Software Engineer Jobs at Whatnot with Visa Sponsorship
Software Engineer jobs at Whatnot involve building the real-time infrastructure behind a fast-growing live commerce platform, working across backend systems, mobile, and marketplace tooling. Whatnot has an established track record of sponsoring work visas for Software Engineers, supporting candidates through the full sponsorship process from initial offer through filing.
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Get Access To All JobsINTRODUCTION
🚀 Join the Future of Commerce with Whatnot! Whatnot is the largest live shopping platform in North America and Europe to buy, sell, and discover the things you love. We’re re-defining e-commerce by blending community, shopping, and entertainment into a community just for you. As a remote co-located team, we’re inspired by innovation and anchored in our values. With hubs in the US, UK, Germany, Ireland, and Poland, we’re building the future of online marketplaces – together. From fashion, beauty, and electronics to collectibles like trading cards, comic books, and even live plants, our live auctions have something for everyone. And we’re just getting started! As one of the fastest growing marketplaces, we’re looking for bold, forward-thinking problem solvers across all functional areas. Check out the latest Whatnot updates on our news and engineering blogs and join us as we enable anyone to turn their passion into a business, and bring people together through commerce.
ROLE
The Fraud Experience team builds intelligent, real-time systems that safeguard Whatnot’s marketplace from malicious activity. We design, develop, and deploy end-to-end, ML-driven systems that proactively identify and mitigate fraud — blending real-time detection with transparent, user-centered enforcement.
- Lead the full architecture of fraud detection, prevention, and intervention systems — spanning machine learning, backend, and client-side components.
- Build intelligent user graphs to model behavioral patterns, detect collusion networks, and uncover account connectivity at scale.
- Design, train, and deploy both traditional ML and LLM-powered models to detect fraudulent activity across users, payments, and marketplace interactions.
- Develop scalable data pipelines and real-time inference systems capable of supporting high-volume, low-latency ML workloads.
- Create human-in-the-loop systems that continuously refine detection accuracy and adapt to evolving adversarial tactics.
- Perform deep behavioral and adversarial data analysis to surface emerging fraud trends and drive continuous system improvement.
- Stay ahead of the curve by translating new insights into adaptive, production-ready systems that evolve as fast as our adversaries.
We offer flexibility to work from home or from one of our global office hubs, and we value in-person time for planning, problem-solving, and connection. Team members in this role must live within commuting distance of our Los Angeles, New York, San Francisco or Seattle hub.
YOU
Curious about who thrives at Whatnot? We’ve found that embodying a low ego, growth mindset, and high-impact drive goes a long way here. As our next Software Engineer in Fraud team, you should bring 4+ years of software development experience in high-growth environments, along with a strong bias toward action and impact.
What You’ll Bring
- Bachelor’s degree in Computer Science, Statistics, Applied Mathematics, Economics, or a related technical field.
- 4+ years of software engineering experience building systems for consumer-scale traffic and reliability.
- 1+ years writing production-grade Python code and working with ML libraries (e.g. PyTorch, LightGBM).
- 1+ years of experience in machine learning or fraud prevention domains.
- Deep business intuition and a data-driven mindset — you think critically about how abuse prevention systems affect growth and user experience.
- Fluency with data tooling, including data warehouses (e.g. Snowflake) and transformation frameworks (e.g. dbt, Dagster).
- Strong communication skills and the ability to lead initiatives across product areas, collaborating closely with leadership, data science, and product teams.
- Experience working in a remote-first environment and producing well-tested, reproducible work.
What Sets You Apart
- You’re impact-obsessed — you focus relentlessly on delivering value for users and simplify wherever possible, moving fast without sacrificing quality.
- You’re entrepreneurial and relentless — you prioritize effectively, tackle hard problems with curiosity, and go above and beyond to make things happen.
- You have a growth mindset and love digging into ambiguous user problems, crafting data-driven solutions, and shipping improvements quickly.
- Hands-on machine learning or data science experience in production environments.
COMPENSATION
For Full-Time (Salary) US based applicants: $170,000/year to $230,000/year + benefits + equity. The salary range may be inclusive of several levels that would be applicable to the position. Final salary will be based on a number of factors including, level, relevant prior experience, skills, and expertise. This range is only inclusive of base salary, not benefits (more details below) or equity.
BENEFITS
- Generous Holiday and Time off Policy
- Health Insurance options including Medical, Dental, Vision
- Work From Home Support + Home office setup allowance + Monthly allowance for cell phone and internet
- Care benefits + Monthly allowance for wellness + Annual allowance towards Childcare + Lifetime benefit for family planning, such as adoption or fertility expenses
- Retirement; 401k offering for Traditional and Roth accounts in the US (employer match up to 4% of base salary) and Pension plans internationally
- Monthly allowance to dogfood the app + All Whatnauts are expected to develop a deep understanding of our product. We're passionate about building the best user experience, and all employees are expected to use Whatnot as both a buyer and a seller as part of their job (our dogfooding budget makes this fun and easy!).
