Haffi Mazhar, Senior Software Engineer

Portrait of Haffi Mazhar

Haffi Mazhar

Senior Software Engineer

Oxford, UK

I build real-time systems that stay fast under pressure.

Software engineer with 7+ years in backend development and real-time systems. I build FastAPI services and cloud infrastructure, tune Python services for performance, and test reliability at very high scale. Currently building low-latency teleoperation for autonomous vehicles at Oxa, and previously founding engineer on a consumer sports platform.

Get in touchView projects
CurrentlySep 2024 – now

Oxa · AV teleoperation

Building fleet-wide remote assist for autonomous vehicles: multi-client WebRTC video, remote control and real-time services across fibre, 4G and Starlink.

WebRTCFastAPIRedisGCPTerraform

Live video latency

<200ms

Fleet-wide AV teleoperation over an optimised WebRTC pipeline.

Control messaging

<50ms

Bidirectional operator-to-vehicle messaging across fibre, 4G and Starlink.

Concurrent users

15M

Performance and chaos testing for Sky's identity platform.

Vouchers issued

10,000s

ASOS digital loyalty launch at Bink.

Oxford, UK

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Local time in Oxford

Resume

Download CV

Experience, skills & education · PDF

Experience

7+ years

  1. Oxa

    2024 – now

    Senior Software Engineer, Autonomous Vehicles Remote Assist

    Architected and built multi-client video streaming and remote control with WebRTC, enabling fleet-wide teleoperation across regions and AV platforms.

  2. EggMonkey

    –

    Founding Engineer (part-time venture)

    Took a consumer sports platform from concept to production, generating £20k total revenue and £1.3k MRR, owning product discovery, architecture and delivery.

  3. Move.ai

    2023 – 2024

    Backend Python Developer

    Shipped multi-tenant SaaS services using FastAPI on AWS Lambda, integrating DynamoDB, Stripe and Auth0.

  4. Bink

    2022 – 2023

    Backend Python Developer

    Delivered retailer APIs with FastAPI/Django, Postgres, Redis and RabbitMQ for digital loyalty; supported the ASOS launch issuing tens of thousands of vouchers.

  5. Sky

    2019 – 2021

    Software Engineer, Performance

    Optimised Sky Identity to handle spikes of ~10 million concurrent users through scaling, resource tuning and load balancing.

University of Leeds · MSc2018 – 2019

University of Nottingham · BEng2015 – 2018

Toolbox

Languages

PythonGoC++TypeScript

Real-time systems

WebRTCWebSocketsgRPCFastAPI

Reliability & performance

Latency reductionLoad testingChaos/failover testingHorizontal scaling

Cloud & infrastructure

GCPAWS LambdaKubernetesTerraformIAMPostgreSQLDynamoDBRedisRabbitMQGrafanaPrometheus

LinkedIn

in/haffimazhar

GitHub

@haffi96

Side projects

All projects

Create custom AI print on demand clothing

Typescript · NextJS · Stripe · Printify

Single source for latest software engineering articles

Typescript · AWS CDK · Serverless · Astro

An educational platform builder (SaaS)

Typescript · NextJS · Supabase · React · Tailwind

Mobile App - Encapsulate

JS · React-Native · Firebase

Latest writing

All posts

Say hello

Let's build something fast.

haffimazhar96@gmail.com

Send an email

Focus

Python, FastAPI & WebRTC on GCP and AWS.

Notes

7posts on networking, databases & systems