Izzi
liveDiscord RPG simulation bot with a custom engine, quests, raids and a collectible card economy. Scaled 100 to 50,000+ players, cut heavy queries from 8s to under 2s.
- TypeScript
- PostgreSQL
- Node.js
vivek@portfolio:~$ whoami
available for workSenior Fullstack Engineer building AI products & scalable backends.
Independent software consultant operating as a registered sole proprietor. 6 years building AI products and scalable backends. I’ve shipped for YC-backed startups and as a solopreneur behind products used by 50k+ people.
50k+players scaled on Izzi
$50k+revenue built solo
£2M+from one shipped feature
6 yrssenior · contract & product
01selected workThings I’ve built
all on github →
Vigil
liveUptime monitoring and hosted status pages SaaS, built and launched solo. Monitors HTTP, SSL, DNS, cron jobs and Discord bot shards; alerts via email, Slack, SMS, WhatsApp and Zapier-ready webhooks.
- TypeScript
- PostgreSQL
- Cloudflare
Velune
AIAI stylist that recommends outfits from your own wardrobe for any occasion. Shipped image recognition, PWA, payments and push notifications end-to-end.
- Astro
- OpenAI
- PWA
02experienceWhere I’ve delivered
independent consultant · dec 2020 → presentFlowglad YC W20
Open Source Developersep 2025 → jan 2026
- Contributing features and production bug fixes to a YC-backed open-source billing and payments platform.
SR
Smart Reader AI
Senior Software Engineerfeb 2025 → dec 2025
- Built an AI agent that turns long articles, PDFs and newsletters into interactive visual summaries, saving hours of reading time.
- Designed a multi-agent LangGraph pipeline with a self-correcting critic loop, shipped on Cloudflare Workers with full LLM tracing via LangFuse.
Amazon
Senior Software Engineerjan 2024 → dec 2024
- Led critical features for the Launchpad ads-management platform in React, ensuring production compliance for enterprise-scale operations.
- Improved notification performance 15% at peak by redesigning the distributed messaging layer on DynamoDB, Lambda, SQS & SNS.
Senior Software Engineersep 2022 → jun 2023
- Led the development of the ‘Instant Prizes’ feature, generating £2M+ in revenue within 2 months.
- Reduced image-delivery latency to under 100ms with Go microservices, CDN caching and signed URLs.
- Migrated millions of records Firebase → PostgreSQL, improving application load time by 35%.
Software Engineersep 2021 → aug 2022
- Automated cloud auto-scaling and CI/CD pipelines on GCP & Bitbucket with Docker.
- Engineered a fraud-detection algorithm analysing transaction patterns to flag suspicious activity.
Software Engineerapr 2021 → jun 2021
- Built the CMS powering the agent dashboard to manage content across the consumer app, using Fast Gateway, Fastify and React/TS.
- Developed an assets pipeline for image uploads to AWS S3 via signed URLs.
B
Bezzie Innovation Labs
Software Engineerjan 2020 → jun 2020
- Built a fashion recommendation system with SailsJS and ReactJS, increasing retailer customer reach by 20%.
- Developed a body-type detection module using TensorFlow and a ResNet model.
- Created a customer-interaction chatbot with Google Dialogflow.
03toolkitTech I reach for
Bigger name means I reach for it first, and every one of them points at something I actually shipped with it.
L1
Interface
what a person actually touches
L2
Services
where the decisions get made
L3
AI
agents, and the wiring around them
L4
State
what survives a restart
L5
Ground
how it ships and stays up
Aa reach for first
Aa when it fits the job
L1 to L5 · depth in the stack
vivek@portfolio:~$ ./contact.sh
Let’s build something
that ships.
Open to senior contract roles and impactful product work. Fastest way to reach me is email.