- Parental Leave + 16 weeks of paid parental leave + one month gradual return to work *company leave allowances run concurrently with country leave requirements which take precedence.
LOCATION
Team members in this role must live within commuting distance of our Los Angeles, New York, San Francisco or Seattle hub.
đź’› EOE
Whatnot is proud to be an Equal Opportunity Employer. We value diversity, and we do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, parental status, disability status, or any other status protected by local law. We believe that our work is better and our company culture is improved when we encourage, support, and respect the different skills and experiences represented within our workforce.
Compensation Range: $162K - $260K
INTRODUCTION
🚀 Join the Future of Commerce with Whatnot! Whatnot is the largest live shopping platform in North America and Europe to buy, sell, and discover the things you love. We’re re-defining e-commerce by blending community, shopping, and entertainment into a community just for you. As a remote co-located team, we’re inspired by innovation and anchored in our values. With hubs in the US, UK, Germany, Ireland, and Poland, we’re building the future of online marketplaces – together. From fashion, beauty, and electronics to collectibles like trading cards, comic books, and even live plants, our live auctions have something for everyone. And we’re just getting started! As one of the fastest growing marketplaces, we’re looking for bold, forward-thinking problem solvers across all functional areas. Check out the latest Whatnot updates on our news and engineering blogs and join us as we enable anyone to turn their passion into a business, and bring people together through commerce.
ROLE
The Fraud Experience team builds intelligent, real-time systems that safeguard Whatnot’s marketplace from malicious activity. We design, develop, and deploy end-to-end, ML-driven systems that proactively identify and mitigate fraud — blending real-time detection with transparent, user-centered enforcement.
- Lead the full architecture of fraud detection, prevention, and intervention systems — spanning machine learning, backend, and client-side components.
- Build intelligent user graphs to model behavioral patterns, detect collusion networks, and uncover account connectivity at scale.
- Design, train, and deploy both traditional ML and LLM-powered models to detect fraudulent activity across users, payments, and marketplace interactions.
- Develop scalable data pipelines and real-time inference systems capable of supporting high-volume, low-latency ML workloads.
- Create human-in-the-loop systems that continuously refine detection accuracy and adapt to evolving adversarial tactics.
- Perform deep behavioral and adversarial data analysis to surface emerging fraud trends and drive continuous system improvement.
- Stay ahead of the curve by translating new insights into adaptive, production-ready systems that evolve as fast as our adversaries.
We offer flexibility to work from home or from one of our global office hubs, and we value in-person time for planning, problem-solving, and connection. Team members in this role must live within commuting distance of our Los Angeles, New York, San Francisco or Seattle hub.
YOU
Curious about who thrives at Whatnot? We’ve found that embodying a low ego, growth mindset, and high-impact drive goes a long way here. As our next Software Engineer in Fraud team, you should bring 4+ years of software development experience in high-growth environments, along with a strong bias toward action and impact.
What You’ll Bring
- Bachelor’s degree in Computer Science, Statistics, Applied Mathematics, Economics, or a related technical field.
- 4+ years of software engineering experience building systems for consumer-scale traffic and reliability.
- 1+ years writing production-grade Python code and working with ML libraries (e.g. PyTorch, LightGBM).
- 1+ years of experience in machine learning or fraud prevention domains.
- Deep business intuition and a data-driven mindset — you think critically about how abuse prevention systems affect growth and user experience.
- Fluency with data tooling, including data warehouses (e.g. Snowflake) and transformation frameworks (e.g. dbt, Dagster).
- Strong communication skills and the ability to lead initiatives across product areas, collaborating closely with leadership, data science, and product teams.
- Experience working in a remote-first environment and producing well-tested, reproducible work.
What Sets You Apart
- You’re impact-obsessed — you focus relentlessly on delivering value for users and simplify wherever possible, moving fast without sacrificing quality.
- You’re entrepreneurial and relentless — you prioritize effectively, tackle hard problems with curiosity, and go above and beyond to make things happen.
- You have a growth mindset and love digging into ambiguous user problems, crafting data-driven solutions, and shipping improvements quickly.
- Hands-on machine learning or data science experience in production environments.
COMPENSATION
For Full-Time (Salary) US based applicants: $170,000/year to $230,000/year + benefits + equity. The salary range may be inclusive of several levels that would be applicable to the position. Final salary will be based on a number of factors including, level, relevant prior experience, skills, and expertise. This range is only inclusive of base salary, not benefits (more details below) or equity.
