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Practising for the listing Senior Software Engineer, Backend (PBA - Growth). Its requirements are filled in below. When you have an answer you like, paste it with your CV in Career Mirror to see which of the job's skills it shows.
Requirements found
Onboarding Writing Python Sql
What this posting asks for
Level: Senior — The title says "Senior".
Main responsibilities
- You will be responsible for owning and delivering quarterly goals for your team, leading engineers on your team through ambiguity to solve open-ended problem…
- You will support your peers and stakeholders in the product development lifecycle by collaborating with product management, design & analytics by participati…
- You will proactively identify project, process, technology or business issues, advocate for them, and lead in solving them.
- You will support the operations and availability of your team’s artifacts by creating and monitoring metrics, escalating when needed, and supporting “keep th…
- You will foster a culture of quality and ownership on your team by setting or improving code review and design standards for your team, and advocating for th…
- You will help develop talent on your team by providing feedback and guidance, and leading by example.
- What We Look For
- You have 4+ years of experience designing, developing and launching backend systems at scale using languages like Python or Kotlin.
- You have a track record of developing highly available distributed systems using technologies like AWS, MySQL and Kubernetes.
- You have experience defining a technical plan for the delivery of a significant feature or system component with an elegant, simple and extensible design. Yo…
Competencies an interviewer will look for
- Technical skill Core
In the posting: “The Engineering team builds systems that power Affirm’s mission.” · “Whether we’re enabling new ways to pay, ensuring our platforms can scale to the most demanding levels in the industry, or developing seamless servicing exper…” · “You will foster a culture of quality and ownership on your team by setting or improving code review and design standards for your team, and advocating for th…”
Show it by: Names the tools, languages or systems used and how; Explains a technical choice and its trade-off. - Problem solving Core
In the posting: “Whether we’re enabling new ways to pay, ensuring our platforms can scale to the most demanding levels in the industry, or developing seamless servicing exper…” · “You will be responsible for owning and delivering quarterly goals for your team, leading engineers on your team through ambiguity to solve open-ended problem…” · “You will proactively identify project, process, technology or business issues, advocate for them, and lead in solving them.”
Show it by: Describes a real problem, the options considered and the one chosen; Shows how the cause was found, not just the fix. - Teamwork and collaboration Core
In the posting: “We create and manage the APIs and tools that drive checkout and merchant onboarding, and we collaborate with stakeholders to design and build custom end-to-e…” · “You will support your peers and stakeholders in the product development lifecycle by collaborating with product management, design & analytics by participati…” · “You have strong verbal and written communication skills that support effective collaboration with our global engineering team.”
Show it by: Says what they did inside a team, not only what 'we' did; Shows how a disagreement was handled. - Ownership and accountability Core
In the posting: “We create and manage the APIs and tools that drive checkout and merchant onboarding, and we collaborate with stakeholders to design and build custom end-to-e…” · “You will foster a culture of quality and ownership on your team by setting or improving code review and design standards for your team, and advocating for th…” · “Your experience demonstrates that you take ownership of your growth, proactively seeking feedback from your team, your manager, and your stakeholders.”
Show it by: Takes a task from start to finish without being chased; Owns a mistake and what was changed after it. - Adaptability and learning Core
In the posting: “You will be responsible for owning and delivering quarterly goals for your team, leading engineers on your team through ambiguity to solve open-ended problem…” · “Remote-first with flexibility built in” · “Our benefits reflect our commitment to care, transparency, and flexibility.”
Show it by: Describes learning something new quickly and using it; Shows a change of plan and how they adjusted. - Attention to detail and quality Core
In the posting: “You will foster a culture of quality and ownership on your team by setting or improving code review and design standards for your team, and advocating for th…” · “You write high quality code that is easily understood and used by others.” · “You are proficient at making significant changes in a large code base, and have developed a suite of tools and practices that enable you and your team to do …”
Show it by: Gives an example of an error caught before it caused harm; Names the check or standard they used. - Stakeholder management Core
In the posting: “The Powered by Affirm (PBA) team builds the APIs and solutions that power all of Affirm’s integrations with Enterprise Merchants and Partners.” · “We create and manage the APIs and tools that drive checkout and merchant onboarding, and we collaborate with stakeholders to design and build custom end-to-e…” · “You will support your peers and stakeholders in the product development lifecycle by collaborating with product management, design & analytics by participati…”
Show it by: Shows how they aligned people with different goals; Explains how they handled a 'no' from someone senior. - Planning and organisation Core
In the posting: “You have experience defining a technical plan for the delivery of a significant feature or system component with an elegant, simple and extensible design.” · “Own a piece of what you build: Our employee stock purchase plan (ESPP) lets you buy Affirm stock at a discount.”
