Senior Sales Engineer

Affirm

5h • $155,250 - $243,000 • Remote

About The Position

Affirm is seeking a Senior Sales Engineer to help enterprise merchants design and implement scalable, reliable solutions on the Affirm platform. The role combines technical expertise, communication, and creative problem-solving to support pre-sales activities, lead technical discovery, analyze requirements, identify well-architected solutions, and help win deals.

As part of the Merchant Engineering team, the Senior Sales Engineer works closely with Sales, Engineering, Product, and partner engineering teams. The role serves as a trusted technical advisor to customers and internal stakeholders, supports long-term relationships with enterprise and key merchants, and provides customer insights to influence product development. It also contributes to scalable internal processes, go-to-market efficiency, sales planning, and pre-sales materials.

This is a remote-first role, with flexibility to work from almost anywhere within the country of employment. Some positions may occasionally require in-person work at an Affirm office, and new hires are invited to attend an in-person onboarding experience. The role may require travel up to 30% of the time.

Requirements

• BA/BS degree in business or technology, or equivalent technical account management experience.
• At least 4 years of experience in Sales Engineering, Solution Architecture, Partner Engineering, Solutions Engineering, technical sales, or pre-sales roles, focused on solution architecture and best practices.
• At least 3 years of current experience in payments, fintech, or a closely related industry.
• Strong technical acumen in API integrations, SaaS platforms, and enterprise architectures, particularly checkout processes and payment systems.
• Ability to manage multiple assignments, work independently, and drive projects to completion with minimal guidance and high attention to detail.
• Extensive experience with e-commerce, in-store, telesales, or other checkout and payment solutions.
• Understanding of trends and emerging technologies in the financial infrastructure industry.
• Technical aptitude and comfort writing scripts in at least one programming language.
• Excellent communication skills and ability to explain complex technical concepts to diverse audiences.
• Executive presence and strong relationship-building skills.
• Customer-success orientation and dedication to championing the customer voice.
• Experience architecting solutions and positioning them technically with prospects for e-commerce platforms, payment gateways, in-store point-of-sale systems, or similar.
• Willingness to travel up to 30% of the time.

Responsibilities

• Serve as the subject matter expert on Affirm integration solutions, merchant checkout, customer journeys, and the competitive landscape.
• Develop and articulate technical narratives that map Affirm’s capabilities to merchant systems and support platform adoption.
• Architect tailored end-to-end solutions for complex merchant challenges, integrations, and customizations while considering constraints, platform capabilities, and non-functional requirements.
• Build trust with internal and external technical counterparts and foster long-term relationships with enterprise and key merchants.
• Partner with Sales and partner engineering teams to lead solution strategy for large customers and lay the groundwork for successful implementations.
• Provide actionable customer insights to Product Management to influence product development and feature prioritization.
• Create and share best practices, reusable assets, and training materials to improve go-to-market efficiency.
• Provide technical and architectural input to sales planning and forecasting, identify technical risks and constraints, and work with Sales Operations on scalable engagement models and business processes.
• Develop pre-sales support materials and documentation for new products and features.
• Build and present custom demonstrations as needed.

Benefits

• Health coverage with 100% of premiums covered for employees and their dependents.
• Monthly stipends to support technology setup and health and wellness options.
• Flexible time off and generous holiday calendars.
• Employee stock purchase plan allowing employees to buy Affirm stock at a discount.
• Inclusive interview process, including accommodations for candidates with disabilities.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior