EXPLORE

Full Stack Development JavaScript Node.js Python Web Development
Profile cover photo
User Avatar

Ivan K.

@ivank69

monthly-level-four.svg
5.0
2

2.1

2.1

100%

Full Stack Dev | BlockChain Ethical Hacker

$30 USD / Hour

Flag of

Ukraine (3:53 PM)

Joined on May 6, 2025

$30 USD / Hour

✩░▒▓▆▅▃▂▁💬 “𝑫𝒐 𝒘𝒉𝒂𝒕 𝒚𝒐𝒖 𝒍𝒐𝒗𝒆, 𝒏𝒐𝒕 𝒘𝒉𝒂𝒕 𝒚𝒐𝒖 𝒕𝒉𝒊𝒏𝒌 𝒚𝒐𝒖'𝒓𝒆 𝒔𝒖𝒑𝒑𝒐𝒔𝒆𝒅 𝒕𝒐 𝒅𝒐.”▁▂▃▅▆▓▒░✩ I’m a Senior Software Engineer with 11+ years of experience specializing in BlockChain, Cloud Engineering, and DevOps Automation. Especially, I have been working on Immunefi as Bug Bounty Hunter (Senior White Hacker). I build reliable, scalable, and high-performance systems — from real-time media streaming to cloud-native applications — for both startups and enterprises. 🎯 Core Expertise 🔸 Video Processing & Streaming 🔸 FFmpeg, GStreamer 🔸 WebRTC, SRS (Simple Realtime Server), WHIP/WHEP 🔸 Adaptive bitrate transcoding (ABR), live & VOD streaming 🔸 HLS (M3U8), MPEG-DASH (MPD), RTMP conversions 🔸 Overlays, transitions, watermarks, and video effects 🔸 AES Encryption, DRM integration 🔸 Computer Vision, Object Detection, Face Recognition 💻 Software Development 🔹 C/C++ (STL, Boost, Qt, COM, DirectShow, WinAPI) 🔹 C# .NET Framework 🔹 Go/Golang 🔹 Python (Flask, Django, FastAPI) 🔹 Node.js / TypeScript 🔹 Cross-Platform Apps: React Native, Flutter 🔹 Java/Kotlin (Android), Swift/SwiftUI (iOS) ☁️ Cloud & DevOps ✔️ AWS (EC2, S3, Lambda, Beanstalk, Media Services, SageMaker, DynamoDB) ✔️ CI/CD pipelines, Docker, Terraform, Ansible, Kubernetes ✔️ Cloud automation, scaling, infrastructure as code ✔️ Linux, Windows, macOS, Android, iOS environments 🔧 Embedded & Systems ✅ Assembler (x86/amd64/ARM) ✅ STM32F1x, ESP32, ATMEL, OrangePi, Raspberry Pi 🚀 Professional Strengths 💠 Technical leadership & team management 💠 Product lifecycle ownership — from design to deployment 💠 System and business analysis 💠 Documentation & testing strategy 💠 Proactive problem-solving and transparent communication I’m not an agency, but a dedicated independent developer focused on quality, reliability, and long-term collaboration. 🕒 Available 40+ hours/week, aligned with your business timezone. Let’s create something exceptional together! 💪 — Ivan 🔖 Keywords #cloudengineering #devops #aws #azure #docker #kubernetes #terraform #ansible #serverless #microservices #ffmpeg #gstreamer #webrtc #rtsp #rtmp #hls #mpegdash #h264 #h265 #av1 #cuda #nvidia #mediaconvert #nginx #encoding #transcoding #python #nodejs #react #golang #java #kotlin #swift #qt #yolo

Verifications

On time

100%

On budget

100%

Accept rate

100%

Repeat hire rate

100%

Portfolio

Portfolio

13672431
13672426
13672422
13672417
13635558
13635549
13672431
13672426
13672422
13672417
13635558
13635549
5.0 · 2 Reviews
Reviews
C

Upgrade AI-Driven Stock & Sports Trading Platform $30 USD

Ivan delivered excellent work again. He understood the technical requirements quickly and upgraded the platform with clean, scalable code. The real-time data, trading flow, and sports module all worked smoothly with no lag. Communication was fast, and he provided clear documentation and a helpful walkthrough. A reliable full-stack partner I will gladly hire again.

Chanthai S.

@chanthais6

Flag of

Vientiane, Lao People's Democratic Republic

3 days ago

Share

C

AI Stock & Sports Trading Platform MVP $83 USD

Ivan did an excellent job on my AI Stock & Sports Trading Platform MVP. He quickly understood the idea and delivered a fast, stable end-to-end product with live market and sports data, test trading and AI game predictions in one clean dashboard. Communication was clear, he was proactive and reliable. I’m already planning further updates with him because I trust his skills and ownership of the project. Highly recommended and would happily hire Ivan again.

Chanthai S.

@chanthais6

Flag of

Vientiane, Lao People's Democratic Republic

6 days ago

Share

Education

Ternopil State 'Ivan Pul'uj' Technical University

2013 - 2017

4 years

Bachelor’s Degree in Computer Science

Flag of

Ukraine

2013 - 2017

4 years

Registered Users

Total Jobs Posted

Freelancer ® is a registered Trademark of Freelancer Technology Pty Limited (ACN 142 189 759)

Copyright © 2025 Freelancer Technology Pty Limited (ACN 142 189 759)