Principal Engineer - Blockchain

About this role:
Wells Fargo is seeking a Principal Engineer to join Strategic Services & Advanced Technology team within Digital Technology and Innovation group. This role will have foundational ownership over the core state machine, working at the lowest levels of the stack to design, build, and maintain the modules that define our L1 Blockchain network at Wells Fargo. This is a rare opportunity to solve hard technical problems in distributed systems and blockchain research and to build open-source infrastructure that will secure significant value.
In this role, you will:

• Act as an advisor to leadership to develop or influence applications, network, information security, database, operating systems, or web technologies for highly complex business and technical needs across multiple groups
• Lead the strategy and resolution of highly complex and unique challenges requiring in-depth evaluation across multiple areas or the enterprise, delivering solutions that are long-term, large-scale and require vision, creativity, innovation, advanced analytical and inductive thinking
• Translate advanced technology experience, an in-depth knowledge of the organizations tactical and strategic business objectives, the enterprise technological environment, the organization structure, and strategic technological opportunities and requirements into technical engineering solutions
• Provide vision, direction and expertise to leadership on implementing innovative and significant business solutions
• Maintain knowledge of industry best practices and new technologies and recommends innovations that enhance operations or provide a competitive advantage to the organization
• Strategically engage with all levels of professionals and managers across the enterprise and serve as an expert advisor to leadership

Required Qualifications:

• 7+ years of Engineering experience, or equivalent demonstrated through one or a combination of the following: work experience, training, military experience, education

Desired Qualifications:

• Professional software engineering experience, with a focus on backend or distributed systems.
• Expert-level proficiency in Go.
• Demonstrable, hands-on experience developing and maintaining custom modules for the Cosmos SDK.
• Solid understanding of CometBFT consensus and the Application Blockchain Interface (ABCI/ABCI++).
• Experience in launching or contributing to a Cosmos-based blockchain network.
• Deeply committed to writing clear, maintainable, and thoroughly tested code.
• Strong experience in cloud adoption of Blockchain applications including GCP (target platforms) or similar Blockchain frameworks
• Good proficiency in RUST - Ability to understand, dissect and build services
• Build, Develop, Implement, and maintain core blockchain modules in Go using the Cosmos SDK, including a sophisticated, role-based token-factory for native asset issuance.
• Design and implement custom logic within the ABCI++ interface (Prepare-Proposal/Process-Proposal) to enable advanced features and optimizations.
• Configure, launch, and maintain our blockchain network, including genesis configuration, validator setup, and consensus parameter tuning.
• Implement and manage cross-chain functionality using the Inter-Blockchain Communication (IBC) protocol.
• Write exhaustive Unit, Integration, and End-to-End tests to guarantee the security, correctness, and performance of the core protocol.
• Participate in architectural discussions, conduct rigorous code reviews, and contribute to our high standards for technical documentation.
• Troubleshoot and resolve complex issues in our development, test, and production environments.

Job Expectations:

• Experience in development of enterprise scale banking applications will be a plus.
• Ability to negotiate, influence, and collaborate to build successful relationships.
• Knowledge and understanding of Information Technology governance risk and compliance processes such as policies, control standards, risk management concepts, or information security.

Posting End Date:
7 Mar 2026
*Job posting may come down early due to volume of applicants.
We Value Equal Opportunity
Wells Fargo is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or any other legally protected characteristic.
Employees support our focus on building strong customer relationships balanced with a strong risk mitigating and compliance-driven culture which firmly establishes those disciplines as critical to the success of our customers and company. They are accountable for execution of all applicable risk programs (Credit, Market, Financial Crimes, Operational, Regulatory Compliance), which includes effectively following and adhering to applicable Wells Fargo policies and procedures, appropriately fulfilling risk and compliance obligations, timely and effective escalation and remediation of issues, and making sound risk decisions. There is emphasis on proactive monitoring, governance, risk identification and escalation, as well as making sound risk decisions commensurate with the business unit's risk appetite and all risk and compliance program requirements.
Candidates applying to job openings posted in Canada: Applications for employment are encouraged from all qualified candidates, including women, persons with disabilities, aboriginal peoples and visible minorities. Accommodation for applicants with disabilities is available upon request in connection with the recruitment process.
Applicants with Disabilities
To request a medical accommodation during the application or interview process, visit Disability Inclusion at Wells Fargo .
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Wells Fargo maintains a drug free workplace. Please see our Drug and Alcohol Policy to learn more.
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b. Wells Fargo requires you to directly represent your own experiences during the recruiting and hiring process.