Principal Scientist leading research and development for Kraft Peanut Butter in Canada. Collaborating with teams to drive product development and ensure quality standards.
About the role
- Senior Applied Scientist at MaintainX enhancing scheduling systems through Python optimization and collaboration with product design teams. Focused on real-world applications of AI-driven scheduling.
Responsibilities
- Own and evolve the Python optimization service that powers the Scheduling Agent, modeling, solving, and iterating on the constraint formulation as new use cases emerge.
- Design and implement increasingly sophisticated scheduling capabilities: trade and crew constraints, irregular capacity patterns, production downtime windows, multi-site considerations, and reactive re-scheduling.
- Build and maintain API routes and tools that expose the solver to GenAI agent workflows (tool calling, structured input/output).
- Partner with PM and design to translate messy real-world scheduling problems into solver constraints, and push back when "optimal" isn't what users actually want.
- Iterate the solver with real users via design partnerships and pilot deployments. Take feedback from human schedulers seriously and reflect it back into the model.
- Contribute to the surrounding Python service: performance, observability, testing, and reliability of the optimization runtime.
- Help shape how scheduling intelligence integrates with the broader MaintainX product over time, including learning from execution data to improve solver inputs.
Requirements
- 5+ years of professional software engineering experience, with significant time spent on optimization, constraint programming, or operations research problems shipped to real users.
- Strong fluency with CP-SAT and at least one other optimization paradigm (MILP via Gurobi/CPLEX/HiGHS, metaheuristics, or similar). You've hit the limits of one approach and made informed choices about when to use which.
- Solid Python service engineering: APIs, async, testing, profiling, observability. You can own a production service end-to-end.
- Academic grounding in Operations Research, Industrial Engineering, Computer Science, or a related quantitative field, at minimum a strong undergraduate foundation; advanced degrees are common in this space but not required.
- Track record of iterating optimization systems with real users, you've felt what happens when a human rejects the "optimal" answer and you've redesigned the model in response.
- Product mindset and delivery orientation, you ship, you measure, you iterate. You think about the user outcome, not just the objective function.
- Comfort with ambiguity. You can co-design the constraint data model with the team rather than waiting for a clean spec.
- Familiarity with GenAI tooling (LLM tool calling, structured output, prompt design for constrained generation) is expected.
Benefits
- Competitive salary and meaningful equity opportunities.
- Healthcare, dental, and vision coverage.
- 401(k) / RRSP enrollment program.
- Take what you need PTO.
- A Work Culture where:
- You'll work alongside folks across the globe that reflect the MaintainX values: Smart Humble Optimists.
- We believe in meritocracy, where ideas and effort are publicly celebrated.
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