About Aleksa
I build high-performance web applications and AI-powered tools that help businesses grow.
- Award-quality websites with stunning animations (GSAP, Three.js, WebGL)
- Full-stack applications from concept to deployment (React, Next.js, Node.js, Python)
- AI/ML integration — from LLM-powered features to custom image/video generation pipelines
- Custom CMS systems tailored to your exact workflow
- 5 years of hands-on development experience across 20+ projects
- Rare combination of creative design sense and deep technical expertise
- I handle everything end-to-end: frontend, backend, infrastructure, and AI
- Strong communicator who delivers pixel-perfect results on time
Ich entwickle performante Webanwendungen und KI-gestützte Tools, die Unternehmen voranbringen.
- Websites auf Awwwards-Niveau mit beeindruckenden Animationen (GSAP, Three.js, WebGL)
- Full-Stack-Anwendungen von der Konzeption bis zum Deployment (React, Next.js, Node.js, Python)
- KI/ML-Integration — von LLM-Features bis zu eigenen Bild-/Videogenerierungs-Pipelines
- Maßgeschneiderte CMS-Systeme für Ihren Workflow
- 5 Jahre praktische Entwicklungserfahrung in über 20 Projekten
- Seltene Kombination aus kreativem Designgespür und tiefem technischem Know-how
- Alles aus einer Hand: Frontend, Backend, Infrastruktur und KI
- Starke Kommunikation und pixelgenaue Ergebnisse, pünktlich geliefert
German
Native or bilingual
English
Fluent
Serbian
Native or bilingual
Experience
- Freelance / Personal ProjectsAI/ML Engineer & DeveloperTECHJune 2023 - Today (3 years and 1 month)Arnsberg, GermanyDevelopment of AI-powered tools and integration of machine learning models into production applications for image generation,video generation, and intelligent automation.
- Built a custom Rust application for AI image and video generation using multiple model APIs (Flux, Qwen, LTX2, WAN, SeedReam, NanoBanana)
- Set up and optimized local open-source AI model deployments using ComfyUI, Stable Diffusion, and Hugging Face models
- Integrated LLM APIs (OpenAI, Anthropic) into web applications for intelligent features
- Fine-tuned models using LoRA adapters for specialized client tasks
- Designed and built complete AI pipelines from model selection through deployment and optimization
- Freelance / Various ClientsMobile Developer & Mobile-First Web DesignerDIGITAL AND ITSeptember 2022 - Today (3 years and 10 months)Arnsberg, GermanyMobile application development and mobile-first responsive web design, ensuring seamless user experiences across all screensizes and devices.
- Developed cross-platform mobile applications using modern frameworks and Rust-based tooling
- Designed and implemented mobile-first, fully responsive web experiences with breakpoints optimized for 6+ device categories
- Built touch-optimized interfaces with smooth animations and native-like performance
- Ensured accessibility and usability standards across iOS and Android devices
- Applied progressive enhancement strategies to deliver fast-loading experiences on mobile networks
- Freelance / Various ClientsIT Consultant & System AdministratorDIGITAL AND ITSeptember 2022 - Today (3 years and 10 months)Arnsberg, GermanyEnd-to-end IT infrastructure solutions for small businesses, including physical network setup, server administration, andongoing technical support.
- Designed and installed physical LAN network infrastructure for business offices
- Configured and maintained Linux servers for reliable day-to-day operations
- Provided ongoing system administration, monitoring, and troubleshooting
- Advised small business clients on IT strategy, hardware selection, and security best practices
- Ensured minimal downtime through proactive maintenance and rapid issue resolution
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