Data Engineer Senior (Python/SQL) — Denver

Position Overview 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 Security Testing Specialist Sr within PNC's Technology Security organization, you will be based in Denver, CO; Phoenix, AZ; Birmingham, AL; Dallas, TX; Pittsburgh, PA or Cleveland, OH. An ideal candidate will have: Advanced Software Engineering & Python Development • Expertise designing and developing production-grade Python software that is modular, testable, reusable, observable, performant, and maintainable. • Strong command of software engineering principles, including separation of concerns, abstraction, modularity, dependency management, interface design, error handling, configuration management, and design patterns. • Experience maintaining and evolving long-lived production codebases, including refactoring, dependency upgrades, backward compatibility, technical debt reduction, and architectural improvements. • Strong understanding of Python dependency management, packaging, virtual environments, runtime configuration, and reproducible builds. • Strong debugging skills, including reproducing defects, analyzing logs and stack traces, inspecting runtime state, tracing execution paths, identifying root causes, and validating corrective changes. Git, Version Control & Collaborative Development • Deep expertise with Git and collaborative development workflows, including branching, pull requests, merging, rebasing, conflict resolution, cherry-picking, reverting, tagging, and release branches. • Ability to diagnose and safely recover from complex Git states and use repository history to investigate defects and changes. • Experience working in multi-developer repositories with branch protections, automated checks, coding conventions, ownership boundaries, and peer-review requirements. • Experience conducting rigorous code reviews focused on correctness, architecture, maintainability, testing, performance, and operational impact. Software Development Lifecycle, DevOps & CI/CD • Deep understanding of the complete software development lifecycle, including requirements, design, implementation, review, testing, release, deployment, monitoring, maintenance, and deprecation. • Hands-on experience maintaining CI/CD pipelines using GitHub Actions, Jenkins or comparable technologies. • Demonstrated ability to diagnose pipeline failures involving source control, dependencies, runtime environments, credentials, automated tests, artifacts, infrastructure, and deployment configuration. • Strong understanding of environment promotion across development, test, staging, and production, with appropriate separation of code, configuration, credentials, and deployable artifacts. Production Deployment, Reliability & Operational Support • Experience owning software throughout its production lifecycle, including deployment, monitoring, troubleshooting, incident response, patching, upgrades, and maintenance. • Experience planning and executing releases within controlled change windows, including readiness validation, dependency identification, implementation sequencing, rollback planning, deployment, and post-release verification. • Experience coordinating application releases with database/schema changes, configuration changes, and upstream/downstream dependencies. • Strong understanding of observability, including structured logging, operational metadata, metrics, health checks, alerting, and production diagnostics. Linux & Runtime Environments • Strong working knowledge of Linux development and production environments, including processes, filesystems, permissions, environment variables, shell tooling, networking fundamentals, resource utilization, and logging. • Experience maintaining consistent remote development environments and diagnosing differences between development, test, and production. • Ability to diagnose CPU, memory, disk, process, network, dependency, configuration, and permissions-related problems. Database Engineering & Data Modeling • Advanced experience designing, querying, and maintaining large-scale relational datasets using Oracle SQL or comparable technologies. • Strong understanding of query execution, indexing, execution plans, schema design, partitioning, and performance optimization. • Ability to diagnose database and application bottlenecks involving query design, indexing, application behavior, concurrency, data volume, or resource constraints. • Experience designing scalable data models that balance performance, maintainability, integrity, storage requirements, and downstream consumption. Data Pipelines & Processing Architecture • Experience designing and maintaining production ETL/ELT systems and data-processing frameworks, including development of custom solutions for complex requirements. • Strong understanding of incremental processing, restartability, checkpointing, retries, error handling, and recovery from partial failures. • Experience tracking pipeline execution state, failures, processing history, data lineage, and operational metadata. • Deep understanding of data quality engineering, including automated validation, reconciliation, completeness and consistency checks, and appropriate handling of invalid data. Architecture, Performance & Orchestration • Experience designing systems for reliability, scalability, maintainability, testability, performance, and operational supportability. • Strong ability to identify and eliminate CPU, memory, storage, database, concurrency, network, and I/O bottlenecks using measured evidence and profiling. • Advanced experience with workflow and data infrastructure technologies such as Cron, Apache Airflow, Apache Kafka, or comparable platforms. • Strong understanding of concurrency, parallel processing, retries, dependency management, failure isolation, and resource contention. • Understanding of scheduled, event-driven, batch, streaming, and near-real-time architectures and the tradeoffs involved in selecting among them. • Familiarity with cloud platforms, distributed processing systems, ETL technologies, object storage, and high-performance data warehousing. Technical Leadership & Engineering Practices • Experience defining and enforcing coding standards, development practices, repository conventions, testing expectations, and code-review processes. • Ability to lead technical design discussions and communicate architectural decisions, alternatives, constraints, and tradeoffs. • Proven ability to mentor engineers through software design, debugging, code review, Git workflows, testing, deployments, and production incidents. • Ability to decompose ambiguous requirements into technical components, interfaces, implementation plans, and delivery milestones. • Ability to balance engineering rigor with pragmatic delivery, meeting business objectives without introducing unnecessary complexity or avoidable technical debt. 