Senior Software Developer (Full Stack)

What You’ll Be Working On As a Senior Backend Software Engineer, you’ll play a critical role in designing and scaling the systems that power CoHost’s most data-intensive and AI-driven products. You’ll work closely with the CTO, product, and data teams to build reliable, cost-efficient, and observable backend infrastructure that supports real customer workflows. This is a hands‑on role focused on production systems, data pipelines, and AI‑enabled features, not prototypes or demos. What Your Role Will Encompass In this role, you will: Design, build, and maintain backend systems that support data-heavy, customer-facing products Build and maintain event pipelines, rollups, and ETL processes for analytics, attribution, and reporting Work with PostgreSQL, SingleStore, and DynamoDB, designing schemas and queries optimized for scale and performance Develop systems that power dashboards, metrics, analytics, and tracking used by customers daily Build and operate cloud infrastructure on AWS, including networking, IAM, VPCs, queues, workers, and storage Make thoughtful trade-offs around cost, reliability, observability, and performance Implement monitoring, alerting, and logging to ensure production systems are healthy and debuggable Build AI-powered features using LLMs for real workflows such as automation, classification, retrieval, and analysis Work with embeddings, retrieval pipelines, and AI-driven automation, knowing when and where AI meaningfully adds leverage Collaborate closely with product to translate business goals into scalable technical solutions Take ownership of systems end-to-end, from architecture through production support Databases SingleStore DynamoDB Event-driven architectures Rollups, ETL, and analytics pipelines AWS (networking, IAM, VPCs, queues, workers, storage) Emphasis on cost efficiency, reliability, and observability AI LLM-powered workflows Embeddings, retrieval, classification, and automation Who You Are Must-Have Experience Has managed production environments and understands operational responsibility Has built features actively used in production by real customers Strong experience building production features on top of AWS products Deep, hands-on knowledge of AWS IAM, VPCs, subnets, server architecture, and cloud security Experience designing and operating secure, scalable AWS-based systems Prior experience scaling systems to support growing data volume, traffic, and customer usage Strong backend engineering experience with data-heavy systems Experience leveraging cloud infrastructure to solve real business problems, not just deploy services Deep understanding of relational and non-relational databases Strong debugging skills and comfort level operating systems in production Nice-to-Haves Startup experience Experience working on analytics, attribution, or measurement systems Prior experience shipping AI-powered features beyond experimentation How We Work We care deeply about reliability, cost awareness, and long-term maintainability We build products that customers rely on every day We focus on impact, ownership, and clear communication Location & Timing Remote role Must be able to work EST hours Start date: As soon as possible Salary Range: $110,000-$135,000 CAD annually depending on experience Competitive salary and compensation package Full medical and dental benefits Generous vacation policy (starting at 5+ weeks) Opportunities for learning, growth, and ownership Quarterly team events #J-18808-Ljbffr