Software Developer - SES Inc.

Software Developer (Python)

Location: Calgary, Alberta

About Us:

We're SES, a software startup in Calgary. We build software that helps engineers estimate the capital cost of building large industrial and process plants — the pumps, compressors, vessels, piping, and structures that go into a facility before anyone breaks ground. It's work that's traditionally slow, manual, and scattered across countless spreadsheets, and we're replacing it with something fast, rigorous, and genuinely good to use. We're a small team, heads-down, preparing to commercially launch our product.

A note, because it filters for the right person: industrial cost estimation is never going to trend online. There are no viral demos here. On the surface it's deeply unglamorous — which is exactly why we love it. Underneath the "boring" label is a genuinely hard, high-stakes problem that almost nobody has built good software for, with real users who have real budgets on the line. If that makes you a little curious instead of a little sleepy, keep reading.

This is a broad role. Our product is a Python desktop application, and you'll work across all of it — the user-facing interface, the logic beneath it, and the data that drives it. We care a great deal about the experience people have using the software, so strong UI development is a major part of the job — but you won't be boxed into a single layer. You'll own features end to end and write Python across the whole stack.

What You'll Do

• Build and ship features end to end — from the interface people click on down to the logic and data behind it.
• Design and build the desktop user interface: responsive, intuitive screens, clear data visualization, and reporting users can act on. This is a large part of the role.
• Work across the whole application rather than one layer — application logic, data handling, and the everyday plumbing that keeps a desktop product solid.
• Investigate and fix issues wherever they live, and keep the product fast, stable, and pleasant to use.
• Take part in code review and hold a high standard for clean, maintainable code.
• Spot the rough edges nobody assigned you and fix them, instead of filing them away as someone else's problem.

What We're Looking For

• Bachelor’s degree or higher in Engineering and Computer Science or a related field.
• Strong Python, used in production on real software you've shipped.
• Real strength in UI development — you've built and shipped user-facing interfaces, you've sweated layout, interaction, and the details, and you genuinely care how software feels to use.
• A generalist's instinct — comfortable working across the whole application rather than staying in one lane.
• A genuine problem solver who self-manages: you can take an ambiguous goal, own it end to end, and deliver with minimal hand-holding.