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Rohit Kumar Raifull-stack / ai
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Resume ↓
Open to full-time · Remote worldwide

Full-stack engineer
building AI-powered products_

I’m Rohit Kumar Rai — a product-minded developer shipping real-time SaaS, AI agents and automation. I build the full slice: clean frontends, reliable backends and the retrieval, billing and pipelines that keep them honest in production.

View live projectsDownload resume
currently — building AI agents & real-time SaaS · final-year B.Tech (AI & DS)
Next.jsTypeScriptNode.jsPythonLangGraphPostgreSQLChrome MV3Stripe
15+
Products shipped
2
Chrome exts acquired
99.8%
Uptime in production
10k+
Req/min pipelines
Next.jsReactTypeScriptNode.jsPythonFastAPIPostgreSQLRedisPrismaLangChainLangGraphRAG · pgvectorOpenAI · ClaudeChrome MV3n8nStripeDockerWebSocketAWSNext.jsReactTypeScriptNode.jsPythonFastAPIPostgreSQLRedisPrismaLangChainLangGraphRAG · pgvectorOpenAI · ClaudeChrome MV3n8nStripeDockerWebSocketAWS
01/ about

I don’t build
tutorial projects.

I like building things that actually ship— real products, real users, real edge cases. Fluxpage is a solo SaaS I grew from a personal problem into a monetised product with paying users, and I’ve had two Chrome extensions acquired by real companies.

My edge is combining full-stack engineering with AI & automation architecture — RAG agents, retrieval pipelines and the billing, monitoring and infra that keep them alive. At Optymatch I ran pipelines handling 500+ daily extractions at 99.8% reliability; at Bridge Healthcare I shipped HIPAA-aligned ETL that cut data retrieval time by 30%.

I’m in my final year of B.Tech (AI & DS), looking for remote roles where I can own features end-to-end — from the first UI sketch through to the production deploy, and then operate them.

Education
B.Tech · AI & Data Science
Arya College of Engg · 2023–2027
Experience
1.5+ yrs shipping
Production + freelance SaaS
Location
Jaipur, India
Remote · Worldwide
Availability
Immediate
Full-time / contract
02/ selected work

Real products. Real users.

fluxpage.com
paste → linkedin.com/jobs/senior-engineer
› scraping job spec…
› matching keywords · 50+ specs
› tailoring resume · GPT-4o
89%
ATS match score
✓ ready · 1.8s
2025 — Live·AI Resume SaaS · Solo buildMonetised

Fluxpage

AI resume-tailoring SaaS: paste a job URL, get an ATS-optimised resume in ~30s. Grew feature-by-feature from real user feedback into a paid product with a Chrome extension, Kanban tracker and LaTeX editor.

  • Live, monetised product with 100+ paying users on a subscription plan
  • Lifted ATS match accuracy from ~62% to 89% by mining keyword patterns across 50+ job specs
  • Cut tailoring latency 4.2s → 1.8s with Redis caching and connection pooling
  • Stripe billing with retry logic on failed webhooks; MV3 extension auto-detects job posts
100+
paying users
89%
ATS match
1.8s
tailor time
99.8%
uptime
Next.js 14Node.jsPostgreSQLPrismaOpenAI GPT-4oRedisStripe
fluxpage.com
hashtric.com/dashboard
trend #1
trend #2
trend #3
▲ 10,284 events/min · 150 countries
2025 — Live·Real-time Social Intelligence · SoloShipping

Hashtric.com

A real-time social-intelligence platform turning raw social data into actionable insight — trend tracking and sentiment scoring. Shipped solo across frontend, backend, AI pipelines and DevOps.

  • Real-time ETL processing 10k+ requests per minute with live WebSocket dashboards
  • NLP sentiment detection across 150+ countries for viral-trend scoring
  • Stripe subscription billing with webhook-driven lifecycle automation
  • Dockerised infra with partitioned PostgreSQL and 99.8% uptime over 6 months
10k+ RPM
throughput
150+
countries
99.8%
uptime
<2s
query latency
Next.jsNode.jsPostgreSQLRedisPythonWebSocketDocker
Live site
extension.active
› queue.enqueue(profile#421)
› worker: extracting…
› resume.pdf → OK (1.2mb)
› sync → talent-pool api
› ✓ 500/500 today · 99.8%
2025·Chrome MV3 · Acquired by Optymatch ATSAcquired

LinkedIn Profile Extractor

Production-grade Chrome MV3 extension automating talent sourcing for recruiters — background workers, anti-bot handling and direct ATS sync. One of two extensions I built and sold.

