Junior Python ML Developer

Remote

Ukraine

We are seeking a Junior innovative Prompt Engineer and RAG Specialist to join our AI team. In this role, you will design and implement state-of-the-art solutions combining Large Language Models (LLMs), Vector Databases, and Retrieval-Augmented Generation (RAG) techniques. You will be at the forefront of AI innovation, crafting scalable, intelligent systems that enhance the accuracy, relevance, and utility of AI-generated responses in a variety of applications.

What you'll be working on:

  • Collaborate with team members
  • Integrate Vector Databases with LLMs
  • Design prompts and query strategies
  • Build Retrieval-Augmented Pipelines
  • Write clean, well-documented code following best practices

Experience that will help you to do the job:

  • Proficiency in Python and knowledge of its frameworks like FastAPI/Django
  • Understanding the architecture and functionality of LLMs (e.g., GPT, BERT, or T5)
  • Familiarity with prompt engineering and fine-tuning techniques
  • Hands-on experience with vector search technologies such as Pinecone, Weaviate, FAISS, Milvus, or Vespa
  • Experience designing RAG pipelines
  • Experience with embedding libraries like SentenceTransformers, OpenAI Embeddings, or Cohere Embeddings
  • Basic understanding of Git for code collaboration

Experience that will be a plus:

  • Some exposure to AWS, Azure, or Google Cloud
  • Awareness of deploying models using Flask, FastAPI, or similar frameworks (nice to have)
  • Ability to create data visualizations using tools like Matplotlib or Seaborn
  • Strong communication skills and a willingness to learn from others

We care for our team, therefore we offer:

  • πŸš€ Interesting and challenging projects with modern technology stack
  • βœ… Code reviews and constant feedback on your work
  • πŸ’ͺ Culture encouraging and promoting professional growth and development
  • πŸ’» Modern working environment
  • πŸ’Έ Competitive salary in USD with regular reviews based on your results
  • πŸ’² Salary payment options that are convenient for you considering your local country regulations
  • ⌚ Fully remote work in the team with well-established remote work processes (our team members located in 7+ different countries, and we encourage diversity)
  • 🎀 English speaking clubs
  • πŸ– Paid sick leave and vacation - 15 business days (21 calendar days) of annual vacation
  • πŸ‘ΎΒ Online weekly team activities
  • 🫢 Coverage of monthly psychologist support sessions

As a part of DevelopsToday team you get

Remote-first team

Flexible working hours

English speaking clubs

Mentoring

Challenging projects

Paid sick leave

Coffee talks with team

Frequent feedback

Team activities

How we Hire

Steps of our hiring process (though they can differ depending on role type).

1
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Video-Ask with Test Task

Show us your skills with a short video intro and a test task β€” don't worry, no one's judging your background!

2
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Tech interview with live coding

Time to impress with some live coding β€” don't sweat it, we're not expecting magic, just real skills.

3
πŸ—£οΈπŸ’¬

English and soft skills check

Let's chat! We'll see how well you communicate and play nicely with others.

4
πŸ†πŸ‘¨β€πŸ’»

Final interview with Lead

A casual conversation with the Lead Developer β€” think of it as a "meet the boss" moment.