United States of America On-site

Wells Fargo is hiring a Principal Engineer - Blockchain

About the Role

As a Principal Engineer, you will play a central role in advancing blockchain technology within a large-scale enterprise. You'll be responsible for architecting and maintaining foundational components of a custom Layer 1 blockchain, working deeply within the Cosmos SDK and Go to build secure, high-performance modules that power critical financial infrastructure.

Key Responsibilities

  • Advise senior leadership on technical strategy for distributed systems, security, and enterprise-scale technology initiatives
  • Design and implement core blockchain modules, including a role-based token factory for native asset creation
  • Develop custom logic using ABCI++ interfaces—PrepareProposal and ProcessProposal—to enhance consensus and transaction processing
  • Configure and manage blockchain networks from genesis, including validator onboarding and consensus tuning
  • Enable cross-chain interoperability through the Inter-Blockchain Communication (IBC) protocol
  • Write comprehensive test suites covering unit, integration, and end-to-end scenarios to ensure protocol integrity
  • Lead code reviews, contribute to architectural decisions, and uphold rigorous documentation standards
  • Diagnose and resolve complex issues across development, testing, and production environments

Qualifications

Required: Minimum of 7 years of engineering experience or equivalent demonstrated through professional background, education, or training. Preferred qualifications include hands-on development with the Cosmos SDK, expert-level Go proficiency, and practical knowledge of CometBFT and ABCI++. Experience launching or maintaining Cosmos-based blockchains is highly valued. Familiarity with cloud deployment of blockchain systems—particularly on GCP—is essential. Working knowledge of Rust is a plus, especially for reviewing and integrating components written in the language.

Environment and Culture

The role operates within a structured, compliance-focused organization that prioritizes risk management, operational accountability, and inclusive practices. You'll work alongside cross-functional teams in a culture that values technical excellence, proactive governance, and long-term system resilience. The organization supports accessibility and provides accommodations throughout the hiring process and employment.

Work Model

This is an onsite position, requiring presence at a designated work location to support collaboration and security protocols inherent in enterprise-grade blockchain development.

Required Skills
GoCosmos SDKCometBFTABCI/ABCI++RustGCPInter-Blockchain Communication (IBC) protocolBlockchainDistributed Systems GoCosmos SDKCometBFTABCIABCI++Inter-Blockchain Communication (IBC)GCPRUSTBlockchain DevelopmentDistributed SystemsState Machine DesignL1 Blockchain
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About company
Wells Fargo
Wells Fargo is a financial services company. The COO Technology group delivers technology solutions for the Chief Operating Office, supporting operations, control executives, strategic execution, business continuity, resiliency, data services, regulatory relations, customer experience, enterprise shared services, supply chain management, and corporate properties.
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Job Details
Department Engineering
Category backend
Posted 2 months ago