Most Loved Workplace® Certified JobIT Security Senior Engineer
Most Loved Workplace® Certified JobAbout the Role
At Donnelley Financial LLC, a Most Loved Workplace® certified employer in the Software and Tech-Enabled Solutions space, Empowering global markets with confidence through compliance and innovation..
Join a dynamic team at the pulse of global markets, where we deliver innovative software and service solutions for essential financial reporting and capital markets transactions. At DFIN, we are a values-driven organization that empowers you to build a fulfilling career while bringing your authentic self to work every day. Our "Win as One" mentality ensures that our team’s success is directly linked to Client, Shareholder and Employee Satisfaction. In 2026, DFIN was named #1 on the 2026 Top 100 Global Most Loved Workplaces® by Best Practice Institute. We have also been recognized as one of America’s Most Loved Workplaces® for five consecutive years and a Built In Best Place to Work for six years, reflecting our continued commitment to supporting employees’ total well-being. Enjoy competitive compensation, a flexible workplace, comprehensive benefits, and opportunities for professional growth. Bring your passion and talents to DFIN – because being YOU thrives here.
Want to learn more about what it's like to work at Donnelley Financial LLC? View our full profile.
Requirements
- Bachelor’s degree in Computer Science, IT, or related field (preferred) or equivalent experience.
- 7–10+ years of hands-on experience in network security engineering, including cloud networking and enterprise platforms.
- CCNP/CCIE (Security or Enterprise) or equivalent experience.
- Cloud networking/security certifications (Azure preferred; AWS/GCP a plus).
- SASE/SD-WAN certifications (e.g., Zscaler) are a plus.
- Deep expertise in firewall/WAF policy architecture, routing, segmentation, and cloud networking controls.
- Proven ability to lead complex troubleshooting and incident response for high-impact events.
- Strong understanding of Zero Trust, defense-in-depth, and secure-by-design principles.
- Experience designing operationally sustainable solutions (documentation, runbooks, lifecycle management, monitoring).
- Ability to communicate complex architecture and risk decisions to both technical and business stakeholders.
- Demonstrated leadership through mentorship, technical reviews, and influence across teams.
- High ownership, judgment, and ability to prioritize under pressure.
Benefits
- Competitive compensation
- Flexible workplace
- Comprehensive benefits
- Opportunities for professional growth
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Why This Is a Most Loved Workplace® Certified Job
Systemic Collaboration
We foster a culture of growth, innovation, and continuous learning. We are committed to providing opportunities for career advancement, skill development, and professional enrichment. With strong leadership that supports collaboration and transparency, employees feel empowered to contribute their ideas and shape Donnelley Financial LLC's direction. This forward-thinking mindset, paired with a shared passion for success, motivates our team to embrace challenges and create solutions that will drive long-term impact, ensuring a bright future for both our people and Donnelley Financial LLC.
Positive Vision
We emphasize leadership behaviors rooted in collaboration, integrity, and innovation. Our leaders foster an environment of trust, transparency, and open communication, encouraging employees to contribute ideas and work together towards common goals. By promoting continuous growth, recognizing individual contributions, and empowering teams, our leadership ensures that Donnelley Financial LLC’s values are consistently reflected in daily actions. This alignment creates a culture where employees feel supported, valued, and motivated, driving both personal and company-wide success. Our values and leadership behaviors work in tandem to inspire and strengthen our workforce.
Alignment of Values
Consistently demonstrating integrity, transparency, and a commitment to collaboration. Through open communication, he fosters trust and creates an environment where all employees feel valued and empowered to contribute their ideas. By making thoughtful, people-first decisions, our CEO sets the tone for a culture that prioritizes growth and teamwork. He actively engages with employees at all levels, listening to their feedback and inspiring action, ensuring that Donnelley Financial LLC’s values are not just spoken but are practiced daily throughout the organization.
Respect
Fostering an inclusive culture through initiatives like our Employee Resource Groups (ERGs). Two newly established ERGs, Black Women Encouraging Leadership & Learning (B.W.E.L.L.) and Owning our Pride & Equality Now (Open@DFIN), join our existing ERGs, DFIN Minds and Women’s Impact Network, to bring together employees with shared interests, ensuring that diverse perspectives are represented. Additionally, our multi-generational workforce collaborates across teams, bringing a wealth of skills and life experiences to the table. Our peer-to-peer recognition platform further supports this inclusivity, allowing employees to be publicly recognized for their contributions and ideas by colleagues across the organization.
Killer Achievement
Fostering a culture of open communication and teamwork across all levels. We encourage cross-departmental partnerships that enable employees to leverage diverse perspectives and skills. Whether through virtual meetings, team-building activities, or informal connections, collaboration is at the heart of our success. Our culture of openness and mutual support empowers employees to share ideas freely, solve complex challenges together, and drive success collectively, ensuring that everyone plays an integral role in achieving our goals.
What It's Like to Work Here
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