Senior Real-Time Chat Platform Developer

We are looking for a senior real-time chat platform developer to build a fully functional MVP for penge.chat, a Danish anonymous chatroom platform.
This MVP is a national test version of our upcoming global platform RedRoom.Chat, so the architecture must be scalable and modular from day one.
The core functionality will be similar to superchat.dk, but built in a more robust, modern and global-ready architecture.
Scope of Work / Deliverables1. Real-Time Backend (Go or Node.js)
Build a scalable WebSocket-based real-time messaging backend
Support multiple chatrooms, high concurrency, and strong performance
Implement message handling, room creation, user sessions, typing indicators, blocking/ban logic
Create API endpoints for rooms, users, moderation tools
Set up Redis for pub/sub and caching
Logging, monitoring, and error-handling included
2. Frontend Web App (React / Next.js)
Mobile-optimized anonymous chat UI
Room list + active user count
Smooth chat experience (auto scroll, message grouping, timestamps)
User settings (nickname, simple avatar, etc.)
Moderation UI (kick, block, mute, room tools)
3. Anonymity & Security
Anonymous entry flow (no login required)
Anti-spam, message rate limits, simple content filters
Secure communication & server configuration
4. Infrastructure & Deployment
Dockerized environment
Deploy to AWS / DigitalOcean / similar
Documentation for future scaling (Kubernetes for global version)
5. Documentation
Tech stack documentation
API documentation
Setup instructions
Architectural overview (important for RedRoom.Chat global scaling)
RequirementsTechnical
Strong experience with real-time apps (WebSockets, Socket.io, WebRTC, etc.)
Expertise in Go or Node.js for backend
Experience building modular, scalable systems
Frontend skills: React / Next.js
Experience with Redis, MongoDB or PostgreSQL
Experience deploying cloud-based apps (AWS / GCP / DigitalOcean)
Portfolio Requirements
Previous work on chat apps, messaging systems, real-time platforms or communities
Code samples or GitHub links
Clear explanation of your role in past projects
Soft Requirements
Communicates clearly
Delivers high-quality, maintainable code
Can work with milestones and provide frequent updates
Comfortable signing NDA and transferring full IP rights
Time Frame
We expect the following timeline:
Phase 1 (MVP for penge.chat): 4–6 weeks
Phase 2 (Scaling foundation + documentation): additional 1–2 weeks
Total: 5–8 weeks depending on complexity and your availability.
Additional Notes
This project is long-term.
If collaboration is successful, we will continue into:
Phase 2: Global version (RedRoom.Chat) with scaling, load balancing, and global deployment
Phase 3: Native mobile apps (optional)
Phase 4: Premium features, AI moderation, VIP rooms, payment modules
We are looking for a serious, senior freelancer who wants a stable multi-phase project.

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