BENEFITS
- Generous Holiday and Time off Policy
- Health Insurance options including Medical, Dental, Vision
- Work From Home Support + Home office setup allowance + Monthly allowance for cell phone and internet
- Care benefits + Monthly allowance for wellness + Annual allowance towards Childcare + Lifetime benefit for family planning, such as adoption or fertility expenses
- Retirement; 401k offering for Traditional and Roth accounts in the US (employer match up to 4% of base salary) and Pension plans internationally
- Monthly allowance to dogfood the app + All Whatnauts are expected to develop a deep understanding of our product. We're passionate about building the best user experience, and all employees are expected to use Whatnot as both a buyer and a seller as part of their job (our dogfooding budget makes this fun and easy!).
- Parental Leave + 16 weeks of paid parental leave + one month gradual return to work *company leave allowances run concurrently with country leave requirements which take precedence.
LOCATION
Team members in this role must live within commuting distance of our Los Angeles, New York, San Francisco or Seattle hub.
đź’› EOE
Whatnot is proud to be an Equal Opportunity Employer. We value diversity, and we do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, parental status, disability status, or any other status protected by local law. We believe that our work is better and our company culture is improved when we encourage, support, and respect the different skills and experiences represented within our workforce.
Compensation Range: $162K - $260K
See all 42+ Software Engineer Jobs at Whatnot
Sign up for free to unlock all listings, filter by visa type, and get alerts for new Software Engineer Jobs at Whatnot.
Get Access To All JobsTips for Finding Software Engineer Jobs at Whatnot
Align your portfolio to live commerce challenges
Whatnot's engineering work centers on real-time bidding, auction infrastructure, and high-throughput marketplace systems. Demonstrating hands-on experience with low-latency backend services or mobile commerce features signals direct relevance to their open Software Engineer roles.
Confirm your visa type before applying
Whatnot sponsors multiple visa categories, so clarifying upfront whether your situation is H-1B, E-3, TN, or F-1 OPT lets recruiters route your application correctly and avoids delays when the team initiates your sponsorship paperwork.
Request E-Verify enrollment confirmation early
For F-1 OPT holders, your employer must be enrolled in E-Verify before STEM OPT extension is approved by USCIS. Confirm Whatnot's enrollment status at the offer stage, not after you've accepted, to protect your authorization timeline.
Build the specialty occupation case for your role
USCIS scrutinizes whether a Software Engineer role genuinely requires a theoretical and practical application of a specific technical degree. Document the specific architecture decisions, systems design work, or distributed systems knowledge your Whatnot role will demand before your employer files the H-1B petition.
Use Migrate Mate to surface active Whatnot openings
Software Engineer roles at Whatnot open and close quickly. Use Migrate Mate to filter Whatnot's active listings by visa type so you apply to roles aligned with your sponsorship needs before requisitions fill.
Time your H-1B filing around the retail calendar
Retail-adjacent companies like Whatnot often accelerate hiring ahead of peak commerce seasons. Filing an H-1B petition in April for an October 1 start date means aligning your offer timeline to the cap season, giving both you and your employer enough runway before the busy period.
Frequently Asked Questions
Does Whatnot sponsor H-1B visas for Software Engineers?
Yes, Whatnot sponsors H-1B visas for Software Engineer roles. The company has an active sponsorship history across engineering functions, supporting both initial H-1B cap filings and transfers for candidates already holding H-1B status. If you're applying as a cap-subject candidate, your petition would need to be filed in April for an October 1 start date, so offer timing matters.
How do I apply for Software Engineer jobs at Whatnot?
You can browse and apply for Software Engineer roles at Whatnot directly through Migrate Mate, which filters open positions by visa sponsorship type so you can identify roles that match your situation before applying. Whatnot's engineering hiring typically involves an initial recruiter screen, a technical assessment, and multiple rounds of system design and coding interviews focused on real-time and marketplace systems.
Which visa types does Whatnot sponsor for Software Engineer roles?
Whatnot sponsors a range of visa types for Software Engineers, including H-1B, E-3 visa for Australian citizens, TN visa for Canadian and Mexican nationals, F-1 OPT and CPT for students, J-1 visa, and employment-based Green Cards through the EB-2 and EB-3 categories. The right category depends on your nationality, degree, and current immigration status.
What qualifications does Whatnot expect from Software Engineer candidates?
Whatnot's Software Engineer roles generally require a bachelor's degree or higher in computer science, software engineering, or a closely related field. For H-1B purposes, the degree must align specifically with the role's technical requirements. Practically, Whatnot's engineering interviews emphasize distributed systems, real-time infrastructure, and mobile or backend development, reflecting the architecture of their live commerce platform.
How do I plan my timeline if Whatnot is sponsoring my H-1B?
If you're a new H-1B cap-subject applicant, USCIS accepts petitions starting April 1 each year for an October 1 start date. Whatnot's recruiter and legal team typically need several weeks to prepare the Labor Condition Application through DOL and assemble your I-129 petition. Starting conversations with recruiters by January or February gives you the most runway to meet that April filing window.