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Ismile Hossain

Full Stack Engineer · Backend & Applied AI

@thisisismileBangladeshloading weather

I’m a backend-focused full stack engineer with 5+ years shipping production web apps — well-designed APIs, fast PostgreSQL queries, reliable data at scale. Now applying that foundation to AI engineering: hybrid search, embeddings, RAG — systems built to ship, not just demo.

“Do not judge me by my successes, judge me by how many times I fell down and got back up again.”
— Nelson Mandela

Tools of the trade

A practical toolkit.

A grounded stack shaped by production work—shipping clear APIs, dependable data layers, and interfaces that feel effortless.

Languages

TypeScriptJavaScriptPythonGoSQL

Frontend

ReactNext.jsTailwind CSS

Backend

Node.jsExpress.jsNestJSAPI Design

Databases & Storage

PostgreSQLMongoDBRedis

AI Engineering

RAG PipelinesHybrid SearchEmbeddings & Vector SearchHugging Face / Transformers.js

DevOps & Cloud

DockerAWSCI/CDLinux

Also in the toolbox

GraphQLServer-Sent EventsMySQLMeilisearchAnt DesignVercelRenderGit / GitHubPostmanFFmpegDomain-Driven DesignMVCClickUpLinear

The journey so far

Experience.

Five-plus years of owning the full path—from technical decisions and implementation to deployment and optimization.

Full Stack Software EngineerOct 2020 — Apr 2026

Worked as a Full Stack Software Engineer at ELO, taking end-to-end ownership of production-grade web applications and backend systems, from technical planning and development through deployment and optimization. I worked across backend, frontend, APIs, databases, search, automation, and media processing, while leading selected projects and providing technical guidance to other developers.

Tuco.copast
Frontend Developer (Intern)May 2020 — Aug 2020

Joined Tuco.co as a Frontend Developer Intern, building responsive React interfaces for an e-commerce platform from UI/UX specifications. I integrated GraphQL APIs with frontend components and developed reusable components that improved UI consistency and simplified feature development.

Selected experiments

Things I’ve built.

A few recent builds spanning retrieval systems, event-driven services, and polished product experiences.

Recall

Personal documents are hard to search. Built a local-first RAG system that answers over your own files: hybrid BM25 + semantic retrieval with RRF fusion and cross-encoder reranking, evaluated with Hit Rate@K, MRR, and nDCG@K. Streams grounded answers with inline citations over SSE.

Evaluated retrieval quality and delivered citation-backed answers streamed in real time.

Nextjs@google/genai@huggingface/transformers@lancedb/lancedbminisearchpdf-parse

Social Media Microservices

An event-driven social media backend: independent services communicating over RabbitMQ, backed by MongoDB with Redis caching, JWT + Argon2 auth, and Winston logging — containerized end-to-end with Docker Compose.

Designed independently deployable services with asynchronous messaging, caching, and containerized infrastructure.

Express5MongoDBRedisCloudinaryRabbitMQDocker

Budget Tracker

Personal finance app for tracking income and expenses: Clerk auth, a PostgreSQL schema for transactions and budgets, and spending analytics with Recharts. Built production-style with TanStack Query, Zod-validated forms, and shadcn/ui.

Built a type-safe finance workflow with validated data, server-state management, and interactive spending analytics.

NextjsReactTypeScriptClerkPostgreSQLPrisma

A trail of small commits

In the open.

Learning in public, one commit at a time. Browse the recent contribution trail or explore the full graph on GitHub.

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Behind the scenes

Things I use.

The small setup behind the code: a focused, Linux-friendly workspace and a few dependable everyday tools.

os

LinuxUbuntuZorin OS

editor

VS CodeZedWarp Terminal

dev-tools

GitDockerPostmanHoppscotch

apps

VivaldiValentina StudioNeoHtopDiscordNotionFigma

Say hello

Let’s make something useful.

Have a bold idea, a knotty problem, or a role that feels like the next chapter? Let’s turn “what if?” into something real.

open to work

Let's build something together

Have an interesting project, role, or idea? I’d love to hear about it — I’m always open to building, collaborating, and discussing interesting problems.

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