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Full-Stack Developer for AI-Powered SaaS PlatformFreelanceJobsCanada
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Full-Stack Developer for AI-Powered SaaS Platform

FreelanceJobs
  • CA
    Canada
  • CA
    Canada

Über

ABOUT PIXEL PHARMA
We are building an AI-powered document intelligence platform for the pharmaceutical validation industry. Our MVP is already structured and coded in Lovable (backed on GitHub), but we need an experienced developer to complete the backend, database architecture, security features, and AI integration.
We are a Swiss-based startup (Visp, Valais) with strong market validation from industry leaders like Lonza. This is a contract-to-hire opportunity with potential for long-term collaboration as we scale.
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WHAT YOU'LL BUILD
Complete the MVP of our retrieval-first AI platform that helps pharmaceutical engineers search, retrieve, and draft validation documents (protocols, SOPs, etc.).
WHAT'S ALREADY DONE:
Frontend UI (built in Lovable)
Basic project structure (GitHub repository)
Website design and branding
Product roadmap and specifications
WHAT YOU NEED TO BUILD:
1. Database Architecture
- Design and implement a scalable database schema (PostgreSQL or similar)
- Handle document storage, versioning, and metadata
- User management and permissions system
2. Backend API
- Build RESTful API endpoints or Python/FastAPI)
- Authentication and authorization (JWT, OAuth)
- File upload and processing pipelines
3. Security Features
- Implement role-based access control (RBAC)
- Data encryption (at rest and in transit)
- Compliance with basic security standards (GDPR-ready)
4. AI Integration (RAG System)
- Integrate AI models for document retrieval (OpenAI, Anthropic, or open-source LLMs)
- Build a Retrieval-Augmented Generation (RAG) pipeline
- Implement semantic search using vector databases (Pinecone, Weaviate, or ChromaDB)
- Train/fine-tune models to retrieve relevant information from uploaded documents
5. Integration & Deployment
- Connect frontend (Lovable) with backend
- Deploy to cloud (AWS, Google Cloud, or Vercel/Railway)
- Set up CI/CD pipeline (GitHub Actions)
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REQUIRED SKILLS:
- 5+ years of full-stack development experience
- Strong expertise in JavaScript/TypeScript , React)
- Experience with database design (PostgreSQL, MySQL, or MongoDB)
- Experience building RESTful APIs and backend architecture
- Knowledge of authentication/authorization systems (JWT, OAuth)
- Experience with AI/ML integration (OpenAI API, LangChain, or similar)
- Understanding of RAG (Retrieval-Augmented Generation) systems
- Experience with vector databases (Pinecone, Weaviate, ChromaDB, or FAISS)
- Familiarity with cloud deployment (AWS, GCP, Azure, or Vercel)
- Strong problem-solving skills and ability to work independently
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NICE TO HAVE:
- Experience with or similar low-code platforms
- Knowledge of pharmaceutical/healthcare industry or regulated environments
- Experience with document processing (OCR, PDF parsing, NLP)
- Familiarity with Python (for AI/ML workflows)
- DevOps skills (Docker, Kubernetes, CI/CD)
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DELIVERABLES:
Phase 1 (Weeks 1-4): Database schema, Backend API with authentication, Basic RAG pipeline
Phase 2 (Weeks 5-8): Advanced AI features, Security hardening, Frontend-backend integration
Phase 3 (Weeks 9-12): Production deployment, Performance optimization, Documentation
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WHY JOIN PIXEL PHARMA?
Early-stage opportunity with strong market validation (Lonza endorsement)
Impactful work solving real problems in a $15B+ industry
Direct collaboration with experienced founders
Equity potential for long-term contributors
Flexible remote work from anywhere
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TO APPLY:
Please submit:
1. Your Resume/CV and Portfolio (GitHub, live projects)
2. Brief cover letter answering:
- Why are you a good fit for this role?
- Have you built RAG systems or AI-powered applications before? (Share examples)
- What is your experience with database design and backend architecture?
3. Your expected hourly rate (in USD)
4. Availability: When can you start? How many hours per week?
Let's build the future of pharmaceutical validation together
Contract duration of 1 to 3 months. with 30 hours per week.
Mandatory skills: , API, Database Architecture, Artificial Intelligence, Python
  • Canada

Sprachkenntnisse

  • English
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