Senior Software Engineer II (Payments)

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.

Payments

We're seeking an experienced, impact-driven Senior Software Engineer II to join Instacart's Payments team—a business-critical pillar of our Platform. Processing over $100M every day, Payments operates at the intersection of high performance, regulatory complexity, and rapid innovation. We build reliable, accurate, and scalable systems that power every Instacart transaction.

As a technical leader in Payments, you’ll tackle some of Instacart’s most challenging and rewarding problems: optimizing payment costs, improving payment success rates, launching new payment methods, ensuring accounting precision, and architecting robust integrations with external partners. You’ll collaborate closely with various cross functional, external, and other engineering partners to deliver seamless and secure payment experiences for all users.

Our team values agility and thrives on change. We move fast to adapt to evolving business priorities and consistently deliver at a high bar. You’ll help shape the future of our payments platform, mentor talented engineers, and foster a culture centered on ownership, operational excellence, and continuous improvement.

If you're inspired by high-scale, high-impact work and want to lead in an environment that values strong design, collaboration, innovation, and clear communication, we’d love to chat.

About The Job

• Design, develop, and maintain robust, scalable, and highly available backend systems for payment processing.
• Implement payment-related APIs and services, ensuring security, reliability, and accuracy at every step of the payment lifecycle.
• Lead technical projects that span multiple teams, from initial design to execution and continuous improvement.
• Integrate with external payment processors, gateways, wallets, and financial partners while ensuring compliance with regulatory requirements.
• Optimize systems for cost, performance, observability, and operational efficiency.
• Collaborate with cross-functional partners across legal, product, data science, finance, operations, and more.
• Proactively drive platform improvements and initiatives that impact key business metrics.
• Mentor and support fellow engineers, establish best practices, and uphold high standards for code quality and architecture.

About You

• Bachelor’s degree in Computer Science, Computer Engineering, or similar.
• 5+ years of backend engineering experience in high-scale, distributed environments.
• Proficient in backend languages (e.g., Ruby, Go, Java).
• Experience with relational databases (PostgreSQL, MySQL, etc.), caching (Redis, Memcached), and distributed systems.
• Comfortable navigating complex business and technical domains, especially payments, invoicing, billing, or compliance-heavy environments.
• Strong communicator who can lead projects and drive alignment across stakeholders.
• High sense of ownership, capable of working independently, influencing team direction, and mentoring others.
• Strong background in operational excellence: monitoring, alerting, and incident response.
• Hands-on experience driving experimentation and A/B testing when launching new features, with a data-driven approach to measuring and iterating on outcomes.

Preferred Qualifications

• Expertise in payment infrastructure, payment authorization flows, and reconciliation.
• Experience launching payment methods, optimizing for payment success rates, or managing payment costs.
• Experience designing or operating workflows with Temporal or similar workflow orchestration technologies.
• Track record of driving measurable impact through technical innovation in payments or financial systems.
• Thrive in an AI-first engineering environment, leveraging AI-powered tools as part of your workflow and contributing to the ongoing evolution of best practices that boost team productivity

Instacart 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. Currently, we are only hiring in the following provinces: Ontario, Alberta, British Columbia, and Nova Scotia.

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 Canadian based candidates, the base pay ranges for a successful candidate are listed below.

CAN

$193,000—$214,000 CAD