As part of our growth, we are building a new engineering hub in Chișinău. This is a unique opportunity to join a mature product company that truly values your expertise. Shape your long-term career by building products with a global impact!

We are looking for a skilled Lead Full- Stack Engineer to join our team and help build a greenfield WhatsApp conversational bot embedded into our money remittance platform. This is not just another chatbot project — it combines AI-driven prompt engineering, human-centered conversational UX, and complex backend integrations for a product that will handle regulated, real-money transactions. You’ll join after the prototype stage, helping to shape the long-term system architecture as we transition from prototype to full-scale production, and directly influence both the technical architecture and user experience.

Position Opportunity:

• Want to work at the intersection of AI, human behavior, and software? Here, prompt engineering is not an afterthought — it’s the heart of the product. You’ll design prompts and flows that keep the conversation useful, natural, and on track, even when users try to take it sideways
• Interested in designing how humans talk to machines? You’ll be crafting natural language UX: guiding users who don’t know the “script” through complex financial flows while keeping the interaction friendly, efficient, and complaint
• Like building rock-solid backend systems? From integrating with the WhatsApp Cloud API to payment processing systems, you’ll engineer services that connect AI conversations to real-world transactions
  

What you’ll do:

• Design, implement, and refine prompt engineering strategies for LLM-based conversational flows using LangChain, LangGraph, and custom NLP logic
• Collaborate with Product Owners, QA, and other developers to shape conversational UX — anticipating user needs, guiding them through scenarios, and handling unpredictable inputs gracefully
• Develop and maintain backend systems in Python, NestJS, and Node.js for integrations with Meta’s WhatsApp Cloud API, payment platforms, and internal services
• Implement secure, compliant flows for transactions and personal data handling
• Deploy and operate services in Docker/AWS using AWS CDK and modern DevOps practices
• Contribute to the full development lifecycle: architecture, coding, testing, deployment, and monitoring
  

What you'll need to excel in this role:

• Deep knowledge and 5+ years of production experience
• Solid backend development skills with Node.js/NestJS (Python is a plus)
• Experience integrating with complex third-party APIs (payments, messaging, etc.).Proficiency in frontend development using JavaScript/TypeScript and React
• Familiarity with Сloud and container technologies
• Excellent written and verbal communication skills in English (B2 level or higher)
  

Would be a plus:

• Experience with Meta’s WhatsApp Business Platform or other messaging APIs (Telegram, Viber, etc.)
• Experience with LangChain and LangGraph
• Experience in business analysis and communications with users and stakeholders. Work on financial/payment-processing systems
• Experience in building scalable and highly-available system architectures
• Hands-on experience with Amazon Web Services (AWS)
  

What we offer:

• Opportunity to be part of the first IDT engineering team in Moldova
• Hybrid work opportunity & flexible working hours
• Stable job with long-term growth perspective
• Competitive salary with annual performance review
• Really good hardware
• Compensation for professional training, seminars, and conferences (Moldova DevCon)
• An exciting and challenging job with talented people around
• Referral program – get rewarded for helping us grow the team with talented people
• Company-supported English classes to enhance your professional growth
• Modern office with free parking provided by our partner FusionWorks
• More perks for the Chisinau office full-time employees
  

We’d love to learn more about you! Submit your application through the link below and let’s see where this journey takes us!

A few words about us:

IDT Corporation is a global communications company founded in 1990 and headquartered in Newark, New Jersey. We are industry leaders in prepaid communication and payment services and one of the largest international voice carriers. We are listed on the NYSE, employ over 1800 people across 20 countries, and have over $1.5 billion in revenues.

We are not ”another big IT corporation”— we encourage and support in-house entrepreneurs in developing their ideas into business actions.

We understand the challenge of being apart from those who matter most. BOSS Revolution is our flagship brand. It includes International Calling, Mobile Top Up, and Money Transfer services. It enables people to keep in touch with family and friends around the world as well as to send money to more than 50 countries with low fees and great exchange rates.