Senior Software Engineer, Fulfillment

Wwshemi; Canada; Remote; CAD 168,000 - 178,000; Full time

Job summary

Instacart is seeking a backend engineer with demonstrated success building highly reliable, performant and scalable software to shape the platform powering real-world, real-time processes. The Logistics Platform team owns the execution layer of Instacart’s fulfillment system across the globe, including routing, task allocation, dispatch, and shopper pay.

A year from now, shoppers get efficient and fulfilling work, retailers and consumer brands improve their value proposition, and customers

Qualifications

• 5+ years of backend development experience.
• Fluency in Ruby, Python or Go (Ruby not required).
• Strong knowledge of REST/RPC, databases and distributed design.
• Experience with asynchronous event-driven systems in production.
• Excellent communication in cross-functional, collaborative environments.
• Degree in Computer Science, Software Engineering, or related field, or equivalent.

Responsibilities

• Build backend applications for routing, task allocation, fulfillment tracking and shopper compensation.
• Lead technical design for high-impact projects across distributed systems.
• Ensure reliability and observability of Tier-0 systems with clear ownership.
• Collaborate with product, compliance and engineering stakeholders on platform best practices.
• Mentor engineers toward higher code quality and testing standards.

Skills

Backend development

API design (REST/RPC)

Distributed systems

Event-driven systems

Communication

Education

Bachelor's or Master's in CS/SE

Job description

Instacart Remote - Canada - (ON, AB, BC, or NS Only Posted 2026-10-26

This listing's locations Remote - Canada - (ON, AB, BC, or NS Only

Workplace Remote

Compensation CAD 168000-177500 (period not stated)

Software Engineering

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 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. instacart.careers/flex-first

Overview

Instacart is seeking a backend engineer with demonstrated success building highly reliable, performant and scalable software to shape the platform powering real-world, real-time processes. The Logistics Platform team owns the execution layer of Instacart’s fulfillment system across the globe, including batching, routing, dispatch, and shopper pay. This role builds the platform that routes orders, allocates fulfillment execution tasks to shoppers, tracks fulfillment status and determines compensation. A year from now, shoppers get efficient and fulfilling work, retailers and consumer brands improve their value proposition, and customers receive their orders on time and to their satisfaction.

About the Job

• Backend applications and systems for routing, task allocation, fulfillment tracking and shopper compensation are architected, built and maintained
• Technical design for high-impact projects and initiatives is led, with logistics problems across the consumer marketplace and enterprise space solved through shipped features
• Tier-0 systems are reliable and observable, with clear ownership
• Platform best practices are driven through alignment with product, compliance and engineering stakeholders
• AI-assisted tooling and workflows raise day-to-day productivity for you and the team, and engineers are mentored toward a higher bar for code quality, testing, and operational practices

About You

Minimum Qualifications

• 5+ years of backend development experience
• Fluency in at least one backend language (we use Ruby, Python and Go; Ruby experience not required)
• Strong working knowledge of services/API design (REST/RPC), databases, and system design patterns and principles for distributed, scalable systems
• Experience building and operating asynchronous, event-driven systems in production
• Excellent communication skills with experience working in complex cross-functional and highly collaborative environments
• Bachelors or Masters degree in Computer Science, Software Engineering, or a related field, or equivalent practical experience

Preferred Qualifications

• Experience building software for fulfillment, logistics, or e-commerce
• Experience with workflow orchestration or state machines
• Regular use of AI coding tools such as Claude Code, Codex, etc
• Experience building systems subject to regulatory or financial compliance

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 instacart.careers/flex-first . 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 instacart.careers .

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