# Senior Software Engineer, Backend (Comms Platform) at Affirm

> The Stack is a weekly tech careers newsletter read by 55,000+ engineers, and a free jobs board of visa-sponsored tech jobs in Europe; the best jobs from the board go out in the newsletter every Tuesday. This is one job from the board.

> Affirm is reinventing credit to make it more honest and frie

- **Company:** Affirm (https://jobs.trythestack.co/companies/affirm)
- **Location:** Remote Spain
- **Work arrangement:** Remote
- **Employment type:** Full-time
- **Experience level:** 5–10 years
- **Visa sponsorship:** Not stated
- **Key skills:** Python, Kotlin, AWS, MySQL, Kubernetes, Code Review, Design Standards, Technical Planning, Distributed Systems, Communication Skills, Problem Solving, Team Leadership, Metrics Monitoring, Proactive Maintenance, Quality Assurance, Talent Development
- **Posted by employer:** 2026-03-18
- **Added to The Stack:** 2026-03-30
- **Status:** May no longer be active (posted more than 60 days ago)
- **Apply:** https://job-boards.greenhouse.io/affirm/jobs/6642238003 (the employer's own application page)
- **Human page:** https://jobs.trythestack.co/jobs/senior-software-engineer-backend-comms-platform-affirm

## About the role

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. The Comms Platform team is responsible for managing critical services that are essential to the success and sustainability of our organization. In simple terms, we handle transactional communication send-outs to our customers via email, SMS, and push notifications. These services demand attention to detail, proactive maintenance, and swift response times to ensure seamless operations. Our recent high-priority initiatives include re-architecture/platform modernization, high availability and internationalization efforts; these are vital for our organization's growth and competitiveness in the market. These initiatives require dedicated expertise and resources to execute efficiently and effectively. Without adequate capacity, we risk delays, reduced quality, and missed opportunities to achieve key strategic objectives; but most important - our Customers deserve always on time and high quality comms!   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. · On-Call Rotation - There would be an on-call rotation for this role as a requirement. What We Look For · You have 5+ 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. · This position requires either equivalent practical experience or a Bachelor’s degree in a related field.   COMPENSATION & BENEFITS Base Pay Grade - N Equity Grade - 4 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: €85,000  -  €115,000     Additional benefits include: * Flexible Spending Wallets for tech, food and lifestyle * Away Days - wellness days to take off work and recharge * Learning & Development programs * Parental benefits * Employee Resource & Community Groups Location - Remote Spain We are able to offer visa sponsorship for this role, but do require that someone is based in Spain for the role. #LI-Remote Affirm is proud to be a remote-first company! The majority of our roles are remote and you can work almost anywhere within the country of employment. Affirmers in proximal roles have the flexibility to work remotely, but will occasionally be required to work out of their assigned Affirm office. A limited number of roles remain office-based due to the nature of their job responsibilities. We’re extremely proud to offer competitive benefits that are anchored to our core value of people come first. Some key highlights of our benefits package include:  * Health care coverage - Affirm covers all premiums for all levels of coverage for you and your dependents  * Flexible Spending Wallets - generous stipends for spending on Technology, Food, various Lifestyle needs, and family forming expenses * Time off - competitive vacation and holiday schedules allowing you to take time off to rest and recharge * ESPP - An employee stock purchase plan enabling you to buy shares of Affirm at a discount We believe It’s On Us to provide an inclusive interview experience for all, including people with disabilities. We are happy to provide reasonable accommodations to candidates in need of individualized support during the hiring process. [For U.S. positions that could be performed in Los Angeles or San Francisco] Pursuant to the San Francisco Fair Chance Ordinance and Los Angeles Fair Chance Initiative for Hiring Ordinance, Affirm will consider for employment qualified applicants with arrest and conviction records. By clicking "Submit Application," you acknowledge that you have read Affirm's Global Candidate Privacy Notice [https://www.affirm.com/global-candidate-privacy-notice] and hereby freely and unambiguously give informed consent to the collection, processing, use, and storage of your personal information as described therein.

## Responsibilities

You will own and deliver quarterly goals for your team while leading engineers through ambiguity to solve open-ended problems. Additionally, you will support operations and availability by creating and monitoring metrics and fostering a culture of quality and ownership.

## Requirements

Candidates should have 5+ years of experience in backend systems development using languages like Python or Kotlin, and a track record of developing highly available distributed systems. Strong communication skills and a proactive approach to problem-solving are also essential.

## FAQ

- **Is this Senior Software Engineer, Backend (Comms Platform) role still open?** It was posted on 2026-03-18. Listings more than 30 days old may no longer be active, so check Affirm's site before applying.
- **Where is this role located?** The listing gives the location as Remote Spain. It is marked remote.
- **What skills does this role ask for?** The listing names: Python, Kotlin, AWS, MySQL, Kubernetes, Code Review, Design Standards, Technical Planning, Distributed Systems, Communication Skills, Problem Solving, Team Leadership, Metrics Monitoring, Proactive Maintenance, Quality Assurance, Talent Development.

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## Notes for agents

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