Full-Stack Developer (Forum + Marketplace Platform) — React / Next.js / Node / DevOps
Company : L4RG US LLC
Project : BlackHatSEO.co.in — Modern Forum + Marketplace Platform
Location : Remote
Experience Required : 4–8+ years
Job Type : Part-time . Freelancer / Contract (6–12 Months)
Start Date : Immediate
Experience : 5–10 Years
Apply : Email : l4rgindia@gmail.com
About the Role We are building a cutting-edge SEO & Growth Hacking Community + Marketplace , engineered for performance, security, and scale.
Think : BlackHatWorld 2.0 — rebuilt with modern architecture, real-time systems, advanced search, intelligent matching, and a secure escrow layer.
We’re hiring a Full-Stack Architect-level Engineer who can own the technical vision and build a world-class platform used by global marketers, growth hackers, affiliates, and online businesses.
Reference Forum Site : https : / / www.blackhatworld.com /
What You Will Build As our senior engineer, you will architect and implement :
Platform Modules Real-time Forum System (threads, replies, moderation dashboard)
Marketplace Engine (service listings, advanced filters, ratings, reviews)
Escrow Payment Workflow (fund-hold → deliverable → dispute → release)
Seller Performance Analytics (delivery time, conversion rate, dispute rate)
Advanced Search Engine using Meilisearch / Algolia
User Profile & Reputation System
Admin & Moderation Platform
Content Hub (SEO-optimized learning center)
What We Expect — Core Technical Skills Frontend React.js, Next.js 13 / 14 (App Router + RSC)
TailwindCSS + ShadCN UI
Zustand or Redux Toolkit
Strong understanding of SSR / SSG / ISR and SEO optimization
Pixel-perfect UX building skills
Backend Node.js + Express / NestJS
REST API architecture
Authentication : JWT, OAuth, RBAC
WebSockets (Socket.io)
Redis (queues, caching, session)
Prisma ORM
Database PostgreSQL (must)
Schema design for forums, search, transactions, disputes
Search Engine Meilisearch / Algolia
Index ranking rules, synonyms, relevance tuning
Payments Razorpay / Stripe
Webhook security
Split payments / payouts
Transaction monitoring
DevOps Vercel + GitHub Actions
Serverless functions
CDN, image optimization
Sentry / LogRocket
Bonus Skills (Huge Plus) Built a forum, SaaS community, or marketplace previously
Experience with escrow systems or wallet-based transactions
Knowledge of SEO, automation, growth hacking tools
Experience with load testing, large user bases
Security : rate limiting, anti-spam, bot detection
AI automation experience (Python or JS)
Experience Required 5–10 years professional full-stack development
Proven execution of large-scale platform (forum, marketplace, SaaS, community)
Ability to convert business requirements into scalable architecture
Strong product thinking & ownership mindset
What We Offer Work on a global product designed for millions of users
Full architectural freedom
High compensation for high performance
Zero bureaucracy — fast execution team
Long-term leadership role available
How to Apply Email : l4rgindia@gmail.com
Subject : Full-Stack Architect – BlackHatSEO.co.in
Attach :visit us : www,l4rg.com
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