Optimizing SaaS product

Architecture
• Multi-Tenant SaaS Maturity Model
• SOA
• Services are Offered as API
• Every API is Self-Contained, Stateless, Authenticated and Authorized
• Using Latest Microsoft Technology Offerings
• Algorithm driven Parsing Services
• Distributed Architecture
• Every Web Module, Database, and Background Services can run on separate machines
• Branding capable
• Live and working

net 4.5 + . .net linq,
• SQL & mongo db,
• window server .,
• netwcf,
• j Query , ajax ,HTML,CSS,json
• DEVELOPMENT DONE :
• Total ASPX : 700+
• Total DLL : 30
• Lines Of Code : 9 Lac+
• Database Tables : 1200+
• Stored Procedures : 1300+
The Immediate Work to be done
1. Migration from SQL 2008 to 2016
2. Couple of Services were not getting fired
3. Server and SQL tuning and performance
4. Few of services to called from different locations to optimize the perfornmce
5. OLD API consumed from portal and other places not worked due to changes – to reactivated
6. SMS , VOIP conference not working – to reactivate them
7. Optimising of one or two routine
8. Rest to be discussed
9. Coding work is on the least
The Person I am looking for
1. Full stack developer
2. Very good understanding of ApI and SOA
3. Hands on developer
4. Also Understands data base and server issues
5. 5 years Plus of experience on cloud projects
6. Expertise in fiddler and other debug techniques etc
7. There is very good documentation – step by ste=p , process by process and page by page