Back-End Developer III
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Job Description
Backend Developer optimizing applications based on Large Language Models and ensuring efficient prompt responses at GFT, fostering innovation in AI solutions.
Responsibilities:
- Develop and optimize applications based on Large Language Models (LLMs), ensuring response quality and prompt efficiency;
- Agent Orchestration: Design and implement complex flows and multi-agent systems using LangChain and LangGraph for reasoning automation;
- Data Architecture for AI: Implement RAG (Retrieval-Augmented Generation) strategies, including vector databases and indexing techniques for semantic search;
- Backend Development: Build robust, high-performance APIs in Python (FastAPI/Django) to serve AI models at scale;
- Cloud Scalability: Develop and deploy solutions using the AWS ecosystem, focusing on AI services, serverless computing, and containers;
- Quality and Monitoring: Establish model testing standards (evaluation of hallucinations, latency, and cost) and ensure the development lifecycle (LLMOps).
Requirements:
- Advanced Python: Deep mastery of the language, including concurrency, static typing, and software engineering best practices (SOLID, Clean Code);
- AI Frameworks: Strong experience building chains with LangChain and cyclical/graph workflows with LangGraph;
- LLM Providers: Experience integrating models via APIs (OpenAI, Anthropic) and via AWS Bedrock;
- Cloud Computing (AWS): Hands-on knowledge of Lambda, ECS/EKS, S3, and databases (RDS/DynamoDB);
- Software Engineering: Proficiency with Git, Docker, and CI/CD pipelines applied to backend projects.
Benefits:
- Multi-benefits card – choose how and where to use it.
- Education grants for undergraduate, graduate, MBA, and language courses.
- Certification incentive programs.
- Flexible working hours.
- Competitive salaries.
- Annual performance reviews with a structured career plan.
- Opportunity for international career development.
- Wellhub and TotalPass.
- Private pension plan.
- Childcare assistance.
- Health insurance.
- Dental insurance.
- Life insurance.
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