Protocol Engineer

**About The Company** Inversion acquires and transforms legacy businesses using blockchain technology. Backed by $26\.5M from Dragonfly and top VCs, the team builds crypto\-enabled business models that bring real\-world users on\-chain. **About The Role** Architect and implement the Inversion Chain, an Avalanche\-based L1, build core infrastructure, integrate DeFi apps, and ensure network reliability and scalability. **Responsibilities** * Architect and implement the Inversion Chain, a sovereign, Avalanche\-based L1 optimized for consumer\-scale performance, low latency, and business integration. * Build core infrastructure modules, SDKs, and developer tooling that support rapid integration of real\-world assets and applications across Inversion’s portfolio companies. * Collaborate with external issuers or partners to integrate blue\-chip DeFi applications. * Support forthcoming Inversion\-led products, such as mobile wallet and FinTech experience, providing frictionless UX comparable to top\-tier fintech apps like Nubank or Robinhood. * Contribute to validator infrastructure, tokenomics models, and interoperability frameworks that enable efficient migration of users and data from traditional systems to on\-chain environments. * Design, build, and optimize core consensus, networking, and execution layers of the Inversion Chain. * Lead development of Inversion’s initial base contracts (e.g., collecting pre\-deposits) and collaborate with external issuers or partners to integrate DeFi protocols. * Serve as the technical architect; establish best practices for code quality, security, and performance. * Develop, deploy, and maintain validator nodes, RPC infrastructure, and developer APIs to ensure network reliability and scalability. * Partner with Product Managers and leadership to align protocol development with business objectives and user adoption strategies. * Implement robust security frameworks, including cryptographic best practices, code audits, and formal verification processes. * Continuously evaluate emerging blockchain protocols, consensus mechanisms, and interoperability standards to ensure Inversion stays on the cutting edge of protocol design. **Requirements** * 4–10 years experience * Must have built and shipped customer\-facing products * Experience at top\-tier scaled crypto or fintech companies * Top\-tier academic background (nice\-to\-have) * Must be genuinely excited by Inversion’s mission * Must have crypto interest * Must be willing to work hybrid in NYC * H1B transfer welcome **Required Skills** * Avalanche experience * EVM L1/L2s * Making a chain EVM\-ready * Infra \+ chain operations * validators * nodes * indexers * cloud deployment * reliability * monitoring * security * Smart contract capability * Solidity * DeFi enablement * Security \+ authentication * wallets * accounts * middleware * pragmatic security * Systems engineering * strong systems thinking * custom infra * Fintech/payments experience * KYC/KYB * custody * settlement * distributed systems * data pipelines * production debugging * blockchain familiarity * EVM * Avalanche * Cosmos * L2s * Bridging/cross\-chain infra experience * Wormhole * LayerZero **Team members** * 7 **Salary:** 250000 \- 400000 USD **Equity:** equity, 0\.13–0\.45%