Back-end Developer (Voiceflow)

Role Overview:
We are looking for a Back-end developer to join our Bot Development team on an outstaffing basis. The project is a conversational AI solution on the Voiceflow platform to support customer interactions. It focuses on designing and implementing complex voicebot flows, integrating the platform with backend systems (CRM, databases, and third-party services), and ensuring a seamless customer experience. The solution aims to improve service efficiency, automate routine queries, and provide scalable support tailored to business needs.

Start Date: 29 Sep/6 Oct
Employment type: Full-time
Project Duration: 6 months (with possible prolongation)
Location: Europe, Ukraine (remote)
Language: English B2 (upper-intermediate)

Must-have qualifications:

• 3+ years of experience delivering production-grade applications with modern JavaScript and Node.js
• Strong experience designing, building, and consuming complex RESTful APIs from scratch
• Proficiency in working with both SQL and NoSQL databases
• Experience writing unit and integration tests using frameworks such as Jest or Mocha
• ! Hands-on experience building and deploying chatbot solutions on at least one major Conversational AI platform (e.g., Dialogflow CX, Microsoft Bot Framework, Rasa, IBM Watson, or Voiceflow)
• Understanding of contact center architecture, including agent routing, skills-based assignment, and system integration patterns
• Strong client-facing and consulting skills, with the ability to translate ambiguous business requirements into concrete technical solutions
   

Nice to have:

• Experience with a modern front-end framework (preferably React) for building custom user or agent-facing components
• Familiarity with a major cloud provider (AWS, GCP, Azure) and CI/CD principles for automated testing and deployment
   

Key Responsibilities:

• Design and implement multi-turn dialogues, manage context, and ensure a smooth, personalized user experience
• Write scalable Node.js code, design/consume REST APIs, and integrate with CRMs, payment gateways, and databases
• Work with clients and product managers to translate requirements into resilient solutions, justify design decisions, and guide stakeholders
• Create and integrate custom agent-facing widgets to improve support workflows.
• Contribute to code reviews, documentation, and best practices for secure, maintainable solutions
   

Process Flow:

1. HR pre-screen + English check (0.5 h)
2. Professional interview (1 h)
3. Call with CTO and/or SA (1 h)