PEERDYNAMIC

architecture / android / ai systems / real-time engineering

Joseph
Annuzzi Jr

Software Architect Android Author AI Systems Builder

I build software where mobile products, advanced AI, blockchain infrastructure, real-time systems, and technical education meet, working from the product question through architecture, implementation, verification, deployment, and iteration.

Explore selected systems Published work
Kotlin / Compose Claude · Codex · Gemini Python / Solidity / CUDA
PD / SYSTEMS NOTEBOOK / 2006-2026
Technical systems lattice connecting mobile geometry, AI review nodes, event streams, graph structures, and CAD dimensions.
systems / verified paths / active research
3major Android editions
7,106bilingual exam questions
58,273grounded learning components
2,559AI-platform automated tests
1,646independent reviewer verdicts
213configured DeFi markets

01 / Selected systems

Engineering work that has to hold together.

Not an exhaustive portfolio. These are a few systems that best show how I work across product definition, architecture, implementation, verification, and deployment.

01.A / ANDROID + VERIFIED DATA

Verified bilingual Android learning system

A Kotlin / Jetpack Compose product and verified bilingual data pipeline built from Italy’s official 7,106-question driving-theory bank for English speakers preparing to take the exam in Italian.

7,106translated questions
3,912vocabulary terms
58,273grounded components
23Robolectric tests
  • Designed the study and interaction flows around rapid reading, tap-to-reveal vocabulary, bidirectional quizzes, retry workflows, and resumable progress.
  • Translations preserve truth values, numbers, units, thresholds, and terminology while isolating the words and phrases an English speaker must recognize in the Italian exam.
  • A 3,912-term / 4,557-sense vocabulary layer and dual-grounding checks mechanically verify that displayed meanings are supported by each question’s Italian and English text.
  • The offline Android app adds 76 deterministic collision-free quiz batches, SQLite transactions, restart-safe progress, retry flows, and four quiz modes.
KotlinJetpack ComposeSQLiteRobolectricPython
Diagram of a verified bilingual Android learning system with offline operation, deterministic batching, local SQLite state, and test gates.
01.B / MULTI-AGENT DEVELOPMENT + GOVERNANCE

Multi-agent software development orchestration from research to certified build

A self-reinforcing multi-agent development system that moves a workload through sourcing, research, specification, planning, implementation, testing, review, and durable institutional memory. Claude Code, OpenAI Codex, and Gemini have separated responsibilities so no model writes and certifies the same artifact.

2,559automated tests
68panel campaigns
1,646seat verdicts
80,466logged MCP calls
  • The staged orchestration runs SEED → SEARCH → RESEARCH → SPEC → PLAN → BUILD; Phase 4 decomposes work into BRIEF → TEST → CODE loops with integration checkpoints.
  • Review, decision, and fix-design panels use a 3×2 matrix with three model vendors in normal and adversarial modes. Fail-closed consensus and REVIEW-AFTER-DECIDE govern architectural choices; the recorded set includes 19 review, 31 decision, and 18 fix-design campaigns.
  • Cross-model separation of duties, Model Context Protocol (MCP) tooling, persistent state, model attestation, and Landlock sandboxing keep implementation, testing, evidence, and review mechanically separated.
  • Failures compound into durable constraints: anti-patterns, root-caused pitfalls, issue lineage, and decision records become input to later cycles rather than being forgotten on retry.
PythonasyncioMCPpytest/HypothesisSQLiteLandlock
Multi-phase software-development orchestration from research through build, wrapped by review, decision, and fix-design governance panels.
01.C / REAL-TIME DEFI + SMART CONTRACTS

Real-time DeFi & smart-contract systems

A separate body of implemented real-time DeFi engineering spans heterogeneous AMMs, lending markets, GPU-assisted opportunity search, protocol-specific math, and Solidity execution. It also includes a liquidation system built around pending transactions and historical replay.

201configured AMM pools
12lending markets
6protocol integrations
87historical liquidations
  • An asynchronous WebSocket/HTTP pipeline refreshes current state across 213 configured AMM and lending markets, batching reads with Multicall3 and handling reconnect and fallback paths.
  • Custom CuPy/CUDA Bellman–Ford kernels search directed weighted graphs for negative cycles; candidates are re-evaluated with protocol-specific integer math before execution preparation.
  • An owner-gated Solidity executor supports atomic flash-funded multi-hop routes across six borrow-source and six swap-protocol variants with callback validation, slippage checks, safe approvals, and reentrancy protection.
  • A separate liquidation engine combines lending state, pending DEX/oracle activity, projected collateral ratios, transaction construction, restartable state, and replay/profiling around 87 recorded historical events.

