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LUZA Group

Backend Engineer (Python)

LUZA Group
Portugal · Full-time · Mid-Senior

Job Title: Backend Engineer (Python)

Location: Portugal

Work Regime: Full-time & Remote (must reside in Portugal)

Overview / Summary:

We are seeking a Python Backend Engineer to join a high-impact AI-focused project. The role involves building and scaling production-grade backend services, with a strong emphasis on cloud-native architectures and AI platform integrations. The project will be delivered by a team of six engineers working collaboratively to design, implement, and optimise robust backend solutions.

Responsibilities and Tasks:
  • Design, develop, and maintain backend services using Python for production environments
  • Design, develop, and maintain backend services using Python for production environments
  • Develop and deploy cloud-native solutions using AWS services such as Lambda, EC2, and S3
  • Integrate AI and foundation model services using platforms such as AWS Bedrock, Google Vertex, or Microsoft AI Foundry
  • Analyse and optimise application performance through profiling, debugging, and refactoring
  • Collaborate closely with other engineers and stakeholders to deliver scalable and reliable solutions
  • Contribute to architectural decisions, code quality standards, and best practices across the team


Requirements

Mandatory Requirements:
  • +5 years of experience in Backend Development with Python and experience building and operating production applications
  • Experience with AWS services, including Lambda, EC2, S3, and their APIs
  • Proven expertise in designing, building, and consuming GraphQL APIs
  • Strong background in performance optimisation using Python profiling, debugging, and refactoring tools
  • Experience with AI platform APIs (AWS Bedrock, Google Vertex, Microsoft AI Foundry, or similar)
  • Knowledge of prompt engineering and experience with frameworks such as LangChain, LlamaIndex, Haystack, or other RAG solutions is a plus



Benefits

Important:
  • Our company does not sponsor work visas or work permits. All applicants must have the legal right to work in the country where the position is based.
  • Only candidates who meet the required qualifications and match the profile requested by our clients will be contacted.


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Key Skills

Ranked by relevance

python ai aws cloud graphql s3
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Posted
Jan 21, 2026
Type
Full-time
Level
Mid-Senior
Location
Lisbon
Company
LUZA Group

Industries

IT Services IT Consulting

Categories

Information Technology

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