AI Prompt Engineer

Join us as an AI Prompt Engineer and become a driving force in scaling Zeely’s LLM initiatives and generative capabilities. We are looking for a specialist who will build a systematic approach to prompt creation and become a key player in the development of our AI platform. You will be responsible for creating scalable templates that work across hundreds of different products, as well as testing new generative models, identifying their use cases, and integrating them into Zeely’s pipelines.

Zeely AI is a platform that uses artificial intelligence to generate viral UGC videos and ad banners, as well as launch effective ad campaigns on Facebook and Instagram, helping small businesses become visible and scale.

We already have 150,000+ users in the US and are consistently growing more than 4x year-over-year. Today, Zeely is ranked among the Top-5 products in its category on the US market, and our team has grown to over 90 specialists.

Your key responsibilities:

• Develop and optimize complex generative content pipelines for images, video, audio, and text.

• Configure generative model parameters to maximize quality and efficiency.

• Optimize and improve the efficiency of existing workflows and processes.

• Build advanced pipelines in ComfyUI, including custom nodes.

• Quickly identify and effectively resolve issues in content generation processes.

• Expand the capabilities of generative systems.

• Work closely with Product teams to integrate new features.

• Research and test new models, staying up-to-date with market developments and emerging solutions, including: Flux, Nana Banana, OpenAI, Kling AI, Hailuo MiniMax, Veo 3, Runway, Pika Labs

What we’re looking for:

• 2+ years of experience in Prompt Engineering.

• Hands-on experience with generative models, including text-to-text, text-to-image, text-to-audio, video-to-video, and others.

• Deep understanding of the AI model landscape and emerging trends.

• Experience training Low-Rank Adaptation (LoRA) models.

• Practical experience building and configuring agents based on LLMs and other generative models.

• Experience integrating and optimizing open-source solutions.

• In-depth expertise in ComfyUI, including developing custom nodes.

• Strong adaptability and willingness to quickly learn and apply new technologies.

• Excellent communication skills and the ability to collaborate effectively across research, engineering, and product teams.

Nice to have:

• Experience with an intuitive “vibe coding” approach to content generation.

Why it’s exciting to work with us:

• Work with cutting-edge technologies and contribute to building AI-powered tools

• Join a strong A-level team that motivates you to grow and achieve more

• Remote-first approach: work from anywhere, with the option to visit our offices in Warsaw and Kyiv

• Paid day offs and sick leaves — we care about your work-life balance

• Regular performance reviews to ensure your growth is transparent and rewarded

• Financial support — consultations for private entrepreneurs from our dedicated finance team

Recruitment process: Interview with recruiter > Test assignment > Final interview > Reference check > Job offer.

Send us your CV — we’d love to get to know you better!