Senior Software Engineer, Commerce Platform (Fullstack)

We're transforming the grocery industry At Instacart, we invite the world to share love through food because we believe everyone should have access to the food they love and more time to enjoy it together. Where others see a simple need for grocery delivery, we see exciting complexity and endless opportunity to serve the varied needs of our community. We work to deliver an essential service that customers rely on to get their groceries and household goods, while also offering safe and flexible earnings opportunities to Instacart Personal Shoppers. Instacart has become a lifeline for millions of people, and we’re building the team to help push our shopping cart forward. If you’re ready to do the best work of your life, come join our table. Instacart is a Flex First team There’s no one-size fits all approach to how we do our best work. Our employees have the flexibility to choose where they do their best work—whether it’s from home, an office, or your favorite coffee shop—while staying connected and building community through regular in-person events. Learn more about our flexible approach to where we work.Overview About the Team The Commerce Platform team helps every customer to effortlessly and securely pay for their transactions using their preferred payment methods and benefits. Joining this team is a unique opportunity to shape the next generation of Instacart's foundational platform, and contribute to our exponential growth. Join us in ensuring the seamless processing of millions of orders, credit card transactions, and invoice calculations every day. About the Job You will be part of a small and dynamic group that encourages ownership, fosters collaboration, and values continuous improvement. You’ll work closely with Front-End engineers to set high standards for product and code quality within our web applications. With our server-driven client/server architecture, you will have the opportunity to engage in full-stack development. Your contributions will span the entire development process, from problem understanding to delivering innovative solutions. Additionally, you will collaborate with product managers, designers, internal and external partners, and other teams to drive successful outcomes. Maintaining our engineering standards and promoting codebase consistency will be among your key responsibilities. By shipping high-quality, scalable, and robust solutions, you will help us shape the future of Instacart. Furthermore, you will have the freedom to suggest and lead organization-wide initiatives that drive innovation and excellence. About You Minimum Qualifications 6+ years of software development experience Solid experience in building web applications using HTML, CSS, Rails, and React.js (or comparable frameworks). Strong understanding of UX principles and a keen eye for usability issues in web applications. Proficiency with front-end testing frameworks such as Jest, Mocha, or Enzyme. Familiarity with Ruby on Rails framework and experience using Sorbet for strong-typing. Experience working with client-facing flexible APIs exposed via GraphQL. Knowledge of backend relational data stores like Postgres and Snowflake. Experience with caching and durable job dispatching using tools like Memcached and Redis. Proficiency in building rich monitoring and alerting infrastructure using tools like AWS CloudWatch, DataDog, Sentry, OpsGenie, and related services. Proactive and adaptable mindset, with the ability to research, propose, implement, and deploy new integrations. Preferred Qualifications In-depth understanding of various payment systems and methods used in eCommerce, including credit/debit cards, digital wallets, mobile payments, and alternative payment solutions. Familiarity with payment gateways and payment service providers (PSPs) is also valuable. Experience with order management systems (OMS) or eCommerce platforms that handle the end-to-end order lifecycle. Understanding of the overall eCommerce operations and processes involved in managing customer orders, from the point of placing an order to delivery. Expertise in invoicing and billing processes within an ecommerce environment. This includes being familiar with customer invoices, resolving discrepancies, and managing invoicing cycles. Familiarity with relevant invoicing regulations and tax requirements is beneficial. Experiment frameworks and data driven approach to development. Experience with cross-browser compatibility, accessibility, and building reusable components or front-end libraries. #LI-RemoteInstacart provides highly market-competitive compensation and benefits in each location where our employees work. This role is remote and the base pay range for a successful candidate is dependent on their permanent work location. Please review our Flex First remote work policy here. Offers may vary based on many factors, such as candidate experience and skills required for the role. Additionally, this role is eligible for a new hire equity grant as well as annual refresh grants. Please read more about our benefits offerings here. For US based candidates, the base pay ranges for a successful candidate are listed below.CA, NY, CT, NJ$195,000—$217,000 USDWA$187,000—$208,000 USDOR, DE, ME, MA, MD, NH, RI, VT, DC, PA, VA, CO, TX, IL, HI$180,000—$200,000 USDAll other states$162,000—$180,000 USD

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