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Practising for the listing Software Engineer, Financial Data & Payments. 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.

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Software Engineer,  Financial Data & Payments
About Gusto

At Gusto, we're on a mission to grow the small business economy. We handle the hard stuff — payroll, health insurance, 401(k)s, and HR — so owners can focus on their craft and their customers. With teams in Denver, San Francisco, and New York, we support more than 500,000 small businesses nationwide and are building a workplace that reflects the people we serve.

All full-time employees receive competitive base pay, benefits, and equity (RSUs) — because everyone who helps build Gusto should share in its success. Offer amounts are determined by role, level, and location. Learn more about our Total Rewards philosophy .

AI is a fundamental part of how work gets done at Gusto. We expect all team members to actively engage with AI tools relevant to their role and grow their fluency as the technology evolves. AI experience requirements vary by role and will be assessed during the interview process.

About the Role:

We’re hiring seasoned engineers to join our teams that work on the financial backbone of Gusto's money movement — the ledger, reconciliation, and reporting systems that account for every dollar, and the payment profile that determines how employers fund payroll and how employees and contractors get paid. As a Gusto Software Engineer at this level, you’ll be guiding projects end-to-end by driving large technical architectural decisions (focusing on scale and modularity), understanding how to take existing systems closer to desired end states, executing on projects, and maintaining code that powers core experiences. If you’re interested in building elegant software with far-reaching effects in our modern economy, join us!

About the Team:

Financial Data & Payment Profile (FDPP) sits inside Gusto's Payments organization, which moves money safely between partners, employers, employees, government authorities, and Gusto. FDPP owns the two things that every one of those movements depends on.

Financial Data is the system of record for the money itself: the ledger and subledger behind every payment, the reconciliation that proves our books agree with our banks and partners, the investigation of the variances that surface when they do not, and the financial reporting that Accounting, Finance, and Compliance depend on. When Gusto needs to answer where a dollar is — and prove it — the answer comes from systems this team builds.

Payment Profile is what makes a payment possible in the first place: the payment methods available to a customer, the bank accounts and connections behind them, the verification that makes those accounts trustworthy, and the profile state that decides whether a payment can happen at all. Hundreds of thousands of businesses depend on this being right the first time — and on it recovering gracefully when a bank account, a connection, or a preference changes.

Here’s what you’ll do day-to-day:

• Design, build, and test the financial data systems that record every dollar Gusto moves — the ledger and subledger that serve as the system of record, the transaction models underneath them, and the financial reporting that Accounting, Finance, Compliance, and our partners rely on to close the books

• Build reconciliation at Gusto's scale: prove that our internal records agree with bank, processor, and partner statements, and make the breaks that fall out of that comparison traceable rather than mysterious

• Lead variance investigation end-to-end — the tooling, instrumentation, and runbooks that turn "the numbers don't tie" into a specific root cause, and then into a fix that eliminates the whole class of break

• Own the payment profile: how employers are set up to fund payroll and how employees and contractors are set up to be paid — the payment methods available and the rules that govern which apply to whom, the bank accounts and connections behind them, and the verification state that determines whether money can move at all

• Make setup and verification something a small business can finish on its own — instant bank verification, graceful handling of broken or revoked connections, and a clear path back to a payable state when something changes

• Help scale one of the largest Ruby/Rails and TypeScript/React applications in the world

• Collaborate on complex and ambiguous problems with partnerships from Engineering, Product Management, Design, Data Science, Accounting, Finance, Compliance, Operations, and other cross-functional teams

• Mentor and grow fellow engineers working to create holistic and scalable solutions

Here’s what we're looking for:

• Successful applicants have at least 10+ years of experience and the enthusiasm for a collaborative, test-driven environment

• Experience building fault-tolerant, mission-critical software as well as designing and developing robust, distributed systems using multiple general-purpose programming languages

• Experience influencing and guiding the work of multiple teams on scaling, refactoring, and optimizing legacy products

• Experience architecting, building, and testing large-scale production level code that is maintainable, structured, and well-documented

• An aptitude and interest in bringing clarity and simplicity to complex and ambiguous problems

• Ability to communicate technical complexity and help facilitate informed tradeoffs

• Experience in one or more of these domains is strongly preferred: ledger or subledger design, financial reconciliation, accounting systems, or payments infrastructure

• Comfort with double-entry accounting concepts — journal entries, chart of accounts, debits and credits, and tying a subledger out to the general ledger — and the ability to work with accountants and controllers in their own vocabulary

• Experience building systems where correctness, auditability, and immutability matter more than raw throughput, and where a silent data error is worse than an outage

• Bonus: Experience with bank account verification, payment rails (ACH, wire, RTP), or third-party banking data and verification providers

• Bonus: Experience with Ruby on Rails, Typescript, and React

Our cash compensation amount for this role is targeted at $183,000-$200,000 /yr in Denver & most remote locations, and $222,000-$245,000 /yr for San Francisco, Seattle & New York. Final offer amounts are determined by multiple factors, including candidate experience and expertise, and may vary from the amounts listed above.

