Software Engineer Principal Sr (.Net Full Stack)

Software Engineer Principal Sr

At PNC, our people are our greatest differentiator and competitive advantage in the markets we serve. We are all united in delivering the best experience for our customers. We work together each day to foster an inclusive workplace culture where all of our employees feel respected, valued and have an opportunity to contribute to the company's success. As a Software Engineer Principal Sr within PNC's C&IB Midland organization, you will be based in Pittsburgh, PA or Dallas, TX or Overland Park, Kansas or Littlerock, AK.

We are seeking a strong Senior Software Engineer Principal to contribute to the design, development, and evolution of enterprise grade.NET applications. This role is hands on and delivery focused, with responsibility for influencing architecture within a defined domain rather than owning enterprise wide strategy. The ideal candidate is a strong senior engineer who can operate at an architectural level when needed—designing scalable services, modernizing legacy components, and guiding teams through technical decisions—while remaining actively involved in implementation. You will collaborate closely with architects, product owners, and engineering leadership to ensure solutions are robust, secure, and aligned with business needs.

Key Responsibilities

• Technical Design & Development
• Design and implement scalable, resilient application components using.NET and modern frameworks.
• Contribute to service oriented and microservices based architectures, applying sound design principles and patterns.
• Develop and maintain RESTful APIs, with clear documentation using Swagger/OpenAPI.
• Participate in legacy modernization efforts, including refactoring, incremental decomposition, and integration with newer services.
• Platform & Engineering Practices
• Build and support containerized services using Docker, and collaborate with platform teams on orchestration and deployment patterns.
• Contribute to CI/CD pipelines (Jenkins, uDeploy, or equivalent), incorporating automated testing and security checks.
• Support event driven integrations using Kafka (or similar technologies).
• Work with relational and NoSQL data stores (including MongoDB or equivalent) to support scalable application designs.
• Collaboration & Technical Leadership
• Act as a technical leader within the team, providing guidance on design decisions, code quality, and best practices.
• Mentor mid level and junior engineers through code reviews, design discussions, and day to day collaboration.
• Partner with QA and support teams to ensure performance, reliability, and operational readiness.
• Communicate technical designs and tradeoffs clearly to peers, product owners, and engineering leadership.
• Operational Excellence
• Contribute to monitoring, logging, and observability solutions.
• Participate in production support, root cause analysis, and continuous improvement efforts.
• Apply secure coding practices and performance optimization techniques consistently.

Required Skills & Experience

Extensive hands on experience in .NET development within enterprise environments. Proven experience designing and building distributed or service based systems. Strong understanding of application architecture, design patterns, and integration strategies. Practical experience with Docker and CI/CD tooling (Jenkins, uDeploy, Azure DevOps, etc.). Experience with event streaming platforms (Kafka or similar) and NoSQL data stores. Solid grasp of software security, performance tuning, and scalability considerations. Demonstrated ability to work effectively with product owners, business analysts, and peer engineering teams. Strong problem solving skills and a proactive, delivery oriented mindset. Clear written and verbal communication skills for technical audiences. Experience with Kubernetes or other container orchestration platforms, on- or off-premises. Familiarity with Agile/Scrum practices and tools such as Jira or Azure DevOps.

Preferred Qualifications

Experience deploying applications to cloud environments (Azure, AWS, or GCP). Experience supporting multi tenant systems or shared enterprise platforms. Understanding of enterprise compliance and data governance considerations. Prior experience contributing to API standards or shared platform components.

Certifications (Nice to Have, Not Required)

Microsoft Certified: Azure Developer or Solutions Architect (Associate or Expert) Kubernetes fundamentals or CKA (optional) Agile or Scrum certifications

PNC Culture

PNC is an in-office company that fosters a supportive culture where employees can thrive and achieve balance. We encourage candidates to connect with their recruiter and hiring manager to understand workplace expectations and ensure the role aligns with their goals. PNC will not provide sponsorship for employment visas or participate in STEM OPT for this position.