Senior software engineerNYC metro
That has meant distributed backends, machine-learning systems, robots, medical devices, and developer tools. I start with what the system must do and how it can fail, then work backward to the design.
01 / SELECTED SYSTEMS
A product I operate, an open-source protocol implementation, and an ML tool I took through operation and shutdown.
Software projects contain dependencies. Charn shows those dependencies as a graph instead of forcing them into a list.
I built and operate the product: the dependency model, backend, asynchronous workers, subscriptions, storage, and deployment.
ZeroMQ uses a wire protocol. Chumak implements that protocol in pure Erlang.
It handles protocol negotiation, asynchronous messaging, supervision, and failures. The project later moved into the official ZeroMQ organization.
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Two segmentation models can have similar scores and fail on different parts of an image. This tool made those differences visible.
I built the application and ML workflow, ran it as a service, and shut down the original infrastructure when the cost no longer made sense. The archived version preserves the interaction.
Open the archive02 / TRACK RECORD
I have worked on research systems, cloud delivery, machine learning, robots, medical devices, and controls. In each case, deployment, failure recovery, operators, and cost were part of the system. The code was only one part of the job.
Read the résuméAI/ML Delivery Consultant
Designing and delivering AI/ML systems for AWS customers.Software Development Engineer II
Moved machine-learning workflows into reliable production systems.Machine Learning & Controls Engineer
Led a behavior-detection feature to 92% accuracy across four activity classes.ML Engineer / Software Engineer
Research software, robotics simulation, distributed compute, and web systems.03 / SELECTED WRITING
The current article explains what to do when a coding agent discovers that the repository is missing something it needs.
Coding agents
Define the missing prerequisite, build it as a separate change, verify it, and then return to the original task.
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