Welcome to PrimerAt Primer, we are pioneering the world's first unified payment infrastructure, empowering businesses globally to realize their payment potential. Our platform enables merchants to take command of their payment systems, crafting unique commerce experiences, accelerating their growth trajectories, and enhancing payment success rates. We are dedicated to transforming complex processes into seamless, intuitive solutions. Supported by premier investors like Accel, Balderton, Iconiq, and Tencent, Primer is on a mission to redefine payments and commerce from the ground up.Join us in revolutionizing the future of payments and commerce.Your Future TeamYou will be joining our Partners team, which is innovating how we empower third-party payment service providers to harness the capabilities of Primer’s unified payment infrastructure, offering a scalable and adaptable platform for growth.As a Senior Software Engineer reporting to an Engineering Manager, you will collaborate with a diverse team of backend, frontend, and mobile engineers, working closely with our Product team.Our team embraces a 'you build it, you own it' philosophy, engaging in infrastructure management, testing, and quality assurance independently.Our tech stack features: Python, Typescript, React, Swift, Kotlin, AWS, Kubernetes, and Terraform, among others. Key ResponsibilitiesDesigning and implementing core backend services for high-performance, complex distributed systemsTaking charge of critical technology decisions, focusing on scalability and optimizationChampioning modern development methodologies such as Behavior-Driven Development (BDD) and Test-Driven Development (TDD)Writing clear, modern, well-tested codeCollaborating across teams in a product-driven environmentConducting code reviews and continuously seeking improvements in our workflowsDocumenting projects with thorough internal documentation Desired Skills and ExperienceComprehensive understanding of the full development lifecycle (design, development, deployment)Experience in developing frameworks and workflows for seamless integration by customers and third partiesProficiency in Python is a plus (as it is our primary language), but we have successfully onboarded candidates from various backgrounds
Apr 13, 2026