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Production Engineering Track Record

Architectural Seats & Production Systems

Three production seats owning multi-tenant isolation, high-throughput ERP scale, and real-time telemetry — with the architecture, invariants, and the numbers.

3
Production Seats

Multi-tenant AI, enterprise ERP scale, and real-time fleet systems

5,000+
Concurrent Users Handled

Zero incidents post-launch with 40% measured latency reduction

35 / 100
Models Tenant-Isolated

Two-layer Prisma + SQL Server RLS with CI merge gates

95%
Automated Test Coverage

Vitest, RTL, and golden evals across zero-downtime releases

PO
PostQodeCurrent Seat • Active Production

Software Engineer

Jul 2025 – Present
Bengaluru, India

Two-layer tenancy on 35 of 100 models, Eva with 21 RBAC-gated tool groups and golden evals in CI, and zero-trust Azure deploys into buyer subscriptions.

35 / 100
Tenant-Isolated Models
Two-layer isolation via Prisma middleware + SQL Server RLS
21
RBAC-Gated Tool Groups
Eva shopping agent with PII scrubbing & KB citations
2,000+
Golden Eval Lines in CI
Zero regressions merge-gate gating all release pipelines
Agentic Tenancy & Isolation StackArchitectural Invariants
Edge & Policy
• Azure Front Door
• APIM
• RBAC Policies
Isolation Core
• VNet Enclaves
• Prisma Middleware
• SQL Server RLS
Agent Runtime
• SSE Streaming
• PII Redaction
• LRU + Redis Licenses
Delivery Guard
• Trivy & SBOM
• Notation Signing
• ARM Rollback
Flagship Case Study: Multi-tenant AI Agent Marketplace
Explore ArchitectureExplore Architecture
NestJSNext.jsAzure ARMSocket.IONode.jsTypeScriptReactVapiLangChainGraphQL
EL
EL Nova LabsShipped & Scaled • Battle-Tested

Software Engineer

Mar 2024 – Jun 2025
Remote

Led 5 engineers on a React/Redux/GraphQL ERP for 5,000+ concurrent users; 40% load-time cut; RAG over 10,000+ docs at 85% retrieval accuracy; 95% coverage and zero-downtime releases.

5,000+
Concurrent ERP Users
High-throughput React, Redux, and GraphQL admin core
40%
Load Time Reduction
Normalized Redux state, route code-splitting, and memoization
95%
Automated Coverage
Vitest + RTL in blue-green GitHub Actions pipelines
Distributed ERP & Enterprise RAG PipelineArchitectural Invariants
User Interface
• React 18
• Code Splitting
• Normalized Redux
Data Engine
• GraphQL Gateway
• Node.js Services
• Memoization Cache
AI Extension
• LangChain RAG
• GPT-4 Notice Gen
• Voice Ingestion
CI Pipeline
• Vitest (95% coverage)
• RTL
• Blue-Green Deploys
Flagship Case Study: React ERP at 5,000 Concurrent Users
Explore Architecture
ReactRedux ToolkitGraphQLNode.jsTypeScriptGPT-4LangChainVitestReact Testing LibraryGitHub Actions
BI
Big Wings LLCProduction Deployed • Field Operating

Frontend Engineer

Jan 2023 – Feb 2024
Chandigarh, India

Sole frontend owner for fleet tracking of 200+ vehicles; Samsara ELD + WebSockets; emergency response 20 → 10 minutes.

200+
Fleet Vehicles Monitored
Live tracking via Samsara ELD APIs and persistent WebSockets
20 → 10 min
Emergency Dispatch Time
50% reduction in vehicle dispatch latency under crisis
O(1)
State Update Complexity
Normalized telemetry cache for zero-lag dashboard updates
Real-time Vehicle Telemetry & Dispatch GridArchitectural Invariants
Field Hardware
• Samsara ELD
• GPS Sensors
• Dashcam Stream
Stream Engine
• Persistent WebSockets
• Exponential Backoff
• Deduplication
State Machine
• Normalized Vehicle State
• O(1) Map Lookups
• Compound UI Kit
Dispatch Layer
• Emergency Geo-Routing
• Driver Alerts
• Cross-Vertical Shared Lib
ReactTypeScriptReduxWebSocketsSamsara ELD APIREST APIsJestGit

Looking for a Staff Full Stack AI Engineer?

I own production seats where architectural invariants, multi-tenant database isolation, real-time evals, and delivery pipelines are part of the product.

Schedule Architecture Review
rejisterjack

Full-stack engineer who owns production agentic systems — tenancy, tool-calling evals, and supply-chain-hardened delivery.

rejisterjack@gmail.com
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