Brandon Mrgich

Most of this runs in private repositories. What follows is the shape of the work rather than a link to the source.

1. Music Platformprivate source

   Production music streaming, catalog management, and artist services platform.

   6 applications · shared TS packages · edge services · ~199k LOC

   • Architected a Turborepo/pnpm monorepo of 6 applications, shared TypeScript packages, and edge services.
   • Built a centralized admin platform for end-to-end content management — audio assets, releases, metadata, artwork, artist profiles, and rights information behind one interface.
   • Implemented a DDEX-aligned PostgreSQL model in Prisma covering recordings, releases, contributors, royalty ownership, and territorial rights, with integrity enforced at the database level.
   • Developed a secure media pipeline: multipart S3 uploads, content-addressed deduplication, audio metadata extraction, image processing, and Cloudflare edge streaming via signed, range-aware URLs.
   • Built custom auth supporting OAuth, email verification, creator onboarding, and role-based access control across admin and end-user domains.
   • Automated production infrastructure with Docker, GitHub Actions, self-hosted CI runners, EC2, and Nginx for reproducible deployments and centralized secrets.
   • TypeScript
   • Fastify
   • Next.js
   • Postgres
   • Prisma
   • Turborepo
   • Docker
   • AWS
   • Cloudflare

2. bam-claudeprivate source

   AI agent orchestration and developer tooling system.

   • Engineered a version-controlled configuration and orchestration layer extending an agentic coding system with custom multi-agent workflows, domain-specific skills, and a structured knowledge base — used daily to drive production software delivery.
   • Built a deterministic orchestration engine that decomposes engineering plans into discrete tasks and dispatches them to specialized sub-agents (implementation, testing, documentation, independent compliance auditing), persisting execution state for resumable, auditable runs across sessions and machines.
   • Designed a knowledge pipeline promoting ideas through design essays, executable plans, and living documentation, connected by typed anchor links into a navigable dependency graph — preserving design rationale end to end while routing each agent only the context its task requires.
   • Go
   • Claude Code
   • Multi-agent orchestration

3. Ephemeral CI Runnersprivate source

   Self-hosted GitHub Actions runners — one disposable container per job.

   • Webhook-driven controller that launches one runner container per CI job and tears it down on completion, managed as systemd units with configurable per-repo concurrency.
   • Runs CI for the music platform monorepo on self-hosted hardware, with a shared pnpm store bind-mounted into every container to keep installs fast across otherwise disposable environments.
   • Python
   • Docker
   • containerd
   • systemd
   • GitHub Apps

4. XNA-on-Apple-Silicon Keyboard Fix

   Root-caused a dead-keyboard bug affecting a whole class of XNA-era Windows games running on FNA under Wine on Apple Silicon.

   Worked reference case: CastleMiner Z, on the Pixel Port Wine wrapper (macOS 15, M1)

   • Traced a completely dead keyboard — mouse working, no key registering in menus or in-game — to the game initializing Windows Forms in-process, which desyncs the SDL input focus FNA's keyboard handling depends on. The mouse survived because it is polled globally and does not consult focus.
   • Fixed it by neutralizing that WinForms initialization with a six-instruction IL patch applied to the user's own installed copy, distributing only source and never any game code.
   • Generalized the result beyond the single title: a scanner identifies at-risk assemblies by their Application.AddMessageFilter / EnableVisualStyles call sites, and a standalone FNA probe isolates a runtime fault from a game fault.
   • Published the full root-cause trace so the method transfers to other affected games rather than ending as a one-title workaround.

   CollaborationDiagnosed jointly with another developer across iterative test cycles — one running builds, one bisecting the runtime — rather than through pull requests on a shared repository.

   Upstream issues filed

   • FNA-XNA/FNA#671Dead keyboard when a game inits Mono WinForms in-process (SDL focus desync); window-creation crash on FNA 25.11+
   • wine-mono/wine-mono#230In-process System.Windows.Forms desyncs SDL/FNA input focus (dead keyboard); FNA 25.x window-creation crash on 10.4+
   • C#
   • Mono.Cecil
   • IL patching
   • FNA
   • Wine / wine-mono
   • SDL

5. BrainBeatsV4

   EEG-to-MIDI web application — record music with your brain.

