YJ-928 (Yash B Joshi) · GitHub
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Achievement: Pull Sharkx2Achievement: Quickdraw

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@zigflow

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YJ-928/README.md

Hi there 👋, I'm Yash

Backend Engineer | Workflow Orchestration | Distributed Systems | Python & Go

I build the parts of a system that have to be right, not just fast — workflow engines, async data layers, streaming pipelines, and the compilers and schedulers underneath them.

Portfolio LinkedIn Twitter

🌍 Open Source

Zigflow zigflow/zigflow: declarative YAML workflows on Temporal, with no SDK boilerplate.

Zigflow compiles a workflow written in YAML (the CNCF Open Workflow Specification) into a full Temporal workflow, with retries, state management and deterministic execution. Teams get Temporal's durability without writing Go, Java or TypeScript workflow code.

🛠️ Maintainer since October 2026: reviewing PRs, keeping CI and dependencies healthy, and driving the road to v1.

Merged PRs

Highlights

  • #615: activity inputs resolved in the workflow. Every step now receives, and history records, the exact values the workflow computed, so a run can be debugged from its history alone.
  • #623: unblocked the project's CI. A CVE in golang.org/x/net had failed the image scan on main and on every open PR for two days. The fix brought builds and image publishing back to green.
  • #591: cancelling a workflow now stops it. A fork waits for its branches to be cancelled instead of returning while they keep running.

10 merged pull requests across 1 repository, and 3 issues reported. Took part in 8 discussions. Reviewed 2 pull requests.

Latest merged:

  • zigflow/zigflow#626: refactor!: remove the GetVersion gates for activity inputs and activity names (2026-10-12)
  • zigflow/zigflow#622: test: resolve the temp dir symlink in the working-directory test (2026-10-11)
  • zigflow/zigflow#623: fix(deps): bump golang.org/x/net to v0.60.0 for CVE-2026-78669 (2026-10-11)

Full record: CONTRIBUTIONS.md

🧠 What I Work On

  • ⚙️ Workflow orchestration & durable execution — Temporal, compensation, state you can reason about a week later
  • 🧩 Compilers & DSLs — graph traversal, lowering, validation, normalisation; the interesting bits are all edge cases
  • ⚡ Async Python at the data layer — SQLAlchemy 2.0, connection lifecycle, migration discipline
  • 🕐 Scheduling correctness — recurrence rules, occurrence generation, timezone-aware scheduling
  • 🔐 Auth & access control — asymmetric JWT, centralised verification, RBAC that holds at the fifth service
  • 🎥 Real-time media — RTSP, HLS, WebRTC, and the bandwidth arithmetic behind choosing between them
  • 🔍 Observability of distributed work — tracing an execution back to the intent that produced it

💻 Tech Stack

Languages & Frameworks

Python Go FastAPI Django DRF

Orchestration & Data

Temporal PostgreSQL SQLAlchemy Redis GraphQL

Infrastructure

Docker Kubernetes AWS Linux Git

Media & Protocols

FFmpeg OpenCV WebRTC

🎯 Currently

  • 🔭 Deep in workflow orchestration — compilers, durable execution, making failures legible
  • 🐹 Learning Go properly, mostly by fixing things in a runtime written in it
  • 🌍 Contributing upstream instead of carrying patches locally
  • ✍️ Getting better at the non-code half — design ownership, root-cause analysis, and writing things down

📊 Language Breakdown

Top languages by repo Top languages by commit

👯 Open to Collaborate On

🐍 Python backend & distributed systems · ⚙️ Workflow orchestration & Temporal · 🧩 Compilers, DSLs and developer tooling · 🌍 Open source

Backend Engineering · Workflow Orchestration · Distributed Systems

Profile Views

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  1. zigflow/zigflow zigflow/zigflow Public

    Define durable workflows in YAML, powered by Temporal

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  2. oss-contributions-ledger oss-contributions-ledger Public

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  4. Temporal-Python-SDK Temporal-Python-SDK Public

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  5. Yash_B_Joshi-Portfolio Yash_B_Joshi-Portfolio Public

    My portfolio, completely self designed and developed

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  6. YJ-928 YJ-928 Public

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