Senior Software Engineer, Billing Platform

Position Summary: With team members and customers in 39 countries around the globe, HostPapa is currently one of the fastest-growing web hosting companies with a wide range of products available. At its core, we provide individuals and small and medium-sized businesses with access to valuable tools and services critical to their online success, including a Website Builder service for making website creation an ultra-easy task for anyone. Tailored to meet every user's unique needs, our award-winning customer support, email, and cloud-based solutions keep HostPapa at the cutting edge of the web hosting industry and innovation by putting our customers first. This role focuses on CloudBlue, a HostPapa business that powers cloud commerce for many of the world’s largest service providers, including major Telcos, distributors, and MSPs. CloudBlue enables partners to monetize and manage cloud services and subscriptions at scale, combining the agility of a high-growth business with the backing of a global organization. As the Senior Software Engineer, Billing Platform , you will play a key role in designing, building, and evolving billing capabilities within our CloudBlue platform, involving complex backend logic, pricing-related data flows, and API-driven services. You’ll help embed AI into backend systems and business processes. You will be part of an international engineering team. What you’ll do Architect and operate backend services driving complex billing logic and transaction processing Develop Python-based APIs and services, leveraging AI-assisted tools to accelerate delivery and quality Own features end-to-end, from initial design and technical scoping through implementation, testing, deployment, and ongoing production support, ensuring high quality, scalability, and maintainability Drive AI adoption across the platform by identifying opportunities to integrate AI into backend services and workflows, and developing AI-powered solutions that improve automation, efficiency, and developer productivity Develop and support single-page applications (SPAs) using Vue, contributing to frontend components that enable seamless interaction with backend services and APIs Collaborate within small, cross-functional engineering teams to deliver features iteratively, contributing to design discussions, code reviews, and shared ownership of system architecture and quality Work closely with Product Managers and other CloudBlue teams to translate business requirements into technical solutions, align on priorities, and ensure successful delivery of platform capabilities Partner with your Engineering Manager on growth and career development Support other tasks or projects as assigned to meet team and business needs About you 5 years or more of professional software engineering experience, with a minimum of 3 years of hands-on Python development Hands-on experience designing and developing billing systems, including pricing logic, invoicing flows, and transaction processing Hands-on experience with AI-assisted development tools, combined with a strong interest in applying AI to solve real-world problems and streamline workflows Strong experience designing and integrating APIs Solid understanding of PostgreSQL and relational databases Experience with unit and end-to-end testing Strong communication skills in English, with the ability to collaborate effectively across cross-functional teams Experience with event streaming platforms (e.g., Kafka) and exposure to distributed systems patterns is considered a plus Familiarity with Python frameworks such as Django, DRF, or FastAPI would be beneficial Exposure to additional backend languages such as Java, Go, or Rust is an added advantage Hands-on experience integrating LLMs or AI services (e.g., OpenAI APIs, RAG) is a strong plus Recent experience with JavaScript frameworks such as Vue or React is helpful Experience with cloud platforms (AWS, Azure, or GCP), Kubernetes, and modern DevOps practices (infrastructure as code, CI/CD, monitoring, and alerting) is advantageous What we offer: Work from anywhere – this is a remote opportunity, open to candidates located within the European Union only, in line with team needs and operational requirements A competitive salary that values you and your unique skill sets Career advancement & professional development opportunities to help you reach your full potential Flexible work arrangements to support work/life balance About us: At HostPapa, we’ve been committed to providing a complete array of enterprise-grade cloud services solutions to every business owner since 2006. These services, traditionally out of reach to smaller businesses, are offered in a one-stop shop, making it quick and easy for customers to select the services they need to grow. We back these offerings with 24/7 award‑winning customer support in four languages. Our HostPapa team values diversity and inclusion. We have a friendly company culture built on trust and respect. With the acquisition of several companies into our product portfolio, we’re growing at an incredible rate and have ample opportunities for career growth. Come join our talented team of enthusiastic, hard-working, passionate, driven people engaged in meaningful, innovative work. We can’t wait to meet you! HostPapa is an equal-opportunity employer committed to diversity and inclusion. As a multicultural organization, we encourage individual achievement and recognize the strength of our diverse team. HostPapa is committed to providing accommodations for people with disabilities. If you require accommodation, please let us know, and we will work with you to meet your needs. Accommodation may be provided in all parts of the hiring process. It is anticipated that this position will be performed outside of Ontario .