Senior Software Engineer - SMB (Hyrbid)
Posted Oct 5, 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 production issue you debugged under pressure. What did you learn?
What they are checking: Whether they stay methodical during incidents and improve systems afterward.
Tell me about a time you mentored a junior developer. How did you help them grow?
What they are checking: Whether they share knowledge and raise the team's skill, which the posting expects of senior engineers.
Tell me about a time you worked with Analytics or Operations to solve a business problem.
What they are checking: Whether they understand business value and can partner outside engineering.
What would you do
There are two good ways to solve a problem and your teammate prefers the other one. How do you decide?
What they are checking: Whether they weigh trade-offs openly and can commit to a choice, since the posting says most problems have several solutions.
Product wants a feature shipped this week, but you see a risk to how customer data is handled. What do you do?
What they are checking: Whether they raise risk clearly and propose a safer path in a regulated lending business.
About the work
Design a service that takes small business loan applications and calls several third-party APIs for data. How would you structure it?
What they are checking: Whether they can design microservices with clear boundaries, retries and failure handling for outside dependencies.
How would you design the database schema for loan applications that change status many times?
What they are checking: Whether they understand schema design, history tracking and indexes for a real lending workflow.
A query that used to take 50 milliseconds now takes 5 seconds in production. How do you find out why?
What they are checking: Whether they can read query plans, check indexes and data growth, and fix slow SQL safely.
How would you make an event-driven system handle the same message twice without double-charging or double-funding?
What they are checking: Whether they understand idempotency, which matters a lot when money moves.
How do you run a database migration on a live system without downtime?
What they are checking: Whether they know safe migration patterns like additive changes and backfills.
How do you split work between a React frontend in TypeScript and backend services in Java, Python or Go?
What they are checking: Whether they can work full stack and design clean API contracts between layers.
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Practice this out loudThe full job description
As published by Enova.