Backend Engineer

We are seeking a talented Backend Engineer to help us architect and build the next iteration of our AI-powered products. You will drive the innovation of our AI integration and build modern, scalable, real-time architecture, unlocking new capabilities and performances, starting from our conversational AI products. You’ll collaborate closely with AI engineers, product managers, and the broader engineering team.

Responsibilities

• Architect, develop, and maintain scalable, robust backend services, starting from our voice and chat AI applications.
• Experiment with new technologies to achieve real-time and seamless integrations, implementing POCs to try the latest trends in AI environment, partnering with AI/LLM engineers.
• Integrate 3rd party API integration such as Twilio (voice), WhatsApp, ElevenLabs, OpenAI and others.
• Implement real-time communication features (websockets, streaming), conversation architectures, and advanced voice capabilities.
• Design, build, maintain, and improve multi-agent orchestration frameworks for AI-powered conversations.
• Collaborate on CI/CD pipelines, ensure robust monitoring, logging, and operational support.
• Write clear documentation and support knowledge transfer within the team.

What to Expect in Your Journey With Us

Your First Week:

• Set up your development environment
• Participate in onboarding sessions
• Start exploring our product and familiarize yourself with the team

Your First Month:

• Gain familiarity with our workflows and processes
• Tackle and resolve support tickets
• Develop, test, and deploy your first feature to production
• Monitor the feature’s performance and impact

After Three Months:

• Achieve deep understanding of our AI system integration
• Deliver three to five new features to production
• Identify opportunities for product improvements and have some of your proposals scheduled for upcoming development cycles

After Six Months:

• Collaborate closely with our AI/LLM engineering team
• Research and assess integration of new frameworks and ideas into our architecture
• Build and present proof of concepts (POCs) to demonstrate the potential impact of adopting this new technology

Must-have:

• 3+ years of experience in OOP Backend Engineering
• Proven skills in building real-time APIs (websockets, streaming, etc.) and familiarity with async programming
• Hands-on experience integrating LLMs (preferablyOpenAI), knowledge of MCP and exposure to multi-agent architectures
• Experience integrating with third party communications APIs. Previous experience with Twilio and/or Whatsapp is highly desirable
• Experience with database technologies (SQL and NoSQL), caching techniques and performance tuning
• Experience with automated testing tools at various levels (unit testing, integration testing, e2e testing)
• Strong communication and collaboration skills

Nice-to-have:

• Experience working with containerization (Docker) and cloud infrastructure (AWS, GCP, or Azure).
• Experience with conversational AI frameworks (chatbot, voice assistant) and with AI/ML frameworks (LangChain, LangGraph) 
• Experience integrating with 3rd party communications APIs. Previous experience with Twilio and/or Whatsapp is highly desirable.
• Previous work migrating legacy systems to modern stacks.
• Experience with real-time speech processing, TTS/STT, and telephony systems and PBXs (Asterisk, FreePBX, etc.)

✨ What we offer:

We value a healthy work-life balance and long-term growth. Benefits vary by location, but here’s what you can expect:

Shared benefits

• 🏡 100% remote work, with the option to join our offices in Bologna or Barcelona
• 🎂 One extra day off for your birthday
• 🌱 Access to iFeel – our mental wellbeing platform

Italy-specific

• 🍽️ €8/day meal vouchers – lunch is covered if you're in the Bologna office
• 🩺 Private health coverage via Metasalute

 Spain-specific

• ❤️ Comprehensive private health insurance with Adeslas
• 💳 Flexoh – flexible compensation platform
• 💪 Wellhub – gym & wellness network membership
• 🌍 Language courses

🤝  How does the recruitment process work?

1. Online test – online async exercise to get a first sense of your tech skills.
2. HR interview – a friendly chat to get to know you, your motivations, and tell you more about Tuotempo, our culture, and the team.
3. Technical interview – with our Tech Managers, including practical exercises to evaluate your approach and problem-solving skills as a developer.
4. Final interview — a broader conversation to align on expectations and future growth. If it’s a match, we’ll move forward with the offer!