AI/ML Backend Engineer

About Bitmedia Labs
Bitmedia Labs - an international product IT company, has been in the industry since 2014, effectively functioning on a worldwide scale with a crew of 130+ ambitious and highly skilled professionals, creating successful projects in domains such as online advertising systems for the crypto space, blockchain games, and NFT products.

Responsibilities:

• Conduct R&D in the field of artificial intelligence and machine learning;


• Design and implement RESTful APIs endpoints for AI-powered applications using FastAPI/Flask;


• Develop background workers and task queues for asynchronous AI processing and model inference;


• 
  
  Engineer effective prompts for large language models and fine-tune models for specific business use cases;
  
  
  
  
  
  


• Prepare and develop AI concepts and prototypes to solve business challenges;


• Design and engineer effective prompts for large language models;


• Train, fine-tune, and optimize machine learning models for specific use cases;


• Develop and implement RAG (Retrieval-Augmented Generation) solutions;


• Create and integrate AI-powered bots, virtual assistants, and chatbots;


• Work with various LLM APIs (OpenAI, Anthropic Claude, Google Gemini, LLaMA, etc.);


• Implement ML models for data analysis, NLP tasks, and content generation;


• Build data processing pipelines and workflows;


• Form and test hypotheses to improve product metrics and user engagement;


• Collaborate with product teams to implement AI features that solve real user problems.

Required Qualifications:
 

• Solid experience with Python programming and software development;


• Hands-on experience working with LLM models and APIs (OpenAI, Claude, Gemini, LLaMA, etc.);
  


• Practical knowledge of AI/ML libraries and frameworks (LangChain, Hugging Face, PyTorch, TensorFlow);
  


• Experience with vector databases (Pinecone, Weaviate, Qdrant, etc.) and embeddings;


• Demonstrated expertise in prompt engineering techniques and best practices;


• Basic experience with model fine-tuning and training pipelines;


• Strong SQL skills and experience with relational/NoSQL databases;


• Proven experience building APIs and backend services (RESTful APIs, background workers, task queues, data processing services) and understanding of application architecture and system design principles;


• Strong problem-solving skills, ability to work independently with minimal supervision, and capacity to research and learn new technologies autonomously;


• Experience with debugging, troubleshooting, and optimizing AI/ML solutions.
   

Preferred Qualifications:
 

• Experience with cloud platforms (AWS, GCP, Azure) for AI/ML deployment and production implementation of AI solutions;


• Knowledge of Docker containerization, DevOps practices, MLOps, model monitoring, and CI/CD pipelines;


• Understanding of semantic search techniques, advanced embedding strategies, and experience processing unstructured data (text, images, audio) at scale;


• Proficiency with data visualization tools and techniques (Plotly, D3.js, Tableau);
  


• Working knowledge of web technologies fundamentals (HTML5, CSS3, JavaScript);
  


• Knowledge of authentication, authorization, and security best practices for AI applications.

Hiring process: 

• Intro call with a Recruiter - Technical Interview with the Hiring team - Offer.
   

We offer:

• Flexible work environment - you can work remotely anywhere or at our comfortable Hub in Kyiv;


• The 8-hour working day with a flexible schedule;


• Competitive salary based on your experience;


• Regular performance review and annual salary review;


• Paid sick leaves, vacation, and holidays;


• Professional development tools (reimbursement of educational courses or workshops, conferences around the world);


• Ambitious team with transparent communication and a friendly atmosphere, no micromanagement;


• Apple equipment;


• Memorable gifts for holidays.