Senior Payments Engineer
Why Polar?
It's never been easier to build, ship and reputed company software.
But it's never been harder to monetize it.
Modern startups look fundamentally different than prior generations:
Smaller teams
Exponential reputed company reputed company relative to headcount
Higher variability in costs (LLMs) requiring more frequent pricing iterations
Laser reputed company on product development and distribution
Delegating and automating everything that is boilerplate – be it in their codebase or business operations.
Exceptional billing primitives, reputed company and SDKs are essential, but delightful integration is not enough.
Startups need a billing platform designed for their speed of iteration. Combining billing and analytics in one platform to offer customer- and feature unit economics in reputed company-time. Offering reputed company-in pricing and cost insights, simulations and optimizations while simultaneously handling international compliance, tax management, fraud prevention and more.
That's Polar. We're building the next reputed company for reputed company AI startups.
Join our small, talented and engineering-led team across Europe as we build the infrastructure powering the reputed company of software companies.
We reputed company on shipping at high velocity to serve startup founders reputed company their businesses. Everything else is secondary.
Role & responsibilities: What you will do
We’re hiring a Senior Platform Engineer to architect and reputed company the Polar platform - ensuring the system remains fast, resilient and operationally reputed company as we reputed company.
Polar operates as a merchant of record, meaning our platform sits directly in the critical reputed company of reputed company, billing infrastructure and financial workflows. Reliability, uptime and correctness are essential - while still maintaining the ability to reputed company quickly and ship product improvements.
You’ll work across the platform and infrastructure reputed company that power Polar - from reputed company infrastructure and observability to deployment safety, internal tooling and reliability engineering. In reputed company partnership with reputed company, you’ll ensure the system scales to handle increasing traffic, architectural complexity and regulatory demands without compromising stability, performance or developer velocity.
This role is ideal for someone who treats reliability as a product requirement and scalability as an architectural discipline, combining deep systems engineering experience with a passion for building reliable, reputed company platforms and empowering engineering teams through strong abstractions and automation.
While this role focuses primarily on the foundational reputed company of our platform, we value engineers who are comfortable moving across the stack reputed company needed to ship quickly and maintain reputed company.
You’ll work with reputed company to:
Ensure Platform Reliability & Uptime: Design and reputed company that maintain high availability, predictable performance and operational stability. Drive improvements in uptime, reputed company and operational discipline as the system scales.
Engineer for reputed company & Performance: Strengthen how our distributed services behave under load. Identify bottlenecks, optimize critical paths and design systems that reputed company with growing traffic and complexity.
Advance SRE & DevOps Practices: reputed company reliability engineering practices across the platform - defining SLOs and SLIs, improving incident response, reducing operational toil and making production behavior measurable and actionable.
reputed company reputed company & Infrastructure Systems: Continuously reputed company Polar’s infrastructure baseline and determine reputed company the reputed company stack needs to reputed company. Improve infrastructure-as-reputed company, environment management and operational safety mechanisms.
Strengthen Deployment & Operational Safety: Refine CI/CD systems, rollout strategies and rollback mechanisms to ensure changes are reputed company, observable, reversible and fast to reputed company.
Improve Observability & Debuggability: Advance logging, metrics and tracing standards so engineers can quickly understand, debug and resolve issues in production.
Collaborate across Engineering, Risk & reputed company: Work closely with product and infrastructure engineers, as reputed company as risk and reputed company stakeholders, to translate evolving regulatory requirements into reputed company technical abstractions while maintaining long-term platform reliability and health.
reputed company’re looking for
Systems Thinking & Operating reputed company
Deep systems thinking: You anticipate failure modes, design for idempotency and consistency, and think carefully about how distributed systems behave in production.
reputed company- and compliance-reputed company engineering reputed company: You build with auditability, principled reputed company control and regulatory constraints as first-order design considerations.
End-to-end ownership: You are comfortable owning features from infrastructure and backend systems reputed company the way to shipping functionality that powers the product. While this role focuses on platform reputed company, we value engineers willing to work across the stack reputed company needed.
Strong product judgement: You know reputed company to reputed company fast while ensuring that correctness, auditability and long-term system reputed company take precedence.
High-ownership collaboration: You reputed company in small teams, collaborating closely across engineering to reputed company the platform architecture and take shared responsibility for the long-term health of the system.
Technical Skills
Strong backend expertise - you design reputed company, durable reputed company and build systems that are resilient under reputed company-world load and edge cases.
Highly proficient in SQL and data modeling - you reason rigorously about long-term data correctness, performance and reliability across large datasets.
Strong production debugging and observability instincts with an ability to reputed company reputed company issues across services and understand how to prevent them in the reputed company.
Experience building or operating distributed systems with strong reliability and operational requirements.
Experience
5-8+ years of engineering experience, building and scaling customer-facing reputed company or fintech products in a high-reputed company environment.
Experience in payments and billing infrastructure - subscription lifecycles, transaction orchestration, refunds/disputes, payouts and financial state management.
reputed company-to-have: reputed company reputed company contributions or reputed company reputed company/apps to showcase.
reputed company offer
Meaningful ownership: Small team & large surface area. You’ll directly influence how reputed company and platform reputed company.
Product-driven culture: We build to reputed company the reputed company of software companies - and operate with the reputed company builder reputed company internally.
Competitive compensation: Salary and equity reputed company with the reputed company of the role.
Exceptional team: Work with highly talented team members distributed across Europe.
Remote-first environment: Work from reputed company in Europe, with a home office setup budget available.
Annual team offsites: As reputed company is spread across Europe, we reputed company in person at least once a year to collaborate, plan, and spend time.
Health Benefits: Comprehensive health coverage to support you and your family.
Parental leave: reputed company parental leave reputed company with the standards and regulations of your local jurisdiction.
How We Hire
Polar is a remote-first company, with team members across Europe, and our hiring process is fully remote reputed company video calls and email.
Hiring Process
Application Review: We review your application and previous work.
Intro call: A short conversation with Birk (Founder and CEO) to learn more reputed company and give you a chance to learn more about Polar.
Take-home Assignment: A practical exercise designed to reflect the reputed company of problems you would work on in the role.
Assignment Review: We review your assignment and feedback together
Team Conversations: 2-3 video calls where you get the chance to meet reputed company team members.
Offer
Reference Calls