ppOne of the fastest-growing AI-native startups that collaborates with Joppy is looking for ab Senior Backend/Full-Stack Engineer /b (primarily backend) to help build our conversational, agentic AI platform, integrations and APIs. You'll architect and scale production-grade systems supporting hiring, onboarding, and employee experiences in real enterprise environments, working with LLMs and autonomous agents as part of the stack. /ph3What You'll Do: /h3ulliBuild and scale production-grade backend systems /liliImplement end-to-end features /liliMake pragmatic technical decisions balancing innovation with reliability /liliCollaborate with product and business stakeholders /liliShip reliable software that performs at scale /li /ulh3Technical Skills: /h3ulliTesting, logging, monitoring, performance optimization /liliData storage (SQL and NoSQL) and async message queues (Celery + RabbitMQ / Redis) /liliHigh-throughput, low-latency systems /li /ulh3Full-Stack DevOps /h3ulliCI/CD pipelines and cloud platforms /liliDeploying and scaling systems in production /li /ulh3AI (working knowledge, willingness to go deeper) /h3ulliBasic understanding of LLMs: prompt engineering, RAG,



function calling /liliFamiliarity with agentic patterns and orchestration /liliAwareness of LLM cost, guardrails, and evaluation /liliExposure to conversational/voice AI (STT/TTS, telephony) a plus /li /ulh3What Success: /h3ulliCore backend and agentic systems run reliably in production at enterprise scale /liliAI workflows meaningfully reduce operational friction for customer teams /liliThe platform compounds: new deployments get faster and more robust over time /liliTechnical foundations support autonomy, observability, and safe decision-making /liliEngineering velocity stays high without sacrificing reliability /li /ulh3Culture: /h3pWe optimize for impact, speed, and ownership - not comfort. We operate as one team, with a flat structure and extreme ownership. We ship fast, learn from production, and challenge each other directly because we care about building something that lasts. Titles matter less than outcomes. Customers come first. Momentum matters. /ph3About Joppy /h3 /p #J-18808-Ljbffr

📌 Software Engineer (AI Product) - (78K)
🏢 Joppy
📍 Madrid