Principal Software Engineer

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.
Recognized as one of AMERICA'S MOST LOVED WORKPLACES® for five consecutive years and a Built In Best Places to Work for six years, we are committed to our 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.
Summary:
We are looking for technical team members at all levels who want to push themselves to deliver best in market SaaS solutions. We offer a challenging environment where you will have to grow, adapt and use your skills consistently. Our customers rely on us in the moments that matter. Engineering delivers on that promise.
You can read the bullets below. But they almost always look the same, right? Here is the deal - being a principle engineer here at DFIN means helping us deliver SaaS software solutions for our customers that primarily work with the SEC or other global regulating bodies. Our products are in demand because we solve regulatory problems for our customers. As a principal engineer, you'll own projects end to end, write code that others will look towards as a standard, understand how we operate our systems and make sure our technology grows and doesn't become a big pile of tech debt.
Responsibilities:

• Write concise, well‑tested, and well‑documented code that adheres to industry best practices.
• Optimize software for quality, performance, scalability, efficiency, and security through testing, code scanning, refactoring, and monitoring.
• Ensure automated tests and frameworks effectively support software quality, refactoring flexibility, and continuous integration and delivery.Design and build concurrent and asynchronous software solutions.
• Analyze real problems and deliver practical solutions, keeping the team focused on current business needs.
• Collaborate closely with product managers, developers, SREs, and engineers across experience levels and geographies to build meaningful software.
• Design systems with operability in mind, leveraging monitoring and metrics to support reliable production operation.
• Champion simplicity, reliability, manageability, scalability, extensibility, reusability, and performance.
• Use observability data to optimize latency, compute, memory, storage, and network utilization.
• Proactively identify and address technical debt, making it visible and resolving it deliberately.

Qualifications:

• Demonstrate strong ownership of personal development, product quality, and commitment to the firm.
• 8-10 years of experience designing and building scalable, data‑driven software applications and distributed systems.
• Proven experience designing service‑based and tiered web applications used by customers.
• Strong background in secure software development and willingness to participate in financial systems security practices.
• Hands‑on experience with modern full‑stack technologies, including .NET/C#, RESTful APIs, JavaScript/TypeScript, React, SQL Server, and Azure DevOps.Proficient in at least one backend language (C#, Node.js, Java, or TypeScript) with willingness to work across the stack.
• Experience with concurrency, threading, and/or asynchronous programming models.
• Solid understanding of relational databases such as SQL Server or PostgreSQL.
• Working knowledge of HTTP protocols and networking concepts.
• Experience with cloud‑native platforms and tooling, including Azure, AKS, Docker, and Kubernetes.
• Bachelor's degree in Computer Science or equivalent practical experience.

It is the policy of Donnelley Financial Solutions to select, place, and manage all its employees without discrimination based on race, color, national origin, gender, age, religion, actual or perceived disability, veteran status, actual or perceived sexual orientation, genetic information or any other protected status.
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