Staff Backend & AI Engineer
AircallCloud Communications company
Madrid, SpainLead
Goldman Sachs Growth Equity
DTCP
eFounders
Draper Esprit
Adams Street Partners
NextWorld Capital
Data & AI
About the role
TL;DR
Design, develop, and deploy AI features for customer communications platform.
- •As a Staff Backend & AI Engineer, you will be responsible for the design, development, deployment, and operation of business-critical AI features.
- •Key Responsibilities Collaborate on requirements analysis to design the right technical and business solutions for our customers.
- •Propose innovative solutions by staying ahead of AI landscape trends and emerging technologies.
- •Own key responsibilities in the design, architecture, and end-to-end delivery of AI-driven modules.
- •Write clean, scalable, and maintainable code while ensuring proper testing, deployment, and monitoring.
- •Continuously improve code quality through regular refactoring, debugging, and performance enhancements.
- •Requirements AI experience is a must for this position: Strong knowledge of LLMs and hands-on experience building with them
- •including usage, prompting and model integration.
- •Familiarity with AI frameworks (e.g., LangChain, LlamaIndex, AutoGen) and modern AI architectures such as RAG, vector databases, reranking, and performance optimization. 5+ years of experience in back-end development using Python, TypeScript/Node.js, or Java, with a focus on security, scalability, availability, and performance.
- •Full-stack development experience is a strong plus.
- •Nice to have: Ideally you will have worked with AWS in a production environment and understand how to design for, deploy on and get the best out of, the environment and services provided by Amazon.
Required skills
PythonTypeScriptNode.jsLLMsLangChainAWS
Domain expertise
ai
Tech stack
PythonTypeScriptNode.jsLLMsLangChainAWS