Senior Software Engineer in Test

Zip Co Limited; United States; Remote; USD 146,000 - 157,000; Full time

Benefits offered by this job

Unlimited PTO

Generous parental leave

401k match

Learning & wellness stipend

Office in Union Square

Job summary

Zip Co Limited is seeking an experienced quality engineering leader to own verification and validation for complex, production-grade systems. You will design robust test strategies, drive root cause analysis, and build scalable automation across API, integration, and UI testing in a fast-paced, AI-forward environment.

Collaborating closely with engineers, product managers, and stakeholders, you’ll ensure quality is built in from the start and continuously improved as the V&R organization

Qualifications

• 8+ years in quality engineering, QA automation, or SDET roles with a track record of owning quality for complex systems.
• Experience with CI/CD integration and test pipelines, mocking and test data management.
• Proven ability to design test strategies, drive root cause analysis, and prevent defects.

Responsibilities

• Own verification and validation across design, production, and release.
• Design comprehensive test strategies with edge cases and real-world scenarios.
• Build and maintain scalable automation across API, integration, and UI testing.
• Lead root cause analysis and contribute to prevention strategies for defects.
• Mentor teammates and elevate quality standards across the team.

Skills

Quality engineering leadership

SDET / QA automation

Edge-case testing

CI/CD integration

Test automation frameworks

AI-assisted testing tools

Performance testing

Mentoring engineers

Tools

CI/CD tooling

Automation frameworks

Performance testing tools

Job description

• Own end-to-end quality verification and validation for complex systems, from design through production.
• Help shape how verification and validation standards evolve as our engineering model matures.
• Remote-first opportunity for US-based employees, with the option to work in person from our Manhattan office.

Start your adventure with Zip

Join Zip's Engineering team and put your name to solving fascinating quality challenges at scale in an agile, AI-forward development environment. If you bring a strong quality mindset, deep technical expertise, and a relentless curiosity to uncover edge cases and hidden defects, you'll be a great fit with the squads responsible for building cloud-native software applications that serve millions of customers and process billions of dollars in payments.

In this role, you will partner closely with engineers, design, product managers, and stakeholders to ensure quality is built in, not tested in. Your ability to design comprehensive test strategies, drive root cause analysis, and bring disciplined verification and validation to every release will be critical as Zip's verification & validation organization continues to take shape.

Interesting problems you'll get to solve

• Apply verification (confirming a system is built right; correct against spec, architecture, and code quality) and validation (confirming it's the right system, that it actually solves the business problem) to everything you test.
• Design and execute comprehensive test strategies with a strong focus on edge cases, failure modes, and real-world scenarios.
• Build and maintain robust, scalable automation frameworks across backend (API, integration testing) and frontend (UI, end-to-end testing).
• Identify gaps in test coverage and system behavior
• Drive root cause analysis and contribute to prevention strategies for defects and incidents.
• Leverage AI-assisted tools throughout the testing lifecycle to accelerate test design, strengthen debugging, and speed up technical problem-solving.
• Apply the same verification and validation rigor to AI- and agent-produced work as to human-written code, as engineering workflows continue to evolve
• Explore practical applications of emerging AI capabilities that improve quality engineering workflows, automate repetitive testing work, and strengthen release confidence.
• Continuously improve test efficiency, reliability, and execution speed.
• Mentor team members and elevate overall quality standards across the team.

What you'll bring to the team

• 8+ years of experience in quality engineering, QA automation, or SDET roles, with a proven track record of owning quality for complex, production systems.
• Strong ability to think critically and identify edge cases, failure scenarios, and subtle bugs.
• Deep understanding of testing strategies (unit, integration, E2E, contract, regression).
• Proven experience owning quality for complex production systems.
• Experience with CI/CD integration and test pipelines.
• Familiarity with mocking, stubbing, and test data management.
• Strong debugging and problem-solving skills, with the ability to understand system architecture and identify risk areas.
• A proactive mindset with a focus on prevention over detection.
• Proven experience leveraging AI-assisted development tools across testing, debugging, and technical problem-solving to improve software quality, team productivity, and delivery speed.
• Ability to evaluate and apply emerging AI capabilities to engineering workflows, using sound judgment to ensure quality, security, and maintainability.
• Strong drive to learn, adapt, and grow in a fast-paced environment, with the comfort to operate in ambiguity as the Verification & Release model continues to take shape.
• Takes ownership and accountability for outcomes, and is comfortable challenging assumptions and advocating for quality.
• Experience mentoring other engineers and raising quality standards across a team.
• Experience with performance testing, BDD frameworks, or microservices architectures is a plus.
• Experience working in high-scale or fintech environments is a plus.
• Our values in your DNA: Customer First, Own It, Stronger Together and Change the Game.

