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Wells Fargo Logo Wells Fargo · IT - Software Development

Senior Specialty Protocol Engineer

United States, Iselin Employment contract 119000.00 - 224000.00 USD / Year · Job Posted May 27, 2026
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Job Description

Wells Fargo is seeking several Senior Specialty Software Developers (Protocol Engineers) to contribute to a next-generation Digital Asset Platform designed to solve the most critical challenge in institutional finance: achieving strict regulatory compliance without compromising transaction confidentiality. Wells Fargo is moving beyond standard public blockchains to build a custom, application-specific infrastructure. Our platform utilizes advanced cryptography to enable "auditable privacy"—allowing regulated institutions to settle digital assets securely while preserving strategic confidentiality, without relying on centralized intermediaries. As a Senior Protocol Engineer, you will be responsible for architecting the core settlement engine. You'll work at the intersection of distributed systems and applied cryptography, translating complex mathematical proofs into high-performance, production-grade Go code.

Job Responsibility

  • Core Protocol Development: Architect and build a custom blockchain application using Go, Cosmos SDK, and CometBFT (Tendermint)
  • Cryptographic Implementation: Implement and optimize privacy-preserving primitives, specifically Pedersen Commitments and Bulletproofs (Range Proofs), ensuring no trusted setup is required
  • Consensus Customization: Engineer custom ABCI++ extensions (specifically PrepareProposal and Vote Extensions) to implement an on-chain Multi-Party Computation (MPC) mixing network.
  • State Machine Design: Design a custom KVStore state machine that manages homomorphic encrypted balances (Elliptic Curve points) instead of plaintext integers.
  • Performance Engineering: Optimize cryptographic operations (scalar multiplication, point addition) for low latency and high throughput in a distributed environment.
  • Auditing Infrastructure: Build secure off-chain query layers and "view key" mechanisms that allow for granular, permissioned regulatory auditing.

Requirements

  • 4+ years of Specialty Software Engineering experience, or equivalent demonstrated through one or a combination of the following: work experience, training, military experience, education
  • Systems Engineering: 3+ years of experience in backend or systems programming, with expert-level proficiency in Go (Golang)
  • Applied Cryptography: 6+ months of experience with Elliptic Curve Cryptography (ECC)
  • Distributed Systems: 1+ year of experience with BFT consensus algorithms, P2P networking, and state replication

Nice to have

  • Blockchain Core: Deep experience with Cosmos SDK and CometBFT. Comfort building custom modules and modifying consensus logic, not just deploying smart contracts
  • Pedersen Commitments (Homomorphic encryption properties)
  • Zero-Knowledge Proofs (specifically Bulletproofs or Sigma protocols)
  • Math-to-Code: Demonstrated ability to read academic whitepapers/preprints and translate mathematical specifications into functioning code
  • Experience with MPC (Multi-Party Computation) or Verifiable Secret Sharing (VSS) schemes
  • Familiarity with the Ristretto255 curve or libraries like gnark-crypto
  • Background in FinTech, payment systems, or high-frequency trading platforms
  • Understanding of the Account Model vs. UTXO Model trade-offs in privacy-preserving ledgers

What we offer

  • Health benefits
  • 401(k) Plan
  • Paid time off
  • Disability benefits
  • Life insurance, critical illness insurance, and accident insurance
  • Parental leave
  • Critical caregiving leave
  • Discounts and savings
  • Commuter benefits
  • Tuition reimbursement
  • Scholarships for dependent children
  • Adoption reimbursement
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