   UCF senior design project

   • Led a TypeScript migration of an inherited codebase with a team of four.
   • Redesigned data ingestion to expand device compatibility from two to over a dozen EEG devices.
   • TypeScript
   • React
   • Node.js

• dotfiles

  GNU Stow-managed dotfiles — zsh, tmux, git, and starship config kept in one tracked tree.

  Shellupdated Aug 2026

• nvim

  Neovim config built on lazy.nvim and Mason, with LSP servers and formatters wired up for Java, Python, Lua, and web files.

  Lua★ 1updated Jul 2026

• VST-prepper

  CLI that turns a raw piano sampling session into a usable instrument: detects transients, identifies the note, normalizes, and writes one file per key across an input tree. Built to cut 88 keys × 4 mic positions without doing it by hand.

  Pythonupdated Dec 2024

1. Launch Control Systems (LCS) Software EngineerAmentum · NASA Kennedy Space Center

   Oct 2024 — Present · Cape Canaveral, FL

   • Architected and implemented a configurable Java-based GUI platform and application framework that enables independent development, packaging, deployment, and runtime integration of mission applications within a unified operator environment; now the foundation for a growing suite of applications built across the team.
   • Defined framework APIs, application lifecycle standards, shared services, reusable widgets, and common design patterns that standardized development practices across our team and accelerated delivery of operator-facing applications.
   • Designed and developed mission applications and backend services supporting real-time operational issue tracking, telemetry visualization, alarm monitoring, and system status awareness for operators.
   • Led deployment architecture and automation efforts using Python, Bash, and Ansible, creating the first fully automated deployment solution for the GUI software stack after the system previously lacked a repeatable deployment process.
   • Developed a one-button deployment framework capable of provisioning, configuring, and deploying applications, libraries, service definitions, and environment-specific configurations across multiple development and operational Linux environments.
   • Executed dozens of deployments at scale, eliminating manual deployment activity and reducing configuration drift between environments.
   • Modernized legacy operator displays through collaboration with operators and human factors engineers, improving information presentation and enabling personnel to identify critical events and system state changes with substantially reduced latency and information overload.
   • Established automated GUI testing infrastructure and expanded unit, integration, and functional testing capabilities through JUnit and Robot Framework, increasing validation coverage for safety-critical software releases.
   • Performed JVM profiling and performance optimization using VisualVM and custom analysis techniques, identifying memory leaks and high-footprint applications while implementing lazy loading, deferred initialization, and paging strategies that reduced memory utilization by approximately 80%.
   • Standardized performance optimization techniques through shared framework libraries, enabling other developers to adopt memory-efficient patterns without duplicating implementation effort.
   • Mentored nearly a dozen interns and junior engineers through architecture discussions, design reviews, implementation guidance, testing practices, and software engineering standards while leading initiatives focused on framework standardization and deployments.

2. Launch Control Systems (LCS) Software EngineerJacobs Space Operations Group · NASA Kennedy Space Center

   Jan 2024 — Sep 2024 · Cape Canaveral, FL

   Same Launch Control Systems role and program — the support contract transitioned to Amentum in October 2024.

3. Spaceport Command and Control Software Development InternNational Aeronautics and Space Administration (NASA)

   May 2023 — Dec 2023 · Cape Canaveral, FL

   • Contributed to a Class A, human-rated, safety-critical command and control system supporting real-time launch operations.
   • Designed and implemented automated black-box tests integrated into CI/CD pipelines, reducing end-to-end test execution time from days to hours and enabling faster validation cycles.

4. Application Development and Maintenance InternCognizant

   Jun 2022 — Aug 2022 · Remote US/Canada

   • Developed enterprise software using Java Spring Boot, Maven, and Gradle.
   • Developed Node.js applications deployed on AWS.
   • Deployed and maintained Node.js and Spring Boot services.

• University of Central Florida

  B.S. Computer Science

  Jun 2017 — Dec 2023

• NASA OSTEM: Shining Star Award nomination

  Recognized for leadership, work ethic, and technical expertise.

  Aug 2023