  • 500+ profile extractions daily at 99.8% reliability across LinkedIn, Naukri & Internshala
  • Recovered 0% → 99.8% after a Chrome update: Offscreen API + keep-alive, backoff and a dead-letter queue
  • Bulk recruiter mode: 100+ applicants with corruption-proof PDF resume downloads
  • Direct Talent-Pool API sync with binary-safe handling
500+/day
extractions
99.8%
reliability
0→99.8%
recovery
50×
batch size
Chrome MV3TypeScriptNode.jsn8nREST APIs
Chrome Web Store
agent.running
Gmail
AI agent
Slack
› trigger · new email → support
› agent: classify + draft reply
› action · post to #cx · ✓
› logged · 12s · $0.003
2024 — In beta·No-Code AI Automation · SaaSIn beta

Adaptive.im

No-code AI automation platform: describe a workflow in natural language and it compiles into an executable agent graph, integrating Gmail, Slack, Sheets and 20+ SaaS tools to run 24/7.

  • Natural-language builder that compiles prompts into executable agent graphs
  • Plug-and-play connectors for Gmail, Slack, Google Sheets, Notion and more
  • Built-in hosting, auth, monitoring and Stripe billing — zero infra setup for users
  • Agent runtime with retries, scheduling and observability for always-on execution
20+
integrations
24/7
agent runtime
0-config
hosting
Next.jsNode.jsLangChainLangGraphOpenAI APIPostgreSQLStripe
More builds
2026

AutoStream Agent

LangGraph · RAG · Lead capture

Production RAG conversational agent for autonomous lead capture — a LangGraph state machine with FAISS retrieval, guardrails and deterministic intent routing.

<3%hallucination (from ~15%)
LangGraphFAISSGroq Llama 3.1PythonTwilio
Source
2026

hash-verse

Full-stack RAG · Semantic search

A RAG system that compares YouTube videos against Instagram Reels side-by-side using semantic search over embedded transcripts.

92%relevance accuracy
Next.jsOpenAI embeddingspgvectorPostgreSQL
Live demo
2026

VoiceDev

Voice AI · Realtime API

A voice AI terminal agent — speak commands to a coding agent. Three-tier STT cascade (Groq → OpenAI → local Whisper) with push-to-talk and continuous VAD modes.

~200msvoice-to-command
OpenAI Realtime APIPythonFastAPIWhisper
Live demo
2026

ShortForm Factory

AI Video Generation · SaaS

Multi-format AI short-video generation platform producing 8 formats — AI avatar, quiz, documentary, meme-explainer, slideshow and more — on a Celery/Remotion render pipeline.

8video formats
Next.jsFastAPICeleryRemotionFFmpegDocker
GitHub
2024–25

Obsidian AI

Developer Platform · Freelance

In-browser AI dev environment with visual editing, Sandpack previews and tiered billing. Built landing, auth, billing and the full code-run surface.

1,000+active users
Next.jsNode.jsStripeSandpackE2BPrisma
2024

Real-Time Trend Analyzer

MERN · Geospatial · WebSocket

Real-time analytics dashboard visualising global Twitter trends with geospatial heatmaps and AI-powered insights.

10k+/mindata points
MERNPythonLeaflet.jsWebSocket
Live demoSource
2024

WeGoAuthentic.com

Production Travel SaaS · Full-stack

Travel platform with performance and SEO as first-class citizens — SSR, dynamic routing and a Stripe-backed booking flow.

25%faster paint
Next.jsTailwindNode.jsStripe
Live site
2025Acquired

ATS Resume Analyzer

Chrome MV3 · Acquired by Resumod.co

Chrome extension that turns any job post into instant, keyword-level resume feedback. The second of my two acquired extensions.

2ndextension acquired
Chrome MV3TypeScriptOpenAI API
More on github.com/rohitkumarrai7
03/ toolkit

What I build with.

Tools I reach for daily. I pick the stack that fits the problem — no religion, no hype, just what ships reliably.

