Skip to content
Brandon Casci

Brandon Casci

Principal Engineer & Co-Founder at Harmonic.fm & Boswell

I ship production software with cross-functional teams. 20+ years building SaaS products. One successful exit. Currently achieving 5x productivity gains through AI-augmented workflows.

Work History

  • Principal Engineer & Co-Founder
    at Harmonic.fm & Boswell
    Apr 2024 – Present
    Highlights
    • Building two SaaS platforms: music marketplace (Harmonic.fm) and CBO management system (Boswell)
    • Achieved 5x productivity gains using AI development tools and systematic documentation
    • Implemented multi-tenant architecture with per-tenant data isolation for compliance
    • Built Stripe Connect marketplace with automated payouts and revenue splitting
    • Tech stack: Rails 8, PostgreSQL, Stripe, AWS, AI tools (Claude Code)


  • Contract Software Engineer
    at RiseKit
    Apr 2024 – Jun 2025
    Highlights
    • Planned migration from multiple React applications to single Rails 8 platform
    • Added missing test coverage to legacy systems
    • Used AI tools to understand and document unfamiliar codebases
    • Wrote migration requirements and technical specifications
    • Reduced maintenance overhead by consolidating applications


  • Voluntary Learning Sabbatical
    Sep 2023 – Apr 2024
    Highlights
    • Completed 300+ hours of coursework in LLM, ML, and Python technologies
    • Soft-launched CBO Flow for community based organizations


  • Lead Growth Engineer
    at Bonterra
    Jan 2023 – Aug 2023
    Highlights
    • Led transition from Sales-Led to Product-Led Growth, enabling self-service signup and reducing onboarding time by 75%
    • Increased conversion rates through A/B testing of signup flows and payment optimization
    • Mentored engineering team while collaborating with marketing, sales, and finance on growth initiatives
    • Supported platform serving 20K enterprise customers
    • Tech stack: Ruby on Rails, AWS, PostgreSQL, JavaScript, third-party payment APIs


  • Senior Software Engineer
    at Bonterra
    Apr 2022 – Dec 2022
    Highlights
    • Launched auction product from beta to GA, generating $1M+ revenue for non-profit customers
    • Built multi-channel messaging system (Email/SMS via Twilio) for real-time bidder notifications
    • Established team coding standards and review processes
    • Promoted to Lead Growth Engineer after 8 months for technical contributions and leadership
    • Tech stack: Ruby on Rails, AWS, PostgreSQL, Twilio, asynchronous job processing


  • Principal Software Developer, CTO & Co-founder
    at bosWell, Inc.
    Jul 2018 – Oct 2022
    Highlights
    • Resolved critical technical issues to secure co-founder position and meet grant compliance requirements
    • Led development of two SaaS product generations, securing $1M in angel and grant funding
    • Built HIPAA-compliant platform enabling CBOs to track care for hundreds of thousands of clients
    • Established technical hiring process and conducted engineering interviews
    • Drove organic growth through direct marketing and vendor partnerships
    • Tech stack: Ruby on Rails, PostgreSQL, Docker, distributed systems


  • Contract Software Engineer
    at Bonterra
    Feb 2022 – Apr 2022
    Highlights
    • Built core features for auction platform MVP approaching beta release
    • Refactored legacy codebase and improved developer onboarding documentation
    • Delivered strong enough results to earn full-time Senior Engineer offer


  • Contract Software Engineer
    at Concierge Live
    Aug 2017 – Sep 2018
    Highlights
    • Returned to build Elixir-based integration between ticket management system and Ticketmaster, enabling in-app purchases and mobile ticket transfers
    • Implemented Phoenix contexts and boundaries for maintainable architecture
    • Debugged critical issues and conducted code reviews that improved product stability
    • Tech stack: Ruby on Rails, Elixir, Phoenix, PostgreSQL, Docker


  • Senior Software Engineer
    at Concierge Live
    May 2015 – Feb 2017
    Highlights
    • Built features that acquired and retained Fortune 500 clients (Barclays, AT&T, Citrix) for corporate event ticketing, securing recurring contracts of $50K-$150K
    • Migrated customers from competitor platforms, increasing revenue and satisfaction
    • Resolved performance bottlenecks and passed security audits to close enterprise deals
    • Tech stack: Ruby on Rails, PostgreSQL, JavaScript, background job processing, third-party APIs


  • Contract Software Engineer
    at T2 Modus
    Nov 2016 – Jan 2017
    Highlights
    • Stabilized automotive CRM platform for general availability release
    • Built data-driven outreach system that triggered dealership workflows at optimal times
    • Fixed reporting bugs that blocked dealership insights into sales pipeline
    • Tech stack: Ruby on Rails, PostgreSQL, MySQL, Angular


  • Contract Software Engineer
    at Par8o
    Sep 2014 – Apr 2015
    Highlights
    • Built features for HIPAA-compliant platform enabling secure medical record transfers between healthcare providers
    • Fixed critical bugs to maintain SOC2 compliance and platform stability
    • Tech stack: Ruby on Rails, PostgreSQL, Angular


  • Career Break
    Mar 2014 – Aug 2014
    Highlights
    • Evaluated next steps after successfully exiting Loudcaster and LoudCity


  • Principal Software Developer & Founder
    at LoudCity/Loudcaster
    Nov 2005 – Feb 2014
    Highlights
    • Built two SaaS products serving 1,000+ online radio broadcasters, generating $25K+ monthly revenue
    • Engineered copyright compliance system processing hundreds of millions of performances annually
    • Participated in Techstars Boston 2010 accelerator program
    • Lobbied Congress successfully for Small Webcaster Settlement Act extension
    • Built live streaming platform with audio transcoding, automated provisioning, and real-time stats
    • Successfully exited to competitor in private transaction
    • Tech stack: Ruby on Rails, PostgreSQL, Linux, distributed systems, asynchronous processing


  • Various Software Engineering Roles
    Oct 1996 – Oct 2005
    Highlights
    • See LinkedIn for more details

What Colleagues Say

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 wonʼt 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 engineerʼs engineer! His technical acumen helped our team write better, product-focused code and his entrepreneurial savvy helped us deliver smarter features, faster. Heʼs 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

Q&A