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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.…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.

Leslie Perjes

Back-End Developer, Full Stack Developer, Web Developer, +5

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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.…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.

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 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.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Language

Hungarian

Fluent

English

Advanced

Work Experience

Python GenAI Backend Developer at Multiple Clients (Remote Contractor)

January 1, 2022 - Present

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 at Multiple Clients (Remote Contractor)

January 1, 2010 - Present

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.