Maxim Kushnir

MK

Open to opportunities

Maxim Kushnir

@maximkushnir

I build deterministic, event-sourced backend systems for reproducible high-throughput simulations.

What I'm looking for

I'm looking to build reliable backend and systems products where deterministic architecture, performance, correctness, and production engineering have meaningful impact.

At Ventute, I built the entire production asynchronous backend for an AI business-simulation platform used by real users. I designed its event-sourced deterministic kernel so historical computations replay bit-for-bit, with Python 3.11, FastAPI, async SQLAlchemy, PostgreSQL, and pure reducers enforcing correctness by construction.

I also replaced a 1,000-line hand-ordered engine sequence with declarative orchestration and topological ordering, built a Rust PyO3/Rayon extension for parallel Monte-Carlo forecasting, and strengthened release safety through Prometheus, Grafana, CI-gated bug classes, and end-to-end verification. I contribute to Python and AI infrastructure through an open vLLM pull request that makes unsupported GPU architectures fail fast.

Experience

Work history, roles, and key accomplishments

VE

Current

Founder & Solo Engineer

Current

Ventute

Dec 2024 - Present (1 year 8 months)

Sole engineer of a production deterministic AI business-simulation platform, architecting an event-sourced kernel with bit-exact replay and building the entire asynchronous backend. Implemented declarative engine orchestration, native Rust compute extensions, and operational tooling for observability and release safety.

Python fastAPI Pydantic SQLAlchemy PostgreSQL Event Sourcing CQRS Deterministic Replay Rust PyO3 Rayon Prometheus Grafana Docker Kubernetes Terraform

Education

Degrees, certifications, and relevant coursework

CC

Cambridge Assessment International Education (CAIE)

A-Levels, Mathematics, Computer Science, Business

Completed A-Levels in Mathematics, Computer Science, and Business.

II

ITIS Informatico

Technical Informatics Track, Technical Informatics

Completed coursework in algorithms, data structures, low-level architecture, and object-oriented programming.

UH

University of Helsinki

Full Stack Open, Full Stack Web Development

Grade: 5/5

Completed Full Stack Open course with 7 ECTS and a grade of 5/5.

UH

University of Helsinki

DevOps with Kubernetes, DevOps

Completed DevOps with Kubernetes course.

HU

Harvard University

CS50's Introduction to Artificial Intelligence with Python, Artificial Intelligence

Completed CS50's Introduction to Artificial Intelligence with Python.

UH

University of Helsinki

Java Programming I & II, Java Programming

Completed Java Programming I & II with 10 ECTS.

SA

Saylor Academy

CS107: C++ Programming, C++ Programming

Grade: 92.5%

Completed CS107: C++ Programming with a final grade of 92.5%.

Tech stack

Software and tools used professionally

GitHub

Kubernetes

PostgreSQL

iCloud

Redis

Terraform

Java

FastAPI

asyncio

Grafana

Prometheus

SQLAlchemy

Uvicorn

SQL

Neon

Pydantic

Monte Carlo

Port

vLLM

Writer

PyO3

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