Jobs › State of Wisconsin Investment Board
Senior Software Engineer
Posted Aug 26, 2026 · We last checked this listing on Oct 6, 2026
Apply at State of Wisconsin Investment Board
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 production API you designed and owned end to end. What decisions did you make early that paid off or hurt you later?
What they are checking: Whether they truly owned a service through its lifecycle and learned from their design tradeoffs.
Tell me about a time you pushed back on a business request because the technical approach was risky.
What they are checking: Whether they can advocate for sound engineering while keeping a good working relationship with the business.
How do you mentor less experienced engineers through code reviews?
What they are checking: Whether they raise the team's skill level, which is expected of a senior engineer.
What would you do
A trading desk says an API you own is returning wrong numbers right before market close. Walk me through your response.
What they are checking: Whether they can triage calmly, communicate with users and fix the problem under real business pressure.
SWIB manages pension assets for over 700,000 people. How does that change how you think about testing and reliability?
What they are checking: Whether they connect their engineering standards to the real consequences of errors for beneficiaries.
About the work
How would you design an integration between an investment system and a downstream data platform so it handles late or duplicate data safely?
What they are checking: Whether they think about idempotency and data correctness, which matter when the data drives investment decisions.
What does good monitoring look like for a service supporting critical investment workflows?
What they are checking: Whether they define meaningful alerts and metrics rather than just collecting logs.
How do you build automated deployment for a cloud-native service so releases are routine and low risk?
What they are checking: Whether they have real CI/CD experience that reduces the chance of breaking critical workflows.
How do you version an API that several internal teams depend on without breaking them?
What they are checking: Whether they manage change carefully for internal consumers they cannot force to upgrade.
How do you keep secrets and credentials safe in automated cloud workflows?
What they are checking: Whether they follow secure practices that a financial institution must enforce.
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Practice this out loudThe full job description
As published by State of Wisconsin Investment Board.
Apply at State of Wisconsin Investment Board