Job Description

We're hiring: Tech Lead - AI Software Development (Ref: TL-AI-MTL-1112025)
GreenRocks Consulting is supporting a fast-growing ESG SaaS startup in their search for an experienced Tech Lead AI Software Development based in Montreal.
If you're passionate about leading technical decisions, building AI-powered features, and mentoring developers -- this role offers a high-impact opportunity in a scaling environment.
Role Overview
You will guide architectural decisions, ensure code quality, support team execution, and collaborate closely with Product, Design, and Data Science to deliver meaningful AI-driven outcomes. This role blends hands-on coding with leadership and team enablement.
Key Responsibilities
Technical Leadership

• Lead system design & architecture discussions
• Balance speed, scalability, and maintainability in technical decisions
• Align delivery with the broader platform, data, and AI architecture
• Work with LLM providers (OpenAI, Google, etc.)
• Build observability & monitoring tooling for AI features

Execution & Delivery

• Contribute hands-on to the codebase
• Write technical tickets complementing product specs
• Ensure reliable, high-quality delivery (planning, code reviews, mentoring)
• Align with other Engineering Tech Leads on technical consistency
• Mentor developers and elevate technical maturity across the team
• Foster a culture of excellence, learning, and ownership

Cross-Functional Collaboration

• Partner with Product, Data Science Tech Lead, and Designers
• Represent engineering trade-offs and ensure scope clarity
• Work with Platform Engineering to improve DevEx & SDLC workflows
• Contribute to technical KPIs (reliability, performance, etc.)

Job Requirements

• 8+ years software development experience, incl. 2+ years in a senior/lead role
• Proficiency in Python (or similar)
• Strong front-end skills (Angular, TypeScript or similar)
• Experience integrating & optimizing AI/LLM services
• Strong understanding of architectural patterns (event-driven, SOA, hybrid mono/microservices)
• Proven technical leadership in complex environments
• Experience with cloud infrastructure (Azure/GCP), CI/CD & DevOps
• Understanding of GenAI workflows (vector DBs, embeddings, retrieval, prompting)
• Knowledge of LangChain / LangGraph is a plus
• Fluent English (French is a strong plus)

Skills Required