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Greater Noida, India · Open to Remote & Worldwide Relocation Computer Science & Engineering undergraduate engineering high-throughput distributed systems, cluster memory diagnostic tooling, and low-latency database infrastructure.
# ⚡ Interactive Engineering Terminal (Multi-System Diagnostics)
raj@systems-box:~$ valkey-probe inspect cluster_nodes.conf --verify
[+] Valkey Cluster Topology: 3 Primaries, 3 Replicas (16,384 slots allocated)
- Slot Hash Polynomial: CRC16 XMODEM (0x1021) -> 🟢 0 Slot Holes, 0 Overlaps
- Cluster Memory Skew: σ = 0.00 (StdDev), Skew Ratio: 1.00x (Optimal)
raj@systems-box:~$ uvicorn-bench --test-shutdown-latency
[+] Server Stop Event: Wakeable asyncio.Event interrupt triggered
- Idle Stop Latency: 0.42ms (down from 200ms periodic polling) -> 🟢 PASSED
raj@systems-box:~$ dataprof-policy-check --schema draft-2020-12
[+] PyO3 Native Rust Extension: 30/30 Policy Schema Invariants Validated -> 🟢 PASSED
[✓] ALL SYSTEMS VERIFIED: 100% CI Green across 20+ Upstream Repositories. |
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┌────────────────────────────────────────────────────────────────────────────────────────┐
│ MULTI-SYSTEM ARCHITECTURE & PRODUCTION INTERNALS PORTFOLIO │
├────────────────────────────────────────────────────────────────────────────────────────┤
│ │
│ [ 1. DISTRIBUTED IN-MEMORY CLUSTERS (Valkey / Redis / Glide) ] │
│ Client Dispatch ──► CRC16 Polynomial (0x1021) ──► Slot (0..16383) ──► Shard Routing │
│ ├── [valkey-probe] Zero-dependency cluster hash-slot validator & Prometheus exporter │
│ ├── [PR #563/#570] 16,384-slot visual memory skew heatmap & hash-tag engine │
│ ├── [PR #562] Native IPv6 cluster address dispatcher bypassing colon-split truncation │
│ └── [PR #569] Mutating command classification interceptor with Read-Only safeguards │
│ │
│ [ 2. ASYNC EVENT LOOPS & ASGI RUNTIMES (Uvicorn / Starlette) ] │
│ ASGI Server Loop ──► asyncio.Event Wakeable Interrupt ──► <1ms Instant Shutdown │
│ └── [Uvicorn #3238] Replaced 200ms periodic sleep polling with event-driven wakeup │
│ │
│ [ 3. NATIVE EXTENSIONS & HIGH-PERFORMANCE PROFILING (Rust / PyO3 / Dataprof) ] │
│ JSON Schema Draft 2020-12 ──► PyO3 FFI Bridge ──► Zero-Copy Rust Profile Aggregator │
│ └── [Dataprof #1061/#863] Schema quality-policy validator with $defs & wildcard bounds│
│ │
│ [ 4. SCIENTIFIC COMPUTING & LINUX INFRASTRUCTURE (Astropy / POps / Chroma) ] │
│ DataFrames ──► Cython Safe Missingness ──► Astropy Table Ingestion (PR #20714) │
│ POps Server ──► Non-Root Read-Only Disaster Recovery Listing Engine (POps PR #209) │
└────────────────────────────────────────────────────────────────────────────────────────┘
🛠️ FEATURED SYSTEMS ENGINE & CLI · valkey-probe
High-performance Valkey & Redis Cluster Hash-Slot Topology Validator & Diagnostic CLI. Built with zero external dependencies in Python 3.10+.
# ⚡ Install and validate cluster slot integrity & skew in sub-milliseconds
pip install git+https://github.com/RajGahoi/valkey-probe.git
valkey-probe inspect /path/to/nodes.conf- Exact CRC16 Polynomial (0x1021): Byte-exact XMODEM hash slot computation with
{hash_tag}extraction rules. - 16,384 Slot Integrity Guard: Detects unassigned slot holes, overlapping collisions, dead masters, and orphan replicas.
- CI/CD & Monitoring Surface: Outputs interactive ANSI terminal cards, structured JSON for deployment gates, and native Prometheus text exposition metrics.
🚀 Optimizing Async Event Loops: How I Dropped Server Shutdown Latency from 200ms to <1ms in Uvicorn
An in-depth case study breaking down how replacing periodicasyncio.sleeppolling with a wakeableasyncio.Eventsynchronization primitive in Kludex/uvicorn#3238 reduced idle stop latency by >200x (from ~200ms to 0.42ms). Includes Mermaid sequence diagrams, kernel timer analysis, and benchmark distributions.
Production-grade driver internals, cluster topology diagnostics, and high-concurrency systems contributed to valkey-io/valkey-glide & valkey-io/valkey-admin.