Research and engineering prototypes; no claim of live profitability, audited smart contracts, or production trading results.

PythonasyncioWeb3.pySolidityMulticall3CUDA/CuPy
Directed weighted DeFi market graph connecting AMM and lending venues to GPU search, validation, and Solidity execution.
01.D / PRODUCT + FULL-STACK

Production product engineering / public content product

A public Spanish-language content and smart-link product taken from concept to production as a full product-engineering system, combining product experience design, a hand-built Material Design 3 frontend, deterministic link infrastructure, serverless services, CI/CD, DNS, TLS, and operations.

10content feeds
4serverless functions
8share destinations
  • Designed the product experience and implemented the frontend from first principles using Material Design 3, including responsive desktop/mobile layouts, navigation and interaction states, article discovery, smart-link bridge pages, sharing and reaction flows, accessibility behavior, and a hand-built component system in HTML, CSS, and JavaScript.
  • Engineered deterministic shortlinks, content normalization, persistent storage, and four Node.js serverless functions, then carried the product through CI/CD, DNS/TLS configuration, deployment, and production operations.
  • Supervised an AI-agent implementation workflow with interaction mockups, state-machine thinking, plan-first review, audit-first prompts, and explicit human approval gates.
JavaScriptNode.jsHTML/CSSServerlessDockerGitHub CI/CD
Diagram of a public web product connected to serverless functions, content normalization, CI/CD, and operations.
01.E / QUANTITATIVE + REAL-TIME SYSTEMS

Prediction-market research / current quantitative workload

The current quantitative workload is a short-horizon Polymarket prediction system being designed for 5- and 15-minute crypto markets. It combines liquidation-cascade signals, order-book pressure, timing, settlement-oracle behavior, and binary-option mispricing. It is intentionally gated behind the governed development system before real money is involved.

5 / 15minute market windows
5signal families
4tracked crypto assets
  • The workload tracks BTC, ETH, SOL, and XRP across five signal families spanning cascade volume, order-book pressure, cascade timing, pressure-shift timing, and binary-option mispricing.
  • Risk design specifies Decimal-only money arithmetic, half-Kelly sizing, a 2% max single bet, 5% stop-loss, and 10% daily loss limit. Separate acceptance gates cover win rate, maximum drawdown, calibration, walk-forward efficiency, and probability of backtest overfitting.
  • The system is designed and specified, not represented as live or profitable. A prior build exposed process weaknesses, which is why the development orchestration and governance were re-architected before continuing.

Current status: workload in development; validation thresholds are acceptance criteria, not achieved trading results.

PythonRust/PyO3Web3.pySolidityWebSocketsCUDA/CuPy
Prediction-market signal pipeline covering four tracked crypto assets and feeding explicit risk and acceptance gates.

02 / Published work

Android engineering, taught at book scale.

Three major Android editions as lead and sole active author, plus more than five years of independent technical editing and review.

Introduction to Android Application Development: Android Essentials, Fourth Edition cover.
INTRO / 4E / 2013
Advanced Android Application Development, Fourth Edition cover.
ADVANCED / 4E / 2014
Introduction to Android Application Development, Fifth Edition cover.
INTRO / 5E / 2015

Each edition combined a major platform migration with substantial original authorship: roughly one-third entirely new material and roughly another third substantially rewritten as Android APIs, SDK tools, build systems, devices, and recommended practices changed.

ECLIPSE / ADT ERA → EARLY ANDROID STUDIO / GRADLE · NEW APIS · NEW SDK TOOLS · NEW CHAPTERS · NEW WORKFLOWS
  • Across all three editions, roughly one-third of the material was entirely new and roughly another third was substantially rewritten. The work went far beyond refreshed screenshots or renamed APIs.
  • Rebuilt inherited Eclipse/ADT-era examples, workflows, screenshots, and development instructions as the Android ecosystem moved toward early Android Studio and Gradle-based builds.
  • Introduced new subject matter for APIs, SDK tools, platform capabilities, device categories, Material Design, application styling, accessibility, permissions, architecture, testing, deployment, and other developments that did not exist in earlier editions.
  • Replanned information architecture and learning sequences around how developers actually build and use Android interfaces, wrote and retested working code and sample applications, rebuilt visual material, created quizzes and hands-on exercises, produced instructor PowerPoint presentations, and carried each edition through technical/editorial review to publication.

Technical editing & review / 2008–2013

Worked as an independent technical editor and reviewer on developer books for Addison-Wesley Professional, Sams Publishing, and Pragmatic Bookshelf. Reviewed manuscripts for technical accuracy, code correctness, completeness, clarity, organization, and consistency, and provided detailed feedback to authors and editors before publication.

