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Posted Apr 8, 2026

Junior Data Scientist

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Johnson Controls is a global leader in smart, healthy and sustainable buildings. They are seeking a curious and driven Junior Data Scientist to join their Lean Initiative team, where the candidate will develop models, support analytics, and help bring AI-powered features to life. Responsibilities - Build, train, and evaluate machine learning models that support business decisions and product features - Develop and maintain analytics reports and dashboards that surface actionable insights for stakeholders - Collaborate on AI product and feature work — from prototyping to production support - Write clean, well-documented Python for data processing, modeling, and analysis - Work with SQL to query, transform, and validate data across multiple sources Support model monitoring, performance tracking, and iterative improvement - Explore and experiment with LLMs and GenAI frameworks to identify opportunities for intelligent automation and AI-assisted workflows - Work across cloud platforms (Azure or Palantir) to access data, run workloads, and deploy models Skills - Bachelor's degree in Data Science, Computer Science, Statistics, Mathematics, or a related field - Hands-on experience with Python and/or R — coursework, projects, internships, or personal work all count - Comfort writing SQL queries and working with structured and semi-structured data - Familiarity with core ML concepts — supervised/unsupervised learning, model evaluation, feature engineering - Exposure to at least one cloud platform (AWS, Azure, or GCP) - Curiosity about LLMs and GenAI — you don't need to be an expert, but you should be excited about where the space is going - Strong communication skills — you can explain what you built and why it matters to both technical and non-technical audiences - A collaborative mindset and willingness to learn fast in a lean team environment - Experience with frameworks like LangChain, Hugging Face, or OpenAI APIs - Exposure to MLflow, dbt, or similar tools - Familiarity with data visualization tools (Tableau, Power BI, or similar) - Any experience with Palantir Foundry or AIP is a bonus Benefits - Competitive salary - Paid vacation/holidays/sick time - Comprehensive benefits package including 401K, medical, dental, and vision care - On the job/cross training opportunities - Encouraging and collaborative team environment - Dedication to safety through our Zero Harm policy Company Overview - Johnson Controls offers smart buildings that create safe, healthy, and sustainable environments. It was founded in 1885, and is headquartered in Cork, Cork, IRL, with a workforce of 10001+ employees. Its website is http://www.johnsoncontrols.com. Company H1B Sponsorship - Johnson Controls has a track record of offering H1B sponsorships, with 9 in 2026, 61 in 2025, 57 in 2024, 80 in 2023, 95 in 2022, 81 in 2021, 93 in 2020. Please note that this does not guarantee sponsorship for this specific role.