You will get a smart mobile app with Flutter
Top Rated
Project details
♛ Upwork Top Rated Developer with 10+ years of experience
♛ 10+ Enterprise web applications deployed on cloud services
♛ 100% Client Satisfaction & consistent best quality delivery
♛ Self-motivated, detailed-oriented, punctual, and fast learner
♛ Strong troubleshooting / debugging skills
♛ I will help you to turning your idea/concept into reality
My expertise includes :
✔ Asp.NET, C#, Core 6.0
✔ REST API, Web Service, XML, JSON development,
✔ OpenAI ChatGPT
✔ Desktop App (Both Windows and MacOS)
✔ MSSQL programming (stored proc, func, trigger, job, view, index etc ),
✔ Postgresql , Mysql
✔ Cloud services like Google Cloud Platform (sheets api, gmail api, OAuth, Places api etc), Firebase, AWS
✔ SQL query optimization,
✔ PHP,
✔ Push Notification
✔ javascript, jquery, ajax, bootstrap
✔ Familiar with Asana, Git, Jira, Trello, Slack
✔ Web scraping and data mining
✔ FFMPEG automatic screen video record and video converting
✔ automated systems
I'm full time freelancer and could work up to 40+ hours per week.
♛ 10+ Enterprise web applications deployed on cloud services
♛ 100% Client Satisfaction & consistent best quality delivery
♛ Self-motivated, detailed-oriented, punctual, and fast learner
♛ Strong troubleshooting / debugging skills
♛ I will help you to turning your idea/concept into reality
My expertise includes :
✔ Asp.NET, C#, Core 6.0
✔ REST API, Web Service, XML, JSON development,
✔ OpenAI ChatGPT
✔ Desktop App (Both Windows and MacOS)
✔ MSSQL programming (stored proc, func, trigger, job, view, index etc ),
✔ Postgresql , Mysql
✔ Cloud services like Google Cloud Platform (sheets api, gmail api, OAuth, Places api etc), Firebase, AWS
✔ SQL query optimization,
✔ PHP,
✔ Push Notification
✔ javascript, jquery, ajax, bootstrap
✔ Familiar with Asana, Git, Jira, Trello, Slack
✔ Web scraping and data mining
✔ FFMPEG automatic screen video record and video converting
✔ automated systems
I'm full time freelancer and could work up to 40+ hours per week.
What's included
| Service Tiers |
Starter
$150
|
Standard
$199
|
Advanced
$1,000
|
|---|---|---|---|
| Delivery Time | 2 days | 3 days | 9 days |
Number of Revisions | 1 | 3 | 7 |
Number of Pages | 1 | 3 | 10 |
Design Customization | - | ||
Content Upload | - | - | |
Responsive Design | - | ||
Source Code | - | - |
Optional add-ons
You can add these on the next page.
Design Customization
(+ 10 Days)
+$500
Content Upload
(+ 10 Days)
+$500
Source Code
(+ 3 Days)
+$1,500
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About GOKHAN
AI Engineer | RAG, LoRA, AI Agents, n8n Automation | NestJS & .NET
100%
Job Success
Istanbul, Turkey - 5:57 am local time
Most AI projects stall at the same point: the prompt looks great in a test, then breaks against real data, real users, and real infrastructure. I work on the other side of that line — retrieval that stays grounded, agents that fail predictably, and integrations that hold up under load.
What I build:
RAG and internal knowledge assistants (pgvector, embeddings, self-hosted or API models)
AI agents and workflow automation (n8n, webhooks, CRM and third-party integrations)
Voice AI agents (VAPI, Retell) with telephony, SMS, and CRM integration
Custom GPT / OpenAI assistant workflows and chatbot logic
Multi-tenant SaaS backends that host AI features (NestJS/TypeScript, .NET Core, PostgreSQL)
Prompt architecture, evaluation, and cleanup for systems already in production
Self-hosted LLM deployments where data can't leave the client's infrastructure
Because I come from a backend engineering background, I don't hand over a prompt and stop there. I handle the data layer, the API design, the deployment, and the documentation — so what you get is a working tool your team can maintain, not a proof of concept.
On Upwork I've earned $40K+ across 1,000+ hours and hold Top Rated Plus status, with a 100% focus on delivery and clear communication. I'm also the founder of Peakersoft, where we build sector-specific SaaS products — so I understand projects from the product side, not just the code.
If your project needs more implementation bandwidth than a single freelancer, I can coordinate additional development support through Peakersoft.
If you're looking for someone who can scope the AI workflow, build the system, and keep it grounded in something usable, let's talk.
Steps for completing your project
After purchasing the project, send requirements so GOKHAN can start the project.
Delivery time starts when GOKHAN receives requirements from you.
GOKHAN works on your project following the steps below.
Revisions may occur after the delivery date.
Requirement gathering
The client needs to share the designs and the requirements. Then I will provide him with the estimated time and cost for it. After client approval, we will kick-start the project.