Inventor · Software Engineer · Founder

I build systems that build themselves.

I’m Nathan Jobrayan — an inventor and software engineer. I’m building codmir, an AI development platform of 70+ services where fleets of autonomous agents plan, write, review and ship production software.

The story

From a mixing desk to a fleet of agents

I didn’t start in software. I started behind a mixing desk, running sound for live television — X-Factor, The Voice, and a few hundred nights where a single missed cue was broadcast to everyone watching. Live production teaches you something no tutorial does: the show does not stop for you. You build a system that holds, or you get found out in real time.

That instinct carried straight into software. I came in through testing — the part of the industry everyone treats as a stepping stone — and found it was the best seat in the building. Testers see where things actually break. I spent years at Applause, Ubertesters and Smule learning exactly how production software fails, and then got tired of finding the same failures by hand.

So I automated it. Playwright suites, CI pipelines, visual feedback hooks that told you what broke before you asked. Somewhere in there the job changed shape: I wasn’t testing the product any more, I was building the machinery that tested it. That’s the moment the rest of my career turned on — the realization that the highest-leverage thing you can build is a system that does the work for you.

I’ve been chasing that idea ever since. First Vision One, a technical recruiting practice I ran through the pandemic — two years of matching engineers to teams by hand. Then Jobrain, which was me getting tired of doing that by hand and building the ML platform to do it instead. Same lesson twice: the bottleneck is almost never the code. It’s the number of things one person can hold in their head at once.

Which is what codmir is for. It’s an AI development platform — 70+ services spanning agent orchestration, cloud workstations, real-time collaboration and an IDE — built on one premise: a single engineer with a clear enough vision should be able to direct a fleet of autonomous agents the way a director runs a production. Not autocomplete. Agents that plan, write, review and ship, and keep working after you close the laptop.

I build systems that build themselves. That’s the whole thing, really.

What I've built

Built and shipping

Three ventures, one idea: give a single person the leverage of a team.

  1. codmir

    Active2025 — now

    Founder & Software Engineer

    An AI development platform where autonomous agents plan, write, review and ship production software.

    • 70+ services across agent orchestration, cloud workstations, real-time collaboration and a full IDE.
    • Persistent cloud agents that survive disconnects and keep working on long-running tasks in the background.
    • Multi-tenant architecture with end-to-end TypeScript types shared across API, UI and data models.
    • TypeScript
    • Next.js
    • NestJS
    • Prisma
    • PostgreSQL
    • OpenAI
    • Turborepo
  2. Jobrain

    Archived2022 — 2024

    Founder

    An ML-backed platform matching people to work, and employers to the people they actually needed.

    • Built the matching pipeline, the applicant experience and the employer tooling end to end.
    • Where the conviction started that orchestration — not raw code output — is the real bottleneck.
    • TypeScript
    • Next.js
    • NestJS
    • Python
    • ML
    • PostgreSQL
  3. Vision One

    Archived2020 — 2022

    Founder

    A technical recruiting practice built through the pandemic, placing engineers with employers across the country.

    • Worked with nationwide staffing agencies to connect specialised talent with the teams that needed it.
    • Two years of doing matching by hand is what made the case for building Jobrain to do it properly.
    • Recruiting
    • Talent sourcing
    • Client relations

Writing

Latest writing

Notes on agents, orchestration, and building software that builds itself.

All posts
  • Systems That Build Themselves

    Why I think the ceiling on what one engineer can build is about to move, and what actually has to be true for that to happen.

    3 min read

  • What Building 70 Services Taught Me About Leverage

    codmir is a monorepo of more than seventy services. Here's what running that alone has actually taught me — mostly that scale is a people problem wearing an architecture costume.

    3 min read

  • The Tester Advantage

    Software testing is treated as the entry-level door into engineering. I think it's the best seat in the building, and I'd argue it made me a better engineer than a CS degree would have.

    3 min read

Career

A timeline of my professional journey and experience.

codmir logo

Software Engineer

codmir

Sausalito, CA, USA · Remote

2025 - Now

Summary

  • Building codmir, an AI-driven ticket and work-management platform using Next.js 15 (App Router), NestJS, and Prisma.
  • Developing real-time collaboration and AI-powered automation (OpenAI, Gemini, OpenRouter) for tasks, tickets, and workflows.
  • Designing scalable, multi-tenant architecture with shadcn/ui, TailwindCSS, and modern TypeScript best practices.

Key Achievements

  • Shipped the first production modules for tickets, tasks, and agent-assisted workflows with SSR + API proxying.
  • Implemented streaming UX for long-running jobs with server events and resilient job orchestration.
  • Established end-to-end TypeScript types across API, UI, and data models to reduce defects and speed iteration.

