?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! ??

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? 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

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📌 Backend Developer Senior - Java (Argentina)
🏢 Muttdata
📍 Argentina