Principal Engineer II – MuleSoft API Developer

Western Alliance Bank

Principal Engineer II at Western Alliance Bank responsible for leading MuleSoft API design and development efforts. Engaging with business stakeholders and ensuring secure payment processing solutions.

Posted 4/24/2026full-timePhoenix • Arizona, Ohio, Texas • 🇺🇸 United StatesLeadWebsite

Tech Stack

Tools & technologies

AzureKafkaMongoDBNoSQL

About the role

Key responsibilities & impact

Provide expert-level knowledge as the established authority in your domain
Lead large and complex design efforts supporting critical projects and solutions
Engage with project and business sponsors defining requirements and objectives of targeted solutions
Facilitate dialogue and large team activities, ensuring collaboration
Develop effective presentations and narratives for business stakeholders and IT audiences
Architect, design, and implement MuleSoft APIs for high-performance, scalable, and secure payment processing
Lead the adoption of AI-assisted API design and development using GenAI tools (e.g., MuleSoft AI, GitHub Copilot, internal LLMs)
Optimize vCore utilization for cost efficiency, resource allocation, and high availability
Develop resilient and fault-tolerant API architectures, ensuring zero-downtime deployments and disaster recovery strategies
Lead full API lifecycle management, from development and security hardening to deployment and maintenance
Implement API security best practices, including OAuth 2.0, JWT, mTLS, certificate-based authentication, and encryption standards for financial transactions
Ensure adherence to FDX (Financial Data Exchange) standards for secure financial data interoperability
Build event-driven architectures utilizing Kafka for high-throughput and low-latency transaction processing
Implement NoSQL database integration (MongoDB, Azure CosmosDB) for flexible and scalable data storage solutions
Develop observability frameworks with ELK to monitor API performance, security, and anomalies
Optimize MuleSoft worker configurations, clustering, and autoscaling strategies for CloudHub deployments
Enforce security policies and compliance controls specific to MuleSoft API gateways
Design and develop APIs using Azure API Management (APIM) to enforce consistent security, rate limiting, versioning, and lifecycle governance while enabling scalable, reusable, and well‑managed API consumption across platforms

Requirements

What you’ll need

10+ years of related experience
Bachelor's degree in related field required; Masters or MBA in related field preferred
Strong hands-on experience developing MuleSoft API's using GenAI tools
Strong hands-on experience with NoSQL
Previous leadership experience preferred
Advanced knowledge of general Financial Services or Banking is preferred
Advanced to expert knowledge of applicable regulatory and legal compliance obligations, rules and regulations, industry standards and practices
Advanced to expert experience in leading cross-functional teams and managing multiple projects simultaneously with an established expertise in one or more key domains of the bank (Deposits, Loans, Operations or Reporting)
Capable of working with regulatory partners like the CFPB, OCC and FRB through audits and collaboration efforts as situations arise
Advanced to expert familiarity with the capability model across IT and the applications and infrastructures available for engagement in solutioning across the bank to develop results that leverage existing capabilities in addition to implementing new solutions when required
Experience in the design, enhancement and compliance to all governance frameworks across the IT organization to ensure proper compliance to published procedures and standards
Expert speaking and writing communication skills
May require up to 25% travel

Benefits

Comp & perks

competitive salaries
an ownership stake in the company
medical and dental insurance
time off
a great 401k matching program
tuition assistance program
an employee volunteer program
a wellness program

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

MuleSoft APIsAI-assisted API designNoSQLOAuth 2.0JWTmTLScertificate-based authenticationencryption standardsevent-driven architecturesKafka

Soft Skills

leadershipcollaborationcommunicationpresentation skillsproject managementteam managementdialogue facilitationproblem-solvingstakeholder engagementcross-functional team leadership

Certifications

Bachelor's degreeMaster's degreeMBA