At Gusto, we don't use titles the traditional way, as a signal of rank or hierarchy. Instead, our titles describe two things at once — your craft (what you do, e.g. Engineering, Design) and your scope of ownership (what you're accountable for) — which is why you'll see something like "Head of X" instead of a rank word like "Director" that tells you neither. Because of this, the title on this posting may look different from what you'd expect based on the scope and seniority of the role, and from how similar roles are typically titled elsewhere. If you have questions about how this role compares to your current title or level, your recruiter can help translate.

Gusto has physical office spaces in Denver, San Francisco, and New York City. Employees who are based in those locations will be expected to work from the office on designated days approximately 2-3 days per week (or more depending on role). The same office expectations apply to all Symmetry roles, Gusto's subsidiary, whose physical office is in Scottsdale.

Note: The San Francisco office expectations encompass both the San Francisco and San Jose metro areas.

When approved to work from a location other than a Gusto office, a secure, reliable, and consistent internet connection is required. This includes non-office days for hybrid employees.

Reliable, consistent presence: We expect regular and predictable attendance, whether you're working in-office, hybrid, or fully remote, so that you stay closely connected to your team, customers, and stakeholders in real time and ensure colleagues and customers receive the timely support and responsiveness they deserve.

Our customers come from all walks of life and so do we. We hire great people from a wide variety of backgrounds, not just because it's the right thing to do, but because it makes our company stronger. If you share our values and our enthusiasm for small businesses, you will find a home at Gusto.

Gusto is proud to be an equal opportunity employer. We do not discriminate in hiring or any employment decision based on race, color, religion, national origin, age, sex (including pregnancy, childbirth, or related medical conditions), marital status, ancestry, physical or mental disability, genetic information, veteran status, gender identity or expression, sexual orientation, or other applicable legally protected characteristic. Gusto considers qualified applicants with criminal histories, consistent with applicable federal, state and local law. Gusto is also committed to providing reasonable accommodations for qualified individuals with disabilities and disabled veterans in our job application procedures. We want to see our candidates perform to the best of their ability. If you require a medical or religious accommodation at any time throughout your candidate journey, please fill out this form and a member of our team will get in touch with you.

Gusto takes security and protection of your personal information very seriously. Please review our Fraudulent Activity Disclaimer .

Personal information collected and processed as part of your Gusto application will be subject to Gusto's Applicant Privacy Notice .

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Requirements found

Compliance Word

What this posting asks for

Level: Senior — The posting asks for 10+ years of experience.

Main responsibilities

Design, build, and test the financial data systems that record every dollar Gusto moves — the ledger and subledger that serve as the system of record, the tr…
Build reconciliation at Gusto's scale: prove that our internal records agree with bank, processor, and partner statements, and make the breaks that fall out …
Lead variance investigation end-to-end — the tooling, instrumentation, and runbooks that turn "the numbers don't tie" into a specific root cause, and then in…
Own the payment profile: how employers are set up to fund payroll and how employees and contractors are set up to be paid — the payment methods available and…
Help scale one of the largest Ruby/Rails and TypeScript/React applications in the world
Collaborate on complex and ambiguous problems with partnerships from Engineering, Product Management, Design, Data Science, Accounting, Finance, Compliance, …
Mentor and grow fellow engineers working to create holistic and scalable solutions

