Marketing & Privacy Engineering (MPE) builds trusted, privacy-aware consumer web experiences and measurement systems that enable sustainable growth Within MPE, the Marketing pillar owns Affir’s Logged-Out Web experiences, web experimentation, client-side tagging, marketing technology integrations, attribution, and measurement As a Senior Software Engineer on MPE, you will help shape the architecture, reliability, and evolution of high-traffic consumer web experiences while building the instrumentation and integrations that connect those experiences to Affir’s growth and measurement systems You will work across modern web applications, experimentation, Google Tag Manager and server-side GTM integrations, conversion tracking, advertising and marketing APIs, and observability You will partner closely with Product, Marketing, Analytics, Data Engineering and adjacent platform teams to ensure that web experiences are performant and measurable and that consent, cookies, tagging, and consumer-data requirements are considered from the start You will be responsible for owning and delivering quarterly goals for your team, leading engineers on your team through ambiguity to solve open-ended problems, and ensuring that everyone is supported throughout delivery You will support your peers and stakeholders in the product development lifecycle by collaborating with product management, design & analytics by participating in ideation, articulating technical constraints, and partnering on decisions that properly consider risks and trade-offs You will proactively identify project, process, technology or business issues, advocate for them,



and lead in solving them You will support the operations and availability of your team’s artifacts by creating and monitoring metrics, escalating when needed, and supporting “keep the lights on” & on-call efforts You will foster a culture of quality and ownership on your team by setting or improving code review and design standards for your team, and advocating for them beyond your team through your writing and tech talks You will help develop talent on your team by providing feedback and guidance, and leading by example Benefits

Compensation: We have a simple, flexible, and transparent remote-first compensation structure so you can make the best decisions for yourself and your family Spending Wallets: Access tech, food, lifestyle, and family planning wallets for your expenses Supportive Communities: Get involved with our employee resource groups and community groups Remote-first Workforce: If your role is remote, you can set up shop anywhere in your home country Generous Time Off: Take the time you need when life happens Health

Benefits:
Get a plan that fits your needs Mental Healthcare: Take care of your mind with great mental health programs Parental Leave: Birth and non-birth parents get 18 weeks’ paid leave. Plus, a 4-week return-to-work transition program, at full base pay Away Days:

We offer




20 company-wide paid days off—which help our teams collectively pause to recharge Learning & Development: Engage in exciting learning programs to level up your growth This role is a strong fit for an engineer who enjoys owning complex web systems, solving ambiguous cross-functional problems, and raising the technical quality and operational reliability of the platforms they work onYou have hands‑on experience with web instrumentation and marketing technology such as Google Tag Manager (GTM/sGTM), analytics and experimentation platforms, conversion tracking, advertising or marketing APIs, and third‑party web integrationsYou are proficient at making significant changes in a large code base, and have developed a suite of tools and practices that enable you and your team to do so safelyYou are proficient in working with Javascript/TypescriptYou have experience defining a technical plan for the delivery of a significant feature or system component with an elegant, easy and extensible design. You write high quality code that is easily understood and used by othersYou have experience designing reliable, performant consumer web systems and understand how consent, cookies, tagging, observability, and data collection affect modern web architecture and measurementYour experience demonstrates that you take ownership of your growth, proactively seeking feedback from your team, your manager, and your stakeholdersYou have 4+ years of experience of developing and architecting web applications using declarative UI frameworks like React or VueYou have strong verbal and written communication skills that support effective collaboration with our global engineering team

📌 Senior Software Engineer (Montreal)
🏢 Affirm
📍 Montreal