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Chicago·Software Engineer·Onsite - Behavioral / Leadership·Junior

Junior
May 2026Chicago

Summary

Behavioral round at a Chicago firm for a new-grad SWE role. An engineering manager ran the whole thing and was really zeroed in on internship experience, specifically how you worked with people rather than just what you shipped.

Questions Asked (3)

Q1

Tell me about an internship or project experience where you grew the most. What specifically could you not do at the start, and what could you do by the end?

Adaptability & Ambiguity
Author's notes

This one tripped me up because I kept wanting to say 'I learned a lot' and move on.

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AI HintsAI Generated

Suggested Approach

Choose a specific internship or project where you faced a steep learning curve, and structure your answer to contrast your starting abilities with your ending abilities. Focus on concrete technical skills and how you developed them, emphasizing your adaptability and growth mindset.

Pro tip: Quantify your growth with specific metrics or outcomes (e.g., 'reduced API response time by 40%') and explicitly connect the skills you gained to the role you're interviewing for.

1. Set the Context

Briefly describe the internship or project, your role, and the initial challenge or goal. Keep it concise to save time for the growth story.

2. Highlight the Starting Point

Clearly state what you could not do at the beginning, such as specific technologies, concepts, or soft skills you lacked. Be honest but not self-deprecating.

3. Describe the Learning Process

Explain the actions you took to bridge the gap: self-study, mentorship, pair programming, online courses, etc. Show initiative and resourcefulness.

4. Demonstrate the End Result

Detail what you could do by the end, including specific technical accomplishments and how they contributed to the team or project. Use metrics if possible.

5. Connect to the Role

Summarize how this growth experience prepares you for the software engineering role and the company's needs, emphasizing adaptability and continuous learning.

Key Points to Mention

  • Specific technical skills gained (e.g., a programming language, framework, or tool)
  • Concrete examples of tasks you initially struggled with and later mastered
  • Quantifiable outcomes or impact of your work (e.g., performance improvements, features shipped)
  • Soft skills developed, such as communication, teamwork, or problem-solving
  • How you sought feedback and incorporated it to improve
  • Relevance of the growth to the target role and company

AI-generated suggestions, not part of the candidate's original notes. May be inaccurate — verify before relying on them.

Q2

Describe a critical mistake you made. What were the consequences and what did you change so it wouldn't happen again?

Root Cause Analysis
Author's notes

Probably the question I was least prepared for phrased that bluntly.

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AI HintsAI Generated

Suggested Approach

Choose a real, non-catastrophic mistake where you owned the failure and drove the fix. Briefly describe the situation, then spend most of your answer on the root cause and the systemic changes you made to prevent recurrence. Show that you turned the mistake into a lasting improvement in your engineering practice.

Pro tip: Pick a mistake with real but contained impact, and emphasize the process or tooling change you introduced—not just that you 'were more careful.' Interviewers trust candidates who show they fixed the system, not just their own behavior.

1. Set the context briefly

Describe the project, your role, and the mistake in 2-3 sentences without excuses or excessive detail. Make it clear you take full ownership.

2. Explain the consequences

State the concrete impact—e.g., downtime, data issue, delayed release, customer impact—and how you communicated it to stakeholders. Avoid minimizing or dramatizing.

3. Perform root cause analysis

Walk through why it happened using a structured approach (e.g., 5 Whys, fishbone) and identify the underlying process or system gap, not just the immediate trigger.

4. Describe the corrective and preventive actions

Detail the specific changes you made—code, tests, monitoring, process, documentation—and how you verified they worked. Show you fixed the system, not just the symptom.

5. Share the lasting lesson

Explain how this experience changed your engineering habits or team practices going forward, and how it made you a more reliable engineer.

Key Points to Mention

  • Ownership and accountability without blaming others or external factors
  • Concrete, measurable consequences (e.g., outage duration, affected users, rollback cost)
  • Root cause analysis technique (e.g., 5 Whys, blameless postmortem) to show structured thinking
  • Specific preventive changes: automated tests, CI/CD checks, monitoring/alerting, code review improvements, runbooks
  • Verification that the fix worked (e.g., no recurrence, improved metrics, team adoption)
  • How the experience improved your judgment or engineering practices long-term

AI-generated suggestions, not part of the candidate's original notes. May be inaccurate — verify before relying on them.

Q3

What was the biggest obstacle you faced during an internship, and walk me through how you actually got through it?

Root Cause AnalysisAdaptability & Ambiguity
Author's notes

I talked about a hard-to-reproduce bug.

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AI HintsAI Generated

Suggested Approach

Choose a technical obstacle from your internship that required root cause analysis and adaptability, and narrate it using a clear problem-action-result structure. Focus on the specific steps you took to diagnose and resolve the issue, highlighting your engineering mindset and collaboration skills.

Pro tip: Emphasize what you learned from the obstacle and how you applied that learning to prevent similar issues, showing growth and proactive problem-solving.

1. Set the Context

Briefly describe the internship, your role, and the project you were working on to give the interviewer necessary background.

2. Define the Obstacle

Clearly state the biggest obstacle you faced, focusing on a technical challenge that required root cause analysis and adaptability.

3. Explain Your Approach

Walk through the steps you took to diagnose the root cause, including any tools, methodologies, or collaboration with teammates.

4. Describe the Resolution

Detail how you implemented the solution, any obstacles you overcame during implementation, and the outcome.

5. Reflect and Learn

Summarize what you learned from the experience and how it has influenced your approach to similar challenges since.

Key Points to Mention

  • Root cause analysis techniques (e.g., 5 Whys, debugging tools, log analysis)
  • Adaptability to changing requirements or unexpected technical hurdles
  • Collaboration with mentors or team members to overcome the obstacle
  • Specific technical skills or tools used to resolve the issue
  • Quantifiable results or impact of the resolution (e.g., performance improvement, bug fix)
  • Lessons learned and how you applied them to future projects

AI-generated suggestions, not part of the candidate's original notes. May be inaccurate — verify before relying on them.