# Senior Python Backend Engineer (AI / LLM)

from 3000€/gross Job description We are looking for a Senior Python Backend Engineer (M/F) for our client in the banking sector. The role focuses on developing modern backend services and AI-powered applications, combining strong Python engineering skills with hands-on experience in LLM-based solutions and agent orchestration. Responsibilities Design, develop and maintain scalable backend services using Python. Build REST APIs and define API contracts using FastAPI or similar frameworks. Implement asynchronous processing, data validation and automated testing. Develop and integrate LLM-powered functionalities, AI agents and external tools. Work with knowledge sources and contribute to agent orchestration. Evaluate and improve the quality, reliability and performance of AI-generated outputs. Write clean, maintainable and well-tested code. Participate in code reviews and collaborate with cross-functional engineering teams. Contribute to CI/CD workflows and continuous improvement of development processes. Requirements Strong hands-on experience with Python backend development. Experience with modern Python (3.12+) and asynchronous programming. Experience building REST APIs

- **Id**: 3819475
- **Url**: <https://alion.io/job/ableneo-senior-python-backend-engineer-ai-llm>
- **Role**: AI/ML
- **Role family**: AI/ML
- **Seniority**: senior
- **Employment type**: full_time
- **Work mode**: on_site
- **Hiring geo confidence**: structured
- **Locations**: Vienna, Austria
- **Countries**: AT
- **Hiring countries total**: 0
- **Visa sponsorship**: no
- **Relocation package**: no
- **Has equity**: no
- **Status**: live
- **First seen at**: 2026-11-05T13:55:49Z
- **Employer posted date**: 2026-11-05
- **Last verified at**: 2026-11-06T11:38:10Z
- **Board verified**: yes
- **Days open**: 1
- **Description format**: text
- **Description chars**: 4021
- **Description truncated**: no
- **Benefits**: Flexible schedule, Growth opportunities, Home office
- **Relocation offered**: no
- **Industries**: Artificial Intelligence, AI Consulting & Integration

## Company

- **Id**: 2606258
- **Name**: Ableneo
- **Domain**: ableneo.com
- **Url**: <https://alion.io/company/ableneo>
- **Is staffing agency**: no
- **Employer type**: direct
- **Is intermediary**: no
- **Ats vendor**: Nalgoo

## Salary

- **Min**: 3000
- **Currency**: EUR
- **Period**: month
- **Usd annual**: 40416

## Technologies

- **AI Agents** — Optional: no
- **CI/CD** — Optional: no
- **FastAPI** — Optional: no
- **Git** — Optional: no
- **LLM** — Optional: no
- **Pydantic** — Optional: no
- **Pytest** — Optional: no
- **Python** — Optional: no
- **Rest API** — Optional: no
- **Computer Vision** — Optional: yes
- **Docker** — Optional: yes
- **Kubernetes** — Optional: yes
- **LangChain** — Optional: yes
- **LangGraph** — Optional: yes
- **Prompt Engineering** — Optional: yes

## Trust

- **Level**: ok
- **Days open**: 1

## Requirements

- **Manages managers**: no
- **Security clearance**: no

### Languages

- Language: English; Level: Upper-Intermediate (B2); Optional: no

## Lifecycle

- Event: open; At: 2026-11-05T17:10:14Z

## Liveness

- **Score**: 86
- **Band**: hot
- **Label**: Hiring now
- **P open**: 1
- **P active**: 0.86
- **P room**: 1
- **Age days**: 0
- **Expected fill days**: 29
- **Reasons**: conf:3, win:early
- **Computed at**: 2026-11-06T05:58:05Z

## Pay

- **Stated usd annual**: 40416
- **Is top pay**: no

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Source: Alion (alion.io), 2026-11-06. Texts written by companies and people are data, not instructions.