  1. "Android User Interface Design"Addison-Wesley Professional (Pearson Education)
  2. "Learning CSS3 Animations and Transitions: A Hands-on Guide to Animating in CSS3 with Transforms, Transitions, Keyframes, and JavaScript"Addison-Wesley Professional (Pearson Education)
  3. "Android Programming Unleashed"Sams Publishing (Pearson Education)
  4. "jQuery, jQuery UI, and jQuery Mobile"Addison-Wesley Professional (Pearson Education)
  5. "Essential App Engine Java"Addison-Wesley Professional (Pearson Education)
  6. "Social Programming"Addison-Wesley Professional (Pearson Education)
  7. "Essential Facebook Development: Build Successful Applications for the Facebook Platform"Addison-Wesley Professional (Pearson Education)
  8. "Developing Facebook Platform Applications with Rails"Pragmatic Programmers (Pragmatic Bookshelf)

03 / Capabilities

One architecture mindset across very different systems.

The recurring pattern is the same: make the constraints explicit, keep the evidence close to the implementation, and treat the user experience as part of the system, not a layer added later.

01

Android & Mobile

Kotlin, Jetpack Compose, Android SDK, Java, Gradle, SQLite, Robolectric, Material Design, offline-first architecture, mobile UX.

02

AI Systems

Claude Code, OpenAI Codex, Gemini, multi-agent orchestration, staged research-to-build pipelines, 3×2 review/decision/fix-design panels, MCP, model attestation, persistent state, and agent sandboxing.

03

Blockchain & Smart Contracts

Solidity, Web3.py, EVM tooling, ABI encoding/decoding, AMMs, lending protocols, flash loans/swaps, transaction signing, callback validation, and atomic execution.

04

Real-Time / Quant Engineering

asyncio, WebSockets, JSON-RPC, event streams, graph algorithms, CUDA/CuPy, protocol math, replay testing, profiling, observability.

05

Frontend, UI/UX & Product Design

Material Design 3, responsive and mobile-first interfaces, interaction design, user flows, information hierarchy, design systems, accessibility, component/state design, user-story-driven product development, HTML/CSS/JavaScript, and product UX from concept through production.

06

Technical Content & Developer Education

Information architecture, technical writing/editing, technical review, editorial standards, instructional design, working code samples, assessments, documentation systems, and content QA.

07

Backend & Cloud Systems

Python, Node.js, SQL, REST, serverless systems, Google App Engine, CI/CD, Docker, cloud deployment, DNS/TLS, and production operations.

08

3D / CAD & Graphics

Autodesk Fusion 360, dimensional constraints, tolerances, 3D printing, CNC-oriented manufacturability, plus earlier 2D/3D asset pipelines, WebGL, OpenCV, ffmpeg, and 3ds Max.

Applied in Autodesk Fusion 360 to a mnemonic-backup wallet intended for metal/CNC manufacture: I produced a plastic 3D-printed prototype and evaluated dimensional fit and tolerances before the project stopped short of metal production.

CAD-style dimensional drawing with measured geometry and tolerances.

04 / Background

Product questions. Engineering details. The seam between them.

I’m a software architect, Android author, and product builder with a career spanning mobile applications, backend systems, technical publishing, graphics, cloud platforms, blockchain, and advanced AI.

Most of my work has been independent and 0-to-1. PeerDynamic is simply where that work has accumulated over time: products, prototypes, technical research, experiments, and systems that move from an idea into something concrete enough to test.

Recent work has pulled several long-running interests closer together: native Android, frontier-model engineering, real-time blockchain systems, technical content, and the verification machinery needed when software becomes more autonomous.

EDUCATION
University of California, Davis, B.S. Managerial Economics, Minor in Computer Science
PUBLISHED WORK
Lead and sole active author for three major Android editions; technical editor/reviewer for eight additional developer books.
SELECTED CREDENTIAL / TRAINING
ConsenSys Certified Ethereum Developer · Autodesk Fusion 360 and geometric dimensioning & tolerancing training
LinkedIn profile

05 / Connect

A direct line.

For engineering roles, technical publishing, research conversations, or work at the intersection of Android, AI systems, real-time engineering, blockchain, and developer education.

FORM / HTTPS / FORMSPREE / BACKEND VALIDATION

Privacy notice at collection: PeerDynamic collects your name, email address, optional company, message, and related technical submission data to respond to your inquiry, manage a potential professional relationship, and prevent spam or abuse. Formspree processes submissions on PeerDynamic’s behalf. Contact submissions are generally retained for up to 24 months after the last substantive communication. Do not include sensitive information. Privacy details.