JE
Jonah Eastin
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Available for Full-Time & Contract — Remote

Software Engineer.Systems Thinker.Production Builder.

I build and deploy production mobile and web applications — Flutter · TypeScript · Supabase · Vertex AI. Ten years of systems diagnostics plus modern AI tooling means I ship reliably and debug fast.

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FlutterDartSupabaseTypeScriptNext.jsVertex AIRustGoogle Cloud
9+
Years in Complex Systems Diagnostics
50+
Flood Vehicle Recoveries (10+ modules each)
4
Software Projects Built Since 2023
5
OEM Factory Software Platforms
Expertise

What I Bring to a Team

Deep troubleshooting experience, modern full-stack skills, and the discipline to ship production software — not just prototypes.

SYSTEMS DIAGNOSTICS

Precision Problem Solving

Nine years tracing electrical and network faults in vehicles, where the failure is physical and the car either runs or it does not. The same method carries into software: isolate, verify, do not guess.

AI-ASSISTED ENGINEERING

Agents, Reviewed

I build with AI coding agents running in parallel, coordinated through pull requests so nothing unreviewed reaches main. I write and evaluate the prompts, keep the handoff documents current, and review every change before it lands.

END-TO-END ARCHITECTURE

From Concept to Cloud

Full ownership of the stack: mobile and web interfaces, Postgres schema and row-level security, cloud deployment, and CI/CD. SHY runs this way in production today.

Portfolio

Production Work

Live products and functional architectures designed for scale, performance, and immediate business impact.

Flagship · LiveNVIDIA Inception Program MemberFounder & Developer

SHY

Intentional connection, built for the real world.

The Relationship Operating System (LifeOS). A production-grade mobile platform built with Flutter (BLoC/Provider) and Supabase. Features a complex backend with Postgres RLS, Realtime sync, Stripe monetization, and over 300 Edge Functions.

FlutterSupabase (RLS/Edge)StripeVertex AIGoogle CloudDart
Visit shyapps.comGitHub Profile
SHY app live preview — click to visit shyapps.com
Visit Live
shyapps.com
dealerhunt-pro.exe
🚙

DealerHunt PRO

Developer

Multi-source vehicle-sourcing intelligence platform.

Aggregates vehicle auction listings via Playwright/patchright scrapers running on GitHub Actions. Built on Next.js 15 (App Router) and Supabase Realtime, utilizing Gemini AI for automated vehicle valuation and profit scoring.

Next.js 15TypeScriptPlaywrightSupabase RealtimeGemini AI
View Source
life.exe
🤠

Life

Developer

Focused digital environments for productivity.

A streamlined productivity application designed to minimize digital friction. Highlights clean UI/UX principles, performant client-side state management, and secure cloud synchronization.

HTMLCSSJavaScriptSupabase
View Source
zeus.exe
⚡

Zeus

Developer

A systems language that compiles to readable C.

A source-to-source compiler written in Rust: .zs compiles to constrained, readable C and then to a native binary. Enforces a zero-heap static arena, wipes and obliviously indexes values tagged secret, and proves compile-time assertions with Z3. Ships a ZEUS_REAL_STATE.md separating what is built from what is still roadmap.

RustCompiler DesignZ3 / SMTConstant-time Code
View Source
Case Studies

Problem → Approach → Outcome

Deep dives into system design, architecture decisions, and the technical challenges solved in each project.

Founder & Developer

SHY

Live app ↗GitHub ↗

Problem

Dating and social apps optimize for engagement, not meaningful connection. Users scroll endlessly with little context for who someone is or what they actually want.

Key Outcomes

  • ✓Live with open public signup — no invite list, no waitlist.
  • ✓End-to-end ownership from schema and auth through to store deployment.
  • ✓Cross-platform on iOS, Android, and web from one Flutter codebase.

Execution Pipeline

1

Designed a mobile-first Flutter app with Supabase for auth, realtime data, and scalable backend services.

2

Built intentional matching signals (Gravity and Harmony) instead of swipe-only mechanics.

3

Integrated Vertex AI for context-aware features while keeping privacy and user control first.

4

Deployed production infrastructure on Google Cloud with a live public presence at shyapps.com.

Live in Production
Status
iOS & Android
Platform
Serverless Backend
Architecture
Vertex AI Integration
AI Engine
FlutterSupabaseVertex AIStripeGoogle Cloud

Developer

DealerHunt PRO

GitHub ↗

Problem

Automotive dealers and buyers lack a fast way to cut through market noise across fragmented auction sites and marketplaces.

Key Outcomes

  • ✓Scraping engine runs on a schedule in CI and writes normalized rows to Postgres.
  • ✓Deduplicates at VIN level across five sources before scoring.
  • ✓Open source, roughly 900 commits.

Execution Pipeline

1

Engineered a scalable scraping engine using Playwright and FlareSolverr on GitHub Actions to bypass anti-bot protections.

2

Built a Next.js 15 frontend to surface normalized deal data via Supabase Realtime.

3

Integrated Gemini AI to automatically score vehicles for profit potential and generate instant teardown estimates.

Functional Architecture
Status
B2B Automotive
Domain
Real-time Sync
Data
Next.js App Router
Frontend
Next.js 15PlaywrightSupabase RealtimeGemini AI

Developer

Life

GitHub ↗

Problem

Digital productivity tools often create more friction than they solve, overwhelming users with complex features rather than focusing on execution.

Key Outcomes

  • ✓Issue-tracker structure applied to household and small-business work.
  • ✓Client-side state with Supabase sync across devices.
  • ✓Private repo; in use rather than published.

Execution Pipeline

1

Engineered a minimalist interface focusing entirely on core productivity workflows.

2

Implemented robust client-side state management for instantaneous UI response.

3

Integrated Supabase for secure, real-time data synchronization across devices.

Functional Repo
Status
UI/UX & Performance
Focus
Supabase Data
Backend
Vanilla JS/HTML/CSS
Frontend
HTMLCSSJavaScriptSupabase

Developer

Zeus

GitHub ↗

Problem

Code that handles secrets leaks through timing and memory even when it is logically correct — allocator behaviour, branch-dependent array indexing, and values left sitting in memory after use.

Key Outcomes

  • ✓Compiles and runs end to end: .zs to C to native binary.
  • ✓Limits documented in ZEUS_REAL_STATE.md rather than left implied.
  • ✓v0.1.0 prototype — roadmap items are labelled as intent, not capability.

Execution Pipeline

1

Wrote a source-to-source compiler in Rust that emits readable C, so the generated code stays auditable.

2

Enforced a zero-heap model: the build aborts if the generated C reaches for malloc, free, or stdlib.

3

Made secret a language keyword — tagged values get a volatile wipe at scope exit and constant-time oblivious indexing.

4

Wired Z3 into compilation so assertions are proved at build time, with a counterexample printed on failure.

Rust
Language
Readable C
Target
Zero-heap arena
Memory
v0.1.0 prototype
Status
RustZ3C
Availability

Available Nationwide · Remote OK

Fully equipped for distributed work. Open to remote roles nationwide and flexible hybrid arrangements.

✓
Remote Nationwide
✓
US Timezones (EST/CST/PST)
✓
Asynchronous Workflows
✓
Available for Travel
Remote · Nationwide
EST / CST / PST  ·  Async-ready
Open to Opportunities