Senior Python Backend Developer

2 weeks ago

Bucharest, Bucureşti, Romania Ams Hr Full time €90,000 - €120,000 per year
About the job Senior Python Backend Developer - L67VR9V5

Senior Python Backend Developer

Enabling Scalable, Reliable, and Intelligent Software Systems

We are seeking a Senior Python Backend Developer with a strong background in designing, implementing, and deploying scalable, high availability, low latency and high concurrency backend systems, with a focus on Generative AI applications and services.

The ideal candidate has proven experience in backend development (APIs, data pipelines, SDKs, etc.) and is familiar with Generative AI concepts, including building and operationalizing LLM based applications, RAG pipelines, agentic workflows and data pipelines for AI/ML systems.

WHAT YOURE GOING TO DO

Design, implement, and maintain scalable backend services in Python

Build and maintain data pipelines for AI / ML applications for production use-cases

Operationalize and deploy Generative AI systems (APIs, SDKs, pipelines)

Develop APIs to serve AI features to downstream applications

Orchestrate agentic workflows using frameworks like LangChain, LangGraph or custom solutions

Ensure monitoring, logging, and observability of GenAI services

Collaborate cross-functionally to ensure system performance, scalability, and reliability

Note:

This profile is for a hands-on software engineer with strong AI product exposure, not a data science or AI/ML research position role

Emphasis is on operational excellence, deployment experience, and systems-level thinking for real AI applications

WHAT WERE LOOKING FOR

QUALITIES

Continuously seek self-improvement and embrace change in your work.

Take initiative and maintain accountability to boost productivity.

Cultivate a positive, team-oriented attitude and strong communication skills.

Stay organized and balance multiple tasks in a dynamic environment.

Approach problems with a solution-focused mindset and rely on your skills.

Pay attention to detail and ensure consistency in your work.

Work independently to unlock creativity and reach your full potential.

QUALIFICATIONS

5 years of practical experience as a Python backend developer

Strong knowledge of software engineering principles, clean code practices, and testing methodologies

Practical experience with Python backend frameworks: FastAPI (preferred), Flask or Django

Practical experience with SQL databases and related Python libraries

Hands-on experience with cloud platforms: Azure (preferred), AWS or GCP

Experience designing and implementing scalable backend services (APIs, data pipelines, SDKs, etc.)

Practical experience with building and deploying AI-based applications, including LLMs and embedding models (e.g., OpenAI, Anthropic, Hugging Face)

Familiarity with Retrieval-Augmented Generation (RAG) based systems, agentic workflows and Generative AI applications

Familiarity with containerized development with Docker

Experience with data science Python libraries such as pandas, NumPy, Scikit-learn

Experience with Python GenAI frameworks (e.g., LangChain, LangGraph) is a plus

Familiarity with CI/CD workflows in GitLab is a plus

Familiarity with monitoring and logging tools (e.g., Prometheus, Grafana) is a plus

Familiarity with gRPC for high-performance service communication is a plus

Familiarity with Model Context Protocol (MCP) is a plus

Familiarity with AI observability and tracing tools (e.g., Langfuse) is a plus

WHAT WE OFFER

A monthly amount dedicated to Well-being needs.

A monthly subscription to Medical Services.

21 vacation days / year; extra vacation days after 2 years within the company.

3 personal days / year.

Referral bonus.

Access to learning platforms for continuous self development.

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