Backend-Focused Full-Stack Engineer

AbdullahAl Nayem

Python, React, AWSBased in London, UKOpen to Relocation

Hello, I'm Nayem. I build the parts of a product you never notice: fast APIs, quiet servers, and deploys that just work.

Currently at BlackNerd Studio in London, I build and run Prepwise AI from architecture to live users on web, iOS and Android.

I've been shipping production Python, Django and AWS systems since 2021, and I hold an MSc in Software Engineering with Distinction from Kingston University, London.

Here are some of my most meaningful builds.

Selected Work

Builds that moved real numbers

Prepwise AI — realtime IELTS speaking mock tests with an AI examiner that talks back.

  • prepwise.nayem.one
  • AI · EdTech · BlackNerd Studio — built and operated solo, live on web, iOS & Android
  • Django REST · Next.js · React Native · AWS, orchestrating multi-stage ElevenLabs voice agents
  • Voice agents simulate a live examiner: instant band scores and personalized feedback in minutes
  • AI scores land within half a band of real examiners in 84% of cases, with evals catching drift across prompt and model changes
Live demo App Store Google Play Architecture

50K-User Learning Platform — backend optimization at scale: faster APIs, calmer infrastructure.

  • Enosis Solutions · EdTech · Software Engineer II, 2022–2024
  • Slowest dashboard API taken from 800ms to 280ms at p95 in production
  • Django · Celery · Redis · PostgreSQL, leaning on query tuning, caching and async pipelines

Fuel Retail Platform Rebuild — a legacy VB.NET store management system, migrated live to Django and Next.js.

  • Enosis Solutions · Retail · Canadian fuel retail chain, 2022–2024
  • VB.NET → Django & Next.js, rebuilding the store pricing engine behind 500K price rows
  • All 180 store cutovers gated on reconciliation checks — no store went live on unverified data
  • Blue-green CI/CD on GitHub Actions took deploys from 2 hours to minutes and halved release cycle time

In-House Email Engine — a fully automated campaign pipeline on AWS SES.

  • LII Lab · MarTech · Junior Software Engineer, 2021–2022
  • 40K+ automated sends per month, roughly 30% cheaper than the third-party tool it replaced
  • Next.js + TypeScript onboarding flow for 5K+ new users monthly, cutting mobile bounce from 42% to 28%

Efficiency & Value

How I create measurable impact

5+

years building production software

50K+

users served by systems I've shipped

800+

algorithmic problems solved

180

store cutovers shipped, each gated on reconciliation checks

My Story

From Sylhet to London, one system at a time

  1. 2025–Now

    Software Engineer · BlackNerd Studio, London

    Building and running Prepwise AI solo, from the voice agents down to the infrastructure.

  2. 2024–2025

    MSc Software Engineering · Kingston University, London

    Graduated with Distinction. Dissertation shipped as Prepwise AI.

  3. 2022–2024

    Software Engineer II · Enosis Solutions, Dhaka

    Scaled a 50K-user LMS backend; migrated a retail platform off VB.NET; mentored three junior engineers.

  4. 2021–2022

    Junior Software Engineer · LII Lab, Sylhet

    Built the AWS SES email engine and a Next.js onboarding flow.

  5. 2018–2022

    BSc Computer Science & Engineering · Leading University, Sylhet

    Where the competitive programming habit started.

AWS Certified Cloud Practitioner

Aug 2025 – Aug 2028

Verify

IEEEXtreme 14.0 Country Champion

129th globally of 2,155 teams

800+ Problems Solved

Codeforces Specialist · CodeChef 4★

Codeforces CodeChef

Toolkit

Tools I reach for, and trust

Backend

Django REST Framework · FastAPI · Celery · asyncio · WebSockets · pytest

Data & Messaging

PostgreSQL · Redis · RabbitMQ · pgvector

AI Engineering

LLM APIs (Anthropic, OpenAI) · Structured Outputs · Pydantic · Evals · Voice Agents · RAG · Prompt Caching

Cloud & DevOps

AWS (ECS, Lambda, RDS, S3, SQS) · Docker · Terraform · GitHub Actions · Nginx · Sentry

Frontend

React · Next.js · React Native · Zustand · React Query · Tailwind CSS · Jest

Have an idea or just want to connect?

whonayem01@gmail.com
View my resume
LinkedIn GitHub