Senior Sales Engineer

Remote · Remote US · USD 136,350-203,850 / year · 3+ years experience · Remote · Posted Oct 15, 2026

At a glance

As a Senior Sales Engineer at Affirm, you will combine technical aptitude, communication skills, and creative problem solving to help enterprise merchants design and implement scalable solutions.
You will support pre-sale activities by leading technical discovery, analyzing requirements, and identifying well-architected solutions to win deals and drive business forward.

Serve as the subject matter expert on Affirm’s integration solutions, demonstrating deep understanding of merchant checkout, customer journeys, and the competitive landscape.
Architect elegant solutions addressing specific customer challenges, including complex integrations and customizations.
Build the trust of your technical counterparts internally and externally while fostering long-term relationships with Enterprise & Key merchants.
Partner with sales and partner engineering teams to drive opportunities for our largest customers, leading solution strategy and laying groundwork for successful implementations.
Act as the voice of the customer, providing actionable insights to influence product development and feature prioritization to product management at Affirm.
Create and share best practices, reusable assets, and training materials to enhance go-to-market efficiency.
Provide technical and architectural input into sales planning and forecasting, identify technical risks and constraints early, and collaborate with Sales Operations to design scalable, repeatable technical engagement models.
Develop pre-sales support material and documentation for new products and features.
Build and present custom demos as required.

BA/BS degree in business/technology, or equivalent technical account management experience
4+ years of experience in Sales Engineering, Solution Architecture, Partner Engineering, Solutions Engineering, technical sales or pre-sales roles, focusing on solution architecture and best practices
3+ years of current experience in the payments, fintech, or closely related industry
Strong technical acumen in API integrations, SaaS platforms, and enterprise architectures, with particular emphasis on Checkout processes and payment systems
Proven ability to manage multiple assignments simultaneously, work independently and drive projects to completion with minimum guidance and high attention to detail
Extensive experience with Ecomm, In-Store, Telesales etc. checkout & payment solutions
Solid understanding of financial infrastructure industry trends and emerging technologies
Keen technical mind comfortable writing scripts in at least one programming language
Excellent communication skills, with the ability to articulate complex technical concepts to diverse audiences
Executive presence and strong relationship-building skills

Health coverage at no cost: 100% of premiums covered for employees and dependents
Spending stipends: monthly stipends for tech setup, health, and wellness options
Time off to recharge: flexible time off and generous holiday calendars
Employee stock purchase plan (ESPP) to buy Affirm stock at a discount

Remote role open only to candidates residing in Alberta, British Columbia, Manitoba, New Brunswick, Newfoundland and Labrador, Nova Scotia, Ontario, Prince Edward Island, or Saskatchewan.
Willingness to travel up to 30% of the time
Remote-first with flexibility built in