Sahil Nawaz

Software Development Engineer I — NikahForever

June 2026 – Present · Delhi, India

• Cut a high-traffic API from 6–7s to 200–300ms with query rewrites, composite indexes, and an app-level cache; shipped an account-lifecycle cron that archives deletions across MySQL, Firebase, S3, and Zoho CRM and restores them if the user returns within the retention window
• Built real-time chat moderation where TypeSafe's Jev model scores messages and flagged ones reach the receiver blurred with tap-to-reveal — fails open on timeout, is gated by app version, and stays in sync across MySQL, the Node outbox, and Firebase
• Building Coco, an AI triage agent in Slack and Jira that verifies escalations against read-only production MySQL and the PHP, Node, and Flutter codebases before filing tickets, and dedupes them by error signature
• Own the Auto Web Dialer end to end — a lead-prioritisation engine on Exotel WebRTC that scores and queues 50 contacts per agent from ML signals, payment intent, and plan-visit data, feeding a multi-gateway payments layer (Razorpay, Cashfree, PayGlocal) that picks the gateway at runtime by success rate per country and currency
• Architected the AI hiring platform at career.nikahforever.com — GPT-4o resume screening, MCQ and subjective rounds, an optional coding challenge, and a 15–25 minute voice interview with GPT-4o Vision + WPM anti-cheat and support for 12 Indian languages via ElevenLabs and Sarvam AI
• Rebuilt the NikahForever web app (web.nikahforever.com) from scratch on Next.js 16 and React 19 — OTP auth, a 4-stage identity check (selfie, document, number, profile), real-time chat, and a subscription + profile-boost funnel on Cloudflare edge behind a backend gateway that proxies every API call
• Built a GitHub Actions cache-warming pipeline that keeps 38,718 SEO pages fresh across 3 regions (US, Germany, India) so Cloudflare serves most traffic from the edge — 98%+ success rate with no always-on server

Software Development Engineer Intern — NikahForever

December 2025 – May 2026 · converted to full-time · Delhi, India

• Built GoSalam.com, a travel agency site fully configurable from an admin portal with no code changes, plus a full-stack CRM that centralised enquiries and leads — 200+ live enquiries handled in the first two weeks
• Engineered a feedback intelligence platform (React · Node.js · PostgreSQL) that scores call recordings, app-store reviews, and support tickets through a 5-stage AI pipeline, cutting manual processing effort by 85%
• Built a WhatsApp notification pipeline (WATI API) and an AI SEO content system generating 1,700–2,200 word landing pages via OpenAI, with atomic DB-claim locking to prevent duplicate API calls under concurrent traffic
• Implemented RBAC with JWT authentication securing role-based dashboards and sensitive business data
• Converted to a full-time SDE role after shipping production improvements on a live system with zero downtime

Web Developer Intern — Tussle Digital

June 2025 – November 2025 · Gurugram, India

• Built a secure AI Chat API using Node.js and Azure OpenAI Foundry with dual memory layers (short-term + long-term via embeddings) for continuous, context-aware conversations across sessions
• Architected Kanban, Gantt, Table View, and Workload modules in React and MongoDB with WebSockets for real-time synchronisation — enabled the team to track 30+ client tickets daily
• Developed a ClickUp-integrated client dashboard with Next.js featuring minute-by-minute auto-refresh and colour-coded due-task indicators
• Built secure multi-tenant admin dashboards with role-based access control (RBAC) using React.js, Node.js, and MongoDB
• Managed 10+ client websites using WordPress; executed HubSpot EDM campaigns for 5 clients — reduced manual email management effort by 30%

Shopify Developer — Freelance

November 2024 – January 2025 · Remote, Delhi, India

• Delivered a high-performance Shopify e-commerce store with custom Liquid modifications in under 4 weeks
• Improved SEO score by 35% and reduced page load time by 28% through structured data and performance optimisations
• Grew organic traffic by 40% within the first month by implementing SEO best practices and clean storefront architecture
• Integrated third-party apps for automated inventory tracking and real-time client alerts, resolving 80% of post-launch operational issues within one month
• Increased overall store efficiency by 30% through streamlined workflows and app integrations

NF-Web — NikahForever Web Platform

Rebuilt NikahForever's web app from scratch on Next.js 16 / React 19 — OTP-based auth, a 4-stage identity verification pipeline (selfie, documents, number, profile), real-time chat, and a subscription/boost funnel wired to an autodialer CRM for checkout recovery. Deployed on Cloudflare edge.

