Principal Software Architect

Principal Software Architect

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 Principal Software Architect, you will define and drive the technical vision behind CloudBlue's next-generation revenue automation platform, ensuring it can scale to support significant growth in transaction volume while maintaining high performance and reliability. You will work across teams to solve complex distributed systems challenges, design scalable architectures, and guide critical technical decisions. This role requires a hands-on leader with a strong AI mindset who can balance strategic thinking with practical implementation in a microservices-based, cloud-native SaaS environment.

What you'll do:

• Design and evolve hyper-scale systems capable of handling millions of transactions per second using advanced sharding, event-driven architectures, and high-performance caching strategies
• Lead architectural decision-making through RFC processes, ensuring scalability, reliability, and long-term maintainability
• Collaborate cross-functionally with engineering, SRE, and DevOps teams to align infrastructure with application needs
• Contribute hands-on by building proofs of concept (PoCs) for new technologies such as messaging systems or storage solutions
• Define system architecture for a microservices-based, cloud-native SaaS platform integrating APIs, relational and non-relational databases, and AI-driven workflows
• Mentor and guide senior engineers, fostering strong systems thinking, design excellence, and technical leadership across teams
• Drive innovation in AI-enabled architectures and support the evolution of intelligent, scalable platform capabilities
• Support other tasks or projects as assigned to meet team and business needs

About you:

• Proven experience scaling platforms from thousands to millions of transactions in high-growth environments
• Deep expertise in distributed systems, including eventual consistency, idempotency, and distributed tracing
• Strong architectural design experience (5-10+ years) building large-scale, high-performance systems
• Strong English communication skills, with the ability to engage effectively across all levels, from executive stakeholders to junior engineers
• Hands-on mindset with the ability to move between strategy and implementation
• Experience working in cloud-native environments with microservices architectures
• Exposure to designing billing and rating systems, particularly in consumption-based or usage-driven models would be considered a plus
• Practical experience integrating AI capabilities into production systems (e.g., APIs, intelligent workflows, or RAG-based architectures) would be a strong advantage
• Familiarity with Kubernetes, cloud infrastructure, and performance optimization at scale would be good to have

What we offer:

• Work from anywhere - this is a remote opportunity, with a primary hiring focus on candidates located within the European Union, in line with team needs and operational coverage
• 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

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.