Nathan Jobrayan

Nathan Jobrayan

AI-first engineer building Codimir — an automation-driven ticket & work platform. I design resilient systems, craft delightful UIs, and wire AI agents into real workflows.

AI Developer FounderFull-StackInventorAutomation Expert

What I do

AI Developer
  • Tool-using agents (OpenAI, Gemini, OpenRouter).

  • Retrieval, function calling, streaming UX.

  • Safety gates, evaluation, cost control.

Full-Stack Engineering
  • Next.js 15 (App Router) + shadcn/ui.

  • Type-safe APIs (tRPC/REST) with Zod/DTOs.

  • Edge-ready, SSR, and caching strategies.

Automation & Orchestration
  • Inngest workers, queues, idempotent jobs.

  • SSE/Webhooks for live progress like Actions.

  • Human-in-the-loop approvals.

Systems & Data
  • Prisma/Postgres (Neon), Redis (Upstash).

  • Observability: logs, traces, metrics.

  • Backpressure & retries built-in.

Cloud & DevOps
  • Vercel + Fly.io workers; Dockerized runners.

  • CI/CD with semantic-release and typed checks.

  • Infra as code, preview envs.

Product & Founder Skills
  • Idea → prototype → polished UX.

  • Market feedback loops & pricing experiments.

  • Docs, demos, and community building.

Security
  • OAuth/OIDC, JWT, session hardening.

  • Least privilege, secret hygiene, audits.

  • Dependency & supply-chain checks.

Performance
  • React profiling, bundle budgets, RSC.

  • Cold-start mitigation & warm pools.

  • DB indexes, query plans, caching tiers.

Backend Services
  • NestJS modules with clear boundaries.

  • Domain-driven services and DTOs.

  • Resilient adapters & retries.

Career

A timeline of my professional journey and experience.

Codimir logo

Software Engineer

Codimir

Sausalito, CA, USA · Remote

2025 - Now

Summary

  • Building Codimir, 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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