Frontend Engineering

React.jsNext.jsTypeScriptTailwind CSSReduxSSR / SEO

Backend & Databases

Node.jsExpress.jsPythonFastAPIPostgreSQLMongoDBPrisma ORMRedisREST APIsWebSocket

AI & Automation

LangChainLangGraphRAGpgvector / FAISSOpenAI · Claude · GroqRealtime / Voice AINLPn8nChrome MV3

DevOps & Tools

DockerGitAWS (S3, EC2)VercelCeleryRemotion / FFmpegNginx

Specialised

Real-time SystemsETL PipelinesWorkflow AutomationHIPAA ComplianceStripe Payments
04/ experience

Where I’ve shipped.

Four roles spanning product, automation and SaaS — each shaped how I think about building reliable systems.

  1. 01
    May 2024 — Present·RemoteIndependent

    Indie SaaS Builder — Full-Stack

    Fluxpage · Hashtric · solo
    • Built and monetised Fluxpage — an AI resume-tailoring SaaS with 100+ paying users, ATS scoring and a Chrome extension.
    • Shipped Hashtric — real-time social intelligence processing 10k+ req/min at 99.8% uptime.
    • Owned everything end-to-end: Stripe billing, webhook automation, RAG pipelines, Docker infra and onboarding.
    Next.jsNode.jsPostgreSQLPythonStripeDocker
  2. 02
    Sep 2025 — Jul 2026·RemoteInternship

    Full Stack Developer

    Optymatch (Acclivity Software)
    • Engineered a Chrome MV3 extension processing 500+ daily LinkedIn, Naukri and Internshala extractions.
    • Built secure REST API integrations reducing manual data entry by 85%.
    • Architected self-healing workflows improving reliability by 40% at peak loads.
    Chrome MV3TypeScriptNode.jsn8nPostgreSQL
  3. 03
    Jun 2025 — Aug 2025·RemoteInternship

    Full Stack Developer

    Bridge Healthcare
    • Developed HIPAA-aligned Python ETL pipelines improving data retrieval speed by 30%.
    • Refactored legacy services to modern architecture, cutting processing latency by 25%.
    • Built responsive onboarding flows with better validation, reducing user drop-off by 15%.
    React.jsNode.jsPythonTailwind CSS
  4. 04
    May 2024 — Jul 2025·RemoteFreelance

    SaaS Developer

    Obsidian AI
    • Implemented Stripe billing and webhook-driven subscription lifecycle for 1,000+ users.
    • Designed API orchestration connecting sandboxed dev environments with sub-2s preview latency.
    • Built monitoring and alerting pipelines to raise uptime and cut mean-time-to-detect.
    Next.jsNode.jsStripeSandpackE2B
05/ why me

Hire me for the outcomes, not the stack.

A quick shortlist of what I bring to a team — and the impact metrics to back each one.

I ship. Fast.

15+ products shipped

A monetised SaaS with paying users, two acquired Chrome extensions and a stack of production AI builds. Track record > promises.

Product thinking

Founder mindset

I care about users, metrics and business outcomes — not just clean diffs. I design for conversion, retention and reliability.

End-to-end ownership

Full-stack + infra

Frontend, backend, AI pipelines, DevOps, billing. I can own a feature from whiteboard to production — and then operate it.

Performance-obsessed

Measured wins

Sub-2s previews, 40% latency cuts, 10k+ RPM pipelines. I measure, profile and only ship when the numbers tell a good story.

Impact, in numbers
89%
ATS match accuracy (Fluxpage)
85%
less manual data entry (Optymatch)
60%
AI API cost cut (RAG agent)
30%
faster data retrieval (healthcare)
150+
countries served by Hashtric
99.8%
uptime on production systems
Open to opportunities

Let’s build
something impactful.

I’m currently open to full-time remote roles, freelance projects and consulting engagements. Whether you need a full-stack developer, an AI automation specialist, or a technical co-founder — let’s talk.

rohitkumarrai008@gmail.com
github.com/rohitkumarrai7•LinkedIn•Jaipur, India · Remote worldwide
Quick intro
roleFull Stack · SaaS builder
focusAI agents, real-time systems, Next.js
noticeImmediate · Full-time or contract
basedIN · IST · remote-ready
replyusually within 24h
Fastest way to reach me: email with a 2-line pitch of the problem. I’ll reply with a yes/no + suggested next step.