Andrew Charneski

Full-Stack Software Engineer, AI Architect & Researcher

📍 Westerville, OH (Remote) ✉️ andrew@simiacryptus.com 🌐 simiacrypt.us 💻 github.com/SimiaCryptus 🔗 linkedin.com/in/andrewcharneski

Professional Summary

Full-Stack Software Engineer and AI Architect with 20+ years of experience architecting scalable enterprise systems and 9+ years pioneering AI/ML solutions. Expert in Java/Kotlin ecosystems, distributed systems, and high-performance computing. Creator of the Cognotik AI platform (57k+ Jetbrains plugin downloads) — a comprehensive open-source AI orchestration engine featuring declarative document-driven workflows, multi-LLM orchestration across 10+ providers, and agentic task planning — and the MindsEye neural network framework with custom CUDA/CuDNN integration.

Possesses deep expertise spanning the full stack: from low-level GPU programming (CUDA/CuDNN) and high-performance computing via FFI/Project Panama to cloud infrastructure (AWS/Kubernetes) and user-facing AI products. Proven track record at Fortune 500 companies (Amazon, Expedia, Grubhub) and across defense, healthcare, and fintech domains, delivering mission-critical systems including real-time ML inference (<5ms latency), petabyte-scale data pipelines, and high-availability distributed services. Passionate about bridging the gap between deep research and production engineering — building intelligent systems with enterprise-grade rigor.


Core Competencies

     
AI Product & LLM Orchestration GPU Computing & Deep Learning Enterprise Software & Microservices
MLOps & Infrastructure Real-Time Systems & Performance Data Engineering & Databases
AI-Powered Content & DocOps Observability & Reliability Open-Source Leadership

Professional Experience

Software Consultant — Chemical Abstract Services (CAS)

Columbus, OH (Hybrid) | Jan 2026 – Present

  • Legacy Migration: Migrating complex data flows from legacy Cascading/Hadoop pipelines into a modern Spark 4-based application, ensuring data integrity and performance parity throughout the transition.
  • AI-Powered Code Migration: Constructing an automated AI coding pipeline to accelerate the migration process, leveraging LLM-based code generation and transformation to convert legacy Cascading workflows into idiomatic Spark 4 code.
  • Data Engineering: Working with large-scale scientific and chemical data processing workflows, optimizing Spark jobs for throughput and reliability.

Independent Consultant & AI Researcher — Simia Cryptus

Westerville, OH | Aug 2025 – Dec 2025

  • Cognotik AI Platform Development: Continued development of the Cognotik open-source AI orchestration platform, expanding multi-LLM provider support, refining the declarative DocProcessor engine, and growing the Jetbrains plugin to 57k+ downloads.
  • QQN Research & Publication: Authored and published the QQN (Quadratic Quasi-Newton) optimization paper (DOI: 10.13140/RG.2.2.15200.19206), including a comprehensive Rust benchmarking framework achieving a 72.6% benchmark win rate.
  • Fractal Thought Engine: Built and demonstrated an AI-powered publishing system using declarative operator pipelines to transform raw notes into multi-modal publications (articles, comics, game theory analyses, Socratic dialogues).
  • Platform Demos & Evangelism: Created comprehensive demonstration suite showcasing real-world agentic AI workflows including package documentation generation, multi-stage research pipelines, and self-bootstrapping codebases.

Senior Software Engineer — Grubhub

Remote / Westerville, OH | Oct 2018 – Jul 2025

  • Generative AI & Developer Tools: Architected agentic AI systems using LLMs for automated troubleshooting with declarative document-driven orchestration. Built full-stack AI-powered developer tools (React/TypeScript + Kotlin/Spring) for analyzing build failures, reducing Mean Time To Resolution (MTTR). Applied multi-model orchestration patterns for planning, code generation, and summarization.
  • High-Performance Java & FFI: Leveraged Java 21’s Project Panama (FFI) to build direct bindings to native SSL/SSH libraries, resolving critical connectivity failures during an Ubuntu infrastructure upgrade when standard Java libraries failed.
  • Deployment Orchestration: Designed sophisticated multi-stage deployment platform with automated canary analysis, rollback capabilities, and comprehensive audit trails for critical services.
  • Performance Optimization: Led deep performance analysis of mission-critical JVM applications (Apache Hive, Apache Ranger, Azkaban), achieving significant reduction in CPU/memory load through advanced profiling, GC tuning, and algorithmic optimization.
  • Data Platform Infrastructure: Supported PySpark-based data science workflows and petabyte-scale data processing using Azkaban. Maintained custom builds of core open-source platforms with patches contributed back to the community.
  • Observability: Designed Datadog dashboards and Splunk diagnostic queries for deep system observability, including latency tracking, throughput analysis, and automated error logging.

