My cousin developed a comprehensive system for a client in Southern China within a total of 20 days. He created a large-scale website featuring multiple pages, integrating both front-end and back-end functionalities, as well as data interfaces. The system calculates various indicators and implements stock filtering processes for over 5,000 stocks. It also includes automated tasks, such as sending emails. The stock database contains over 1 million rows, yet the system delivers results in under 10 seconds.
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The estimated time and cost for a freelancer to develop the described system (including website development, front-end and back-end integration, data interfaces, indicator calculations, stock filtering, automation tasks, and handling a million-row database) depend on the complexity and the freelancer’s experience level:
1. Estimated Completion Time
Based on the complexity and skill level of the freelancer:
Junior Freelancer (limited experience, lower efficiency): Approximately 2-3 months, working 40 hours per week.
Mid-to-Senior Freelancer (experienced and efficient): Approximately 4-6 weeks.
Highly Skilled Developer or Team: With maximum focus and expertise, 2-4 weeks could be achievable.
Total estimated time: Around 160 to 480 hours.
2. Cost Estimation
Freelancer hourly rates vary depending on their expertise:
Junior Developers: $30-$60/hour
Mid-Level Developers: $60-$100/hour
Senior Developers/Experts: $100-$200/hour
Assuming a mid-level developer works 480 hours, the costs would be:
Minimum Cost: $30 × 480 = $14,400
Moderate Cost: $80 × 480 = $38,400
High-End Cost: $150 × 480 = $72,000
Developers with specialized experience in finance or stock data systems may charge higher rates.
3. Typical Pricing Models
Freelancers may charge:
Hourly Rates: Offers flexibility but requires accurate time tracking.
Fixed Project Fees: Based on overall project complexity, ranging from $20,000 to $50,000+.
4. Recommendation
For a balance of quality and cost, consider hiring a mid-level developer with hourly rates of $60-$100, with a total budget of around $20,000 to $35,000.
For higher quality and faster delivery, a senior developer may charge $50,000 or more.
This estimate applies to individual freelancers. Costs could be higher if outsourcing to a development company.
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