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Atlassian·Machine Learning Engineer·Onsite - Behavioral / Leadership·Senior

Senior
Jul 2026

Summary

Behavioral round for an ML Engineer role at Atlassian, focused entirely on values alignment and leadership signals. Standard stuff but the follow-up probing caught me off guard a few times.

Questions Asked (5)

Q1

Tell me about a time you pushed back on a decision or requirement you disagreed with.

Conflict ResolutionStakeholder Management
Author's notes

I had a decent story ready but the follow-up on how I handled the conflict after pushing back is where I fumbled.

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AI HintsAI Generated

Suggested Approach

Choose a specific instance where you disagreed with a technical or product decision, and walk through how you used data and user impact to make your case. Emphasize that you listened to other perspectives, proposed alternatives, and ultimately aligned with the team—even if the final decision differed from your initial stance. Show that your pushback was constructive and led to a better outcome or learning.

Pro tip: Frame your pushback as a collaborative effort to de-risk the decision, not as a personal conflict. Highlight how you made it easy for the other person to say yes by offering data, a prototype, or a phased approach.

1. Set the Context

Briefly describe the project, the decision or requirement you disagreed with, and why it mattered. Keep it concise so you can focus on your actions.

2. Explain Your Disagreement

Articulate your concerns clearly, backing them with data, user impact, or technical trade-offs. Show that you understood the other side’s rationale.

3. Describe Your Approach

Explain how you raised your concerns—e.g., in a 1:1, with a written proposal, or by running an experiment. Focus on respectful, solution-oriented communication.

4. Share the Outcome

State what happened: did the decision change, was a compromise reached, or did you align with the original plan? Emphasize the result and any lessons learned.

5. Reflect and Connect to Atlassian

Summarize what you learned and how it reflects Atlassian’s values (e.g., 'Don’t #@!% the customer', 'Play as a team'). Show how you’d handle similar situations in the future.

Key Points to Mention

  • Use data and metrics to support your position, not just opinions.
  • Demonstrate empathy by acknowledging the other person’s perspective and constraints.
  • Propose alternative solutions or a phased approach to reduce risk.
  • Show flexibility and willingness to commit once a decision is made.
  • Highlight the positive outcome or learning from the experience.
  • Connect your actions to Atlassian’s values and collaborative culture.

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

Q2

Describe a situation where you drove a meaningful change or improvement in your team or process.

Cross-functional AlignmentAdaptability & Ambiguity
Author's notes

Went fine.

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AI HintsAI Generated

Suggested Approach

Use the STAR method to structure your answer, focusing on a specific ML project where you identified a gap, aligned cross-functional partners, and delivered measurable impact. Emphasize how you navigated ambiguity and adapted your approach to drive adoption and results.

Pro tip: Quantify the impact of your change with metrics that matter to Atlassian, such as model performance improvements, reduced latency, or increased team velocity, and highlight how you brought others along in the process.

1. Set the Context

Briefly describe the team, the ML system or process, and the problem or opportunity you identified. Highlight why it was important and any constraints or ambiguities.

2. Describe Your Initiative

Explain the change you proposed or led, including how you got buy-in from stakeholders and cross-functional partners. Focus on your specific actions and decisions.

3. Show Adaptability

Detail how you navigated challenges, iterated on your approach, and adjusted to feedback or new information during implementation.

4. Quantify the Impact

Share concrete results: improved model accuracy, reduced training time, increased deployment frequency, or other metrics that demonstrate the value of your change.

5. Reflect and Learn

Summarize what you learned, how it influenced your future work, and how it might apply to similar challenges at Atlassian.

Key Points to Mention

  • Cross-functional collaboration: how you aligned data scientists, engineers, product managers, and other stakeholders.
  • Technical leadership: your role in designing or implementing the ML solution or process improvement.
  • Adaptability: how you handled ambiguity, changing requirements, or unexpected obstacles.
  • Measurable outcomes: specific metrics (e.g., accuracy, latency, cost savings, team velocity) that show the impact.
  • Scalability and sustainability: how the change was adopted and maintained beyond the initial project.
  • Alignment with Atlassian values: e.g., 'Don't #@!% the customer', 'Play as a team', 'Be the change you seek'.

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

Q3

Can you give an example of helping someone else grow, through coaching or mentoring?

Cross-functional Alignment
Author's notes

Easiest one for me personally.

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AI HintsAI Generated

Suggested Approach

Choose a specific mentoring story where you helped a colleague or junior engineer grow in a technical or cross-functional skill. Use the STAR method to describe the situation, your actions as a coach, and the measurable impact on the person and the team. Emphasize how your coaching improved collaboration and outcomes, aligning with Atlassian's values.

Pro tip: Focus on how you tailored your coaching to the individual's needs and how their growth benefited the team, not just themselves. Quantify the impact where possible (e.g., reduced onboarding time, improved model accuracy, faster deployment).

1. Set the Context

Briefly describe the situation: who you mentored, their role, and the skill gap or goal. Explain why this mattered for the team or project.

2. Describe Your Coaching Approach

Outline the specific actions you took: how you assessed their needs, set goals, provided resources, and gave feedback. Highlight your empathy and adaptability.

3. Show the Growth

Explain how the person improved: new skills, increased confidence, or better performance. Use concrete examples or metrics.

4. Connect to Team Impact

Describe how their growth benefited the team or project: improved collaboration, faster delivery, better model performance, etc.

5. Reflect and Learn

Share what you learned from the experience and how it shaped your approach to mentoring or cross-functional collaboration.

Key Points to Mention

  • Specific mentoring techniques (e.g., pair programming, code reviews, setting learning goals)
  • Cross-functional collaboration (e.g., working with data scientists, product managers, or software engineers)
  • Measurable outcomes (e.g., reduced time to production, improved model accuracy, increased team velocity)
  • Empathy and adaptability in coaching style
  • Alignment with Atlassian values (e.g., 'Open company, no bullshit', 'Build with heart and balance', 'Don't #@!% the customer')
  • Long-term impact on the mentee's career and the team's capabilities

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

Q4

Walk me through a time you had to make progress on something without clear direction or requirements.

Adaptability & AmbiguityRoadmap Prioritization
Author's notes

Blanked for a second and picked a story that was maybe too small in scope.

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AI HintsAI Generated

Suggested Approach

Use the STAR method to describe a specific project where you faced ambiguity, focusing on how you proactively defined the problem, set milestones, and iterated. Highlight your ability to create structure, align stakeholders, and deliver value despite unclear requirements. Emphasize the lessons learned and how you applied them to future projects.

Pro tip: Show that you not only navigated ambiguity but also reduced it for others by creating documentation, prototypes, or clear success metrics—this demonstrates leadership and impact beyond your individual work.

1. Set the Context

Briefly describe the project, the business goal, and why the direction or requirements were unclear. Mention the stakeholders involved and the potential impact.

2. Define the Problem and Success Criteria

Explain how you took initiative to clarify the problem by asking questions, researching, and proposing initial success metrics. Show that you didn't wait for perfect information.

3. Create a Plan and Iterate

Describe the steps you took to make progress: breaking down the work, prioritizing high-impact experiments, and setting up feedback loops. Highlight any tools or methodologies (e.g., Agile, MVP) you used.

4. Execute and Adapt

Detail how you executed your plan, overcame obstacles, and adjusted based on new information or stakeholder feedback. Emphasize collaboration and communication.

5. Measure Results and Reflect

Share the outcomes: what you delivered, how it impacted the project or business, and what you learned. Connect the experience to your ability to handle ambiguity in future roles.

Key Points to Mention

  • Proactive problem definition: how you translated vague goals into concrete objectives and metrics.
  • Stakeholder alignment: how you communicated with and managed expectations of cross-functional partners.
  • Iterative approach: using MVPs, experiments, or agile sprints to make progress despite uncertainty.
  • Technical decision-making: how you chose tools, models, or architectures when requirements were fluid.
  • Impact and results: quantifiable outcomes (e.g., model accuracy, time saved, revenue impact) and lessons learned.
  • Adaptability: how you pivoted when new information emerged and kept the project on track.

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

Q5

Tell me about a mistake you made and how you handled it.

Root Cause AnalysisAdaptability & Ambiguity
Author's notes

Said something honest and they seemed to appreciate it.

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AI HintsAI Generated

Suggested Approach

Choose a real mistake with meaningful stakes, such as a model deployment issue or data pipeline error, and walk through it using a structured narrative: context, mistake, impact, root cause, fix, and lessons learned. Emphasize ownership, the specific technical and process changes you made, and how you prevented recurrence.

Pro tip: Show that you turned the mistake into a systemic improvement—e.g., adding automated validation or a post-mortem ritual—so the interviewer sees you as someone who raises engineering standards, not just fixes one bug.

1. Set the context briefly

Describe the project, your role, and the goal in 1-2 sentences so the interviewer understands the stakes without unnecessary detail.

2. Own the mistake clearly

State exactly what you did wrong and its impact, using 'I' statements and avoiding blame or vague language.

3. Explain your root cause analysis

Walk through how you investigated the issue—e.g., checking data drift, code review, or logs—and identify the underlying cause, not just the symptom.

4. Describe your fix and prevention

Detail the immediate remediation and the long-term changes you implemented, such as adding tests, monitoring, or process improvements.

5. Share the lesson and growth

Conclude with what you learned and how it changed your approach, tying it to broader engineering principles like validation or communication.

Key Points to Mention

  • A specific technical mistake relevant to ML engineering, such as a data leakage issue, model performance degradation, or deployment error.
  • Quantifiable impact where possible (e.g., 'caused a 10% drop in accuracy' or 'delayed the release by two days').
  • Root cause analysis process, including tools or methods used (e.g., debugging, log analysis, experiment tracking).
  • Immediate fix and long-term preventive measures (e.g., automated data validation, CI/CD checks, monitoring alerts).
  • Ownership and accountability, avoiding excuses or blaming others.
  • Lessons learned and how you applied them to future projects, showing growth and adaptability.

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