Software Engineer, Payments at WhatNot

Kraków, Lesser Poland Voivodeship, Poland

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Not SpecifiedCompensation

Mid-level (3 to 4 years), Senior (5 to 8 years)Experience Level

Full TimeJob Type

UnknownVisa

E-commerce, Fintech, MarketplaceIndustries

Requirements

3-5 or more years of software development experience building scalable systems that can handle millions of users
Comfortable with multiple programming languages (primarily Python, Elixir, JavaScript - knowledge not required)
Excellent product instincts, prioritizing users over the best technical solution
Ability to mentor others and prioritize building inclusive, supportive teams
Strong ownership instincts; can own projects from inception to production and beyond
Known for shipping products and features lightning-fast
Excellent problem solver who doesn’t need to be told exactly what to do
Open to doing frontend work when required
Ability to pick up on new technologies very quickly
Proven track record of delivering features
Must be within commuting distance of the Krakow, Poland hub
Embody low ego, growth mindset, and high-impact drive (nice to have: experience with payment systems, infrastructure, experiences and international commerce; startup experience at a high-growth company)

Responsibilities

Build reliable, scalable infrastructure for payments processing
Develop innovative ways for users to transact
Power every order and collect payments across local and international methods
Manage returns, refunds, and seller payouts at scale
Enable rapid growth of buyers and sellers on the platform
Make good trade-offs and exercise good judgment with significant individual responsibility and freedoms
Own projects end-to-end, including shipping to production and beyond
Mentor others and contribute to inclusive, supportive teams

Skills

Key technologies and capabilities for this role

PaymentsScalable InfrastructurePayment ProcessingRefundsPayoutsE-commerceGoJavaAWSDistributed Systems

Questions & Answers

Common questions about this position

Is this position remote or does it require office presence?

The role offers flexibility to work from home or from one of our global office hubs, but team members are required to be within commuting distance of our Krakow, Poland hub, and we value in-person time for planning, problem-solving, and connection.

What experience and skills are required for this Software Engineer role?

Candidates need 3-5 or more years of software development experience building scalable systems that can handle millions of users, comfort with multiple programming languages (primarily Python, Elixir, JavaScript), excellent product instincts focused on users, ability to mentor others and build inclusive teams, and strong project ownership from inception to production.

What is the salary or compensation for this position?

This information is not specified in the job description.

What kind of culture does Whatnot have, and who thrives there?

Whatnot values a low ego, growth mindset, and high-impact drive. The team emphasizes individual responsibility, freedoms, good judgment, and building inclusive, supportive teams.

What makes a strong candidate for this Software Engineer position?

Strong candidates have 3-5+ years building scalable systems for millions of users, comfort with multiple languages like Python, Elixir, and JavaScript, user-focused product instincts, mentoring ability, strong ownership, and a proven track record of shipping products quickly.

WhatNot

Online marketplace for authentic collectibles

About WhatNot

Whatnot.com operates as an online marketplace dedicated to collectibles, particularly focusing on items like Funkos and FiGPiNs. The platform ensures that every collectible listed is 100% authentic through a rigorous verification process that includes hand authentication, providing trust and security for both buyers and sellers. It caters to collectors and enthusiasts who seek a reliable space to buy and sell rare and exclusive items from popular franchises such as Marvel Comics and Star Wars. Whatnot.com distinguishes itself from competitors by charging low fees on sales and offering seller protection, which guarantees prompt and secure payments. The company's goal is to create a trusted environment for the growing community of collectible enthusiasts, facilitating safe and easy transactions for unique items.

Marina del Rey, CaliforniaHeadquarters

2019Year Founded

$728.7MTotal Funding

SERIES_ECompany Stage

Consumer Software, Consumer GoodsIndustries

501-1,000Employees

Benefits

Competitive base salary and stock options

Unlimited Vacation Policy and No Meeting Holidays

Health Insurance options including Medical, Dental, Vision, Life, Short term disability & Long term Disability

Work From Home Support

Up to $500 monthly to spend within Whatnot App

Care benefits

Risks

Increased competition from TikTok Shop may impact Whatnot's market share.

The collectibles market's volatility could affect Whatnot's sales and inventory.

Expansion into new categories may dilute Whatnot's specialized brand identity.

Differentiation

Whatnot offers a unique marketplace for 100% authenticated collectible items.

The platform integrates live shopping with entertainment, enhancing user engagement.

Whatnot's partnerships with major franchises like Marvel boost its market appeal.

Upsides

Whatnot's $265M funding round supports expansion and new product categories.

The platform's collaboration with PSA enhances trust through integrated authentication services.

Rising interest in live shopping among younger demographics drives Whatnot's growth.

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