Senior Engineer, Applied AI in Toronto

Location: Toronto, ON (Onsite/Hybrid)

Job Type: Full-Time

Salary Range: 135K – 170K CAD per year (negotiable)

About Fulfillment IQ (FIQ): Fulfillment IQ is a supply chain engineering and transformation company that helps brands, retailers, and 3PLs design, build, and scale high-performance logistics operations. We work at the intersection of strategy, operations, and technology where we solve complex, real-world problems across warehouse design, automation, order management, transportation, and end-to-end supply chain execution.

Role Overview: This is a high-impact, senior engineering role, where engineers are expected to operate with significant ownership and minimal oversight. The role focuses on building production-ready AI systems in an environment where speed, correctness, and architectural decisions have long-term implications.

Ideal Candidate’s Profile: A seasoned AI engineer with hands-on experience in developing and deploying real LLM systems, who excels in environments with significant ownership responsibilities and values impactful work more than structured, low-risk settings.

Responsibilities & Expectations:

• Design and build production-grade LLM systems (RAG, agents, APIs)
• Architect systems that minimize rework in fast-evolving environments
• Own end-to-end delivery of critical AI features
• Define and implement evaluation frameworks
• Optimize systems for cost, latency, and reliability
• Collaborate across teams where needed
• Provide technical guidance where applicable

Must-Haves (non-negotiables):

• Strong backend/software engineering foundation (Python, APIs, system design)
• Proven experience shipping LLM-powered features to production
• Deep expertise in RAG systems, LLM evaluation methodologies, prompt engineering, and agent architectures
• Strong understanding of trade-offs (cost, latency, scalability)
• Ability to work independently in ambiguous, fast-moving environments

Nice-to-Have:

• Fine-tuning experience
• Inference stack experience
• Observability tooling
• Prior experience in early-stage or high-ownership teams
• Public work demonstrating depth

Education: Bachelor's or master's degree in computer science or a related discipline

Technical Skills:

• Advanced Python and backend engineering
• LLM systems
• API design and system architecture
• Docker, Git, CI/CD
• Understanding of inference systems and scaling

Soft Skills:

• High ownership and accountability
• Ability to operate in ambiguity
• Strong decision-making and trade-off analysis
• Clear communication with cross-functional teams

What Success Looks Like in the First 90 Days:

• By the end of Month 1: Deeply understand Crosstalk/Zync architecture and ongoing projects; contribute meaningfully to ongoing systems; identify gaps or risks in current implementations.
• By the end of Month 2: Own and deliver a critical feature or system component end-to-end; improve an existing system; demonstrate strong independent execution.
• By the end of Month 3: Act as a trusted senior engineer on the team; drive architectural decisions or improvements; deliver measurable impact.

Why You’ll Love Working Here:

• Build systems that directly impact global commerce and supply chain performance.
• We invest in mentorship, leadership development, learning budgets, and long-term career growth.
• We support remote and hybrid work models.
• We recognize impact, celebrate milestones, and reward performance.
• Work alongside talented engineers, product leaders, and award-winning domain experts.

Perks you’ll appreciate:

• Comprehensive health and dental coverage for you and your family
• Competitive paid time off and flexible leave policies
• Retirement savings programs and employer contributions
• Dedicated learning and development budget
• Remote and hybrid work options
• Equipment allowances, internet reimbursements, business travel coverage, and employee stock options

Accommodations: FIQ is committed to an inclusive and accessible recruitment process. Accommodations are available on request at any stage of recruitment and assessment.

Candidate Privacy: Your personal information is collected and used for recruitment purposes in accordance with FIQ's Candidate Privacy Notice.

Equal Opportunity: Fulfillment IQ is a people-first company built on trust, collaboration, and ownership. We are proud to be an equal opportunity employer.