You will get Database & API Performance Optimization Sprint | PostgreSQL · .NET · SQL
Project details
Slow queries and underperforming APIs silently kill user retention, block feature delivery, and inflate cloud bills. Most teams don't know exactly where the problem is — they just know things are slower than they should be.
I run a focused, time-boxed Performance Sprint: I go deep into your database and API layer, find exactly what's causing the degradation, and fix it.
What you get:
→ EXPLAIN ANALYZE on your slowest queries — indexed properly
→ Schema and stored procedure review — restructured where needed
→ N+1 query detection and elimination (EF Core, raw SQL, Dapper)
→ Connection pooling and caching layer review
→ API response time benchmarks — before and after
→ Written report: every change documented with the why
Stack coverage: PostgreSQL, MS SQL, MySQL, MongoDB, .NET Core 8/10 Web APIs, Entity Framework, Dapper, Redis, ElasticSearch.
Typical results: 60-80% query time reduction. Sub-second response on endpoints previously timing out. Delivered in 3-5 business days.
Not a generic audit report. Real changes in your real codebase.
I run a focused, time-boxed Performance Sprint: I go deep into your database and API layer, find exactly what's causing the degradation, and fix it.
What you get:
→ EXPLAIN ANALYZE on your slowest queries — indexed properly
→ Schema and stored procedure review — restructured where needed
→ N+1 query detection and elimination (EF Core, raw SQL, Dapper)
→ Connection pooling and caching layer review
→ API response time benchmarks — before and after
→ Written report: every change documented with the why
Stack coverage: PostgreSQL, MS SQL, MySQL, MongoDB, .NET Core 8/10 Web APIs, Entity Framework, Dapper, Redis, ElasticSearch.
Typical results: 60-80% query time reduction. Sub-second response on endpoints previously timing out. Delivered in 3-5 business days.
Not a generic audit report. Real changes in your real codebase.
Database Type
MySQL, MS SQL, SQLite, PostgreSQL, MongoDB, Teradata, Azure Cosmos DBWhat's included $1,200
These options are included with the project scope.
$1,200
- Delivery Time 7 days
- Number of Revisions 2
- Number of Tables Added 10
- Schema Diagram
- Permissions Setup
- Import/Export Data
- Admin Panel Setup
Optional add-ons
You can add these on the next page.
Fast 3 Days Delivery
+$500
Additional Revision
+$300
Additional Table Added
(+ 2 Days)
+$200Frequently asked questions
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LD
Lokesh D.
May 27, 2026
AI Developer for RAG and Knowledge Bases with using Nextjs, Python and .NetCore APIs
Vijay... is a highly skilled and refined Professional with strong technical skills and commitment. He takes care of my complex <Web and mobile Development project - using RAG, Agentic AI, React, .NetCore WebAPIs, multi LLMs orchestration, ultimate UI/UX and Backend Functions> requirements and completed the delivery on time and of high quality. Will continue to work with him on upcoming projects. Thanks Vijay
RL
Ramesh L.
Jan 23, 2017
WCF expert
Vijay is very good freelancer and completes work on time with greater quality. Will hire him again.
EJ
Ethan J.
May 9, 2016
Creation of a customer driven dynamic grids or views of data
VP
Vijay P.
Feb 27, 2015
ASP MVC5 CodeFirst AZURE Jquery Webpage
Thanks Vijay for your work!
VP
Vijay P.
Feb 6, 2015
Frontend Jquery/Javascript Expert
Great development resource. Very quick to respond and in timely manner. Quality of work and Quality of code is really great.
About Vijay
AI Integration Engineer | .NET + Next.js SaaS | LLM Costing | CTO
Nathdwara, India - 5:11 pm local time
My focus: integrating LLMs, automating workflows, and modernizing .NET or Node.js backends so your product works smarter and costs less to run.
─── What I do ───
→ Add AI features (chat, document parsing, lead automation, voice workflows) to existing SaaS products
→ Architect hybrid LLM systems using local models (Ollama + Qwen) + cloud APIs (Claude, OpenAI) to cut AI costs by 40–70%
→ Build and modernize .NET Core 8/10 APIs, Next.js 15 frontends, Angular 16–20 dashboards
→ Design multi-tenant SaaS architecture, PostgreSQL schemas, pgVector RAG pipelines
→ Act as a Fractional CTO for small SaaS teams who need senior technical leadership without full-time cost
─── My stack ───
Backend: .NET Core 8/10, Node.js, PostgreSQL, MS SQL, MongoDB
Frontend: Next.js 15, Angular 16–20, React, React Native
AI/LLM: Claude API, OpenAI, Ollama, Qwen, Semantic Kernel, RAG, pgVector, multi-agent pipelines
Infra: Azure, Supabase, Firebase, Docker
─── Why clients choose me ───
18+ years delivering enterprise software across India, USA, and UK. I have held senior roles at HiveGPT Inc. (USA) and Social27 (Seattle). I understand what enterprise clients need — security, scalability, and delivery that doesn't slip.
I work with a small, focused team. You get senior-level architecture and clean code — not juniors pretending to be seniors.
If you need someone who can look at your existing product, identify exactly where AI adds value, and implement it without breaking what already works — let's talk.
→ Message me "AUDIT" — I'll review your project and tell you exactly what architecture decisions will matter most.
Steps for completing your project
After purchasing the project, send requirements so Vijay can start the project.
Delivery time starts when Vijay receives requirements from you.
Vijay works on your project following the steps below.
Revisions may occur after the delivery date.
Audit & Diagnose
You share DB schema, slow query logs, and API endpoint list. I run EXPLAIN ANALYZE and benchmark current performance. Deliver a prioritized list of issues within 24 hours.
Optimize & Implement
I fix indexes, restructure queries, eliminate N+1 patterns, configure caching, and optimize connection pooling. All changes made directly in your codebase or reviewed via PR.