Tech: Next.js 16, React 19, TypeScript, Firebase, Cloudflare Workers, CSS Modules

NEXUS — Sovereign AI Desktop App

Local LLM desktop workspace that runs entirely on the user's hardware. A hardware-aware pre-warm pipeline probes VRAM at startup and loads the likely model ahead of time, cutting first-token latency by ~2.5s. Routes across llama.cpp, Ollama, and cloud models through one interface, with MCP-powered real-time web search.

Tech: Electron, React, TypeScript, node-llama-cpp, SQLite, MCP Protocol

Nudge Dev — AI Developer Tooling Suite

Three published VS Code extensions — Nudge Dev, where six AI personas debate your plan before you write a line (with an autonomous Guard Loop before and after every task), Nudge Junior, and BranchMap File Tree. 5k+ combined downloads on Open VSX.

Tech: TypeScript, Node.js, DeepSeek R1, Groq, Gemini, SQLite

HireML.ai — AI Hiring Platform

End-to-end AI hiring platform with resume screening, MCQ rounds, coding challenges, and 15–25 min AI voice interviews with anti-cheat (GPT-4o Vision) and 12-language TTS/STT.

Tech: Next.js, TypeScript, PostgreSQL, Prisma, GPT-4o, ElevenLabs, Sarvam AI

Nikah Forever Feedback Intelligence Engine

5-stage AI pipeline that scores call recordings, app-store reviews, and support tickets into ranked product pain points — cut manual processing effort by 85%.

Tech: React, Node.js, PostgreSQL, OpenAI, Supabase, Exotel API

FlutterEngine.com — Community Docs Platform

Advanced Flutter documentation and community platform built in collaboration with a Flutter developer. Owned the frontend architecture, design system, and deployment pipeline.

Tech: React, TypeScript, Tailwind CSS

Nudge Junior — Companion VS Code Extension

Lightweight companion to Nudge Dev for in-editor AI nudges and code quality hints. Part of the Nudge Dev suite (5k+ combined downloads on Open VSX).

Tech: TypeScript, VS Code API, Node.js

Food Pre-order System

MERN-based food ordering platform — reduced campus wait times from 30 to 15 minutes with real-time order tracking and authentication.

Tech: MongoDB, Express.js, React, Node.js

MentorConnect

Mentorship platform with secure role-based auth, 2-step verification, and separate flows for mentors and mentees.

Tech: Next.js, TailwindCSS, ShadCN, Mailtrap

Focus Browser Extension

Productivity extension that disables the screen for 20 seconds on tab switch to break distraction cycles. Open-sourced on GitHub.

Tech: Manifest V3, JavaScript, Chrome APIs

Breast Cancer ML Classifier

Python ML model achieving 96% accuracy in classifying breast cancer cases with an interactive Streamlit interface.

Tech: Python, Scikit-learn, Pandas, Streamlit

Carbon Footprint Calculator

Environmental impact estimation tool with 5+ personalised reduction strategies to help users cut daily carbon emissions by up to 20%.

Tech: Python, Data Analysis, CLI

MailSetu — Email & SMS Delivery SaaS

Transactional email + SMS delivery platform with a REST API, SPF/DKIM/DMARC domain verification, HMAC-signed webhooks, Razorpay + GST invoicing, BullMQ async delivery, and a full sandbox mode.

Tech: Next.js, Node.js, PostgreSQL, BullMQ, Redis, Stalwart SMTP

Multi-Region Cloudflare Cache-Warming Platform

Automated GitHub Actions system that warms Cloudflare cache for 38,718 SEO landing pages across US, Germany, and India via regional SOCKS5 proxies — with retries, resumable progress, and secret-managed proxy config. Recorded a 98.2% success rate across 27,768 warmed URLs and 10,943 Cloudflare cache HITs in a single production run, reducing avoidable origin traffic.

Tech: GitHub Actions, Python, Bash, Cloudflare Tiered Cache, CI/CD

Coco — AI Triage Agent for Slack & Jira

AI agent that verifies support escalations against read-only production MySQL and the PHP, Node, and Flutter codebases before filing Jira tickets, and dedupes them by error signature so engineers only see real, unique bugs.

Tech: Node.js, LLM Agents, Slack API, Jira API, MySQL

Real-time Chat Moderation

Message-level moderation where TypeSafe's Jev model scores chat messages and flagged ones arrive blurred with tap-to-reveal. Fails open on timeout, gated by app version, kept in sync across MySQL, a Node outbox, and Firebase.

Tech: Node.js, MySQL, Firebase, Outbox Pattern

BranchMap File Tree — VS Code Extension

Generates a clean, copy-ready file tree of any project for docs, PRs, and AI prompts. Part of the Nudge Dev suite on Open VSX.

Tech: TypeScript, VS Code API