Sayed Hamid Fatimi

Independent full-stack developer building products, developer tools, and long-form writing — mostly across the Valeon ecosystem.

London, UK
SHF

About

I'm an independent software developer based in London. I design and run products end to end — the frontend, the backend, and the infrastructure that ties them together — across the Valeon ecosystem along with a handful of trading and developer tools. My background is in physics, and I'm drawn to work where engineering meets markets, language, and systems. I'm open to frontend, full-stack, and systems roles.

Work Experience

  1. Self Employed

    20182024

    Freelance Software Developer & Financial Market Analyst

    Remote

    Independently developed open-source and client projects using React, Next.js, TypeScript, and Electron.js. Built and maintained multiple full-stack applications and trading tools. Automated financial market analysis workflows with JavaScript and Python, integrating technical and fundamental analysis for cryptocurrency markets.

  2. Uber / Bolt / Deliveroo / Amazon Flex

    20192023

    Self-Employed Driver & Courier

    Driver

    Provided professional taxi and delivery services across multiple platforms. Developed logistical expertise, time management skills, and customer service capabilities while operating in high-demand environments.

  3. Sitel

    20202020

    Customer Service Agent

    Remote

    Served as a Track and Trace telephone agent during the COVID-19 pandemic, assisting in public health initiatives by coordinating testing services and providing critical information to callers.

  4. Tesco

    20172017

    Customer Service Assistant

    Watford

    Supported frontline retail operations, assisting customers, handling inquiries, and maintaining efficient store operations during peak service periods.

  5. eLeREP

    20152017

    Supervising Technician

    Harrow

    Designed and implemented a device tracking system for repair services. Developed BIOS/EFI programming solutions, data recovery workflows, and automated diagnostic tools. Managed inventory systems, optimized eCommerce operations, and handled customer support initiatives.

  6. BarnDoc Healthcare

    20142015

    RMS Administrator

    Cockfosters

    Managed sensitive patient data entry and database administration within the RMS system. Facilitated confidential correspondence with patients, GPs, and hospitals, ensuring strict compliance with data protection regulations. Supported coordination of appointments and healthcare referrals through effective communication and administrative precision.

  7. Final Tuition Centre

    20132014

    Mathematics Tutor

    Enfield

    Delivered personalized mathematics tutoring to students from primary to secondary levels. Simplified complex concepts, designed custom lesson plans, and improved students' problem-solving and exam techniques through targeted feedback and continuous progress monitoring.

  8. KiioLabs

    20122013

    Web Development Intern

    Hendon

    Contributed to the development of backend features for web applications using PHP, MySQL, and JavaScript. Implemented user authentication, interactive UI components, and collaborated with the development team to deliver widely used software tools.

  9. Megamobiles

    20102011

    Repair Technician

    Harrow

    Diagnosed and repaired a range of electronic devices including laptops, tablets, monitors, and mobile phones. Specialized in component-level diagnostics and repair workflows. Managed inventory, sourced repair parts, and maintained direct customer consultations to deliver high-quality service.

Education

Queen Mary, University of London

20112014

BSc Physics

Projects

Valeon

Philosophy, markets & science publication, built end to end.

Independent publication—rebranded to Valeon—exploring philosophy, markets, science, and technology through long-form essays and structured series (e.g., Physics for Beginners, Understanding Market Mechanics, Beyond Kings & Thrones). Built the platform end to end: a Next.js blog, a Clerk-gated author dashboard, and a Convex backend, with automated text-to-speech to MP3 (OpenAI) stored on Cloudflare R2 and a podcast RSS syndicated to Spotify/Apple/YouTube. Focus: rigorous ideas, clear language, and reader-first performance.

BunNext.js 16 (App Router)React 19TypeScriptConvexClerk Auth

plutarc (by Valeon)

Algorithmic-trading orchestration with composable strategies.

Orchestration platform for deploying algorithmic trading bots with configurable, composable strategies. Built from the foundation up with no external trading libraries — every layer purpose-built for precision and transparency. Features a strategy engine with 48 composable components, 5 exit guard types, full parameter control, a backtesting suite for pre-deployment validation, and per-trade analytics with signal breakdowns and MFE/MAE tracking. Dedicated compute per instance, no shared execution environments. Usage-based billing, with 10 exchanges live — BitMEX, Bybit, Binance, Kraken, OKX, KuCoin, Deribit, Gemini, Phemex, and WooX — and Gate.io, Bitget, and HTX to follow.

BunTypeScriptNext.js (App Router)ReactConvexClerk Auth

Get in touch

Open to frontend, full-stack, and systems roles. The fastest way to reach me is email — keys below for anything sensitive.

PGP public key — Personal Email
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PGP public key — Work Email
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