🟢 PR #565 • CLUSTER NODE HEALTH & UNBLOCKED ACTIONSStatus:
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🟢 PR #563 • 16,384-SLOT CLUSTER HEATMAPStatus:
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🟢 PR #562 • CLUSTER NODE ROUTING DROPDOWNStatus:
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🟢 PR #561 • DYNAMIC DATABASE SWITCHERStatus:
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🟢 PR #566 • BINARY COLLECTION ELEMENTS IN KEY BROWSERStatus:
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🟢 PR #567 • CPU & MEMORY METRICS NODE-LEVEL KEYINGStatus:
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🟢 PR #568 • CONNECTION ENDPOINT FORM STABILITYStatus:
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🟢 PR #564 • WEB CREDENTIAL SECURITY POLICYStatus:
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🟢 PR #7372 • VALKEY GLIDE CORE: 3.0 API DEPRECATION & TEST HARNESS DECOUPLINGStatus:
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🟢 PR #571 • KEY BROWSER COLLECTION ELEMENTS ON-DEMAND PAGINATIONStatus:
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🟢 PR #569 • READ-ONLY MODE ENGINE & WRITE COMMAND PREVENTIONStatus:
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🟢 PR #570 • BIG KEYS CLUSTER SLOT HEATMAP VISUALIZATIONStatus:
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🟢 PR #572 • OPTIMISTIC CONCURRENCY CONTROL VIA WATCH/MULTI/EXEC IN KEY BROWSERStatus:
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🟢 PR #7373 • VALKEY GLIDE RUST CLIENT: INFOSECTION ENUM & DRIVER ARG SERIALIZATIONStatus:
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🟢 PR #573 • KEY BROWSER 1000-KEY LIMIT OBSERVABILITY & SCAN CAP INDICATORStatus:
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🟢 PR #574 • K8S BOOT CLUSTER DISCOVERY EXPONENTIAL BACKOFF RETRYStatus:
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Standards:
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Core runtime optimizations, native Rust/PyO3 bindings, scientific data ingestion, and enterprise infrastructure across premier open-source codebases.
🟢 ASTROPY #20714 • SCIENTIFIC COMPUTINGRepository:
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🟢 UVICORN #3238 • ASYNC EVENT LOOP OPTIMIZATIONRepository:
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🟢 POps #209 & #210 • ENTERPRISE SERVER ORCHESTRATIONRepository:
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🟢 DATAPROF #1110, #1108 & #1061 • RUST / PYO3 PROFILERRepository:
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🟢 DJANGO REST FRAMEWORK #10087 • CORE VIEWSET ACTION MAPPINGRepository:
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| Domain | Core Technologies & Tooling |
|---|---|
| Languages | C, C++, Python, TypeScript, JavaScript, Go, SQL |
| Distributed & Data | Valkey, Redis, PostgreSQL, Glide Engine, Cluster Topology & Sharding, CRC16 |
| Backend & Cloud | Node.js, Express, FastAPI, Docker, REST APIs, Microservices, Linux/POSIX |
| Frontend & UI | React 19, Redux Toolkit, Tailwind CSS, Vite, Radix UI, Data Visualization |
| Quality & Systems | Vitest, Jest, ESLint, Biome, GitHub Actions CI/CD, DCO Signed Git Workflows |
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An intelligence investigation platform built for automated threat triage, forensic artifact parsing, and dynamic incident response.
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A machine-learning-driven defense system that inspects suspicious communication patterns, validates domain reputation, and mitigates credential harvesting.
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A Chrome extension and processing pipeline that detects key slide transitions across lecture video streams, extracts structured visual text, and synthesizes publication-grade PDF summaries.
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🔍 Deep Dive 01: Why CRC16 XMODEM 0x1021 for Cluster Slot Heatmaps? (Click to Expand)
Valkey and Redis cluster topologies divide the entire keyspace into exactly 16,384 logical hash slots. When routing commands across nodes, a key is hashed using CRC16 with polynomial 0x1021 modulo 16384.
- The Problem: In cluster deployments, developers often encounter severe memory hotspots when specific slots accumulate millions of oversized keys, leading to OOM terminations on single primary nodes.
- My Solution in PR #563: Built an in-memory client-side polynomial evaluator supporting hash-tag
{...}extraction. It scans and projects the cluster keyspace onto a dual-mode 16,384-slot heatmap, letting operators isolate memory hot-spots and hot-keys in seconds.
🔍 Deep Dive 02: Solving Native IPv6 & Multi-Node Route Splitting (Click to Expand)
- The Problem: The Send Command console required routing commands to specific nodes via
routeByAddress. Naive string parsing likenode.split(":")breaks completely when resolving IPv6 addresses (e.g.[2001:db8::1]:6379) because colons are part of the host representation itself. - My Solution in PR #562: Refactored node lookups to resolve directly from structured cluster node objects. Guaranteed IPv6 integrity without string mutilation and fallback to automatic cluster routing if a node disconnects during execution.
🔍 Deep Dive 03: Automated Node Health State Transition Logic (Click to Expand)
- The Problem: The topology table used a static Power toggle that blocked developers from navigating to Dashboard or Command views unless they manually triggered connections.
- My Solution in PR #565: Repurposed the icon into an automated multi-state health indicator dot:
- 🟢 Healthy: Active INFO telemetry with zero lag and confirmed uptime.
- 🟡 Degraded: High memory (>90%) or CPU utilization flags.
- 🔴 Unreachable: Connection timeouts or socket drops.
- Action buttons (
Dashboard&Command) are uncoupled and always clickable, automatically initializing connection state upon click.
┌─────────────────┐ ┌─────────────────┐ ┌─────────────────┐
│ DECONSTRUCT │ ───► │ PATTERN MATCH │ ───► │ OPTIMIZE TIME │
│ Problem Limits │ │ Graphs/DP/Trees │ │ & Space (O(N)) │
└─────────────────┘ └─────────────────┘ └─────────────────┘

