DocPlanner

Backend Engineer

DocPlanner

full-time

Posted on:

Location Type: Remote

Location: Remote • 🇪🇸 Spain

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Job Level

Mid-LevelSenior

Tech Stack

NoSQLSQL

About the role

  • 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.

Requirements

  • 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 (preferably OpenAI), 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.
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
  • €8/day meal vouchers – lunch is covered if you're in the Bologna office
  • Private health coverage via Metasalute
  • Comprehensive private health insurance with Adeslas
  • Flexoh – flexible compensation platform
  • Wellhub – gym & wellness network membership
  • Language courses

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard skills
OOPBackend Engineeringreal-time APIswebsocketsstreamingasync programmingLLMsdatabase technologiesSQLNoSQL
Soft skills
communicationcollaboration