Harmix

Hello!

We are Harmix (www.harmix.ai), a Ukrainian startup creating innovative products for the music industry. Our mission is to transform the approach to music search and analysis using advanced AI technologies.

We seek a Middle ML Engineer specializing in Generative AI to join our innovative team. You'll be at the forefront of developing multimodal AI, Large Language Models (LLMs), and AI Agents.

Key Responsibilities:

• Develop and optimize generative models using Python and PyTorch.
• Implement and refine multimodal AI solutions integrating audio, text, and visual data.
• Design and enhance Large Language Models (LLMs) and AI agents for complex tasks.
• Build robust ML pipelines for training, evaluation, and deployment.
• Collaborate closely with backend, frontend, and DevOps teams to ensure seamless integration of AI models.
• Conduct experiments, analyze results, and continually improve model performance.

• Document research findings, codebases, and model architectures clearly and effectively.

   

What We Expect from the Candidate:

• Solid understanding of Machine Learning fundamentals, including deep learning, NLP, and generative models.
• 3+ years of experience working with Python and PyTorch.
• Practical experience with LLMs (e.g., GPT models, LLaMA), transformer architectures, and AI agents.
• Experience developing and deploying multimodal AI systems.

• Strong analytical and problem-solving skills.

   

What Is a Plus:

• Experience with vector databases and retrieval systems.
• Knowledge of cloud services (AWS, GCP, Azure) and containerization (Docker).
• Understanding of Databricks, CI/CD processes and deployment best practices.

• Contributions to open-source ML/AI projects.

   

What We Offer:

• Remote Contract: 20-40 hours per week.
• Flexible work schedule.
• Collaborative environment with opportunities for professional growth.
• Chance to contribute directly to innovative products shaping the future of the industry.

Hello!

My name is Oleksandr, and I am the co-founder of Harmix AI. We are a Ukrainian B2B product company building innovative AI products.

After creating an AI-powered search platform for media businesses, we are now developing our next product – Proactive AI Manager – an agentic productivity tool that evolves from our search technology into a system of intelligent AI agents. Backed by investment from a Canadian fund in 2023, we are already working with clients worldwide.

We are expanding our team and looking for a Middle Software Engineer to help build the scalable systems and infrastructure behind this new product. If you are passionate about Python, cloud technologies, and working on cutting-edge AI tools, we’d love to hear from you.

Key Responsibilities:

• Develop and maintain backend services and RESTful APIs using Python (FastAPI or similar).
• Design and optimize relational and NoSQL database schemas.
• Implement reliable data storage, messaging, and orchestration for agents.
• Ensure code quality through reviews, testing, and best practices.
• Deploy and operate applications in Google Cloud Platform (GCP) using Docker and related services.
• Monitor, troubleshoot, and improve performance, scalability, and reliability.

What We Expect from the Candidate:

• Strong knowledge of Python and backend development principles.
• 3+ years of experience in backend engineering.
• Proficiency with databases (SQL and NoSQL).
• Hands-on experience with cloud platforms (GCP preferred), Docker, and deployment.
• Experience with Git and collaborative workflows.
• Solid understanding of system design and architecture.

What We Offer:

• Full-time remote contract (40 hours/week).
• Flexible work schedule.
• A fast-paced, collaborative startup environment with room for professional growth.
• Direct impact on the development of innovative AI products shaping the future of the industry.

Hello!

My name is Mykola, and I am the co-founder of Harmix AI. We are a Ukrainian B2B product company building innovative AI products.

After creating an AI-powered search platform for media businesses, we are now developing our next product – Proactive AI Manager – an agentic productivity tool that evolves from our search technology into a system of intelligent AI agents. Backed by investment from a Canadian fund in 2023, we are already working with clients worldwide.

We are expanding our team and seeking an Agent Developer to help us rapidly build solutions for real-world business cases.

What You’ll Do

• Design, prototype, and ship AI agent solutions for real business and personal productivity use cases.
• Develop, integrate, and optimize AI agents using LLMs and supporting infrastructure.
• Write scripts and prompts that ensure reliable, high-quality outputs.
• Build and maintain integrations with APIs, infrastructure components, and MCP servers.
• Operate in a fast-paced startup environment where delivering value quickly is key.

Skills & Experience We’re Looking For

1. Prompting — advanced ability to design, structure, and optimize prompts for LLMs.

2. AI Agents & LLMs — familiarity with popular frameworks and tools

3. Python & Scripting — coding background to automate tasks quickly and efficiently.
4. MCP servers — familiarity with Model Context Protocol
5. Infrastructure — understanding of deployment, scaling, and monitoring AI systems.

Who You Are

• Excited to work directly with business use cases to solve practical problems.
• Comfortable with ambiguity and rapid iteration in an early-stage environment.
• Independent, but also collaborative, with a strong sense of ownership.

What We Offer:

• Full-time remote contract (40 hours/week).
• Flexible work schedule.
• A fast-paced, collaborative startup environment with room for professional growth.
• Direct impact on the development of innovative AI products shaping the future of the industry.