Senior Software Engineer - Snailworks

Beacon Software is a permanent capital holding company which acquires and grows essential businesses. We are a profitable series B+ firm that combines great technologists, operators and M&A professionals to accelerate the scale of the ambition of the dozens of businesses we own and operate. We are supported by capital from tier-1 venture capital, crossover, and endowment investors as well as the founders of the leading technology companies from the past decade. We are growing our team in Toronto, San Francisco, and New York. Apply below. Senior Software Engineer SnailWorks is a vertical SaaS platform purpose-built for the direct mail and marketing industry. We provide real-time visibility into USPS-delivered campaigns by ingesting, translating, and enriching scan data at scale. Our customers rely on us for mission-critical tracking—outbound mail, inbound reply workflows, analytics dashboards, alerts, and Informed Delivery integration—all delivered through white-label portals and CRM-connected experiences. We serve political agencies, nonprofits, fundraising teams, and enterprise mailers who require precise timing and attribution. Many of these organizations lack structured visibility into delivery performance; SnailWorks solves that with a turnkey, operations-focused system designed for high-volume, time-sensitive campaigns. As we enter our next chapter, we are investing in technical maturity, platform scalability, and product velocity—and that’s where you come in. We are looking for a Senior Software Engineer to lead a lean, high-impact team responsible for feature delivery, platform scalability, and modernization of our core systems. You will balance hands-on development with technical leadership, helping SnailWorks evolve from a long-proven system into a more modular, resilient, and AI-accelerated platform. Key Responsibilities Lead and mentor a small engineering team, setting technical direction and elevating engineering practices. Own feature delivery end-to-end—from discovery and architecture to implementation, testing, and release. Improve the platform’s technical maturity through refactoring, automation, documentation, and observability. Scale and parallelize bulk processing jobs that handle large USPS scan ingestion workflows. Work closely with product and operations to shape roadmap priorities grounded in customer and partner needs. Introduce and champion the use of AI developer tools to increase velocity, consistency, and code quality. Contribute to architectural decisions, cloud infrastructure improvements, and performance optimization. What We’re Looking For 5+ years of professional software engineering experience. Deep expertise in C# , ASP.NET , and related Microsoft web technologies. Strong experience building and scaling production systems on Azure or AWS . Proven ability to lead small teams or act as a senior individual contributor with leadership influence. Product-centric mindset—comfortable working directly with business stakeholders and customers. Experience designing or maintaining high-throughput data processing pipelines. Strong understanding and hands-on use of AI developer tools (GitHub Copilot, ChatGPT, Claude models, etc.) to accelerate delivery. Nice To Have Experience with ETL pipelines, message queues, or bulk data orchestration. Background in modernizing legacy systems or migrating monolithic workloads. Knowledge of analytics tooling, workflow engines, or customer-facing dashboards. Why Snailworks Opportunity to influence architecture and team culture at a pivotal growth moment Profitable, stable business with strong market fit and long-term customers High autonomy, minimal bureaucracy, and clear impact on mission-critical products Our Values at Beacon Software Humility : We acknowledge that the path to getting to the right answer involves being wrong along the way. We have strong beliefs which are weakly held. We actively seek new ideas and believe we can learn from anyone at any time. Honesty