Senior Software Developer - Web
Posted Sep 23, 2026 · We last checked this listing on Oct 6, 2026
Likely interview questions for this role
Written from this job description, not a generic list. Each one notes what the interviewer is really checking.
About your past
Tell me about a large web application you helped modernize. What did you change, and how did you keep it running while you did?
What they are checking: Whether they can modernize a business-critical platform without breaking it for live customers.
Tell me about a time you influenced the architecture or technical direction of a project.
What they are checking: Whether they have led technical decisions at a senior level, not just implemented someone else's plan.
Tell me about a production incident you helped resolve. What did you change afterward so it wouldn't happen again?
What they are checking: Whether they learn from failures and fix root causes instead of just patching symptoms.
What would you do
How do you mentor a developer who is capable but keeps shipping code that's hard to maintain?
What they are checking: Whether they coach in a way that builds skill and judgment rather than just rewriting the work.
A product partner wants a big new feature fast, but you see that the current architecture won't support it well. How do you handle that conversation?
What they are checking: Whether they can explain technical tradeoffs to non-engineers and find a workable path together.
About the work
Uline.com serves customers across North America. If a key page became slow, how would you track down the cause across the full stack?
What they are checking: Whether they can diagnose performance from the browser through the backend and database, not just one layer.
How do you decide when to refactor legacy code and when to leave it alone?
What they are checking: Whether they weigh risk, cost and business value instead of rewriting for its own sake.
Walk me through how you'd design a change to a checkout or ordering flow so it's safe to release.
What they are checking: Whether they think about testing, feature flags, rollback and monitoring for changes that touch revenue.
The posting mentions exploring AI-powered solutions. Where do you think AI could genuinely help a high-volume e-commerce site, and where would you be cautious?
What they are checking: Whether they think practically about AI, judging real value and risk rather than following hype.
What does a good code review look like for a complex initiative, and how do you keep reviews from becoming a bottleneck?
What they are checking: Whether they balance quality with team speed in a large codebase.
How do you think about accessibility and front-end performance for a site where business customers place orders all day?
What they are checking: Whether they care about real users' experience on the front end, not only backend correctness.
Practice this interview out loud.
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Practice this out loudThe full job description
As published by Uline.