Source Job

UK Unlimited PTO

  • Build and operate systems for bank and card payments across Affirm’s international markets.
  • Collaborate with product, analytics, and engineering teams to solve challenges across currencies and customer needs.
  • Foster a culture of quality and ownership through code review, design standards, and mentoring.

Python Kotlin AWS MySQL Kubernetes

20 jobs similar to Senior Software Engineer, Backend (International)

Jobs ranked by similarity.

Canada Unlimited PTO

  • Break down larger projects into individual tasks and deliver them in phases while collaborating with your team.
  • Partner with product, design, and analytics to articulate technical constraints, assess trade-offs, and shape decisions.
  • Support system availability by creating and monitoring metrics, escalating issues, and participating in on-call efforts.

Affirm is a financial technology company offering point-of-sale installment loans and payment solutions that let consumers pay over time predictably. It is a publicly traded, remote-first company with a global engineering team and a culture centered on transparency, customer trust, and flexibility.

Canada Unlimited PTO

  • Work with technical leaders to design and implement forward-looking approaches for checkout systems.
  • Own components of checkout systems and define their long-term health.
  • Collaborate with engineers to build the next generation of the checkout platform.

Affirm provides a clear, predictable way to pay over time through buy now, pay later solutions. It is a remote-first company with a culture focused on honesty, trust, and customer-centric innovation.

Canada Unlimited PTO

  • Own and deliver quarterly goals, leading engineers through ambiguity and ensuring support.
  • Collaborate with product, design, and analytics to make decisions considering risks and trade-offs.
  • Support operations and availability of team artifacts while fostering quality and ownership.

Affirm provides clear, predictable buy now, pay later services with no hidden fees. It is a growing, remote-first company that values transparency, flexibility, and customer trust.

UK Unlimited PTO

  • Design, develop, and launch backend systems and APIs at scale using Python or Kotlin.
  • Collaborate with product, design, and analytics to break down projects and deliver timely solutions.
  • Support operations by creating metrics, monitoring, and participating in on-call efforts.

Affirm is reinventing credit to make it more honest and friendly, giving consumers the flexibility to buy now and pay later without hidden fees. We are a remote-first company with a culture of transparency, flexibility, and inclusion.

Poland

  • Set the technical strategy for the Recoveries platform and drive cross-team initiatives that optimize recovery strategies and strengthen reliability.
  • Collaborate with product management, design, and analytics to manage technical sustainability, risks, and trade-offs across the product lifecycle.
  • Foster a culture of quality and ownership by setting code review and design standards, while developing talent through feedback and guidance.

Affirm provides clear, predictable payment solutions with no hidden fees, helping people pay over time for the moments that matter. The company is remote-first and values transparency, flexibility, and employee well-being.

$78,840–$117,720/yr
Spain Unlimited PTO

  • Break down complex projects into tasks and deliver them in phases with your team.
  • Collaborate with product, design, and analytics to build scalable card experiences.
  • Support operations and on-call efforts, improving system reliability and availability.

Affirm is a financial technology company that offers clear, predictable pay-over-time solutions with no hidden fees. It is a remote-first company with a collaborative culture focused on transparency, flexibility, and employee well-being through comprehensive benefits.

$64,750–$94,750/yr
Poland

  • Break down projects into tasks and deliver them in phases with your team.
  • Partner with product, design, and analytics to build scalable backend systems.
  • Monitor metrics, support on-call, and contribute to code reviews.

Affirm exists to give people a clear, predictable way to pay over time, with no hidden fees. It is a remote-first company that cares about employee well-being through comprehensive benefits and an inclusive culture.

Canada Unlimited PTO

  • Design and build the gateway, runtime, and evals services for AI workloads at scale.
  • Own technical decisions from design to launch, including identity, quota, and failover controls.
  • Partner with security and infrastructure teams to set guardrails for agentic workloads.

We provide clear, predictable pay-over-time financial products with no hidden fees. We are a remote-first company with an engineering culture centered on blameless postmortems and detailed technical design.

US Unlimited PTO

  • Drive technical strategy for the card loan platform by leading planning and execution of projects.
  • Design and develop large-scale, high-availability services with robust APIs and data models.
  • Collaborate across functions with product, analytics, and other teams to define requirements and execute card loan strategy.

Affirm provides a clear, predictable way to pay over time for purchases, with no hidden fees. It is a remote-first company experiencing explosive growth and fostering a culture of care, transparency, and flexibility.

$77,000–$107,000/yr
Poland

  • Own and deliver quarterly technical goals for the Communications area.
  • Design reliable backend services for high-volume, multi-region messaging infrastructure.
  • Collaborate with engineering partners and support on-call operations.

Affirm builds honest financial products that give people a clear, predictable way to pay over time with no hidden fees. It is a remote-first company focused on reliable, performant, and scalable engineering solutions.