Software Consultant — Expedia Inc

Seattle, WA | Oct 2014 – Oct 2018

  • Real-Time Data Services: Architected high-performance ads targeting system achieving TP95 <5ms latency at ~10k TPS using Scala, Redis, and Apache Storm.
  • Cloud Migration: Led migration of petabyte-scale big data infrastructure from on-premise Hadoop to AWS/Qubole. Optimized Spark/Hive pipelines for cost and performance.
  • Open Source Customization: Maintained a custom build of Apache Oozie featuring internal management tools to support data engineering workflows.
  • Technical Leadership: Led a team of 5 developers, establishing coding standards and best practices for high-performance distributed systems.

Technical Consulting — Amazon.com

Seattle, WA | Nov 2016 – Feb 2017

  • Web Service Productionalization: Led the productionalization of a prototype Java web service for decision support and automation.

Senior Software Engineer — HBO Code Labs

Seattle, WA | Dec 2013 – Sep 2014

  • Performance Engineering: Refactored large-scale Spring web services, reducing CPU and memory load by 90% through debugging and optimization.
  • Developer Tooling: Developed static analysis tools based on Eclipse’s Java AST to enforce coding standards (parameter sanitization, transaction management, caching) and facilitate large-scale refactoring.

Technical Consulting — Various

Seattle, WA | Apr 2011 – Nov 2013

  • Plugged-In Technologies: Created a cross-platform video conferencing app (Android, Windows, Mac) and media server backend for video streaming, authentication, and session management using Java/C.
  • Big Fish Games: Developed desktop/browser and Android video game streaming clients using Java, JNA, and libffmpeg.
  • Serials Solutions: Implemented new Java data services based on Hibernate, Cassandra, and Thrift.

Team Lead and Architect — Distributed Energy Management

Bremerton, WA | 2010 – 2011

  • Team Leadership & Architecture: Led a team of six, designed a high-performance data service and analytics platform for time series data using Java, Python/Jython, and Berkeley DB.

SDE II — Amazon.com (Website Platform)

Seattle, WA | 2007 – 2009

  • Real-Time Security AI: Developed DDoS detection and response systems processing millions of requests per minute using ML for pattern recognition.
  • High Availability: Built distributed services ensuring 24/7 availability for critical infrastructure and payments data.
  • Systems Programming: Developed Apache httpd C modules for routing and security.

Software Engineer — Aristocrat Technologies, Inc

Las Vegas, NV | 2005 – 2007

  • Gaming Industry Applications: Developed C# .NET commercial business applications for the gaming industry.

Technical Skills

Programming Languages

Language Experience Level Details
Java (8+) & Kotlin Expert (20+ years) Core, Concurrency, JVM Tuning, Spring Boot, FFI/Project Panama (HPC)
TypeScript / JavaScript Expert (15+ years) React, Node.js, full-stack web development
C / C++ Advanced (20+ years) Systems programming, CUDA, performance
Python Advanced (10+ years) ML ecosystem, PySpark, scripting
Scala Advanced (8+ years) Spark, functional programming
Rust Intermediate (5+ years) QQN Optimizer research; deep conceptual alignment with ownership/borrowing patterns
SQL Expert (20+ years) PostgreSQL, MySQL, Oracle, query optimization

AI & Machine Learning

  • Generative AI & LLMs: Multi-model orchestration (10+ providers: OpenAI, Anthropic, Google, AWS Bedrock, Azure, Groq, Mistral, DeepSeek, Perplexity, local models), RAG, agentic workflows, prompt engineering, context management, multiple cognitive modes (Waterfall, Adaptive, Hierarchical, Conversational)
  • Deep Learning Frameworks: PyTorch, TensorFlow, custom frameworks (MindsEye with CUDA/CuDNN via FFI/JNI)
  • GPU Computing: CUDA programming, cuDNN integration, OpenCL, kernel optimization, hybrid memory management
  • Computer Vision: Neural style transfer, image generation, geometric transformations
  • Optimization Algorithms: Quasi-Newton methods (QQN), gradient descent, custom loss functions
  • Agentic AI & DocOps: Declarative document-driven AI orchestration, multi-step task planning, cognitive mode selection, self-healing workflows, Content-as-Code pipelines

Infrastructure & Cloud

  • AWS: EC2, S3, Lambda, EMR, RDS, CloudFront, IAM, CloudFormation, SageMaker

  • Containerization: Docker, Kubernetes (usage & troubleshooting)
  • Big Data: Apache Spark, Hadoop, Hive, PySpark, Qubole
  • Databases: PostgreSQL, MySQL, Redis, Elasticsearch, Vector Databases

DevOps & Tools

  • CI/CD & Build: Gradle, Maven, Jenkins, Git, GitHub Actions
  • Observability: Splunk, Datadog, Prometheus, Grafana
  • Orchestration: Azkaban, Oozie, Airflow concepts, Cognotik DocProcessor (declarative AI task orchestration)

