InterviewHack.ai
Start free
Jobs / Affirm

Senior Software Engineer, Backend (Payments)

Affirmsenior

In short

  • ▸Ingeniero backend senior especializado en procesamiento de pagos a gran escala.
  • ▸Desarrollas y mantienes sistemas críticos que manejan miles de millones en transacciones anuales.
  • ▸Trabajas con equipos globales en EE.UU. y Europa para impulsar expansión internacional y métricas financieras.

Strong verbal and written communication skills that support effective collaboration with o

Apply on company site ↗Share on WhatsApp

In ~1 minute you get: who interviews you, the likely questions answered from your CV, and your CV tailored to this job. Free, no card.

What they ask for

  • ✓4+ años construyendo sistemas backend a gran escala.
  • ✓Experiencia con Python o Kotlin en entornos distribuidos.
  • ✓Conocimiento de AWS, MySQL y Kubernetes para sistemas altamente disponibles.
  • ✓Capacidad para liderar el diseño técnico de funciones complejas con enfoque en simplicidad y escalabilidad.
  • ✓Habilidades avanzadas de comunicación verbal y escrita para colaborar con equipos globales.
  • ✓Proactividad en identificar y resolver problemas técnicos, operativos y de proceso.

Don't tick every box? That's normal — your free dossier shows your gaps and how to cover them in the interview.

PythonKotlinAWSMySQLKubernetesDistributed SystemsHigh Availability SystemsPayment ProcessingGlobal Engineering TeamsTechnical Leadership

Who should you write to at Affirm?

Your free dossier identifies the people who'd interview you — their background, what they value, and how to reach out so you stand out before applying.

Affirm is reinventing credit to make it more honest and friendly, giving consumers the flexibility to buy now and pay later without any hidden fees or compounding interest. About the Engineering team The Engineering team builds systems that power Affirm’s mission. We take pride in our craft, building reliable, performant, and scalable solutions that touch every part of the business. Whether we’re enabling new ways to pay, ensuring our platforms can scale to the most demanding levels in the industry, or developing seamless servicing experiences, our focus is on solving complex problems through exceptional engineering. About the team As part of the Consumer Payments team at Affirm, you'll be working on Affirm's Payment Processing Network. These systems currently process billions of dollars in payments each year and are vital components in Affirm's platform. We are looking for highly motivated software engineers who are passionate about building high throughout, high availability systems that can grow alongside a high growth business. You will be working alongside multiple partner teams across Europe and the US to support feature development, international expansion as well as moving the dial on key financial metrics for the business. What you’ll do • 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. What we look for • You have 4+ years of experience designing, developing and launching backend systems at scale using languages like Python or Kotlin. • You have a track record of developing highly available distributed systems using technologies like AWS, MySQL and Kubernetes. • You have experience defining a technical plan for the delivery of a significant feature or system component with an elegant, simple and extensible design. You write high quality code that is easily understood and used by others. • You 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 safely. • · Your experience demonstrates that you take ownership of your growth, proactively seeking feedback from your team, your manager, and your stakeholders. • You have strong verbal and written communication skills that support effective collaboration with our global engineering team. Compensation & Benefits Base Pay Grade - N Equity Grade - 5 Employees new to Affirm typically come in

More jobs like this

Remote Backend Developer jobs

Don't apply unprepared

We research who's interviewing you, tailor your CV and rehearse you live — first one free.

InterviewHack.ai

Prepare for the exact interview: who's interviewing you, a tailored CV, and a real coach.

Product

JobsFree ATS checkerSalary checkLATAM salary reportFree coursesBlogTailored CVReal coachPricing

Remote jobs

ReactPythonFull-StackLATAMMexicoSee all →

Prepare

Practice with a coachFrontendBackendAI EngineerBy companySell with your CV

Company

For employersAboutContactPrivacyTerms

© 2026 InterviewHack.ai · Your CV is yours. Never used to train anything.

Similar open roles

Staff CIAM Security Engineer

Affirm · Remote US

→

Staff CIAM Security Engineer

Affirm · Remote Canada

→

Manager, Software Engineering (International)

Affirm · Remote UK

→

Manager, Machine Learning Engineering (Repayment & Recovery)

Affirm

→