Def Method

About Def Method

Def Method is a New York City software consultancy founded in 2013, specializing in custom software, mobile app development, web development, and AI integration. Their Agile-first approach has earned partnerships with Walmart, Citibank, Dick's Sporting Goods, MOMA, and NYC Public Radio. They champion transparency, honest collaboration, and long-term client relationships as core principles of their delivery model.

Who Def Method Is Best For

Def Method suits organizations that want a principled, transparent software partner with proven experience alongside major brands. Their NYC roots and Agile rigor make them a natural fit for media, retail, and financial services clients who value code quality and delivery consistency. Companies building Rails or AI-powered products find their deep expertise particularly valuable.

Why Choose Def Method

Things to Consider

Def Method Services

Selected Work

Modernizing a High-Risk Derivatives Pricing Platform at Citi

Citi

Def Method de-risked critical Citi pricing workflows with an API-based Kotlin/React/TypeScript platform — eliminating stale-model risk from manually downloaded scripts and supporting 9 tools across 6 teams.

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Modernizing High-Risk Compliance Infrastructure at Paxos

Paxos

Def Method modernized Paxos compliance and settlement workflows on Ruby on Rails, replacing manual processes with automation to reduce audit, settlement, and financial exposure risk.

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Modernizing High-Risk Revenue and Reporting Systems at Orum

Orum

Def Method revamped Orum's core data and reporting systems so revenue-critical workflows could scale without stalling customers or eroding trust.

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