Senior Python Backend Developer - REMOTE / Work From Home (1-2-Month Contract) Job in CyberPeak Technologies - FZCO Lahore, Pakistan

Job Description : Job Description - Senior Python Backend Developer Project Overview: Build a comprehensive AI-powered security scanning and web template platform in 30 days. The system will provide automated vulnerability assessment for operating systems and networks, combined with an intelligent template engine for web development. Existing Codebase (What you receive): You will receive a complete, structured codebase including: Full Docker configuration (PostgreSQL with pgvector, Redis, Celery, FastAPI, Nginx) 15+ Database models with proper relationships (users, files, topics, conversations, templates) Authentication system (JWT with refresh tokens, user management) File processing pipeline (upload, validation, storage, classification) AI service framework (ready for local model integration) API structure (partially implemented endpoints for auth, chat, files) Utility libraries (file processing, text analysis, validation) Background worker setup (Celery tasks structure) What Needs to Be Built (30-Day Milestones): Week 1: Foundation Migration - $1250 JSON PostgreSQL Migration: Migrate 100% of existing JSON data (users.json, hashes.json, index.json, feedback_index.json, flags.json, categories_index.json) with validation and rollback mechanisms In-Memory Database Sessions: Replace insecure sessions = {} dictionary with robust database-backed authentication system using JWT with device tracking and rate limiting Deploy and configure Docker environment (all containers running) Set up local AI model integration (replace OpenAI dependencies) Ensure core authentication and file upload systems work Week 2: Core Modules - $1250 pgvector Integration for AI Learning: Extend database schema for vector embeddings, create embedding pipeline for existing content and feedback, implement similarity search Build security scanner module for OS vulnerability detection Implement network security assessment tools Create template database system with initial 50+ web templates Integrate local AI models for intelligent classification Week 3: Interfaces APIs - $1250 Develop comprehensive CLI with 20+ administration commands Complete all missing API endpoints (admin, system, templates) Implement WebSocket system for real-time processing Finish template engine and generation system Week 4: Production Deployment - $1250 + $3,000 Bonus Docker Production Deployment: Create production Docker configuration with all services, implement monitoring, backups, SSL/TLS Security hardening (rate limiting, SQL injection protection, XSS/CSRF protection) Full documentation and deployment scripts Final production deployment and live demo Total Compensation: $5,000 + $3,000 performance bonus = $8,000 USD 1-2months. Job Specification : Required Skills Experience: Core Technologies (Mandatory): FastAPI - Production experience building and deploying FastAPI applications Docker Docker Compose - Multi-container application deployment and management PostgreSQL + pgvector - Database design, optimization, and vector similarity search Local AI Models - Experience with LLaMA.cpp, Mistral, or similar local LLM integration Security Tools - Practical experience with vulnerability scanners and network assessment tools Data Migration - JSON/NoSQL PostgreSQL migration with data integrity Session Management - JWT implementation, database sessions, security best practices Development Skills: Database design and optimization with SQLAlchemy 2.0 Background task processing with Celery and Redis Real-time application development with WebSockets Command-line interface development (Click/Typer) Professional Requirements: Ability to work independently with minimal supervision Strong problem-solving and debugging skills Excellent communication for daily progress updates Proven track record of meeting hard deadlines Experience delivering production-ready systems Application Requirements: Send your application including: Description of 3 relevant projects you've built and deployed (with links to code/live) Migration Experience: Examples of JSON SQL or similar data migrations Local AI Experience: Explanation of experience with local AI models vs cloud APIs Security Tools Experience: Examples of security tools or scanning systems you've worked with Confirmation of immediate availability for 30-day commitment Practical Test (Optional): python # Task: Write a migration script for users.json # Input: users.json (old format) # Output: SQLAlchemy User Model instances # Bonus: Show validation + rollback mechanism Daily Process: Daily Standup (30 minutes): 09:00 UTC What was achieved yesterday? (with code screenshare) What is planned for today? (concrete tasks) Any blockers? (communicate immediately) Show git commits (daily commits required) Weekly Review: Fridays 16:00 UTC Milestone review with live demo Code review of the week Feedback adjustments Detailed plan for next week Important Notes: No intermediaries. No agencies. Direct contract with proven senior developer Full-time commitment: 8 hours/day, 5 days/week Daily git commits and progress updates required CEST timezone preferred for collaboration hours Start date: Immediate upon acceptance (within 48 hours) Duration: 30 days fixed timeline Final Deliverables: Fully migrated PostgreSQL database from JSON Secure JWT authentication with database sessions pgvector integration for AI learning from feedback Docker production deployment with monitoring Security scanner for OS network assessment Template engine with 50+ web templates CLI tool with 20+ commands WebSocket real-time system 100% API coverage Complete documentation Live production system Everything in 30-60 days for $8,000. Job Rewards and Benefits : Incentive Bonus

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