Senior Software Engineer (Backend (Identity International))
Affirm
senior
Location
United Kingdom
Work Type
Remote
Open to applicants in
United Kingdom
Seniority
senior
Posted
September 26, 2026
Total Compensation
€215,000
Yearly Savings (Comfortable)
€107,000
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Job Description
- Help shape quarterly technical direction, translate team goals into concrete projects, and identify cross-cutting risks, tradeoffs, and opportunities
- Design across system boundaries, drive collaboration with partner teams, and advocate for technical investments that improve long-term execution
- Raise code quality and review standards, make performance, availability, and scale tradeoffs explicit, and improve operational health of systems owned
- Reduce toil, create useful playbooks, mentor engineers, support new hires and interns, and contribute to high-signal hiring
- Take ownership and deliver quarterly goals for the team, lead engineers through ambiguity to solve open-ended problems, and ensure everyone is supported throughout delivery
- Support peers and stakeholders in the product development lifecycle by collaborating with product management, design & analytics, participating in ideation, articulating technical constraints, and partnering on decisions that properly consider risks and trade-offs
- Proactively identify project, process, technology or business issues, advocate for them, and lead in solving them
- Support operations and availability of team’s artifacts by creating and monitoring metrics, escalating when needed, and supporting “keep the lights on” & on-call efforts
- Foster a culture of quality and ownership by setting or improving code review and design standards, and advocating for them beyond the team through writing and tech talks
- Develop talent on the team by providing feedback and guidance, and leading by example
Benefits
- Compensation: We have a simple, flexible, and transparent remote-first compensation structure so you can make the best decisions for yourself and your family
- Spending Wallets: Access tech, food, lifestyle, and family planning wallets for your expenses
- Supportive Communities: Get involved with our employee resource groups and community groups
- Remote-first Workforce: If your role is remote, you can set up shop anywhere in your home country
- Generous Time Off: Take the time you need when life happens
- Health Benefits: Get a plan that fits your needs
- Mental Healthcare: Take care of your mind with great mental health programs
- Parental Leave: Birth and non-birth parents get 18 weeks’ paid leave. Plus, a 4-week return-to-work transition program, at full base pay
- Away Days: We offer 20 company-wide paid days off—which help our teams collectively pause to recharge
- Learning & Development: Engage in exciting learning programs to level up your growth- Demonstrated ownership of your growth, proactively seeking feedback from your team, manager, and stakeholders
- 4+ years of experience designing, developing and launching backend systems at scale using languages like Python or Kotlin
- Track record of developing highly available distributed systems using technologies like AWS, MySQL and Kubernetes
- Experience defining a technical plan for the delivery of a significant feature or system component with an elegant, simple and extensible design. Write high quality code that is easily understood and used by others
- Strong verbal and written communication skills that support effective collaboration with a global engineering team
- 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
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