Senior Enterprise Architect - Security

Reporting to the Head of Architecture, the Senior Enterprise Architect works closely with the Application Development, Infrastructure, Security, Data & Analytics, and PMO teams to provide overall architecture leadership across NiSource. The Senior Enterprise Architect must possess deep technology experiences within Security to build out the architecture vision, strategy, and capability roadmap. The ideal candidate will have extensive experience envisioning and translating overall architecture with business needs via transformation roadmaps, establish target architecture and standards for the organization, building consensus, and provide guidance in the selling and execution within solution development processes of options and reuse points.

Essential Functions

Provides senior level expertise on overall direction, guidance, definition, decisions, and priorities regarding the enterprise's overall architecture to effectively support the organization business strategy.

Interact with business leaders, IT leaders, vendors and industry experts to translate business requirements, understand options to capabilities, and create architecture blueprints and high-level solution designs for the most complex architectural components of a program.

Strategy - Interfaces across several business areas, acting as a visionary to proactively assist in defining direction for future projects. Help business leaders and their teams think through the technology, business and operational implications of their technology investment decisions.

Execution - Reviews, advises, and designs standard software and hardware builds, system options, risks, costs versus benefits, and impact on the enterprise business process and goals. Be the architecture thought leader and trusted go-to partner for Product and Engineering leadership across the organization, recommending innovative solutions to improve live and new system architectures.

Operations - Facilitates the establishment and implementation of standards and reference material that guides the design of technology solutions. Lead architectural collaboration and governing processes including Architecture Review Boards, Solution Architecture reviews, exception management, and related processes.

Innovation - Responsible for researching, analyzing, designing, proposing, and delivering solutions that are appropriate for the business and technologies strategies. Tracks industry trends and maintains knowledge of new technologies to better serve the enterprise's architecture needs.

Required Qualifications for Position

• Bachelors Degree in related field or equivalent work experience
• 10+ years of relevant enterprise-wide architecture, including deep understanding of various aspects of Security capabilities listed: • Vulnerability Management • Network Security • Identity Management • Firewall Management • End Point Protection • Risk Management • Incident Response • Penetration Testing • Security Information and Event Management (SIEM) • Security Orchestration, Automation, and Response (SOAR) • Data Loss Prevention • IPS/IDS • Cloud Services • IoT / OT Security • Data Encryption (In Motion and at Rest) • Automation (DevSecOps)
• Experience within security architecture design, risk and asset management, policy and compliance, system evaluation and integration, incident response and monitoring.
• Stay updated on emerging threats, hacker methodologies, and security standards.
• Experience in directing and mentoring other architects in the team and across the organization.
• Expertise in security frameworks such as NIST, ISO 27001, etc.
• Professional certifications like CISSP, CISM are highly valued.
• Experience with on-premise solutions and cloud platforms on Azure, AWS.
• Deep knowledge of API-first design patterns
• Technology skills across multiple IT domains (e.g. application, data, infrastructure, security)
• Strong consultative skills at a cross-functional level
• Strong skills in Word, Excel, PowerPoint, and LeanIX
• Knowledge of TOGAF, ITIL, and other architecture / business process frameworks
• Experience in application development, systems management, and/or project management is a plus
• Leadership competencies in: • Organizing and Setting Priorities • Managing and Measuring Work • Peer Relationships • Continuous Improvement • Motivating Others • Self-motivated; capable of managing multiple tasks

Additional Requirements

• The preceding description is not designed to be a complete list of all duties and responsibilities required of the position.
• As a public utility, NiSource is required to provide continuous service to customers at all times. To ensure we fulfill that obligation, employees may be required to work outside their normal work hours and perform tasks outside of their normal responsibilities in support of emergency operations.

Work Authorization and Workplace Connection

• Authorized to work in the United States without requiring sponsorship.
• Value inclusion within your day to day responsibilities by respecting others perspectives/convictions, engaging others opinions, creating a safe environment where people, ideas, and opinions are valued within your Team/Customers and external partners.
• Respect the unique lived experiences within your Team/Customers and external work partners by valuing different world views, challenges, and cultures that represents all walks of life and all backgrounds.
• Treat others with respect and consideration. Actively participate in creating and contributing to a positive work environment.

Equal Employment Opportunity

NiSource is committed to providing equal employment opportunities in each of its companies to all employees and applicants for employment without regard to race, color, religion, national origin or ancestry, veteran status, disability, gender, age, marital status, sexual orientation, gender identity, sex (including pregnancy, lactation, childbirth or related medical conditions), genetic information, citizenship status, or any protected group status as defined by law. Each employee is expected to abide by this principle.

By Applying, You May Be Considered for Other Job Opportunities

ADA Accommodations

If you need a reasonable accommodation to participate in any part of the hiring process or to perform the essential functions of the position, please contact OneHR at OneHR@nisource.com or 1-888-640-3320.

Safety Statement

Promote a safe work environment by actively participating in all aspects of our employee safety program. Report any unsafe conditions and take actions to prevent personal injuries. Support our interdependent safety culture by ensuring the safety of your co-workers. Stay focused on the task at hand and promote productivity through good work habits.

E-Verify

NiSource participates in the U.S. Department of Homeland Security's E-Verify program. As part of this process, we provide the following notices to all job applicants:

• E-Verify Poster (English and Spanish)
• E-Verify Participation Poster English and Spanish
• Right to Work Poster (English and Spanish)

Salary Range

• $133,400.00 - $200,100.00
• The salary offered to a candidate is based on several factors including but not limited to the candidate's skills, job-related knowledge, and relevant experience, as well as internal pay equity.

Posting Details

• Posting Start Date: 2026-03-11
• Posting End Date (if applicable): 2026-03-31
• Please note that the job posting will close on the day before the posting end date.