own cloud on your own servers: deploy containers, managed Postgres and Valkey across a fleet of Linux machines.

    GoRead more →
  • synalchemyPublic

    Async multi-database toolkit for SQLAlchemy 2.x: per-model routing, automatic engines and async migrations.

    PythonRead more →
  • SynTextEditorPublic

    A rich text editor for React and Next.js whose document is data, not HTML (@syntext/react).

    TypeScriptRead more →
  • synui-cdnPublic

    Public CDN build of the SynUI renderer, served by jsDelivr.

    JavaScriptRead more →
  • syntestPublic

    Tests a live API against its OpenAPI spec and reports what broke since the last run.

    GoRead more →
  • OCRRAGPublic

    PDF question answering with AWS Textract OCR, pgvector search and verifiable citations.

    Python

Contact

Let's talk about your project.

Tell me what you're building and where it hurts. I'll reply with how I'd approach it, what it would take, and what I'd leave out.

Email meMessage on LinkedIn