Subid
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Forward Deployed Engineer bridging cloud infrastructure, enterprise AI and high-performance software.
Kolkata, IN — operating globally · Engineer at Connect In Cloud
- Production uptime across client deployments
- 99.999%
- Manual audit labor eliminated for IOCL
- 90%
- Average turnaround from concept to production launch
- 2-4 Wks
- Client IP ownership with zero vendor lock-in
- 100%
(01)The story
Systems programming, cloud infrastructure and full-stack delivery — embedded directly with client teams to cut friction and ship production code.
At Connect In Cloud, I run 5+ production environments: container orchestration, automated deployments, resilient edge routing. In parallel I've shipped ridenoww.com (UK mobility, web + native) and deedpollservices.co.uk (UK legal SaaS with PDF automation and Stripe billing).
For Indian Oil (IOCL) I built an AI document-audit platform — schema-guided LLM extraction, Pinecone search, RabbitMQ queues — processing 5,000+ contracts a month and cutting manual review by 90%.
With M.it Services GmbH (Germany) I rebuilt a Rust/Tauri application core, moved it to official Windows bindings, and shipped concurrency-safe media capture across iOS and Android.
(02)Core disciplines
Cloud-Native & Kubernetes Infrastructure
Architecting high-availability production environments with robust SLAs. Expertise in container orchestration, ingress routing, GitOps workflows, automated zero-downtime rollouts, and persistent storage management across Linux and multi-cloud providers.
Kubernetes / Helm / GitOps / Zero-Downtime / Multi-Cloud
Enterprise AI & Workflow Automations
Building deterministic AI validation engines and schema-driven RAG pipelines. At IOCL, designed systems parsing 5,000+ contracts monthly using LangChain, Pinecone vector stores, and RabbitMQ message brokers, eliminating 90% of manual enterprise audit time.
LangChain / Pinecone / RAG / RabbitMQ / Contract Parsing
Low-Level Systems & Native Engineering
High-performance native development using Rust and Tauri. Refactored cross-platform window overlay frameworks, architected deadlock-free concurrent IPC systems, and delivered zero-latency native media streaming pipelines across Windows, iOS, and Android.
Rust / Tauri / Async IPC / Windows Win32 / Zero-Latency
Full-Stack Platforms & Payment Infrastructure
End-to-end full-stack architectures utilizing Next.js 16 (App Router), TypeScript, modern relational & document databases, Stripe billing integrations, automated PDF generation, and asynchronous BullMQ / Redis queues.
Next.js 16 / TypeScript / BullMQ / Redis / PostgreSQL / Stripe
(03)How I build
- 01
Zero-Downtime Resilience
System uptime isn't an afterthought. Architectural patterns must decouple failures via circuit breakers, asynchronous queues, and automated health checks to maintain flawless business continuity.
- 02
Observability As A Core Contract
If telemetry isn't real-time and actionable, troubleshooting is guesswork. Metrics, structured logging, and distributed tracing are integral to software delivery from day one, not bolted on after an outage.
- 03
Deterministic & Idempotent Automation
Manual intervention in deployment or failover is an operational vulnerability. Infrastructure should be codifiable, reproducible in any environment, and provably idempotent across configuration states.
- 04
Full Client IP & Zero Vendor Lock-in
Every platform, pipeline, and schema is delivered with 100% intellectual property ownership to the client. No proprietary platform dependencies, no recurring per-seat licensing traps, and clean, fully auditable codebases.
(04)The record
Resume (PDF)Connect In Cloud
Apr 2025 – PresentSenior Full Stack & Cloud Systems Engineer
- ↳Maintain 99.999% uptime SLA across 5+ production environments for global clients.
- ↳Built deedpollservices.co.uk end-to-end: UK legal SaaS with automated PDF legal generation, Stripe subscriptions, passkey auth, and transactional email.
- ↳Architected and deployed ridenoww.com: UK ride-hailing platform with React Native apps on App Store and Google Play, web portal, and real-time dispatch.
- ↳Designed containerized multi-tenant cloud architectures, reducing hosting spend by 35% through auto-scaling and caching.
Indian Oil Corporation Limited (IOCL)
Jul 2025 – Aug 2025Software Development Engineer — Enterprise AI
- ↳Engineered an enterprise document intelligence and RAG platform processing 5,000+ contracts and vendor invoices monthly, cutting manual audit labor by 90%.
- ↳Implemented declarative schema-based extraction pipelines with LangChain and Pinecone vector search, allowing non-technical auditors to configure document rules.
- ↳Designed deterministic rule-based semantic validation engines catching cross-entity contract discrepancies prior to financial sign-off.
- ↳Orchestrated asynchronous queue pipelines via RabbitMQ, achieving 3× processing throughput with auditable validation reporting.
M.it services & systems GmbH (Germany)
Dec 2025 – Feb 2026 (Remote)Systems Software Engineer
- ↳Audited and restructured high-performance Rust + Tauri native application, establishing platform abstraction gateways for multi-platform delivery.
- ↳Engineered low-latency native media capture pipelines on Android (MediaProjection, CameraX) and iOS (AVFoundation, ReplayKit).
- ↳Architected concurrency-safe IPC command handlers in Rust supporting 20+ concurrent invocations with zero thread starvation or memory leaks.
- ↳Migrated Windows bindings to the official Microsoft windows crate, ensuring strict memory safety.
Dobby Ads
Apr 2024 – Jun 2024 (Remote)Full Stack Developer (Internship)
- ↳Integrated Stripe Connect to let third-party agencies accept payments directly from their clients.
- ↳Shipped feature flagging via GitLab and Unleash for seamless feature rollouts.
- ↳Built Vercel-style DNS integration enabling custom subdomains for clients.
- ↳Implemented multi-role user management with CASL for fine-grained access control.
AwesomeSuite
Jul 2023 – Feb 2024 (Remote)ReactJS Developer (Internship)
- ↳Built dynamic, responsive UI for Awesome Social, a social networking management platform.
- ↳Managed application state and data flow with Redux, optimizing performance.
- ↳Integrated RESTful APIs for real-time data retrieval and updates across the app.