Backend Developer Senior - Java

🚀Join Our Data Products and Machine Learning Development Remote Startup!🚀

Mutt Data is a dynamic startup committed to crafting innovative systems using cutting-edge Big Data and Machine Learning technologies.

We're looking for a Backend Developer Senior  to join our team and help design and build robust, scalable backend services as part of an AI-driven solutions initiative for one of the largest e-commerce and fintech platforms in Latin America. If you consider yourself a data nerd like us, we'd love to connect! 🐶🚀 

🚀 What We Do

• Leveraging our expertise, we build modern Machine Learning systems for demand planning and budget forecasting.
• Developing scalable data infrastructures, we enhance high-level decision-making, tailored to each client.
• Offering comprehensive Data Engineering and custom AI solutions, we optimize cloud-based systems.
• Using Generative AI, we help e-commerce platforms and retailers create higher-quality ads, faster.
• Building deep learning models, we enhance visual recognition and automation for various industries, improving product categorization, quality control, and information retrieval.
• Developing recommendation models, we personalize user experiences in e-commerce, streaming, and digital platforms, driving engagement and conversions.

🌟 Our Partnerships

• Amazon Web Services
• Astronomer
• Databricks

🌟 Our Values

• 📊 We are Data Nerds
• 🤗 We are Open Team Players
• 🚀 We Take Ownership
• 🌟 We Have a Positive Mindset
  🔍 Curious about what we’re up to? Check out our case studies and dive into our blog post to learn more about our culture and the exciting projects we’re working on! 🚀

Responsibilities 🤓

• Design, develop, and maintain backend services in Java.
• Contribute to architectural decisions and help define technical standards.
• Build and evolve microservices-based architectures.
• Apply hexagonal architecture principles (or equivalent approaches with clear separation of concerns).
• Design reusable, well-abstracted components.
• Conduct thorough code reviews, promoting high-quality standards and best practices.
• Collaborate within a team focused on AI-driven solutions. 

Required Skills 💻

• Strong experience developing services in Java.
• Proven experience designing and implementing microservices architectures.
• Practical experience applying hexagonal architecture (or similar layered architecture patterns).
• Ability to design modular systems with proper abstraction and code reuse.
• Willingness to work in an AI-oriented team environment.
• Experience working with AI-assisted development (active use of tools such as GitHub Copilot, Claude Code, or similar tools as part of your daily workflow).
• Open mindset toward integrating AI tools into the development lifecycle.
• Comfortable adapting to new AI-driven workflows and development dynamics. 

Nice to have 💻

• Knowledje of or hands-on experiencie with AI agents. 

🎁 Perks

• 🌍 Remote-first culture – work from anywhere!
• 🚀 In-Company English Lessons.
• 💪 Wellhub or sports club stipend to stay active
• 🚀 AWS, DBT, Google Cloud, Azure & Databricks certifications fully covered
• 🍕 Food credits via Pedidos Ya – because great work deserves great food.
• 🎂 Birthday off + an extra vacation week (Mutt Week! 🏖️)
• 🤝 Referral bonuses – help us grow the team & get rewarded!
• ✈️🏝️ Annual Mutters' Trip – an unforgettable getaway with the team!
• 👶 Monthly Childcare Reimbursement  – Because supporting families matters too