What you’ll get in return

Zip is a place where you’ll get out what you put in. The newness of our sector means we need to move at pace and embrace change, and our promise to you when you join the team is that you’ll feel empowered and trusted to make big things happen quickly.

We want you to feel welcome and as though you have the support to be yourself, and care for yourself at work. Because it’s important to us that you make the most of the opportunities you’ll get to grow your skills and your career, and be surrounded by smart, friendly people and leaders that have your back.

We think these are just some of the best things about being a Zipster. We will also offer you:

• Incentive programs
• Unlimited PTO
• Generous paid parental leave
• Leading family support policies
• Company-sponsored 401k match
• Learning and wellness subscription stipend
• Beautiful Union Square office with a casual dress code
• Industry-leading, employer-sponsored insurance for you and your dependents, with several 100% Zip-covered choices available

Zip is committed to a straightforward and transparent pay structure. The actual base salary will be determined by various individualized factors, including job-related knowledge, skills, experience, location, internal equity, as well as other objective business considerations.

The annual basePay Rangefor this position is $146,000 - $157,000. This range reflects our US national compensation band (USN). Additional premium percentages may apply based on our tiered premium strategy.

Subject to those same considerations, the total compensation package for this position may also include other elements, including a bonus and/or commission awards, in addition to a full range of medical, financial, and/or other benefits.

*Please note that visa sponsorship is not available for this position.

If hired, employees will be in an 'at-will position' and the Company reserves the right to modify base salary (as well as any other discretionary payment or compensation or benefit program) at any time, including for reasons related to individual performance, Company or individual department/team performance, and market factors.

Be a part of a team that reflects the diversity of our customers

We pride ourselves on being a workplace that provides equal opportunities to people of all ages, cultural backgrounds, sexual orientations, gender identities, abilities, veteran status, and everything else that makes you unique.

Equally, we’re committed to ensuring our recruitment processes are accessible and inclusive. Please let us know If there are any adjustments that need to be made to ensure you have a fair and equitable experience.

And finally…get to know us

Zip Co Limited (ASX: ZIP) is a digital financial services company, offering innovative, people-centered products.

Operating in two core markets - Australia and New Zealand (ANZ) and the US, Zip offers access to point-of-sale credit and digital payment services, connecting millions of customers with its global network of tens of thousands of merchants. We’re proud to be a values-led business and our values - Customer First, Own it, Stronger Together and Change the Game - guide us in everything we do.

I acknowledge by clicking "Submit Application", that the information provided is true and correct. I also understand that any willful dishonesty may render for refusal of this application or immediate termination of employment. By providing your information, you acknowledge that you have read our Zip Applicant and Candidate Privacy Notice and authorize Zip to process your data subject to those terms. Zip participates in the federal government’s E-Verify program. #LI-Remote

Voluntary Self-Identification

For government reporting purposes, we ask candidates to respond to the below self-identification survey.Completion of the form is entirely voluntary. Whatever your decision, it will not be considered in the hiringprocess or thereafter. Any information that you do provide will be recorded and maintained in aconfidential file.

As set forth in Zip Co Limited’s Equal Employment Opportunity policy,we do not discriminate on the basis of any protected group status under any applicable law.

If you believe you belong to any of the categories of protected veterans listed below, please indicate by making the appropriate selection.As a government contractor subject to the Vietnam Era Veterans Readjustment Assistance Act (VEVRAA), we request this information in order to measurethe effectiveness of the outreach and positive recruitment efforts we undertake pursuant to VEVRAA. Classification of protected categoriesis as follows:

A "disabled veteran" is one of the following: a veteran of the U.S. military, ground, naval or air service who is entitled to compensation (or who but for the receipt of military retired pay would be entitled to compensation) under laws administered by the Secretary of Veterans Affairs; or a person who was discharged or released from active duty because of a service-connected disability.

A "recently separated veteran" means any veteran during the three-year period beginning on the date of such veteran's discharge or release from active duty in the U.S. military, ground, naval or air service.

An "active duty wartime or campaign badge veteran" means a veteran who served on active duty in the U.S. military, ground, naval or air service during a war, or in a campaign or expedition for which a campaign badge has been authorized under the laws administered by the Department of Defense.

An "Armed forces service medal veteran" means a veteran who, while serving on active duty in the U.S. military, ground, naval or air service, participated in a United States military operation for which an Armed Forces service medal was awarded pursuant to Executive Order 12985.

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Zip Co Inc uses AI technology to assist in our hiring process. We want to be transparent about how we may use this technology and your rights. We use Greenhouse Software’s Talent Matching feature to assist with reviewing applications for the skills and experience we have decided are important for this role.