I turn business
problems into
shipped software.

Staff engineer, frontend lead, and quiet operator. Seven years building back-office systems, sales engines, and AI tools that move metrics — not just merge requests. I read the P&L before the PRD, and I run code reviews that start with “what is this trying to do for the business?”

60%

faster driver onboarding

MGH Group

40%

server cost reduction

OBHAI ride-share

15+

production apps shipped

across teams

7yr

leading & mentoring

junior to senior

Six projects I'd point to
in an interview.

6 featured · 11 in the archive

Enterprise SaaS2024 — presentSelise Digital Platforms

Creolytix

Staff Engineer · Frontend Lead

“Real-time threat monitoring for organizations who can't afford to miss a signal.”

Impact

Led the AI Summary feature end-to-end — from shapeless PM ask to a UI that turns 200-line threat feeds into one-paragraph decisions.

What I did

01Shipped the monitor + alert wizard — URL-driven create/edit that turns a map view into a live watch
02Built Weather as a map mode: backend tiles, forecast, history, air quality; retired Google Weather
03Shipped Places: POI markers, railroad paths, country/shape filters, zoom-gated geo fetches
04Wired F24 SSO and ENS+ alarm trigger — login through to firing an alarm from an event

Stack

ReactTypeScriptVitestAxiosZustand

Client projects.

Freelance

Circular Idea Blender2023

Match food waste to real circular-economy products, live.

Freelance build for Bopinc and Village Capital. Pick a waste or byproduct, or a product you want to make, and see real companies already doing it circularly.

ReactTypeScript

LiveVisit →

Side projects.

Personal work · 2025 — 2026

TrySpecta2026

AI-powered virtual glasses try-on for ecommerce.

Turbo monorepo — NestJS API + Next.js storefront. Customers upload a selfie; FAL/Gemini overlays frames in real time. PostgreSQL + Redis backend, shared Zod validation across the stack.

Next.jsNestJSTypeScriptFALGeminiPostgreSQLRedis

In developmentGitHub →

ReadSaver2025 — 2026

Paste any article. Get a TL;DR, key points, and Q&A with citations.

Full RAG pipeline: Jina Reader extracts content, OpenAI embeds and chunks it into pgvector. Semantic search returns grounded answers with source attribution. Streaming UI, magic-link auth.

Next.jsOpenAIpgvectorSupabasePrismaTypeScript

In developmentGitHub →

MoneyQ2026

Personal finance for Bangladesh — AI categorisation, savings buckets, EMI tracking.

BDT-primary expense tracker. GPT-4o-mini auto-categorises transactions, decimal.js handles financial precision, Vercel crons process recurring entries nightly, Recharts renders monthly insights.

Next.jsOpenAISupabasePrismaRechartsTypeScript

In developmentGitHub →

TaskOps2026

Issue tracking where roles live on the organisation, not the user.

ASP.NET Core minimal APIs on .NET 10 — JWT register/login with rotating refresh tokens, membership-scoped org access. EF Core + PostgreSQL persist projects and issues (assignment, status, comments, activity); FluentValidation on requests, Testcontainers against real Postgres.

.NET 10ASP.NET CoreEF CorePostgreSQLJWTFluentValidation

In developmentGitHub →

11 more I'm proud of.

2018 — 2025

07OBHAI Owner PanelFleet management for car owners — daily driver performanceFullstack2022

08Registration PortalSecure driver onboarding, 60% faster than the previous flowWeb2021

09mgX Landing PageDomestic + international order tracking, public siteMarketing2023

10mgX Hub AdminHub-side logistics managementInternal2023

11mgX Customer PanelOrder placement and trackingCustomer2023

12mgX Customer ServiceAngular 8 portal for call-centre agentsInternal2020

13Jatra Flagship Landing5-star travel brand under MGH GroupMarketing2023

14MGH PowerBI EmbedAuthenticated PowerBI embedding inside ReactFullstack2024

15MGH Query ManagementInternal issue & query trackingFullstack2023

16Leave ManagementHR leave workflowInternal2023

17DristiVan — SAAFEMR for glaucoma-screening patientsHealthcare2024

Work experience.

2018 — Present

SELISE Digital Platforms
2024 — Present
- Staff Software Engineer2024 — Present
MGH Group
2018 — 2024
- Manager — Full Stack Developer2023 — 2024
- Assistant Manager — Full Stack Developer2021 — 2023
- Senior Executive — Lead Frontend Developer2019 — 2020
- Trainee Executive — Junior Frontend Developer2018 — 2019

Why hire me?

Because most engineers ship code. I ship outcomes — and I can explain them to your CFO.

The best code review starts with "what is this trying to do for the business?"

Junior devs grow faster when you explain the why, not the what.

Refactoring is a feature. Schedule it.

If the PM can't read your component names, they're wrong.

The tools I reach for first.

Frontend

ReactNext.jsAngularTypeScriptTailwindMUIZustandRedux

Backend

Node.jsExpressNestJSMySQLSequelize

Realtime & Tooling

PusherSignalRFCMWeb PushPWAGoogle MapsVitest

Currently learning

DockerAWSReact Native

Things I've written down.

Read all →

Engineering4 min read

Hiring? Building?
Let's talk.

I read every email. If you're looking for a senior frontend lead — full-time or contract — start here.

sadatsajid@gmail.com

LinkedIn GitHub ResumeResume (PDF)

Based in

Dhaka, Bangladesh

Currently

Staff Software Engineer @ Selise

Available for

Full-time · Contract · Remote

Response

<24h, weekdays

I turn business
problems into
shipped software.

Six projects I'd point to
in an interview.

Creolytix

Client projects.

Side projects.

11 more I'm proud of.

Work experience.

SELISE Digital Platforms

MGH Group

Why hire me?

The tools I reach for first.

Things I've written down.

The bottleneck moved from typing to judgment

Learning the backend on a frontend engineer's clock

How I moved a team off Angular without a rewrite

Hiring? Building?
Let's talk.

I turn businessproblems intoshipped software.

Six projects I'd point toin an interview.

Creolytix

Client projects.

Side projects.

11 more I'm proud of.

Work experience.

SELISE Digital Platforms

MGH Group

Why hire me?

The tools I reach for first.

Things I've written down.

The bottleneck moved from typing to judgment

Learning the backend on a frontend engineer's clock

How I moved a team off Angular without a rewrite

Hiring? Building?Let's talk.

I turn business
problems into
shipped software.

Six projects I'd point to
in an interview.

Hiring? Building?
Let's talk.