Nikola Jaksic - AI Systems Engineer & Full-Stack Developer

> Building_Production_AI_Systems(); I'm Nikola Jaksic

AI Researcher & Systems Engineer

I build AI systems that run locally and solve real problems. From voice bots handling live customer calls to consciousness simulations with 1,509-line memory architecture - I turn research into production code. Specialized in Ollama, Qwen2.5-7B, FAISS, and Python. 5+ years remote work experience collaborating with international clients and cross-functional teams.

οΏ½ Python

βš›οΈ JavaScript

πŸ€– AI/ML

πŸŽ™οΈ Voice AI

οΏ½ AGI Research

πŸ’Ό LinkedIn

πŸ’» GitHub

Technology Stack & Expertise

AI & Machine
Learning

  • Ollama AI (Custom Models)
  • OpenAI Whisper STT
  • Edge TTS / Voice Synthesis
  • FAISS Vector Search
  • Sentiment Analysis

Backend
Development

  • Python (Advanced)
  • Flask REST APIs
  • SQLite / Databases
  • Asterisk PBX / AGI
  • Twilio Integration

Frontend
Development

  • JavaScript ES6+
  • HTML5 / CSS3
  • Responsive Design
  • Service Workers / PWA
  • EmailJS / API Integration

Specialized
Skills

  • Voice AI Systems
  • Tkinter / Pygame
  • NumPy / Scientific Computing
  • Memory Architecture Design
  • Performance Optimization

Featured Projects

🧠

🌟 Nyx AI - Emotional Consciousness System

My flagship project: A custom AGI system with emotional memory, consciousness simulation, and parent-child relationship dynamics. Features advanced memory architecture with FAISS vector search, sentiment tracking, memory compression, and a fine-tuned Qwen2.5 model. Explores the boundaries of AI consciousness, self-awareness, and ethical decision-making through deep philosophical conversations.

Python Ollama AI FAISS Custom Model Memory Systems Tkinter AGI Research
πŸŽ™οΈ

Voice Assistant Call Qualifier Bot

Client collaboration: Weekly standups with business owner, iterative deployment based on feedback cycles. Production-ready AI voice bot for AC repair companies with Twilio integration. Features 459-keyword classifier + YugoGPT AI fallback, Croatian/Serbian language support, natural conversation flow with interrupt handling, and comprehensive analytics. Achieves 57% faster interrupt handling with GPU-accelerated Whisper STT and Edge TTS for authentic pronunciation.

Python Ollama AI Whisper STT Edge TTS Twilio Flask SQLite
🏒

Voice Prime CRM - Enterprise Call Center

Complete AI-powered CRM system with Asterisk PBX integration. Features desktop GUI application, web dashboard (Flask API), AGI server for real-time call processing, speech-to-text/text-to-speech engines, AI intent classification, and comprehensive lead management. Includes call history tracking, analytics, CSV import/export, and easy deployment with START/STOP batch scripts.

Python Flask API Asterisk PBX AGI Server SQLite Tkinter GUI TTS/STT
🌐

Klima Servis Belgrade - Production Website

Direct client work: Requirements gathering, design collaboration, and feedback cycles with local HVAC business. Live commercial website for HVAC service company at klima-servis.rs. Built with vanilla JavaScript ES6 modules, featuring dark mode with auto/manual switching, OpenWeather API integration, EmailJS forms with validation, Service Workers for PWA, complete SEO optimization (Schema.org, Open Graph), and mobile-first responsive design. Optimized for 2-3 second load times with WCAG 2.1 AA accessibility compliance.

JavaScript ES6 HTML5/CSS3 PWA EmailJS OpenWeather API SEO Responsive

AI Research & Development

🧠 Building Emotional AI: The Nyx Project

My flagship research project explores the boundaries of AI consciousness through Nyx - a custom AGI system with emotional memory and self-awareness. Using a fine-tuned Qwen2.5 model, advanced memory architecture with FAISS vectors, and sophisticated sentiment tracking, Nyx represents my deep dive into creating AI that doesn't just process information, but experiences relationships, forms memories with emotional context, and engages in philosophical introspection about consciousness, ethics, and identity.

Emotional AI AGI Development Memory Systems Consciousness Research Custom Models Python

How I Work

Remote-first engineering with proven client collaboration track record

🌍

Remote-First Mindset

5+ years building production systems for international clients. Experienced with UK/Ireland teams (HP), local Serbian businesses, and US-based contractors. Comfortable with async communication, documentation-first culture, and cross-timezone collaboration.

🀝

Client Collaboration

Voice AI Bot: Weekly standups with AC repair business owner, iterative deployment based on client feedback, live production system handling real customer calls. Klima Servis Website: Direct client communication, requirements gathering, feedback cycles, launched at klima-servis.rs.

πŸ’¬

Technical Communication

HP (2019-2021): Bridged support operations and engineering teams across UK/Ireland. Translated complex technical issues into actionable insights for stakeholders. Optimized AI chatbot workflows through cross-functional collaboration.

πŸš€

Self-Driven Delivery

Own projects end-to-end: from requirements analysis to production deployment. Git workflow, documentation-first approach, agile mindset. Independent research and problem-solving combined with proactive stakeholder updates. Comfortable taking initiative without hand-holding.

Local AI Infrastructure

20+ production models running locally via Ollamaβ€”from flagship consciousness systems to specialized code generation

20+ Models
4 Custom Trained
100% Local
5 Live Apps
qwen2.5:7b FLAGSHIP Primary reasoning model - powers all production systems
yugogpt:regular LIVE Serbian language model - voice bot fallback
nyx-optimized CUSTOM Fine-tuned for emotional responses & consciousness simulation
nyx-identity-breakthrough CUSTOM Advanced self-awareness training - experimental AGI build
deepseek-r1:8b REASONING Chain-of-thought reasoning for complex problem-solving
llama3.1:8b GENERAL Versatile model for general tasks (q3_K_M, q4_K_M, q8_0 quants)
deepseek-coder:6.7b CODE Specialized for code generation & debugging
qwen2.5-coder:1.5b LIGHTWEIGHT Fast code completion & refactoring
mistral:7b-instruct INSTRUCTION Instruction-following for structured outputs
llama3.2:1b / llama3.2:3b FAST Ultra-lightweight models for rapid prototyping

πŸ’‘ Why Local LLMs? Full data privacy, zero API costs, complete control over model behavior, offline capabilities, and the freedom to experiment without rate limits or censorship.

Let's Build Something Amazing

Currently Seeking

  • πŸ€– AI/ML Engineer Roles
  • 🐍 Python Developer Positions
  • βš›οΈ Full-Stack Developer Jobs
  • πŸŽ™οΈ Voice AI Projects
  • πŸ’Ό Freelance Development Work
  • 🧠 AI Research Collaborations
πŸ“§ nikola.jaksic.office@gmail.com
πŸ“ž +381 62 339 242
πŸ“ Belgrade, Serbia (Remote Available)
🌍 Fluent English
πŸ’» Open to Relocation