Available for interesting conversations

Hi, I'm Minhaz.
I build
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Senior Software Engineer at Sainsbury's Digital, Tech & Data, based in London. Toptal freelancer (top 3%), competitive programmer, and a long-time Gopher. I write Go for a living, ship developer tools on the side, and try to keep systems boringly reliable.

See my work Get in touch

01 / About

I've been writing code professionally for more than a decade — a trajectory that's taken me from Dhaka to Sofia to London, through Pathao, Musala Soft, Amazon, and now Sainsbury's Digital, Tech & Data, where I'm a Senior Software Engineer building backend systems in Go.

I cut my teeth on competitive programming — the habit of reaching for the right data structure before the right framework has stuck with me ever since. I published four peer-reviewed papers during my research-assistant years (IEEE + Elsevier, on wireless sensor networks and computer vision for road-safety in Bangladesh). These days I spend most of my time on distributed systems, event-driven architectures, and making them dull enough to sleep through.

On the side, I take on selective freelance work through the Toptal network (top 3% of global talent) and occasionally speak at the Golang Meetup Dhaka community. I also build small developer tools whenever something annoys me enough — a VS Code extension for Go, an IP watcher for dynamic DNS, a Raspberry Pi fan controller, and a handful of CLIs.

Away from the screen, I'm a practicing Muslim and a proud dad of two daughters — the best part of any day is the one I spend with them. It's also excellent training for debugging under pressure.

02 / Off the keyboard

When I'm not pushing commits, I'm usually doing one of these — sometimes all at once, badly.

03 / Projects

Live from GitHub — sorted by stars, forks excluded. See all →

04 / Experience

  1. Senior Software Engineer

    Jul 2023 — Present

    Sainsbury's Digital, Tech & Data · London, UK

    Backend engineering for one of the UK's largest retailers — Go microservices, event-driven systems, and cloud infrastructure at retail scale.

  2. Software Development Engineer

    Nov 2020 — Dec 2022

    Amazon · United Kingdom

    Joined the UK engineering org, shipping on services that power parts of Amazon's global operations.

  3. Freelance Software Engineer · Toptal

    Mar 2020 — Present

    Toptal · remote · top 3% of global talent

    Selective freelance engagements through the Toptal network — backend and platform work for clients who want a Go-shaped hole filled well and on time.

  4. Senior Software Engineer

    Jul 2019 — Jul 2020

    Musala Soft · Sofia, Bulgaria

    My first role outside Bangladesh — relocating to Sofia to work on enterprise software for international clients.

  5. Senior Software Engineer

    Oct 2018 — Jul 2019

    KickBack Inc. · Dhaka, Bangladesh

    Designed, built and maintained a SaaS platform for managing cross-platform in-app purchases and subscriptions.

  6. Senior Software Engineer

    Apr 2017 — Aug 2018

    Pathao · Dhaka, Bangladesh

    Helped introduce Go across the engineering org and was part of the team behind PathaoPay — one of Pathao's flagship products.

  7. Software Engineer · early career

    2012 — 2017

    Furqan Software · Mukto Software · North South University

    Five years that shaped how I think about software. Worked across backend, web and embedded, plus research-assistant and teaching-assistant stints at NSU — where I built computer-vision and wireless-sensor-network systems (and helped lead the NSU team in the NASA Lunabotics Mining Competition).

  8. Speaker · Golang Meetup Dhaka

    2025

    Community · Dhaka, Bangladesh

    Spoke on Go generics and the repository pattern at Golang Meetup Dhaka 2025 (demo code). Always up for more.

  9. Competitive programmer

    Long-running

    Online judges & contests

    Grew up on algorithmic contests — it's where I learned to think in invariants, prefer the simpler data structure, and stop writing code before I've finished thinking.

    Full history on LinkedIn →

05 / Research & recognition

A few things I've published and won along the way — mostly from my research-assistant years at North South University.

Published research

Honours & awards

  • Top 20 — ACM ICPC Dhaka Regional

    Competitive programming · 2011

  • 2nd Runners-up — Microsoft Imagine Cup

    Microsoft · 2015

  • Top 20 — Gopher Gala (world's first distributed Go hackathon)

    Gopher Gala · 2016

  • 2nd Runners-up — Power & Energy Hackathon

    Ministry of Power, Energy & Mineral Resources, BD · 2017

06 / Writing

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I'm starting to write up lessons from production Go, devex, and infrastructure. First post lands soon — in the meantime, my open-source work is the best signal.

Follow along on GitHub →

07 / Get in touch

Got an interesting problem, a role, or a weird side-project idea? I'd love to hear about it.

LinkedIn → GitHub →