$92,880–$131,760/yr
Spain

  • Own and deliver quarterly technical goals for the Communications area, solving ambiguous problems in messaging infrastructure.
  • Design and scale reliable backend services for high-volume communications across multi-region, multi-tenant environments.
  • Collaborate with product, design, analytics, and engineering partners while mentoring teammates and supporting on-call rotation.

Affirm is a financial technology company providing a clear, predictable way to pay over time with no hidden fees. It is a remote-first organization focused on care, transparency, and flexibility, with fully subsidized health coverage and flexible time off.

US Unlimited PTO

  • Set technical strategy and align your team with critical, business-impacting projects.
  • Collaborate cross-functionally with product management, design, and analytics to manage technical risks and trade-offs.
  • Foster a culture of quality, ownership, and operational excellence through monitoring, testing, and engineering standards.

Affirm provides a clear, predictable way to pay over time through installment loans, with no hidden fees or surprises. It is a remote-first company that values transparency, flexibility, and employee well-being, offering comprehensive benefits and a collaborative culture.

Poland

  • Break down larger projects into individual tasks and deliver them in phases.
  • Collaborate with product, design, and analytics to balance risks and trade-offs.
  • Support operations by creating metrics and participating in on-call efforts.

Affirm provides clear and predictable payment solutions, letting people pay over time with no hidden fees or surprises. The company serves over 20 million users and fosters an agile, fast-paced culture that values curiosity, ownership, and collaboration.

US Unlimited PTO

  • Define and evolve workload safety standards for Affirm's EKS fleet, owning each standard end to end.
  • Lead cross-team initiatives from design through fleet-wide rollout, and mentor other engineers.
  • Participate in on-call for Kubernetes runtime issues and turn recurring failures into roadmap items.

Affirm offers consumers a clear, predictable way to pay over time, with no hidden fees. The engineering team is building large-scale, highly available global infrastructure, with a culture of technical design review and operational excellence.

$195,000–$220,000/yr
US

  • Build and own backend services and APIs for policy, coverage, enrollment, and regional rules that scale to new markets.
  • Translate regional regulatory and product requirements into configurable, reusable platform capabilities.
  • Partner with Product, Design, Data Science, and Legal to prioritize high-impact work and drive data-informed improvements.

Airbnb is an online marketplace that connects hosts offering unique stays and experiences with guests seeking authentic travel. With over 5 million hosts and 2 billion guest arrivals, it values inclusion, belonging, and a fast-growing, collaborative culture.

Canada Unlimited PTO

  • Architect and evolve Affirm's EKS platform, driving strategy across cluster lifecycle and node management.
  • Lead technical direction for cluster provisioning and upgrades through standardized Infrastructure-as-Code and self-service workflows.
  • Partner with product, SRE, and capacity teams to shape the platform and mentor engineers.

Affirm provides a clear, predictable way to pay over time, with no hidden fees and no surprises. The company is remote-first and its engineering organization emphasizes technical design review, operational excellence, and mentorship at scale.

$146,000–$225,000/yr
US Unlimited PTO

  • Build and ship customer-facing authentication features like MFA and step-up authentication.
  • Develop backend services and APIs in Python or Kotlin.
  • Collaborate with engineering and product partners to deliver scoped identity features.

Affirm is a financial technology company offering buy now, pay later services with no hidden fees. It is a remote-first company that values transparency and flexibility, with a focus on caring for employees through comprehensive benefits.

US

  • Design, build, test, and deploy backend features across payments, fraud, compliance, and user management
  • Integrate with banks, card networks, and third-party services, handling the edge cases money movement demands
  • Write and review technical designs and participate in architecture discussions for distributed, event-driven systems

Astra builds mission-critical infrastructure for moving money at scale, processing billions in annual transaction volume. They are a small, remote-first team with a culture of thoughtful collaboration and initiative.

US Unlimited PTO

  • Own the architecture of Affirm's telemetry pipeline, balancing reliability, query performance, and cost at 200+ TB/day.
  • Design log sampling strategies and shape observability in agentic development to catch instrumentation gaps before code ships.
  • Set technical strategy, mentor a team of six engineers, and collaborate across product, design, and analytics teams.

Affirm is a financial technology company that provides a clear, predictable way to pay over time. It is a remote-first company with a focus on care, transparency, and flexibility for its employees.

$150,000–$200,000/yr
US

  • Design and build shared platform capabilities, owning architecture and delivery of reusable backend services and integrations.
  • Direct implementation by writing specifications and delegating to AI agents, stepping into code when complexity demands.
  • Engineer for reuse, compatibility, and testability, owning testing strategy and building reliability and observability into the platform.

ComPsych is the worldwide leader in organizational mental health, well-being, and absence management, dedicated to igniting human potential in workplaces across the globe. With over 40 years of experience, they serve more than 75,000 customers worldwide, touching over 160 million lives, and 40% of the Fortune 500 choose them for their mental health needs.