Senior Software Engineer, Commerce Platform

Back to jobs New Senior Software Engineer, Commerce Platform South San Francisco, California, USA Apply The Commerce Platform team builds the commercial engine that makes that network a real business. We create the tools and integrations partners use to run their business with Zipline, the marketplace logic that connects demand to supply, and the financial infrastructure that ensures every transaction is correct and every dollar is traceable. This platform needs to scale across metros, countries, and verticals (restaurants, retail, and healthcare) handling millions of orders per day. What you will own You will own software across the full commercial stack, including: Merchant Portal

• the web portal partners use to manage their Zipline business day to day Partner integrations
• Point of Sale connectors, API integrations, and data feeds that connect merchant systems to the Zipline platform Marketplace Platform
• internal tooling that controls how demand is prioritized, priced, and distributed across the network Billing Engine
• the financial backbone that manages payments, commissions, settlements, and revenue flows across the marketplace Fulfillment apps
• mobile and cloud applications for picking and loading execution at partner locations Customer support tooling
• AI-powered support systems integrated with order, delivery, and billing infrastructure Serviceability & coverage tools
• internal platforms for understanding and modeling where Zipline can serve customers Hard Problems, Real Ownership Most software roles optimize a single surface.

The Commerce Platform spans consumer product, marketplace logic, partner tooling, fulfillment, and financial infrastructure. You will work on problems like: How do we give merchant partners real-time operational visibility, self-serve onboarding, and financial clarity without fragmenting the system across verticals? How do we design marketplace policy controls that let operators safely change pricing, capacity allocation, and prioritization, with experimentation before production? How do we build a billing engine that traces every dollar from customer charge through partner payout across promotions, refunds, revenue shares, and multi-jurisdiction tax? How do we build AI-powered customer support that can actually take action, issuing refunds, applying credits, explaining delays using live mission data, rather than just surfacing information? How do we keep unit economics visible and margin protected as volume scales across partners, verticals, and geographies? These systems are live and consequential. The work you do on them directly shapes the customer experience, partner success, and commercial performance of the network. How we work This team operates with high ownership, high trust, and a high technical bar. Engineers are expected to identify important problems, form a clear view of how the system should work, and drive solutions from concept through production. We also expect engineers to use AI tooling effectively as a force multiplier across exploration, implementation, and debugging, while maintaining strong engineering rigor, judgment, and accountability. What you will bring You are likely a strong fit if you: have a track record of building and shipping production software across the full stack, from consumer-facing interfaces to backend services and data pipelines can hold both product instinct and systems judgment at the same time

• you care about the user experience and the architecture that makes it reliable at scale understand marketplace dynamics: ordering flows, pricing logic, financial correctness, and the tradeoffs between them can simplify complexity, define durable abstractions, and improve the architecture around you thrive working across product boundaries (e.

g. consumer, partner, internal tooling, and financial systems) without losing coherence want to shape architecture and product direction, not just implement scoped features Our current stack includes Go, Python, React, gRPC, Kafka, PostgreSQL, AWS, Bazel, Grafana, and Honeycomb, but we value engineers who can learn new tools quickly and focus on solving the right problems. We lean heavily into AI-assisted and agentic engineering workflows, and we're excited to work with engineers who use modern AI tooling to amplify their productivity while maintaining high standards for system design and code quality. What Else You Need to Know The starting cash range for this role is $180,000

• $270,000.

Please note that this is a target, starting cash range for a candidate who meets the minimum qualifications for this role. The final cash pay for this role will depend on a variety of factors, including a specific candidate's experience, qualifications, skills, working location, and projected impact. The total compensation package for this role may also include: equity compensation; overtime pay; discretionary annual or performance bonuses; sales incentives; benefits such as medical, dental and vision insurance; paid time off; and more. Zipline is an equal opportunity employer and prohibits discrimination and harassment of any type without regard to race, color, ancestry, national origin, religion or religious creed, mental or physical disability, medical condition, genetic information, sex (including pregnancy, childbirth, and related medical conditions), sexual orientation, gender identity, gender expression, age, marital status, military or veteran status, citizenship, or other characteristics protected by state, federal or local law or our other policies. We value diversity at Zipline and welcome applications from those who are traditionally underrepresented in tech. If you like the sound of this position but are not sure if you are the perfect fit, please apply! Apply for this job

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