Leslie Perjes

Available to hire

I'm Leslie Perjes, a Python GenAI Backend Developer and ComfyUI workflow specialist with a track record of delivering production-grade generative AI systems and scalable backend pipelines for marketing and enterprise…

About

I’m Leslie Perjes, a Python GenAI Backend Developer and ComfyUI workflow specialist with a track record of delivering production-grade generative AI systems and scalable backend pipelines for marketing and enterprise applications.

I specialize in multi-model orchestration, natural language interfaces to databases, prompt engineering, and GPU-powered deployment across cloud and on-premises infrastructure. I work well with distributed teams and am open to permanent or contract remote roles in the EU or US, with willingness to relocate for the right opportunity.

  • 16 years' experience
  • Joined April 2026

Languages

  • HungarianFluent
  • EnglishAdvanced

Industry experience

  • Software & Internet
  • Media & Entertainment
  • Professional Services

More experts in Jászapáti, Hungary

Work experience

Python GenAI Backend Developer · Multiple Clients (Remote Contractor)Jan 2022 – Present · 4 yrs 11 mos

Built end-to-end automated advertisement system: product data → AI content generation → image generation → video shots creation → final deliverable; developed production pipeline with intelligent model routing (Anthropic Claude → appropriate generation models) and no-code Prototyping in ComfyUI; implemented natural language database interface; contributed to open-source ComfyUI node package for 20+ architectures; deployed AI systems on distributed GPU infrastructure with FastAPI endpoints, async processing, queue management, and cross-provider failover; integrated video generation services (HeyGen, SeeDance, FAL, VEO, Kling) and ElevenLabs TTS; trained LoRA adapters and later migrated to editing models (Nanobanana, Qwen-Edit).

PHP Backend Developer · Multiple Clients (Remote Contractor)Jan 2010 – Present · 16 yrs 11 mos

Designed enterprise database architectures with optimized indexing and partitioning; built RESTful APIs with OAuth2, rate limiting, and OpenAPI documentation; developed geospatial platform with PostGIS integration and Leaflet-based visualization; integrated payment systems (Stripe, Barion, OTP) with PCI-compliant data handling; connected ERP systems via SOAP webservices for automated order processing and inventory sync; created e-commerce backends with multi-currency support and automated pricing; implemented ETL pipelines and real-time vehicle tracking with WebSocket and map visualization; collaborated across distributed teams using Agile methodologies.

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