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LumApps

Senior AI Backend Engineer

LumApps

Senior Backend Engineer developing AI-driven backend systems for LumApps. Working on complex backend contributions within AI Agents Platform Team in a hybrid environment.

Posted 6/23/2026full-timeLyon • 🇫🇷 FranceSeniorWebsite

Tech Stack

Tools & technologies
AWSPostgresPythonRedis

About the role

Key responsibilities & impact
  • Own meaningful end-to-end contributions on technically complex parts of the stack
  • Independently scope and implement solutions for projects
  • Communicate technical issues clearly to cross-functional teams
  • Write meaningful code reviews and help resolve problems
  • Mentor junior engineers and elevate testing practices

Requirements

What you’ll need
  • 3–5 years of professional backend experience
  • Proficient in Python programming
  • Strong grasp of Clean Architecture and SOLID principles
  • Hands-on experience with agent orchestration frameworks like Google ADK or AWS Strands
  • Understanding of RAG architectures and LLM providers
  • Familiarity with REST APIs, SQLAlchemy, Redis, and PostgreSQL
  • Security-conscious mindset in designing systems
  • Strong communication skills in English

Benefits

Comp & perks
  • Hybrid work model – 2 days at the office, 3 days remote
  • RTT days – ~10 extra days off per year
  • Meal vouchers (SWILE) + free snacks & coffee
  • Yoga classes - Take a mindful break in our Paris office
  • Supportive parental leave and family moments — yes, even a Christmas party for your kids !
  • Health insurance (ALAN) – 60% covered + full life & disability cover
  • Afterworks, team celebrations & seasonal parties
  • Equipment of your choice
  • French & English lessons , professional development & access to Leeto CSE

ATS Keywords

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Hard Skills & Tools
PythonClean ArchitectureSOLID principlesagent orchestration frameworksGoogle ADKAWS StrandsRAG architecturesLLM providersREST APIsSQLAlchemy
Soft Skills
communication skillsmentoringproblem-solving