Joshua Trommel

Software engineer training neural nets from scratch. Building financial terminals, programming languages, and systems tools. Based in Langley, BC. jatrommel@gmail.com / 778-846-2726

Projects

Opticon -- Map-first financial terminal with live stock tickers, personal finance dashboard, and integrated data feeds.
Tally -- BC benefits tracker and self-serve scraper with grade checker and school transcript tools.
Dose -- Health tracker with substance logging, drug interactions, periodic table, and biometrics.
Spark -- Idea-sharing platform with auth, posts, and voting.
Arthur -- Nano transformer LLM built from scratch in PyTorch with a C99 inference engine. [docs]
Rabbit -- Web search engine with mind-map visualization powered by React Flow.
Brief -- Legal case analyzer for research and case management.
Jung -- Programming language with Carl Jung-themed keywords. C99 bytecode VM.
BCGD -- Website for BC Garage Doors, a family-owned garage door repair service in Langley, BC.

Systems

Shell -- Unix shell in C99 with pipes, redirects, job control, and signal handling. 845 LOC.
Debugger -- ptrace-based debugger in C++ with breakpoints, single-step, register and memory inspection.
Text Editor -- Terminal text editor built with Python curses. File I/O, line numbers, status bar.
nullC -- C compiler with lexer, parser, and x86-64 code generation. 3952 LOC.

Watching

Services

Software Engineering -- Full-stack web apps, React, Node, serverless. Auth, payments, real-time data.
Machine Learning -- Training transformers from scratch. C99 inference engine. Autonomous agents.
Systems Programming -- OS, compiler, container runtime, shell, debugger. C, Rust, ARM64.
Language Design -- Custom programming languages with bytecode VMs, lexers, parsers.

Experience

Mobile Consultant -- Macinhome, Vancouver, BC. Aug 2017 - Sep 2020
Mac Specialist -- Simply Computing, Abbotsford, BC. Sep 2018 - Sep 2019

Skills

Full-stack web development (React, Next.js, Node, Vercel)
Machine learning and neural network implementation
Systems programming (C, Rust, ARM64 assembly)
Programming language design and implementation
iOS development (SwiftUI, Xcode)

Education

University of Victoria, BSc in Computer Science (Expected 2030)
Langley Education Centre (2024 - Present)
Brookswood Secondary School (2012 - 2017)

"Excellent session with Joshua who was personable, very knowledgeable and able to answer questions clearly. He arrived on time and used the time with me very constructively. Very happy with your service. Thank you."

Rita, Client

Links

Contributions