Development & IT Consultation with Karun K.
Development & IT Consultation with Karun K.
From 2015 onwards, I am full-time in Software Development.
My major expertise is in iOS mobile application development. I have developed several apps from requirement gathering, wireframing, design, development & deployment to respective stores. I possess good ratings from my previous works & clients and have been maintaining them.
Other than iOS, I also know NodeJS(have built APIs), Python(basic), PHP, HTML/CSS, JavaScript, domain & sever registration, Google Play & App Store Developer account setup.
Get personalized advice on:
Mobile App Development
mobile app development consultation
ios development
ios
mobile app
it consultation
You’re covered with payment protection so you can cancel and get a full refund up to 24 hours before your consultation.
About Karun
10 Years Senior iOS & Flutter Developer | AI & LLM Training Specialist
100%
Job Success
Ludhiana, India - 7:33 am local time
🏆 35+ Projects Delivered | $10k+ Earned | 450+ Hours Worked
🏆 Proven Expertise in Mobile Development & AI/LLM Training
I am a results-driven Mobile App Developer (iOS & Flutter) and AI/LLM Training Specialist with over a decade of experience delivering technology solutions for startups, enterprises, and global clients. My expertise spans end-to-end iOS development, cross-platform Flutter solutions, and AI-powered integrations, as well as large language model (LLM) training and reinforcement learning from human feedback (RLHF) for conversational AI systems.
With a background that combines technical depth, product ownership (CSPO certified), and business alignment, I ensure that every solution I deliver is robust, scalable, and tailored to achieve client goals.
Mobile App Development (iOS & Flutter)
I design and develop high-quality, scalable, and user-centric mobile applications for iOS and cross-platform needs.
Core Expertise:
- iOS (Swift, Objective-C, SwiftUI): UIKit, CoreData, AVFoundation, MapKit, Push Notifications, In-App Purchases, App Store deployment
- Flutter (Dart): Cross-platform apps for iOS & Android, optimized for speed and cost efficiency
- AI-Powered Apps: CoreML, Firebase ML, OpenAI/ChatGPT APIs, voice-to-text, recommendation engines, chatbots
- Integrations: Payment gateways (Stripe, Braintree), REST/GraphQL APIs, Social logins (Google, Facebook, Twitter)
- Tools & Processes: Git workflows, CI/CD (Bamboo, App Center), Agile Scrum, Jira, Bitbucket, Confluence
- Architecture: MVC, MVVM, clean scalable codebases
Whether you need a new app built from scratch, feature enhancements, or AI-enabled functionality, I provide solutions that meet business objectives while maintaining technical excellence.
AI & LLM Training Services
In addition to mobile development, I contribute to advancing AI and intelligent automation through LLM training and data annotation.
Core Expertise:
- LLM Training & Fine-Tuning: Preparing conversational AI models for improved accuracy and contextual understanding
- Reinforcement Learning with Human Feedback (RLHF): Guiding AI systems toward human-aligned responses
- Data Annotation & Curation: Building structured datasets for natural language processing and machine learning
- Conversational AI Development: Enhancing chatbots, virtual assistants, and AI-driven customer support systems
I help organizations strengthen their AI capabilities by ensuring that models are well-trained, human-aligned, and ready for real-world deployment.
Why Clients Hire Me
✔️ Proven Track Record: Top Rated with repeat clients on Upwork
✔️ Dual Expertise: Strong foundation in Mobile Apps & AI/LLMs, enabling cross-disciplinary solutions
✔️ Corporate Mindset: Skilled in Agile and CSPO-certified, ensuring business alignment and structured delivery
✔️ Transparent Collaboration: Formal communication, milestone clarity, and a focus on long-term partnerships
If you are seeking a reliable partner for:
- Mobile App Development (iOS & Flutter), or
- AI/LLM Training & Conversational AI
Click “Invite” or “Contact”, and let’s discuss how I can contribute to your success.
What to expect
Schedule the consultation
Choose from the freelancer’s available days and times.
Get advice for your custom needs
Share details about your project and what you want to talk about. The freelancer will review and reach out if they have questions.
Join the Zoom meeting
1-on-1 meeting with the freelancer to discuss your needs and project.
Approve the work
The freelancer will finish up the documents you asked for and send them to you for approval:
Before the consultation
Here’s what Karun will need to know before you meet
- Tell me about yourself and what you want to talk about
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This project doesn't have any reviews.
AM
Adel M.
Nov 8, 2024
Bug (Swift)
Karun is a strong-hearted developer, one who listens deeply and understands the needs of the work. With clear words and steady hands, he saw the problem clearly and brought it to a perfect fix without delay. I trust his skills, and you would be wise to do the same. Thanks to him!
AA
Ari A.
Mar 8, 2023
Swift iOS Developer
great work!
BB
Brandon B.
Nov 3, 2022
iOS Developer needed to edit app
Great job modifying my application. Thanks!
RN
Rosemary N.
Apr 9, 2022
Koko Kawaii Girls - UI
JF
Jack F.
Aug 27, 2021
Check Compliance and Submit App to Apple and Google App Stores
Fast, reliable, great freelancer. Thank you!