Senior Sales Engineer

Affirm

. Combine technical aptitude, communication skills, and creative problem solving to help enterprise merchants design and implement scalable, reliable solutions on the Affirm platform.

Posted 10/15/2026full-timeRemote • United StatesSenior💰 $155,250 - $222,750 per yearWebsite

Core Competencies

Role fit

Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in Solution Architecture and API Integrations within the payments and fintech industries, with a strong focus on Checkout Processes and Customer Success. Capable of leading technical discovery and developing scalable solutions while effectively communicating complex concepts to diverse audiences.

Highest-signal resume keywords

Solution ArchitectureAPI IntegrationsPayments Industry ExperienceTechnical SalesCustomer Success

ATS Keywords

Tailor your resume

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills

Solution ArchitectureAPI IntegrationsCheckout ProcessesPayment SystemsSaaS PlatformsE-commerce SolutionsTechnical DocumentationProgramming Language ProficiencyArchitecting SolutionsTechnical Advisory

Soft Skills

Excellent Communication SkillsRelationship-BuildingCreative Problem SolvingAttention to DetailExecutive Presence

Certifications & Qualifications

BA/BS Degree in Business/Technology

Industry Keywords

FintechE-commercePaymentsFinancial InfrastructureEnterprise ArchitecturesPre-sales SupportCustomer JourneysCompetitive LandscapeBest PracticesTraining Materials

About the role

Key responsibilities & impact

Combine technical aptitude, communication skills, and creative problem solving to help enterprise merchants design and implement scalable, reliable solutions on the Affirm platform.
Lead technical discovery, analyze requirements, and identify well-architected solutions during pre-sale activities.
Serve as a technical advisor to customers and collaborate with Sales, Engineering, and Product teams.
Serve as a subject matter expert on Affirm integration solutions, merchant checkout, customer journeys, and the competitive landscape.
Develop and articulate technical narratives mapping Affirm’s capabilities to merchant systems.
Architect end-to-end solutions for complex integrations and customizations, evaluating tradeoffs and non-functional requirements.
Build trust with internal and external technical counterparts and foster long-term enterprise and key-merchant relationships.
Partner with sales and partner engineering teams to drive opportunities and support successful implementations.
Provide customer insights to influence product development and feature prioritization.
Create and share best practices, reusable assets, and training materials.
Provide technical and architectural input into sales planning and forecasting; identify risks and constraints.
Develop pre-sales support materials and documentation for new products and features.
Build and present custom demos as required.

Requirements

What you’ll need

Passion and drive to change consumer checkouts & payments for the better
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
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
Passion for customer success and dedication to championing the customer voice
Experience architecting solutions and technically positioning them with prospects for e-commerce platforms, payment gateways, in-store point of sale systems, etc.
Willingness to travel up to 30% of the time
Visa sponsorship is not available for this position.

Benefits

Comp & perks

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.
Employee stock purchase plan (ESPP) lets you buy Affirm stock at a discount.
Inclusive interview process, including accommodations for candidates with disabilities.
In-person onboarding experience for all new hires.