Senior Software Developer

Location: Kelowna, BC (preferred) or remote within North America

Type: Full-time, permanent

Software architecture lead

Boyd Thermal by Eaton builds commercial thermal and fluid simulation software (CFD) used by engineers at major electronics, power, and industrial companies to design cooling systems. The product is mature Windows desktop software with a long history, an active solver development program, and a small team of very experienced developers, which means the work is unusually broad: We are looking for one experienced generalist developer to work alongside our software architect. Your first project is a

standalone desktop application for our network flow solver , built on prototype work that already exists. It is a node and edge network editor for fluid flow and thermal networks, driving a native C++ solver core, with results visualization and reporting. C# on Windows , so you would own the application layer, the interop boundary to the native solver, the UX, and the packaging and installer.

It is a good first project deliberately: real scope, real users, clear boundaries, and it teaches you the physics and the domain vocabulary before you are dropped into the larger legacy codebase.

Solver and numerics work in Python and C++ (finite volume CFD, conjugate heat transfer, two-phase boiling, porous media, iterative linear solvers)

Python 3.x, wxPython, VTK 3D visualization

C and C++ bound to Python (Cython today, nanobind for new work)

Geometry and meshing, including CAD kernel integration

Occasional web work: internal dashboards, customer facing portals, and tooling

Build, packaging, licensing, and release engineering on Windows

Porting the product to Linux.

Windows is and remains the primary target, but a Linux port is on the roadmap and is a significant piece of work: native extension builds, toolkit and driver differences, packaging, and licensing all have to be solved a second time





professional software development, with a track record of owning non trivial systems end to end (design, build, ship, support)

Python, C#, C, C++ , and able to become productive in the others quickly. Multi-language fluency is a hard requirement, not a bonus

on Windows: real UI work, application architecture, state management, threading, installers and deployment. Linux

as well, since a Linux port of the product is on the roadmap

Solid engineering fundamentals: data structures, performance analysis and profiling, memory, and debugging hard failures (crashes, races, corruption, numerical drift)

AI and agentic development tooling . We use coding agents heavily and expect you to as well: writing valuable prompts and specs, building agent workflows and custom tooling, reviewing generated code critically, and knowing where these tools mislead you. Being interested in AI is not enough, we want someone already working this way

Fluent written and verbal English, and the judgment to raise a concern early rather than deliver the wrong thing on time

Numerical or scientific computing background: linear algebra, ODE and PDE discretization, convergence behaviour, floating point pitfalls

CFD, FEA, thermal, electrical or fluid network solvers

Cross-platform porting experience , particularly Windows to Linux: native toolchains and build systems, path and filesystem assumptions, GUI toolkit and graphics driver differences, packaging and distribution

3D graphics or visualization (VTK, OpenGL, or similar)

Web development. We favour Vue 3 with a Python FastAPI backend

CAD geometry kernels (Parasolid, OpenCASCADE) and mesh generation

A physics, mechanical, or aerospace engineering background alongside the software experience

This is production software with paying customers and decades of history. Our preference is a candidate who is in, or willing to relocate to,

We celebrate diversity and are committed to creating an inclusive environment for all employees.

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📌 Software Architect - fully remote (Toronto)
🏢 Boyd
📍 Toronto