Senior Platform Engineer

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🕒 March 12

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Polar

WebsiteLinkedInAll Job Openings

1 - 10 employees

Founded 2022

💳 Fintech

☁️ SaaS

🔌 API

Fintech • SaaS • API

Polar is a developer-first payments and billing platform that helps software companies monetize digital products and SaaS with minimal code. It provides APIs and SDKs (Next. js, TypeScript, ingestion libraries) for subscriptions, usage-based and ingestion-based billing (including LLM/token consumption), secure checkouts, customer portals, webhook handling, and global merchant-of-record services that handle taxes and compliance. Polar emphasizes open-source, easy integration, and tooling for billing, customer management, and analytics.

📋 Description

• We’re hiring a Senior Platform Engineer to architect and evolve the Polar platform - ensuring the system remains fast, resilient and operationally sound as we scale. • Ensure Platform Reliability & Uptime: Design and evolve systems that maintain high availability, predictable performance and operational stability. • Engineer for Scale & Performance: Strengthen how our distributed services behave under load. • Advance SRE & DevOps Practices: Embed reliability engineering practices across the platform. • Evolve Cloud & Infrastructure Systems: Continuously evolve Polar’s infrastructure baseline. • Strengthen Deployment & Operational Safety: Refine CI/CD systems, rollout strategies and rollback mechanisms. • Improve Observability & Debuggability: Advance logging, metrics and tracing standards. • Collaborate across Engineering, Risk & Legal: Work closely with product and infrastructure engineers, as well as risk and legal stakeholders.

🎯 Requirements

• 5-8+ years of engineering experience, building and scaling customer-facing SaaS or fintech products in a high-growth environment. • Experience in payments and billing infrastructure - subscription lifecycles, transaction orchestration, refunds/disputes, payouts and financial state management. • Strong backend expertise - you design clear, durable APIs and build systems that are resilient under real-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 trace complex issues across services and understand how to prevent them in the future. • Experience building or operating distributed systems with strong reliability and operational requirements. • Nice-to-have: Open source contributions or side projects/apps to showcase.

🏖️ Benefits

• Meaningful ownership: Small team & large surface area. You’ll directly influence how the company and platform scale. • Product-driven culture: We build to empower the next generation of software companies - and operate with the same builder mindset internally. • Competitive compensation: Salary and equity aligned with the impact of the role. • Exceptional team: Work with highly talented team members distributed across Europe. • Remote-first environment: Work from anywhere in Europe, with a home office setup budget available. • Annual team offsites: As the team is spread across Europe, we gather 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: Paid parental leave aligned with the standards and regulations of your local jurisdiction.