Senior Software Engineer Eu Remote H/F (Saskatchewan)

The Company You’ll JoinAt Rebuy, we’re on a mission to revolutionize shopping with intelligent, personalized experiences that wow customers around the globe. As a fully remote team, we power some of the fastest-growing DTC brands like Aviator Nation, Liquid Death, Magic Spoon, Blenders, Laird Superfoods, Primal Kitchen, and many more.We don’t just build great tech - we build lasting partnerships, a strong community, and a place where people love to work.The Problems You’ll SolveRebuy and its team members continually strive to create a high-spirited, intentional work environment that stresses performance, productivity, collaboration, and merit.Software Engineer, Back-End, you’ll own some of the most consequential systems at Rebuy. It requires deep PHP and Go expertise, careful architecture, and judgment that no automated tool can replicate. Merchant billing runs daily, touches real revenue, and demands someone who understands both the technical and business dimensions of every decision.Alongside billing, you’ll grow into a broader platform portfolio — the partner portal, data ETL pipelines, customer-facing APIs, and reporting infrastructure that power the business. And in the near term, you’ll play a critical role in a significant technical migration: moving our legacy Code Igniter 2 codebase to Code Igniter 4, including work tied to increasing our enterprise market share. This migration requires hands-on PHP expertise and cannot be deferred.Design and build Rebuy’s centralized billing system that handles merchant billing, partner payments, and customer-facing charges. Tackle genuinely complex financial engineering challenges with PHP and Go at scale. Build Robust APIs: Design and implement secure, well-structured APIs in PHP and Go to power billing events, payment processing, and financial data flows across our platform and Shopify integrations. This is high-priority, near-term work with real business dependencies — including enterprise partnership commitments — and requires a PHP engineer with the experience and judgment to do it right. Agentify the Platform: Partner with product and engineering to identify where AI agents can automate workflows, surface insights, and guide merchants through our product. Build the backend systems — APIs, data pipelines, and event hooks — that enable intelligent automation. Platform Breadth: Our team owns more than billing and payments — we also support a partner portal, data ETL pipelines, customer-facing reporting APIs, and the infrastructure that makes data flow reliably across the business. Security & Compliance: Stay current with the latest security trends, vulnerabilities, and best practices as they apply to billing and payment systems. Champion security-first engineering across authentication, authorization, data encryption, and compliance considerations in everything you build. PHP Technical Leadership: Serve as a key technical anchor for PHP across the engineering organization. Rebuy’s codebase has significant PHP depth and relatively few engineers with that expertise. You’ll lead code reviews, share knowledge actively, and help raise the PHP competency of the broader team. Quality Assurance: Conduct quality checks on deliverables to ensure code, setup, and configurations meet expected results. Ensure that all features meet high standards of quality and performance before deployment. Engage actively in building a strong team culture. Work closely with the Product Owner, Engineering Manager, and peers across billing, payments, partner tools, and data infrastructure to define requirements, estimate effort, and drive solutions forward. Technologies We Use AI: Anthropic Enterprise Claude Code / Co-work, Cursor, Adhoc AI tools budget. Frontend Technologies: React, TypeScript, GraphQL, VueJS, Angular PHP, GO, MySQL, BigTable, Elasticsearch The Hard Skills: Experience building or maintaining billing, payments, or financial systems — including working with payment processors, subscription engines, invoicing pipelines, or similar financial infrastructure in a production SaaS environment. 5+ years of hands-on experience building backend applications with PHP and Go, with a proven track record of delivering complex, high-traffic systems. Experience designing and implementing secure, scalable, and maintainable RESTful APIs in PHP and Go, with a deep understanding of API design patterns, versioning, and performance optimization. Experience in a Scrum/Agile setting. Solid understanding of security fundamentals as they apply to backend and financial systems — including secure coding practices, authentication/authorization patterns, data encryption, and awareness of current vulnerability trends (e.g. The Soft Skills - A collaborative mindset and work approach with the ability to lead projects and mentor others. Excellent communication skills, especially being able to explain technical concepts to both technical and non-technical audiences. You care about the downstream impact of what you build — not just that the code works, but that it moves the company forward. After you submit your application and it’s been reviewed by our team, we will reach out to you inviting you to meet with us. A coding challenge and white boarding exercise to show us your skillset during a live panel interview with a few team members. The Perks You’ll EnjoyRebuy is a fully remote company across the U.Remote Work: With a strong internet connection, you’re able to work from anywhere within the U.PTO: We offer a flexible vacation policy, generous holiday schedule, parental leave and sick policy. There’s other policies too like a birthday holiday! Amazing Benefits: 100% free health, dental, and insurance for you and your family. Retirement Plans: For our U.S. employees we offer 401(k) retirement plans and for our Canadian employees we offer a TFSA and RRSP retirement plans. We do not discriminate based on gender, race or color, ethnicity or national origin, age, disability, religion, sexual orientation, gender identity or expression, veteran status, or any other applicable characteristics protected by law.If you have a disability or special need that requires accommodation to navigate our website or complete the application process, email [emailprotected]. Your AI job agent finds perfect roles, helps craft tailored applications, and surfaces warm intros. Your AI job agent finds perfect roles, helps craft tailored applications, and surfaces warm intros. # Apply on Kit Job: kitjob.ca/job/2prg7q