## Job Description
We are looking for an experienced Full Stack Developer with strong backend development skills to work on a commercial SaaS/product-based application with software licensing features.
The candidate must have hands-on experience in backend architecture, API development, database management, authentication systems, and commercial software licensing implementation.
You will be responsible for maintaining and developing secure backend systems, licensing modules, customer activation systems, APIs, and admin dashboards.
## Required Skills
### Backend Skills
• Strong knowledge of Node.js / PHP / .NET / Python backend frameworks
• REST API development
• Authentication & authorization systems
• JWT, OAuth, session handling
• Server-side optimization & security
### Database
• Strong experience with Microsoft SQL Server (MS SQL)
• Query optimization
• Stored procedures
• Database design & maintenance
• Backup & recovery handling
### Licensing System Experience
• Commercial software licensing
• License key generation & validation
• Device-based activation systems
• Subscription/license expiry handling
• SaaS/product licensing logic
• Anti-piracy/basic security implementation
### Frontend Skills
• .net, c#, WPF, XAML preferred
• HTML, CSS, JavaScript
• Dashboard/admin panel development
### Additional Preferred Skills
• VPS/server management
• Git/GitHub
• LiteSpeed/Apache/Nginx basics
• Payment gateway integration
• API integrations
## Responsibilities
• Develop and maintain backend architecture
• Build licensing and activation systems
• Manage MS SQL database
• Optimize application performance
• Secure APIs and customer data
• Fix bugs and improve scalability
• Deploy updates and maintain production servers
## Candidate Requirements
• Must understand complete backend flow independently
• Problem-solving mindset
• Ability to work on commercial licensed products
• Good communication skills
• Long-term availability preferred
## Perks
• Long-term project
• Flexible working environment
• Performance-based increments
• Opportunity to work on commercial SaaS products