Brandon Casci

Principal Software Engineer, Applied AI · AI Product Engineer · Rails / Elixir · Founder, prior exit
Somerville, MA - Portland, ME
https://www.brandoncasci.com
https://www.linkedin.com/in/brandoncasci/
brandon.casci@gmail.com
617-233-7597

Summary

Took an auction product from beta to GA that generated $1M+ for nonprofit customers and cut onboarding time 75%. That pattern holds across 20+ years. I walk into stalled projects and messy codebases and turn them into shipped, revenue-generating SaaS, inside enterprise teams, as a co-founder and CTO who raised $1M, and on my own with an exit. Today I build and run two live-customer products (Boswell, tracking 1.2M+ household assistances for community organizations, and Harmonic.fm), using agentic development workflows to hold delivery pace across both codebases. Deep in Ruby on Rails, Elixir, PostgreSQL, and multi-tenant, HIPAA-grade architecture, I am the low-risk hire who has already shipped the hard version of most problems a team will hand me.

Skills

Languages & Frameworks: Ruby, Rails 5-8, Elixir/Phoenix, JavaScript, React Data & Architecture: PostgreSQL, strong SQL, multi-tenant / per-tenant isolation, HIPAA-grade compliance Infra & Delivery: AWS, Docker, CI/CD, Stripe (Connect), Twilio AI-augmented delivery: multi-agent development workflows, LLM tooling integration, prompt and evaluation practices Practices: architecture & code standards, code review, mentoring, turnaround of stalled deliverables

Experience

Principal Engineer, Applied AI & Co-Founder

Apr 2024 - Present | Harmonic.fm & Boswell

• Build and run two live-customer SaaS products end to end: Boswell, a case-management platform for community organizations tracking 1.2M+ cumulative household assistances, and Harmonic.fm, a music marketplace
• Ship and maintain features across both production codebases using agentic development workflows (Claude Code, multi-agent) to hold delivery pace
• Designed multi-tenant architecture with per-tenant data isolation for compliance
• Built a Stripe Connect marketplace with automated payouts and revenue splitting

Contract Software Engineer

Apr 2024 - Jun 2025 | RiseKit

• Consolidated three React applications into a single Rails 8 platform with an AI-driven, feature-by-feature migration strategy, cutting maintenance burden and vendor sprawl for a small team
• Raised test coverage across legacy systems to make the consolidation safe
• Authored migration requirements, technical specifications, and architecture documentation

Lead Growth Engineer, Bonterra

Feb 2022 - Aug 2023 | Contract → Senior Engineer → Lead Growth Engineer

• Launched an auction product from beta to GA, generating $1M+ revenue for nonprofit customers
• Drove the transition from Sales-Led to Product-Led Growth, cutting onboarding time 75%
• Established coding standards and code review processes adopted across the engineering org
• Built a multi-channel messaging system (Email/SMS via Twilio) for real-time bidder notifications
• Held delivery discipline on a platform serving 20K enterprise customers

Principal Software Developer, CTO & Co-Founder, bosWell, Inc.

2018 - 2022

• Brought in to rescue grant-funded deliverables after the existing team stalled; performance earned the co-founder and CTO role
• Secured $1M in angel and grant funding across two product generations
• Built a HIPAA-compliant platform tracking care for hundreds of thousands of clients
• Built the engineering function from scratch: hiring process, engineering interviews, delivery cadence, and standards

Senior/Contract Software Engineer, Concierge Live

2015 - 2018

• Built features that won and retained Fortune 500 clients (Barclays, AT&T, Citrix), securing recurring contracts of $50K-$150K
• Built an Elixir integration between the ticket platform and Ticketmaster for in-app purchases and mobile ticket transfers
• Resolved performance bottlenecks and passed security audits to close enterprise deals

Contract Software Engineer, Par8o

2014 - 2015

• Built features for a HIPAA-compliant platform enabling secure medical record transfers between providers, maintaining SOC2 compliance

Principal Software Developer & Founder, LoudCity/Loudcaster

2005 - 2014

• Founded and built two SaaS products serving 1,000+ online radio broadcasters, generating $25K+ monthly revenue
• Engineered a copyright compliance system processing hundreds of millions of performances annually
• Techstars Boston 2010; lobbied Congress successfully for a Small Webcaster Settlement Act extension
• Built a live streaming platform with audio transcoding, automated provisioning, and real-time stats
• Exited to a competitor in a private transaction

Additional Experience

• T2 Modus (2016-2017) - Stabilized an automotive CRM platform for GA release
• Earlier software engineering roles (1996-2005) - See LinkedIn for details

Recommendations

Brandon is the kind of engineer that is a multiplier. He not only brings a large skill set, and a dedicated work ethic, he also works hard to make the entire team around him better. He has a strong feel for what makes more maintainable code, and can lead others to see his vision. He also pushes and prods to make any solution better. Even the most elegantly implemented solution won’t deliver results if it solves the wrong problem. Having run his own business, he understands the importance of solving the most important problem first.

—Thomas Hoen Senior VP of Product Engineering, Bonterra

Brandon is an engineer’s engineer! His technical acumen helped our team write better, product-focused code and his entrepreneurial savvy helped us deliver smarter features, faster. He’s really smart and generous with knowledge. I hope we get another chance to work together!

—Mike Subelsky Consulting Software Architect

Brandon and I were paired as the core members of the Growth team at Bonterra, and we worked together for a year on a series of pioneering projects. This was such a lucky break, because in Brandon I had a true partner in finding innovative, out-of-the-box solutions to problems that were all in a completely new area for the company, with no map, and no pre-existing norms to follow. His willingness to look at a challenge with an open mind and find well-designed ways to take pieces apart and put them back together in smart, efficient, and future-proof ways that will help us scale was exactly what we needed in a growth engineer, and his entrepreneurial spirit made for a fantastic team comradery.

—Shannon Peavey Principal Product Lead, Bonterra