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S-PRO

Integration Engineer

S-PRO

Integration Engineer developing and maintaining integrations for enterprise voice-agent platform. Collaborating with clients to ensure seamless integration with CRM and telephony systems.

Posted 6/8/2026full-timeRemote • 🇨🇭 SwitzerlandMid-LevelSeniorWebsite

Tech Stack

Tools & technologies
JavaScriptNode.jsPythonTypeScriptVoIP

About the role

Key responsibilities & impact
  • Design, develop, and maintain integrations between Parloa AMP and CRM/ticketing platforms using REST APIs.
  • Implement caller identification workflows using customer data, phone numbers, account IDs, and reference numbers.
  • Enable automated ticket/case creation and synchronization between voice interactions and CRM systems.
  • Integrate Parloa AMP with enterprise telephony environments using SIP/VoIP technologies.
  • Configure call routing, number provisioning, trunk connectivity, transfer flows, and human-agent handoff scenarios.
  • Develop and maintain API authentication mechanisms, including OAuth 2.0, API keys, token refresh processes, and webhook integrations.
  • Build backend integration logic, data mappings, error handling, retry mechanisms, and fallback processes.
  • Troubleshoot and resolve issues across multiple systems using API logs, SIP traces, and monitoring tools.
  • Collaborate with client stakeholders, technical teams, and solution architects throughout implementation and deployment phases.

Requirements

What you’ll need
  • Strong experience with REST API integrations, including JSON, HTTP, data mapping, error handling, retries, and fallback strategies.
  • Experience with authentication and integration technologies such as OAuth 2.0, API keys, webhooks, and secret management.
  • Solid understanding of SIP and VoIP technologies, including signaling, trunking, call routing, transfers, and handoff scenarios.
  • Experience working with conversational AI or voice automation platforms (Parloa AMP preferred; Cognigy, AudioCodes, Twilio, Genesys, or Dialogflow CX also acceptable).
  • Hands-on experience with at least one CRM/ticketing platform (Salesforce or Ivanti preferred).
  • Hands-on experience with at least one telephony/contact center platform (Five9, Mitel, or 3CX).
  • Proficiency in backend development or scripting using Node.js, TypeScript, Python, or similar technologies.
  • Strong troubleshooting and cross-system debugging skills.
  • German language proficiency at C1 level or higher for client-facing communication.
  • Good English communication skills for internal collaboration.

Benefits

Comp & perks
  • Flexible schedule.
  • Remote work model.
  • Paid vacations.
  • Paid sick leaves.

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools
REST API integrationsJSONHTTPdata mappingerror handlingretriesfallback strategiesOAuth 2.0Node.jsTypeScript
Soft Skills
troubleshootingcross-system debuggingclient-facing communicationcollaboration