Competencies an interviewer will look for

Technical skill Core
In the posting: “As a Gusto Software Engineer at this level, you’ll be guiding projects end-to-end by driving large technical architectural decisions (focusing on scale and m…” · “If you’re interested in building elegant software with far-reaching effects in our modern economy, join us!” · “Help scale one of the largest Ruby/Rails and TypeScript/React applications in the world”
Show it by: Names the tools, languages or systems used and how; Explains a technical choice and its trade-off.
Teamwork and collaboration Core
In the posting: “With teams in Denver, San Francisco, and New York, we support more than 500,000 small businesses nationwide and are building a workplace that reflects the pe…” · “Collaborate on complex and ambiguous problems with partnerships from Engineering, Product Management, Design, Data Science, Accounting, Finance, Compliance, …” · “Successful applicants have at least 10+ years of experience and the enthusiasm for a collaborative, test-driven environment”
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: “As a Gusto Software Engineer at this level, you’ll be guiding projects end-to-end by driving large technical architectural decisions (focusing on scale and m…” · “Lead variance investigation end-to-end — the tooling, instrumentation, and runbooks that turn "the numbers don't tie" into a specific root cause, and then in…” · “Own the payment profile: how employers are set up to fund payroll and how employees and contractors are set up to be paid — the payment methods available and…”
Show it by: Takes a task from start to finish without being chased; Owns a mistake and what was changed after it.
Customer focus Core
In the posting: “We handle the hard stuff — payroll, health insurance, 401(k)s, and HR — so owners can focus on their craft and their customers.” · “Payment Profile is what makes a payment possible in the first place: the payment methods available to a customer, the bank accounts and connections behind th…” · “Reliable, consistent presence: We expect regular and predictable attendance, whether you're working in-office, hybrid, or fully remote, so that you stay clos…”
Show it by: Puts the customer's need in their own words; Shows a result for the customer, not only for the company.
Data and analysis Core
In the posting: “We’re hiring seasoned engineers to join our teams that work on the financial backbone of Gusto's money movement — the ledger, reconciliation, and reporting s…” · “Financial Data & Payment Profile (FDPP) sits inside Gusto's Payments organization, which moves money safely between partners, employers, employees, governmen…” · “Financial Data is the system of record for the money itself: the ledger and subledger behind every payment, the reconciliation that proves our books agree wi…”
Show it by: Uses a number to describe the situation or the result; Explains what the data showed and what was done with it.
Attention to detail and quality Core
In the posting: “Financial Data & Payment Profile (FDPP) sits inside Gusto's Payments organization, which moves money safely between partners, employers, employees, governmen…” · “Financial Data is the system of record for the money itself: the ledger and subledger behind every payment, the reconciliation that proves our books agree wi…” · “Design, build, and test the financial data systems that record every dollar Gusto moves — the ledger and subledger that serve as the system of record, the tr…”
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: “Financial Data & Payment Profile (FDPP) sits inside Gusto's Payments organization, which moves money safely between partners, employers, employees, governmen…” · “Financial Data is the system of record for the money itself: the ledger and subledger behind every payment, the reconciliation that proves our books agree wi…” · “Design, build, and test the financial data systems that record every dollar Gusto moves — the ledger and subledger that serve as the system of record, the tr…”
Show it by: Shows how they aligned people with different goals; Explains how they handled a 'no' from someone senior.
Problem solving Core
In the posting: “Financial Data is the system of record for the money itself: the ledger and subledger behind every payment, the reconciliation that proves our books agree wi…” · “Lead variance investigation end-to-end — the tooling, instrumentation, and runbooks that turn "the numbers don't tie" into a specific root cause, and then in…”
Show it by: Describes a real problem, the options considered and the one chosen; Shows how the cause was found, not just the fix.
Adaptability and learning Core
In the posting: “Collaborate on complex and ambiguous problems with partnerships from Engineering, Product Management, Design, Data Science, Accounting, Finance, Compliance, …” · “An aptitude and interest in bringing clarity and simplicity to complex and ambiguous problems”
Show it by: Describes learning something new quickly and using it; Shows a change of plan and how they adjusted.
Communication Supporting
In the posting: “Ability to communicate technical complexity and help facilitate informed tradeoffs”
Show it by: Adapts the message to the listener; Gives an example of explaining something clearly in writing or speech.
Leadership and mentoring Supporting
In the posting: “Mentor and grow fellow engineers working to create holistic and scalable solutions”
Show it by: Describes setting direction or a standard others followed; Names someone they coached and what changed for them.
Planning and organisation Supporting
In the posting: “Financial Data & Payment Profile (FDPP) sits inside Gusto's Payments organization, which moves money safely between partners, employers, employees, governmen…”
Show it by: Shows how priorities were set when everything was urgent; Mentions deadlines met and how.

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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
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
Describe a time you went out of your way to solve a customer's problem. From this posting
How have you used compliance in your work? Walk me through one real example. From this posting
Tell me about a problem you solved using word. 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.
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
Walk me through a feature you built from start to finish. What tools and languages did you use? 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
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?
Walk me through how you would check whether a report's numbers are right.