We are looking for a Lex Senior Developer/Technical Lead.
Key Responsibilities- Build enterprise-grade Amazon Lex bots from requirements gathering through production deployment.
- Design high-performing voice and chat conversational experiences.
- Integrate Amazon Lex with Amazon Connect and AWS serverless services.
- Analyze production conversations to improve intent recognition, bot performance, and customer experience.
- Lead a small development team while remaining hands-on with coding, troubleshooting, testing, and optimization.
Conversational AI Development- Create scalable intent models, custom slot types, prompts, and dialog-management strategies.
- Optimize natural language understanding performance through continuous tuning based on production traffic and conversation data.
- Develop multilingual conversational experiences, with English and French experience preferred.
- Design robust fallback, clarification, interruption, escalation, and error-handling strategies.
- Apply conversational design and prompt-engineering principles to improve customer interactions.
Required Skills and Experience- 6 to 10 years of software development experience.
- Minimum 3 years of hands-on Amazon Lex V2 development experience.
- Minimum 3 years of experience integrating Amazon Lex with Amazon Connect.
- Strong experience designing and developing AWS serverless architectures.
- Experience leading developers while remaining actively involved in technical delivery.
- AWS Associate-level or Professional-level certification is preferred.
Mandatory Amazon Lex Technical Skills- Amazon Lex V2
- Intent and slot modelling
- Custom slot types
- Dialog management
- Session attributes
- AWS Lambda code hooks
- Prompt variations
- DTMF integration
- Confidence-score tuning
- Multilingual bot development
Mandatory AWS Development Skills- AWS Lambda
- Amazon DynamoDB
- Amazon API Gateway
- Amazon Connect
- Amazon Bedrock experience is preferred
Preferred Artificial Intelligence Knowledge- Intent classification
- Entity recognition
- Prompt engineering
- Conversational design
- Natural language processing and natural language understanding concepts
- Generative AI fundamentals
- Amazon Bedrock
