Senior Data Scientist

Senior Data Scientist
 
 up to 4800 usd
 English: B2+
 Years: 5 + commercial experience
 
 In this role, you will focus on extracting meaningful insights from large-scale datasets, developing advanced machine learning models, and building vector knowledge bases to enhance our business processes and products. You’ll collaborate closely with cross-functional teams to design intelligent solutions that drive efficiency, improve decision-making, and unlock new business opportunities.
 
 Key Responsibilities:
 
 Collect, process, and analyze large datasets from diverse sources.
 Develop and deploy machine learning models to address complex business challenges.
 Design, implement, and optimize vector knowledge bases to power recommendation systems and improve data analysis efficiency.
 Define business entity metrics and perform entity vectorization for integration into vector knowledge bases.
 Visualize data and create dashboards to present analytical results to leadership and stakeholders.
 Collaborate with cross-functional teams to translate business objectives into data-driven solutions.
 Research and apply the latest methods and technologies in data analysis, machine learning, and knowledge representation.
 

Requirements:
 
 Bachelor’s degree (or higher) in Computer Science, Mathematics, Statistics, or a related field.
 Strong programming skills in Python or R.
 Hands-on experience with ML frameworks such as TensorFlow, PyTorch, and Scikit-learn.
 Proven expertise in working with big data technologies (e.g., Hadoop, Spark).
 Experience building and optimizing vector knowledge bases.
 Proficiency with relational and non-relational databases (SQL, NoSQL).
 Practical experience with graph databases (Neo4J) and vector databases.
 Familiarity with NLP methods (a plus).
 Knowledge of MLOps practices with AWS (SageMaker, Bedrock) and Google Cloud.
 Background in Computer Vision, speech recognition, transcription, and LLM-based chatbots (RAG, prompt engineering).
 Experience working with Eliza OS (a strong advantage).
 Excellent analytical skills, attention to detail, and problem-solving mindset.
 Strong communication skills with the ability to explain complex concepts clearly.
 Tech Stack Highlights:
 
 Python + ML (core)
 LLMs, Chatbots, Prompts, RAG + Vector DBs
 Computer Vision & Speech/Transcription
 MLOps: AWS SageMaker, Bedrock, Google Cloud
 PostgreSQL, Vector DBs, Graph DBs (Neo4J)
 Joining Valletta Software Development means:
 
 🌍 A Global, Thriving Team
 Join 100+ specialists from 20+ countries, united by a passion for outstanding 
 IT solutions.
 🚀Diverse projects: Fintech, MedTech, AI/ML, e-commerce, and more. Switch 
 teams or industries to broaden your skills.
 💡 Support at Every Step Client interview prep: We train you to succeed + give actionable feedback. 
 ✔️ Strategic stability: Well-structured processes, strong management, and long- term vision.
 ✔️ Core values: Honesty, flexibility, innovation, and a people-first approach.
 💸 Regular salary review based on your personal results
 ✨ Paid rest days and sick leaves;
 
 tg: t.me/Viktoria_Stihina
 
 Linkedin https://www.linkedin.com/in/stihinaviktoria/