David Allen
David Allen

Director of Software Engineering at Fidelity Investments

Stuff I’ve made

Deckard
VS Code extension

Deckard

A local-first second brain for the Markdown notes already in your workspace.

Marketplace
Esper Themes
VS Code themes

Esper Themes

Film-inspired, high-contrast color themes for VS Code.

Marketplace
Tycho
Game engine

Tycho

An engine for small, phone-first pixel games, with Tyrell, a minds engine, inside.

Docs
Under the White Dragon
Side-scroller

Under the White Dragon

Cyberpunk repair, from a basement under a noodle bar.

Play
Lodestar
Top-down action

Lodestar

Carry a star's light across a dead world.

Play
Merryfolk
Artificial life

Merryfolk

Artificial life in a Shire-like village.

Play
NEO
Roguelite

NEO

A five-minute roguelite in a dungeon of code.

Play

Experience

Writing software since 2005, from Flash games to more than a hundred client projects.

2024 – now

Fidelity Investments

Director, Software Engineering

I lead two teams in fixed income:

Investment Tool Development

Tools for the portfolio managers, quants and traders behind more than $2.5T in fixed income.

User Experience Center of Excellence

UI components and standards for all of fixed income engineering.

2022 – 2024

Datamura Solutions

Director of Software Engineering

Built and led the team behind an operations and analytics platform for a Fortune 500 pharmaceutical company.

2020 – now

Esper Innovations

Founder

Custom software and consulting for a range of clients.

2019 – 2020

University of New Hampshire

Adjunct instructor

Instructed two cohorts of a six-month full-stack bootcamp.

2012 – 2019

The Atom Group

Senior software architect

Built software for more than 100 clients.

2010 – 2012

Plymouth State University

IT roles

While earning a B.S. in Information Technology.

Elsewhere