Backend Platform Engineer Senior (Python/FastAPI)

muttdata· Operations
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📍 Buenos AiresFull Time / Hybrid Work

About this role

🚀 Join Our Remote Data Products & Machine Learning Startup! 🚀


At Muttdata, we build innovative Data Products and Machine Learning solutions that help companies solve complex business challenges. As a fast-growing, remote-first startup, we're passionate about technology, collaboration, and continuous learning.

We are looking for a Backend Platform Engineer  to join our team  and work within the AI Platform team of a large-scale organization🐶🚀
This team maintains the backend platform behind the organization's AI models and agents, including the services that integrate with agentic AI, observability, and MCP servers.  Hybrid work model.

🚀 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
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    🔍 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 and develop backend services with FastAPI.
  • Integrate the platform with agentic AI services.
  • Maintain the platform for agentic models, including its observability.
  • Develop and manage MCP servers throughout their entire lifecycle.
  • Design and operate relational and non-relational databases.
  • Apply good authentication and security practices.
  • Collaborate across the full stack (frontend, backend, and AI).
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Required Skills 💻

  • 5+ years of experience with Python and strong command of its best practices.
  • Advanced knowledge of FastAPI or similar frameworks.
  • Experience with relational and non-relational databases.
  • Knowledge of platforms for agentic models and of observability.
  • Knowledge of MCP development and lifecycle.
  • Familiarity with LangChain and LangGraph.
  • Experience integrating agentic AI services.
  • Basic knowledge of cloud.
  • Experience working in platform teams.
  • Good authentication and security practices.
  • Curiosity, a drive to stay up to date, and willingness to work across the full stack.
  • Stack: Python, FastAPI, LangChain, LangGraph, MCP, relational and non-relational databases, Cloud.
    •  

Nice to have 💻

  • React and TypeScript.

🎁 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

Frequently Asked Questions

Is the salary disclosed for the Backend Platform Engineer Senior (Python/FastAPI) position at muttdata?
The salary for this Backend Platform Engineer Senior (Python/FastAPI) role at muttdata is not publicly listed. Click "Apply Now" to learn more about the compensation package on their official careers page.
Where is the Backend Platform Engineer Senior (Python/FastAPI) position at muttdata located?
This Backend Platform Engineer Senior (Python/FastAPI) role at muttdata is based in Buenos Aires. The position is listed as on-site or hybrid. Check the full job description or apply directly to confirm the work arrangement.
Is the Backend Platform Engineer Senior (Python/FastAPI) role at muttdata full-time or part-time?
This is listed as a Full Time / Hybrid Work position. It is posted as a Backend Platform Engineer Senior (Python/FastAPI) role in the Operations department at muttdata.
Which team or department does the Backend Platform Engineer Senior (Python/FastAPI) at muttdata belong to?
This Backend Platform Engineer Senior (Python/FastAPI) position is part of the Operations department at muttdata. See the full job description for more information about the team structure and responsibilities.
How do I apply for the Backend Platform Engineer Senior (Python/FastAPI) position at muttdata?
Click the "Apply Now" button on this page. You will be redirected to muttdata's official application portal hosted on lever where you can submit your application directly.
When was the Backend Platform Engineer Senior (Python/FastAPI) job at muttdata posted?
This Backend Platform Engineer Senior (Python/FastAPI) position at muttdata was posted on Oct 8, 2026. Apply as soon as possible — early applications are often reviewed first.
Backend Platform Engineer Senior (Python/FastAPI)
muttdata
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