Musaddikul Islam

Software Engineer · Mobile & Backend Developer

Software Engineer with hands-on experience building and shipping Flutter applications and internal tooling, including a live mobile application with 100+ monthly active users. Experienced in backend integration and API development, with independent projects spanning multi-tenant SaaS, backend systems, and RAG applications.

Android

Backend

Frontend

日本語

Contributions

Experience

Projects

Skills

Android

Backend

Frontend

日本語

Contributions

Experience

Software Developer Intern

NeoCap Technologies Private Limited · Remote

May 2026 – Aug 2026

Built and maintained an internal Flutter/Dart mobile app with responsive UI for internal workflows.
Integrated the app with backend services and REST APIs, handling data flow, validation, and error handling.
Contributed feature-level API changes to the Node.js backend to support mobile functionality.
Collaborated on feature development, debugging, and code reviews within an engineering team.

Software Developer (Contract)

NetTech Developers · Remote

Mar 2026 – May 2026

Built and released a production Flutter app on Google Play with auth, push notifications, and responsive UI.
Integrated REST APIs over HTTP/JSON and contributed backend changes for feature implementation.
Maintained the app post-launch with bug fixes and performance improvements for 100+ monthly active users.

Projects

CockroachDB & AWS Hackathon

Agentic AIAWSCockroachDB+1

Built an agentic business memory platform that continuously captures organizational knowledge, decisions, and context; integrated Slack/Jira/GitHub to enable contextual recall, automate Jira workflows from GitHub PRs.

Multi-Tenant Gym Management SaaS

WIP 1

ReactExpressTypeScript+1

Built a multi-tenant SaaS platform using React, Express, TypeScript, and PostgreSQL for member, subscription, attendance, and operational management; designed tenant-isolated data models and role-based access control across a shared backend.

Customer Support RAG Chatbot

PythonOllamaPydantic+2

Built a RAG-based customer support chatbot with Python, Ollama, Pydantic, PostgreSQL, pgvector. Implemented type-safe AI workflows, vector retrieval, and a custom evaluation suite for testing retrieval and response quality.

TG Downloader

JavaScriptChrome ExtensionManifest V3+1

A premium, secure Google Chrome Extension (Manifest V3) designed to download restricted and private videos, voice messages, photos, and stories directly from the Telegram Web client interfaces.

Skills

Languages

TypeScriptJavaScriptDartPythonSQL

Backend

Node.jsExpressFastAPIREST APIsPostgreSQLMongoDBRedis

Frontend

ReactNext.jsFlutter

Infrastructure & Tools

DockerLinuxAWS (RDS, S3)GitGitHub Actions