Senior Software Engineer (Shopify)

About impact.com

impact.com is the world's leading commerce partnership marketing platform, transforming the way businesses grow by enabling them to discover, manage, and scale partnerships across the entire customer journey. From affiliates and influencers to content publishers, brand ambassadors, and customer advocates, impact.com empowers brands to drive trusted, performance‑based growth through authentic relationships. Its award‑winning products—Performance (affiliate), Creator (influencer), and Advocate (customer referral)—unify every type of partner into one integrated platform. As consumers increasingly rely on recommendations from people and communities they trust, impact.com helps brands show up where it matters most. Today, over 5,000 global brands, including Walmart, Uber, Shopify, Lenovo, L’Oréal, and Fanatics, rely on impact.com to power more than 225,000 partnerships that deliver measurable business results.

Your Role at Impact.com

We're looking for someone who knows Shopify well enough to challenge how we're using it. This isn't a role for someone who simply builds Shopify features. It's for an engineer who understands Shopify's platform deeply and wants to influence how one of the world's largest partnership platforms integrates with it.

Reporting to the Engineering Manager, E-commerce Platform Integrations, you'll own and evolve impact.com's Shopify integration—a critical platform connecting thousands of merchants directly to our ecosystem.

You’ll help shape our approach to Shopify Apps, Web Pixels, merchant onboarding, API integrations and platform architecture while ensuring our integration continues to evolve alongside Shopify itself.

If you're the kind of engineer who enjoys reading Shopify release notes, experimenting with new platform capabilities, debating architecture decisions and building systems that scale across thousands of merchants, we'd love to talk to you.

What You’ll Own

• Own the development and evolution of our Shopify integration, including Apps, Web Pixels and platform extensions. Build reliable, privacy‑compliant solutions that accurately capture conversions, refunds and customer events while adapting to Shopify's evolving platform capabilities.
• Design and improve the complete merchant installation experience. Build secure OAuth flows, manage credentials, automate onboarding and ensure merchants can install and activate Impact with minimal friction.
• Build and maintain the Ruby on Rails application that connects Shopify with Impact's APIs and workflow engine.
• Design resilient webhook consumers, manage high‑volume data pipelines and ensure reliable synchronisation between platforms.
• While Ruby on Rails is our primary backend technology, we support experienced Shopify engineers in developing deeper Rails expertise.
• Own the health of our Shopify integration in production.
• Proactively manage API version upgrades, monitor webhook delivery, troubleshoot merchant‑specific issues and ensure the platform remains performant, secure and resilient as Shopify evolves.

What You’ll Bring

• Built production Shopify Apps, integrations or platform extensions and understand the Shopify ecosystem beyond storefront development.
• Experience with technologies such as Shopify Apps, Checkout UI Extensions, Web Pixels, Shopify Functions, App Bridge, GraphQL Admin API, OAuth, Webhooks, Shopify Partner Dashboard.
• Built integrations between complex SaaS platforms and designed reliable event‑driven systems.
• Comfortable working with REST and GraphQL APIs, OAuth authentication, Webhooks, rate limiting, background processing, high‑volume event pipelines.
• Experience building and maintaining production backend services.
• Ruby on Rails experience preferred, but we are equally interested in experienced Shopify engineers who have worked with Node.js, Python, PHP or Java and are excited to work with Rails.
• Comfortable working with modern JavaScript or TypeScript and understand how browser‑based tracking technologies operate within Shopify's platform.

We’d Love To See Experience With

• Shopify Plus
• Marketing attribution
• Affiliate platforms
• Conversion tracking
• Analytics platforms
• Commerce integrations
• Workflow automation
• CI/CD pipelines
• Production monitoring and observability

Benefits and Perks

• Flexible Working: Our Responsible PTO policy allows you to take the time off you need to rest and recharge. We are committed to a positive work‑life balance and provide a flexible environment that allows you to be happy and fulfilled in both your career and your personal life.
• Health and Wellness: Your well‑being is a priority. We offer up to 12 fully covered therapy or coaching sessions per year, with additional dependent coverage, and a monthly gym reimbursement policy.
• A Stake in Our Growth: We offer Restricted Stock Units (RSUs) with a 3‑year vesting schedule, pending Board approval.
• Investing in Your Growth: We provide continuous learning support, including a free Coursera subscription and PXA courses.
• Parental Support: 26 weeks of fully paid primary caregiver leave and 13 weeks fully paid secondary caregiver leave.
• Technology Financial Support: A technology stipend to set up a home office and a monthly allowance for internet expenses.

impact.com is proud to be an equal opportunity workplace. All employees and applicants for employment shall be given fair treatment and equal employment opportunity regardless of race, ethnicity or ancestry, color or caste, religion or belief, age, sex (including gender identity, gender reassignment, sexual orientation, pregnancy/maternity), national origin, weight, neurodivergence, disability, marital and civil partnership status, caregiving status, veteran status, genetic information, political affiliation, or other prohibited non‑merit factors.

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