stubhub·Software Engineer·Technical Phone Screen·Intermediate

Intermediate

Jul 2026

Summary

StubHub software engineer interview with a deep project walkthrough question. Pretty standard format but the scope of what they wanted covered in one answer was a lot to manage in real time.

Questions Asked (1)

Walk me through a project on your resume from start to finish: the problem, your specific role, the architecture and key technical decisions you made, the tools and timeline, measurable impact, major challenges, how you worked across teams, and what you'd do differently.

System DesignTechnical Trade-offsCross-functional Alignment

Author's notes

This is basically five questions rolled into one and I didn't pace myself well.

Create a free account to read the full note

AI HintsAI Generated

Suggested Approach

Select a project that best demonstrates your end-to-end ownership, technical depth, and cross-functional collaboration. Structure your answer as a narrative that covers the problem, your role, architecture decisions, tools, timeline, impact, challenges, teamwork, and lessons learned. Keep it concise but detailed enough to show your thought process and results.

Pro tip: Quantify impact with specific metrics (e.g., latency reduction, revenue increase) and be honest about what you'd do differently—it shows self-awareness and growth. Also, tailor the project to StubHub's domain (e.g., high-traffic e-commerce, ticketing systems) if possible.

1. Set the Context and Problem

Briefly describe the project's background, the business problem it solved, and why it mattered. Mention the scale and any constraints (e.g., time, resources).

2. Explain Your Role and the Architecture

Clarify your specific responsibilities and the technical architecture. Highlight key decisions, trade-offs, and why you chose certain technologies or patterns.

3. Detail Execution: Tools, Timeline, and Teamwork

Outline the tools and processes used, the project timeline, and how you collaborated with other teams (e.g., product, design, QA). Mention any cross-functional challenges and how you navigated them.

4. Highlight Measurable Impact and Challenges

Share quantifiable results (e.g., performance improvements, cost savings, user growth) and discuss major challenges you overcame, emphasizing problem-solving and resilience.

5. Reflect on Lessons Learned

Conclude with what you would do differently and how that experience has improved your approach to future projects. This shows humility and a growth mindset.

Key Points to Mention

Specific technical decisions and trade-offs (e.g., choosing a microservice vs. monolith, database selection, caching strategy)
Quantifiable impact metrics (e.g., reduced latency by 40%, increased conversion by 15%, saved $X in infrastructure costs)
Cross-functional collaboration (e.g., working with product managers to refine requirements, coordinating with QA for testing)
Challenges faced and how you resolved them (e.g., scaling issues, tight deadlines, conflicting priorities)
Tools and technologies used (e.g., AWS, Kubernetes, React, Node.js, CI/CD pipelines)
What you'd do differently and why (e.g., better testing earlier, more scalable design from the start)

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