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Senior Sales Engineer

Affirm

Remote US · 3+ years experience · Remote · Posted Oct 15, 2026

At a glance

Experience
3+ years experience
Workplace
Remote
Location
Remote US
Visa sponsorship
Visa sponsorship not offered

About the role

  • As a Senior Sales Engineer at Affirm, you will combine your technical aptitude, communication skills, and problem solving to help enterprise merchants design and implement scalable, reliable solutions on the Affirm platform.
  • You will support pre-sale activities by leading technical discovery, analyzing requirements, and identifying well-architected solutions to win deals and drive the business forward.
  • Working as part of the Merchant Engineering team, you will collaborate closely with Sales, Engineering, and Product teams to develop merchant solutions and serve as a trusted technical advisor.

Responsibilities

  • 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.
  • Evaluate tradeoffs across merchant constraints, platform capabilities, and non-functional requirements, and design tailored solutions aligned with each merchant’s business and technical priorities.
  • Build the trust of your technical counterparts, both 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 & 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.

Requirements

  • 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

Benefits

  • Health coverage at no cost: We cover 100% of premiums for employees and their dependents
  • Monthly stipends support your tech setup, and the ability to choose health and wellness options that are right for you
  • Flexible time off and generous holiday calendars help you rest when you need to
  • Employee stock purchase plan (ESPP) lets you buy Affirm stock at a discount

Workplace

  • Remote-first with flexibility built in
  • Willingness to travel up to 30% of the time
  • Some positions may occasionally require in-person work at an Affirm office

Skills

  • API Integrations
  • SaaS Platforms
  • Enterprise Architectures
  • Checkout Processes
  • Payment Systems
  • E-commerce Platforms
  • Payment Gateways
  • In-store Point Of Sale Systems

Affirm

Senior Sales Engineer

Apply now