Senior Node.js Engineer & Conversational AI Developer

Node.js Developer For Conversational AI

We are seeking a highly experienced Node.js developer with strong expertise in conversational AI using Google Dialogflow CX. The ideal candidate will design, build, and maintain scalable back-end services, conversational workflows, and integrations that power enterprise-grade virtual agents across voice and chat channels.

Key Responsibilities

Node.js (Core Back-End Engineering)

• Architect, develop, and maintain scalable RESTful and event-driven services in Node.js.
• Design and optimize high-performance APIs to integrate with multiple systems (CRM, ERP, databases, 3rd party services).
• Implement secure coding practices, including input validation, authentication/authorization, and API rate limiting.
• Write unit/integration tests and enforce CI/CD best practices.
• Optimize application performance for high throughput and low latency in production environments.
• Collaborate with DevOps teams to containerize applications (Docker) and deploy on GCP services (Cloud Run, GKE, App Engine).

Conversational AI (Dialogflow CX & Contact Center AI)

• Design and implement conversational flows, intents, entities, and fulfillment logic in Dialogflow CX.
• Develop custom webhooks (Node.js/Express) to handle complex business logic and dynamic responses.
• Integrate Dialogflow CX with contact center platforms (e.g., Genesys, Avaya, Twilio, CCAI Insights).
• Configure and manage Dialogflow CX environments (Dev, QA, Stage, Prod) and CI/CD pipelines for agent promotion.
• Implement multi-turn, context-aware conversations with advanced Dialogflow CX features (event handlers, flows, routes).
• Ensure seamless omnichannel support (chatbots, IVR/telephony, messaging platforms).
• Work with NLP/NLU teams to continuously improve intent accuracy, training phrases, and entity recognition.

Collaboration & Leadership

• Work closely with product owners, designers, and conversation designers to translate requirements into natural conversational experiences.
• Mentor junior developers in Node.js and conversational AI best practices.
• Participate in code reviews, architecture discussions, and solution design sessions.
• Provide technical leadership for conversational AI projects, ensuring scalability and maintainability.

Required Qualifications

• 8–10 years of hands-on experience with Node.js (Express.js, Nest.js, or equivalent frameworks).
• Strong knowledge of JavaScript (ES6+), TypeScript, and asynchronous programming.
• Proven experience in designing APIs (REST, GraphQL) and integrating with external services.
• 3+ years of experience with Google Dialogflow CX (building, maintaining, and deploying production IVR Voice agents)
• Experience with GCP services (Cloud Functions, Cloud Run, Pub/Sub, Firestore/BigQuery).
• Solid understanding of webhooks, middleware, and backend fulfillment for chat/voice bots.
• Familiarity with contact center solutions and CCAI (Contact Center AI) integrations.
• Experience with Git, CI/CD pipelines, and agile development methodologies.
• Excellent problem-solving, debugging, and performance tuning skills.

Nice to Have (Preferred)

• Experience with other conversational AI platforms (Amazon Lex, Microsoft Bot Framework, Rasa).
• Knowledge of speech-to-text / text-to-speech integrations (Dialogflow ES/CX with TTS/STT APIs).
• Familiarity with Kubernetes, Docker, Terraform, Cloud Build.
• Experience with analytics & monitoring tools for conversational AI (Dialogflow Insights, BigQuery analysis).
• Strong understanding of security & compliance (PII handling, GDPR, HIPAA).

Soft Skills

• Strong communication skills to collaborate with cross-functional teams.
• Ability to lead and mentor junior engineers.
• Problem-solving mindset with focus on delivering scalable enterprise solutions.
• Passion for conversational AI, NLP, and user experience design.

Salary and Other Compensation:

The annual salary for this position is between $138,000/Year to $162,000/Year depending on the experience and other qualifications of the candidate. This position is also eligible for Cognizant's discretionary annual incentive program, based on performance and subject to the terms of Cognizant's applicable plans.

What We Offer

• The chance to work with impact. Here, you're empowered to bring your biggest thinking to help our company and clients improve everyday life.
• Ownership over your career. Stay at the top of your game through our award-winning learning and development ecosystem. And when your ambitions change or we offer new opportunities, we help you pivot by providing reskilling, on-the-job learning and guidance to find new roles that might be a better fit.
• The opportunity to thrive on a high caliber team with heart. We celebrate each other's experiences and perspectives and promote a sense of belonging through our affinity groups and diversity and inclusion initiatives.
• A comprehensive total rewards package, including a competitive salary and pension plan with matching contributions.
• Flexible health and financial benefits to support you and your eligible dependents —from day one.
• True work-life balance. Be at your best through paid time off, flexible work arrangements, volunteering opportunities, social events, and so much more.

Cognizant is one of the world's leading professional services companies, transforming clients' business, operating, and technology models for the digital era. Our unique industry-based, consultative approach helps clients envision, build, and run more innovative and efficient businesses. Headquartered in the U.S., Cognizant is consistently listed among the most admired companies in the world.

Cognizant is an equal opportunity employer. Your application and candidacy will not be considered based on race, color, sex, religion, creed, sexual orientation, gender identity, national origin, disability, genetic information, pregnancy, veteran status or any other characteristic protected by federal, provincial or local laws.

If you have a disability that requires reasonable accommodation to search for a job opening or submit an application, please email CareersNA2@cognizant.com with your request and contact information.

Language requirements vary depending on roles, but we ask that all candidates have basic English proficiency for company-wide communications purposes. For roles based in Quebec, professional English proficiency is required, as you'll deliver services to and collaborate with stakeholders outside the province who may not speak French.