Senior Backend Python Developer
Full-time
Muttdata
Role Description
We're looking for a proactive, technically strong Senior Backend Python Developer to join our team. You'll work on a strategic project for one of our banking clients, designing and maintaining the microservices that power our AI platform — including model gateway, agent orchestration, and retrieval APIs — with a strong focus on clean architecture, scalability, and reliability.
- Design and maintain the platform's core microservices: model gateway, agent orchestration, and retrieval APIs.
- Apply clean/hexagonal architecture principles to ensure maintainable, testable, and scalable systems.
- Implement resilience and scalability patterns: caching, rate limiting, retries, and event-driven/message queue architectures.
- Own the full lifecycle of services: design, implementation, testing, deployment, and monitoring.
- Collaborate with architects, DevOps, and other engineering teams to define technical solutions aligned with business needs.
- Ensure code quality through testing, code reviews, and adherence to engineering best practices.
- Contribute to technical decision-making regarding infrastructure, tooling, and system design.
- Participate in incident response and troubleshooting for production systems.
Qualifications
- 5+ years of backend experience in Python, with microservices running in production.
- Strong experience with FastAPI (or an equivalent async framework).
- Hands-on experience applying hexagonal / clean architecture in real production systems.
- Experience with scalability and resilience patterns: caching, rate limiting, retries, message queues / event-driven architecture.
- Experience with relational databases (PostgreSQL) and NoSQL databases (e.g., DynamoDB).
- Experience with Docker, Kubernetes, CI/CD, and observability tools — ideally on AWS.
Requirements
- Experience integrating LLMs (streaming, LiteLLM, LangGraph, RAG) - Nice to have.
- Familiarity with Langfuse - Nice to have.
- Experience with Kafka or SQS - Nice to have.
- Knowledge of API security standards (OAuth2/JWT) - Nice to have.
- Experience with Terraform - Nice to have.
- Previous experience working in the banking/financial industry - Nice to have.
Benefits
- 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.
Vacancy posted 12 hours ago
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