Senior Software Engineer, Backend (Comms Core)
Senior backend engineer to build and modernize Affirm's high-availability communications platform. You will design multi-region infrastructure and APIs to deliver billions of messages.
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About €3,610 - €5,280 a month after tax, or €3,670 - €5,950 under the Beckham regime.




Affirm sponsors work visas
Stated in the ad: “We are able to offer visa sponsorship for this role, but do require that someone is based in Spain for the role.”
Nice to have
Base Pay Grade - K
Equity Grade - 3
Employees new to Affirm typically come in at the start of the pay range. Affirm focuses on providing a simple and transparent pay structure which is based on a variety of factors, including location, experience and job-related skills.
Base pay is part of a total compensation package that may include monthly stipends for health, wellness and tech spending, and benefits (including 100% subsidized medical coverage, dental and vision for you and your dependents). In addition, the employees may be eligible for equity rewards offered by Affirm Holdings, Inc. (parent company).
ESP base pay range per year: €63,000 - €99,000
We are able to offer visa sponsorship for this role, but do require that someone is based in Spain for the role.
At Affirm, we exist for the moments that matter-giving people a clear, predictable way to pay over time, with no hidden fees, no surprises, and no tradeoffs on what matters most.
Financial Systems owns the data and reporting foundation for Accounting, and the operational reliability of the pipelines that power reporting, reconciliations, and automation. We are building a single source of truth for financial information using dbt and Snowflake to enable scalable BI and process automation across the org.
We are hiring an Analytics Engineer focused on maintaining and optimizing our finance data platform, improving reliability, efficiency, and performance of our pipelines and core datasets. This role is ideal for someone who enjoys operational ownership, building strong foundations, and making data systems easier and safer to run at scale.
Remote-first with flexibility built in
Affirm is proud to be a remote-first company. Most roles can be done from almost anywhere within the country of employment. Some positions may occasionally require in-person work at an Affirm office, and a few are office-based due to the nature of the work. All new hires will be invited to attend an in-person onboarding experience.
Benefits designed for you
Our benefits reflect our commitment to care, transparency, and flexibility. Here are a few highlights:
We're committed to providing an inclusive interview process, including accommodations for candidates with disabilities. If you need support, we're happy to help.
For positions based in San Francisco or Los Angeles: Affirm considers qualified applicants with arrest and conviction records, as required by law.
By clicking "Submit Application," you acknowledge that you have read Affirm's Global Candidate Privacy Notice and consent to the use of your personal information as described.
Affirm is a leading financial technology company that provides buy now, pay later (BNPL) services, enabling consumers to make purchases and pay over time with transparent, fixed payments. Founded in 2012 by Max Levchin, the company has grown into a major player in the fintech space, partnering with over 300,000 merchants, including major retailers like Amazon and Shopify. Affirm's platform offers point-of-sale loans, virtual cards, and savings products, and it is known for its focus on transparency and consumer-friendly financial solutions.
Affirm has established a significant engineering hub in Madrid, Spain, which serves as a key international technology center for the company. The Madrid office focuses on backend, fullstack, and mobile engineering, with roles spanning fraud prevention, card services, and international identity. The company's culture emphasizes collaboration, innovation, and a commitment to financial inclusion, making it an attractive employer for international tech professionals. Affirm offers competitive compensation, equity, and a flexible work environment, and it actively hires globally, with many roles in Spain open to English-speaking candidates.
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