E/B
Say hello

Elias · Software engineer · London

I’m a software engineer who works across systems, data, and interfaces. I care about how a product feels, how it behaves when things go wrong, and whether the person using it can understand what is happening.

NowBuilding a more personal corner of the internet.

Selected work ↓

01 / Featured work

A few projects I want to put first.

Threshold landing page showing rental affordability choices for London, Basel, and Zurich01

Product engineering · Data visualisation · 2026

Threshold

A rental-affordability calculator for London, Basel, and Zurich. It brings salary, moving costs, and local assumptions into one shareable picture of what it takes to move.

  • Shareable URL state
  • Typed city configuration
  • Accessible visual reasoning
Read case study Open project View code
View all work

02 / Outside work

Some of what I’m into lately.

Recent building

Live · all contributions957 contributions in the last yearPushed to eliasb.dev · private work is included in the total without repository details.
957contributions0private
GitHubUpdated 23 Sept

Local signal

Current note
London skyline from the Thames, with St Paul’s Cathedral and the City beyond
London · home base
Building this corner of the internet.

Training

Typical weekA typical training week
MonFull body
TueZone 2 run
WedFull body
ThuInterval run
FriFull body
SatZone 2 rowing machine
SunInterval assault bike
Authored schedule · not synced to a fitness service.
Authored scheduleStable fallback

Fantasy football

Live · week 3
NFL · week 1
0–2 this seasonEB 0.0week 3OPP 0.0The showcase matchup is live; every other manager remains anonymous.
SleeperUpdated 23 Sept

Culture and curiosities

Things I keep within reach.

ReadingCurrently readingDark Age001

Currently reading

Dark Age

The #1 New York Times bestselling author of Morning Star returns to the Red Rising universe with the thrilling sequel to Iron Gold. For a decade Darrow led a revolution against the corrupt color-coded Society. Now,…Updated 23 SeptView on Goodreads
CinemaCulture liveThe Invite002

Recently watched

The Invite

The latest film in my diary. I keep the rating and notes on Letterboxd.2026 · 4.0 out of 5Updated 23 SeptView on Letterboxd

Music · Spotify

Curated playlist

A playlist with the aux cable.

Kept by hand, played through Spotify, and allowed to change.Open playlist in Spotify

History · a small weekly note

A few things that happened this week.

Week of 21 September 2026

This week in history

2013 Unidentified gunmen began a three-day attack on the upmarket Westgate shopping mall in Nairobi, Kenya, resulting in the deaths of 67 people with at least another 175 wounded.Source

2004 American rock band Green Day released their seventh studio album, American Idiot.Source

2001 Several British Muslim youths in Peterborough, England, murdered 17-year-old Ross Parker, leading to debate over whether the British media failed to cover racially motivated crimes with white victims.Source

A few events from the Monday of this week, looked up from Wikimedia and cached for seven days.Wikimedia · cached

03 / Experiments

Small bets, unfinished ideas, and useful mistakes.

Occasional work in progress, interface studies, and notes from making things. No schedule, just ideas worth keeping.

01Warm illustrated portrait of the eccentric Professor Past

History · Character · AI

Ask Professor Past

A personality-led history chatbot that turns a search-shaped question into a conversation with an eccentric professor.View source
02Aerial view of a football stadium and marked fieldFootball · Data · Prediction

Fantasy football models

A home for matchup views, rankings, draft tools, and eventually a small prediction model built around one Sleeper redraft league.Read experiment note

The live homepage matchup is connected and the other managers stay anonymous. Rankings and prediction experiments can grow here without presenting guesses as certainty.

03Flowtime focus timer interface showing an idle sessionInteraction · Craft · Notes

Interface studies

Small studies of states, controls, motion, and recovery—the parts of an interface that usually decide whether a product feels considered.Read experiment note

Studies will appear when there is a real decision, failed direction, or reusable lesson worth preserving.

04 / About

Engineer by trade.
Curious by default.

I’m based in London and currently work on high-performance pricing and risk systems. Outside work, I build my own products end to end: finding the problem, shaping the interaction, writing the code, and returning to the awkward parts until they make sense.

I like software that respects the person using it: clear enough to understand, resilient when things go wrong, and considered down to the awkward states.

Elias Bennett smiling in a white dinner jacket
Off duty, approximately

Connecting thread

The thread through all of it.

How do you make complicated things easier to understand?
  1. 01

    Earlier

    Data and marketing

    I started in marketing, close to data, experiments, and the question of why one experience earns attention while another loses it.
  2. 02

    Then

    AI model training

    Training and evaluating code for language models made precision matter in a different way. A plausible answer was never enough if the reasoning or code did not hold up.
  3. 03

    Now

    Software engineering

    Today I build high-performance pricing and risk software in C#, alongside personal products in TypeScript and Python. The common thread is making complicated behaviour easier to reason about.

Outside the editor

A few other ways I measure a week.

  • 01Lift

    Strength, repetition, patience.

  • 02Run

    Distance and a clearer head.

  • 03Muay Thai

    Technique under pressure.

  • 04Football

    Watching, arguing, modelling.

  • 05Reading

    Stories and ideas kept within reach.

  • 06History

    Patterns, people, and the details that stay useful.

05 / Contact

Have a complex problem worth making simpler?

Start a conversation eliasthebennett@gmail.com