The Bellini Line · Est. London
Harvey
Bellini.
I’m Harvey, a backend software engineer in London.
At Kraken, I work on the systems behind electricity settlement—improving database performance, message processing and operational tooling.
Python / Django / PostgreSQL / Kubernetes
Currently building at Kraken Technologies
01—09 / Selected stops
Follow the line. Stop where you’re curious.
01 / Operational Tooling / Kraken
Job control.
From an operational command to a permissioned, trackable workflow.
I built a web interface for running operational commands as Kubernetes Jobs, with execution tracking, captured output and protection against duplicate launches.
02 / Settlement Processing / Kraken
In good time.
Reducing database round-trips in a queue consumer that was running out of time.
I traced repeated processing to an N+1 query bottleneck, then introduced bulk queries and batches of 1,000 meter points.
03 / Database Performance / Kraken
Room to grow.
Faster queries. Less database overhead.
I bounded expensive message queries, replaced full-table counts with lazy pagination, and removed redundant indexes across two production estates.
04 / Data Integrity / Kraken
Safe passage.
Keeping meter readings consistent from validation through to settlement.
I worked on reading validation and submission timing, then added checks and repair tooling for migration-related meter data.
05 / F-Vision / Manchester City
A different angle.
Turning club data into an interactive, three-dimensional view of football.
I built F-Vision with Python and Three.js during a ten-week project using club-provided data, and demonstrated it at the Etihad Stadium.
06 / Immersive Learning / VirtualSpeech
Practice makes progress.
Building the services behind AI-powered roleplay in virtual reality.
I developed Python and Django REST APIs with VR developers, integrated document ingestion into roleplay scenarios, and worked on AWS infrastructure and SQL databases.
07 / Community Software / CoLab
Connected care.
Useful software for the people helping people.
I led a team of six, translated a charity’s requirements into a Django mental-health application, and delivered its cloud deployment and migration.
08 / Python Workshops / Exeter Entrepreneurs
The starting point.
Making a first step into programming feel possible.
I designed and taught a ten-week Python fundamentals course for university students.
09 / Recipes / Off Duty
The kitchen.
A little patience. A lot of olive oil. Something good to share.
I keep a small recipe collection with ingredients and instructions together, ready to cook from or print.
Every stop. Your own route.
The whole network.
- SystemsBackend engineering, scale & reliability
- ExperiencesInteractive products & visualisation
- CommunityLeadership, teaching & useful tools
- Off DutyFootball, food & personal projects
- 01Job controlKraken Technologies
- 02In good timeKraken Technologies
- 03Room to growKraken Technologies
- 04Safe passageKraken Technologies
- 05A different angleManchester City FC
- 06Practice makes progressVirtualSpeech
- 07Connected careCoLab Exeter
- 08The starting pointExeter Entrepreneurs
- 09The kitchenA personal collection
Behind the line
Curious by nature.
Engineer by trade.
I’m a backend software engineer based in London, with an MSci in Computer Science from the University of Exeter. My work spans energy, AI-powered VR, community software and football.
The common thread: understanding a problem properly and building something useful. Away from the code, you’ll find football, motorsport, gaming and something in the oven.
The full story — download my CV ↓There’s always another connection.
Let’s talkInteresting problems. New ideas. A good conversation.
harveybellini@gmail.comOne circular line. Travel one stop at a time.