FieldOps
A lightweight field-service operations product for small service businesses that need better job coordination without replacing every tool they already use.
Ahmad Tohir · Software Engineer & Product Builder
I build software for real operational problems.
I work on web products, operational systems, and technical experiments. Turning unclear workflows into software people can understand and use.
Currently building
FieldOps
A lightweight field-service operations product for small service businesses that need better job coordination without replacing every tool they already use.
01 / WORK
Selected Work
Products and systems framed around the problems they need to solve, with technology kept in context.
Logistics Platform
Operational software for planning orders, drivers, routes, realtime communication, and reporting.
Private AI / RAG
Internal document search and question answering using local models and vector search.
02 / LAB
From the Lab
Small experiments, prototypes, unfinished ideas, and technical rabbit holes.
Disk Usage Analyzer
A Rust command-line experiment for finding the largest files and folders, with parallel scanning and an optional Windows NTFS MFT path.
F# Domain Modeling
Experiments with expressing logistics workflows and valid state transitions through types.
Local LLM Experiments
Small investigations into running language-model workflows locally and understanding their practical limits.
Agentic Coding Workflow
Notes and prototypes for using coding agents without losing engineering judgment or project context.
03 / NOTES
Latest Notes
Technical reasoning, product decisions, and lessons collected while doing the work.
“Useful software starts with understanding the work around it.”
I'm a software engineer who enjoys turning messy operational processes into software that is useful, understandable, and reliable.
I've been building web software since 2017 across backend systems, frontend applications, infrastructure, and product experiments.