Key Projects

Cognotik AI Platform

2022 – Present | cognotik.com | github.com/SimiaCryptus/cognotik

Open-source AI-powered development platform distributed as cross-platform desktop app, Jetbrains IDE plugin (57k+ downloads), and React/TypeScript web interface. Features a declarative DocProcessor engine (Markdown + YAML frontmatter) for orchestrating AI as a build system. Supports agentic workflows, RAG, multi-LLM orchestration across 10+ providers (BYOK model), multiple cognitive modes, and 15+ specialized task types. The platform bootstraps its own documentation using its own DocProcessor pipeline.

Technologies: Kotlin, TypeScript, React, Generative AI, Agentic Workflows, LLM Orchestration, RAG, PostgreSQL, Jetbrains Platform, WebSocket, Docker

Fractal Thought Engine

2023 – Present | simiacryptus.github.io/Science

AI-powered research platform and publishing system that treats content creation as a compilation of thought. Uses a declarative operator pipeline (DocOps) to transform raw notes into multi-modal publications — articles, comics, Socratic dialogues, game theory analyses, and state machine diagrams. Features circular feedback loops where analytical operators stress-test content against multiple cognitive frameworks.

Technologies: Jekyll, Markdown, YAML, Generative AI, Agentic Workflows, DocOps, Multi-Modal Content Generation

MindsEye Neural Network Framework

2016 – 2020 | github.com/SimiaCryptus/mindseye-java

Comprehensive Java deep learning library built from scratch with CUDA/CuDNN integration. Architected a custom ownership-based memory management system (paralleling Rust’s ownership model) using AST-based static analysis to enforce safety. Achieved 10x performance boost by bypassing GC for GPU buffers.

Technologies: Java, CUDA, CuDNN, OpenCL, Spark

QQN: Quadratic Quasi-Newton Optimization

2025 | github.com/SimiaCryptus/qqn-optimizer

Novel optimization algorithm bridging first/second-order methods with 72.6% benchmark win rate. Includes comprehensive Rust benchmarking framework. Published with DOI: 10.13140/RG.2.2.15200.19206.

Technologies: Rust, Mathematical Optimization, Benchmarking

Additional Projects

  • SimiaCryptus Chess (chess.simiacrypt.us): Advanced online chess platform with real-time multiplayer, variant gameplay (Hexagonal), and WebGL graphics.
  • reSTM (github.com/SimiaCryptus/reSTM): Distributed transactional memory prototype with MVCC, achieving ACID guarantees in scalable distributed systems.
  • MailDB (github.com/SimiaCryptus/MailDB): Email database system with AI-powered summarization, full-text search, and .mbox import tools.
  • HTML Tools Suite (simiacryptus.github.io/html-tools): Client-side developer toolkit featuring secure encryption tools, package upgraders, and data transformation utilities.

Publications & Research

QQN: Quadratic Quasi-Newton Optimization

Novel optimization algorithm bridging first/second-order methods with 72.6% benchmark win rate. Includes comprehensive Rust benchmarking framework. 🔗 DOI: 10.13140/RG.2.2.15200.19206 | github.com/SimiaCryptus/qqn-optimizer

Geometric Symmetry in Deep Texture Generation

Breakthrough research in neural art achieving perfect mathematical symmetry through kaleidoscopic preprocessing. 🔗 blog.simiacrypt.us/posts/symmetric_textures

Test-Driven Development for Neural Networks

Methodology for applying TDD principles, gradient validation, and A/B testing to neural network development. 🔗 blog.simiacrypt.us/posts/test_driven_development_for_neural_networks

Volumetry: Multidimensional Probability Modeling

Research on modeling complex multidimensional distributions (including fractals) using gaussian kernels, PCA transforms, and decision trees. 🔗 blog.simiacrypt.us/posts/volumetry

Cognotik Demos: AI-Powered Workflows in Action

Comprehensive demonstration suite showcasing Cognotik’s declarative AI orchestration: package documentation generation, multi-stage research pipelines, software factory workflows, and self-bootstrapping codebases. 🔗 github.com/SimiaCryptus/CognotikDemo | youtube.com/@Cognotik

Fractal Thought Engine

Personal blog and AI-powered publishing platform featuring ideas elaborated through multi-modal cognitive lenses — dialectical reasoning, game theory, Socratic dialogue, and computational modeling. 🔗 fractalthoughtengine.com


Education

University of Illinois at Urbana-Champaign

Bachelor of Engineering in Physics | Minor in Mathematics

  • Highlights: Strong foundation in mathematical modeling, numerical methods, and computational science
  • Research: Research assistant developing computational labs for Nonlinear Dynamics

References available upon request.