Software Developer building Node.js/TypeScript and Python/FastAPI APIs for Liberty Mutual Canada's commercial insurance platform. Developing AWS serverless and LLM - powered underwriting applications.
About the role
- Lex technical lead building enterprise Amazon Lex bots and conversational experiences for telecommunications company Connex Telecommunications. Integrating Lex with Amazon Connect and AWS serverless services.
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
- 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
- Design fallback, clarification, interruption, escalation, and error-handling strategies
- Apply conversational design and prompt-engineering principles to improve customer interactions
Requirements
- 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
- Mandatory 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, and multilingual bot development
- Mandatory AWS Lambda, Amazon DynamoDB, Amazon API Gateway, and Amazon Connect skills
- English and French experience preferred
- AWS Associate-level or Professional-level certification preferred
- Amazon Bedrock experience preferred
- Knowledge of intent classification, entity recognition, prompt engineering, conversational design, natural language processing, natural language understanding, and generative AI fundamentals
Job title
Job type
Experience level
Salary
Not specified
Degree requirement
No Education Requirement
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Associate Developer building AWS serverless APIs and Python LLM services for Liberty Mutual Canada’s commercial insurance platform. Supporting API integrations, testing, and agentic engineering practices.
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