Show it by: Shows how priorities were set when everything was urgent; Mentions deadlines met and how. - Communication Supporting
In the posting: “You have strong verbal and written communication skills that support effective collaboration with our global engineering team.”
Show it by: Adapts the message to the listener; Gives an example of explaining something clearly in writing or speech. - Data and analysis Supporting
In the posting: “You will support the operations and availability of your team’s artifacts by creating and monitoring metrics, escalating when needed, and supporting “keep th…”
Show it by: Uses a number to describe the situation or the result; Explains what the data showed and what was done with it.
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Read the interview answer library
Strong sample answers to every practice question below, with why they work and the mistakes that cost points. Nothing to type.
Interview journey 25 questions in groups of 5, a new random order each time, then the HR Perspective analysis; no account needed.
HR Perspective question bank Browse 53 prompts with topic filters, answer criteria and follow-up practice.
Practice questions
- Tell me about yourself. Dedicated step-by-step practice.
- If an interviewer asks something improper How to respond to questions about age, family, origin or health.
- Built from this posting (8):
- Walk me through a piece of work where you used your strongest technical skill. What exactly did you do? From this posting
- Tell me about a difficult problem you solved at work. How did you find the cause? From this posting
- Describe a time you worked with another team to deliver something. What was your part? From this posting
- Tell me about a task you took from start to finish without anyone asking you to. From this posting
- How have you used onboarding in your work? Walk me through one real example. From this posting
- Tell me about a problem you solved using writing. From this posting
- Tell me about a time you helped someone on your team get better at their work. From this posting
- Tell me about a time you had to explain something complex to someone outside your field. From this posting
- This posting reads as Software engineering: its questions come first.
- Walk me through a feature you built from start to finish. What tools and languages did you use? Software engineering
- Tell me about the hardest bug you have tracked down. How did you find the cause? Software engineering
- Describe a technical design decision you made and the trade-off behind it. Software engineering
- Tell me about a time you disagreed with a teammate in a code review. Software engineering
- Production is down and you are the first engineer to notice. What do you do in the first 30 minutes? Software engineering
- How do you decide what to test before you ship a change? Software engineering
- Tell me about a time you helped a less experienced engineer get unstuck. Software engineering
- Your estimate for a feature turns out to be badly wrong halfway through. What do you do? Software engineering
- Walk me through how you would check whether a report's numbers are right.
- Describe a time you handled an upset customer or colleague.
- Tell me about a time you had several deadlines at once. How did you decide what to do first?
- Give an example of a mistake you caught before it caused a problem.
- Tell me about a time you taught someone how to do something.
- Describe a time you took the lead without being asked.
- Tell me about a time you had to explain something complicated in simple terms.
- Describe a process you improved.
- Do you have any questions for us?
- Why do you want to work here?
- Why is there a gap in your employment? Difficult question
- Why did you leave your last job? Difficult question
- Why are you changing careers? Difficult question
- What is your greatest weakness? Difficult question
- What are your salary expectations? Difficult question
- You seem overqualified for this role. Why do you want it? Difficult question
- Improper-question practice: How old are you? / Do you have children? / Where are you from originally?
- A customer is angry about a delay you did not cause. What do you do?
- How do you keep track of many open customer requests?
- Tell me about a time you could not give a customer what they wanted.
- You find that the inventory count does not match the system. What do you do?
- Tell me about a time a shipment or delivery went wrong.
- How do you make sure safety rules are followed on a busy shift?
- Two managers ask you to book the same room at the same time. What do you do?
- How have you used spreadsheets in your work?
- Tell me about a time you had to enter or check a lot of data accurately.
- Tell me about a sale or agreement you are proud of.
- A prospect says your price is too high. How do you respond?
- How do you keep your pipeline organised?
- Tell me about a technical problem you solved on your own.
- You find a bug right before a release. What do you do?