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. Job Description • Leads in developing, supporting and implementing data solutions for multiple applications in order to meet business objectives and user requirements. Leverages technical knowledge and industry experience to design, build and maintain technology solutions. • Leads data requirement analysis and the data preparation process development for targeted data solutions. • Leads in designing and building data service infrastructure on multiple data platforms, according the workflow. • Oversees the development and implementation of data solutions for multiple applications to ensure its scalability, availability and maintainability. • Consults on data migration and transformation to ensure the accuracy and security of data solutions. PNC Employees take pride in our reputation and to continue building upon that we expect our employees to be: • Customer Focused - Knowledgeable of the values and practices that align customer needs and satisfaction as primary considerations in all business decisions and able to leverage that information in creating customized customer solutions. • Managing Risk - Assessing and effectively managing all of the risks associated with their business objectives and activities to ensure they adhere to and support PNC's Enterprise Risk Management Framework. Qualifications Successful candidates must demonstrate appropriate knowledge, skills, and abilities for a role. Listed below are skills, competencies, work experience, education, and required certifications/licensures needed to be successful in this position. Preferred Skills Big Data, Data Architecture Development, Database Management, Data Engineering, Data Governance, Data Migrations, Data Modeling, Data Pipelines, Data Warehousing (DW), Python (Programming Language), Structured Query Language (SQL) Competencies Application Delivery Process, Big Data Management and Analytics, Business Intelligence, Consulting, Data Analysis - Software, Data Architecture, Database Structures, Problem Solving, Software Development Life Cycle Work Experience Roles at this level typically require a university / college degree, with 5+ years of industry-relevant experience. Specific certifications are often required. In lieu of a degree, a comparable combination of education, job specific certification(s), and experience (including military service) may be considered. Education Bachelors Certifications No Required Certification(s) Licenses No Required License(s) Language Assessments   No Required or Preferred Language Assessments     Pay Transparency Base Salary: $91,000.00 – $185,900.00 Salaries may vary based on geographic location, market data and on individual skills, experience, and education. This role is incentive eligible with the payment based upon company, business and/or individual performance. Application Window Generally, this opening is expected to be posted for two business days from 09/14/2026, although it may be longer with business discretion. Benefits PNC offers a comprehensive range of benefits to help meet your needs now and in the future. Depending on your eligibility, options for full-time employees include: medical/prescription drug coverage (with a Health Savings Account feature), dental and vision options; employee and spouse/child life insurance; short and long-term disability protection; 401(k) with PNC match, pension and stock purchase plans; dependent care reimbursement account; back-up child/elder care; adoption, surrogacy, and doula reimbursement; educational assistance, including select programs fully paid; a robust wellness program with financial incentives. In addition, PNC generally provides the following paid time off, depending on your eligibility: maternity and/or parental leave; up to 11 paid holidays each year; 9 occasional absence days each year, unless otherwise required by law; between 15 to 25 vacation days each year, depending on career level; and years of service. To learn more about these and other programs, including benefits for full time and part-time employees, visit  pncthrive.com . Disability Accommodations Statement If an accommodation is required to participate in the application process, please contact us via email at AccommodationRequest@pnc.com . Please include “accommodation request” in the subject line title and be sure to include your name, the job ID, and your preferred method of contact in the body of the email. Emails not related to accommodation requests will not receive responses.  Applicants may also call 877-968-7762 and say "Workday" for accommodation assistance. All information provided will be kept confidential and will be used only to the extent required to provide needed reasonable accommodations. At PNC we foster an inclusive and accessible workplace.  We provide reasonable accommodations to employment applicants and qualified individuals with a disability who need an accommodation to perform the essential functions of their positions. Equal Employment Opportunity (EEO) PNC provides equal employment opportunity to qualified persons regardless of race, color, sex, religion, national origin, age, sexual orientation, gender identity, disability, veteran status, or other categories protected by law. This position is subject to the requirements of Section 19 of the Federal Deposit Insurance Act (FDIA) and, for any registered role, the Secure and Fair Enforcement for Mortgage Licensing Act of 2008 (SAFE Act) and/or the Financial Industry Regulatory Authority (FINRA), which prohibit the hiring of individuals with certain criminal history. California Residents Refer to the California Consumer Privacy Act Privacy Notice to gain understanding of how PNC may use or disclose your personal information in our hiring practices.