Skills

TypeScriptNext.js 15NestJSPrismashadcn/uiTailwindCSSOpenAIGeminiOpenRouterPostgreSQL
Estate Sales Near Me logo

Software QA Engineer

Estate Sales Near Me

San Francisco Bay Area, CA, USA

2024 - Now

Summary

  • Designed and implemented a custom end-to-end testing framework using Playwright for a large-scale Next.js application.
  • Developed modular tests for provider signup, listing creation, Stripe checkout, and social integrations.
  • Built visual feedback hooks for UI debugging in CI.

Key Achievements

  • Improved test coverage and reduced regression risk through reusable test patterns.
  • Integrated Playwright with GitHub Actions for automated Stripe CLI tunnel setup.
  • Enhanced developer experience with browser overlays for test pass/fail status.

Skills

TypescriptNext.jsPlaywrightGitHub ActionsStripe
Seniornicity logo

Software QA Engineer

Seniornicity

San Jose, CA, USA

2024 - 2024

Summary

  • Maintained automated testing suites using Jest, Puppeteer, and Playwright.
  • Focused on acceptance, regression, and end-to-end testing.
  • Worked closely with developers and PM for final approval and releases.

Key Achievements

  • Shortened development cycles by integrating test automation with CI/CD.
  • Elevated code quality and software reliability through proactive test metrics monitoring.

Skills

TypeScriptJestPuppeteerPlaywrightCI/CD
Jobrain logo

Founder

Jobrain

Mountain View, CA, USA

2022 - 2024

Summary

  • Built a recruitment platform for tech recruiters using Next.js 15, TypeScript, and Shadcn UI.
  • Integrated Machine Learning using AWS Lambda for lightweight inference and AWS SageMaker.
  • Implemented API-driven architecture to integrate with platforms like LinkedIn and Workable ATS.

Key Achievements

  • Delivered a scalable and responsive recruitment platform from concept to launch.
  • Enhanced job-candidate matching accuracy by integrating an AWS Lambda-based ML model.
  • Streamlined application processing by integrating with LinkedIn and Workable ATS.

Skills

Next.jsTypeScriptTailwindCSSShadcn UIVercelAWS LambdaSageMaker
Vision One logo

Founder

Vision One

California, USA

2020 - 2022

Summary

  • Successfully operated as a freelance Technical Recruiter during the COVID-19 pandemic.
  • Effectively collaborated with nationwide staffing agencies to connect talent with top employers.

Key Achievements

  • Connected top employers with skilled talent as a freelance technical recruiter.
  • Streamlined the recruitment process through strategic collaboration with staffing agencies.

Skills

RecruitingNetworkingClient RelationsTalent Sourcing
Practical SQA logo

Software Engineer in Test

Practical SQA

Los Altos, CA, USA

2019 - 2020

Summary

  • Led web releases every sprint by writing test cases in Test Rail using Python.
  • Developed test cases for web functionality front-end and back-end.

Key Achievements

  • Ensured end-to-end testing coverage for web releases using Python.
  • Authored comprehensive test cases for both front-end and back-end functionality in Test Rail.

Skills

PythonTestRailQAEnd-to-End Testing
Smule, Inc. logo

QA Engineer

Smule, Inc.

San Francisco, CA, USA

2019 - 2019

Summary

  • Coordinated test runs with local and remote QA Engineers for feature, regression, alpha, and acceptance testing.
  • Utilized SaaS for testing integration of payment platforms like Stripe, Fortumo, and Braze.

Key Achievements

  • Managed feature, regression, alpha, and acceptance testing cycles with a distributed team.
  • Validated payment platform integrations (Stripe, Fortumo, Braze).
  • Analyzed event data using SQL to ensure analytics accuracy.

Skills

QASaaSStripeSQLAnalytics
Ubertesters logo

Software QA Tester

Ubertesters

Remote

2017 - 2018

Summary

  • Participated in weekly testing cycles, utilizing functional testing techniques to reproduce issues efficiently.
  • Authored and optimized test cases for manual software testing.

Key Achievements

  • Improved manual testing coverage by authoring and optimizing test cases.
  • Ensured high-quality deliverables through meticulous defect tracking.

Skills

Manual TestingFunctional TestingBug TrackingTest Case Authoring
Applause logo

Freelance Tester

Applause

Remote

2016 - 2017

Summary

  • Conducted exploratory and scripted functional testing on mobile and desktop applications.
  • Documented software defects and reported them to developers.

Key Achievements

  • Ensured software quality through functional testing on mobile and desktop.
  • Contributed to software performance improvements by documenting and reporting defects.

Skills

Functional TestingExploratory TestingMobile TestingDesktop Testing
Art Center Pro (with X-Factor/Voice TV) logo

Sound Engineer

Art Center Pro (with X-Factor/Voice TV)

Remote

2011 - 2014

Summary

  • Recorded media and managed LIVE audio stream for Art Center Pro in collaboration with X-Factor and Voice TV show.
  • Regulated sound quality during recording sessions and Live concerts.

Key Achievements

  • Managed live audio streams for high-profile television shows (X-Factor, The Voice).
  • Ensured optimal sound quality for recording sessions and live concerts.

Skills

Audio EngineeringLive SoundRecordingSound Mixing

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