Senior Software Development Engineer (SDET)

Senior Software Development Engineer (SDET) Donnelley Financial, LLC United States, Maryland, Rockville 11200 Rockville Pike (Show on map) Mar 09, 2026

Description:

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. Recognizedas one of

AMERICA'S MOST LOVED WORKPLACES

for five consecutive years and aBuilt 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 seeking a highly skilled Senior Software Development Engineer in Test (Senior SDET) to provide technical leadership for quality engineering across our enterprise SaaS platforms. This role is responsible for defining and driving test strategy, automation frameworks, and quality standards across multiple development teams while remaining hands-on in critical areas of test automation. The Senior SDET partners closely with Engineering and Product stakeholders to ensure scalable, reliable, and compliant software delivery in highly regulated environments. This role emphasizes leadership, strategy, and cross-team influence, with execution serving quality outcomes.

Responsibilities:

Drive QA and test strategy across multiple Agile development teams

• Own test scope, coverage, and traceability back to requirements and acceptance criteria
• Identify quality risks in system architecture and design; define mitigation strategies
• Ensure test execution supports a production release cadence without compromising quality
• Enforce QA standards, tools, and best practices across teams
• Drive automation coverage across integration, regression, smoke, performance, load and migration testing.
• Ensure automation is fully integrated into CI/CD pipelines
• Translate high-value manual test scenarios into scalable automated tests
• Review and refactor existing automation to maintain framework standards and efficiency Perform hands-on automation and targeted manual testing where risk is highest
• Conduct root cause analysis of defects and partner with development teams on resolution
• Actively participate in Agile ceremonies including stand-ups, backlog grooming, and planning
• Be a thought leader to lead distributed and remote QA partners
• Continuously identify opportunities to improve coverage, execution speed, and reliability
• Identify challenges in the processes and propose solutions to improve

Qualifications:

• 7+ years of experience in software quality engineering with strong automation focus
• 4+ years of hands-on experience with Typescript and Playwright as well as Java and Selenium
• Proven experience driving test strategy and automation across multiple teams
• Strong understanding of QA methodologies, SDLC, and Agile practices
• Experience validating complex, distributed, enterprise-scale systems
• Solid understanding of object-oriented design principles and test architecture
• Bachelor's degree in Computer Science, Engineering, or equivalent professional experience Preferred Qualifications
• Experience with performance and load testing
• Experience with CI/CD and DevOps tooling
• Prior experience leading or mentoring QA teams
• Strong communication, leadership, and problem-solving skills 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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