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Dennis Ratter

@dennisratter

Experienced project manager and senior software engineer with 20+ years in big data and infrastructure.

Japan
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What I'm looking for

I am seeking senior technical leadership roles that combine software engineering and project management to modernize systems, mentor teams, and deliver complex, high-impact projects.

I am a seasoned senior software engineer and project manager with over 20 years delivering large-scale software, IT infrastructure, and big data systems across global enterprises. I combine deep technical expertise with proven leadership to drive projects to on-time, under-budget delivery.

Throughout my career I've led modernization of critical big data pipelines, managed enterprise DevOps transitions, and acted as interim senior leadership to plan and deliver complex programs. I have a strong track record in vendor and budget management, stakeholder communication, and maintaining high delivery standards.

Technically, I am proficient in Java, Python, C/C++, SQL, and a wide range of tools including AWS, Terraform, Jenkins, Docker, Airflow, Spark, and Presto. I have driven cost reductions in procurement, implemented CI/CD and DevOps practices, and mentored engineering teams to improve practices and knowledge sharing.

I value pragmatic process improvement, clear technical documentation, and collaborative team cultures where cross-functional teams can deliver resilient systems at scale. I am motivated to join organizations that need experienced technical leadership to modernize systems and accelerate delivery.

Experience

Work history, roles, and key accomplishments

Comscore logoCO

Senior Software Engineer

Nov 2020 - Oct 2024 (3 years 11 months)

Led modernization and maintenance of critical big data pipelines, improved reliability through documentation and root-cause analysis, and mentored engineers to share technical knowledge.

Oracle logoOR

Senior Software Engineer III

Feb 2010 - Jul 2020 (10 years 5 months)

Acted as interim manager and led project planning and delivery for mission-critical applications, directed multi-million-dollar test infrastructure procurement reducing costs by 65%, and maintained a 100% on-time delivery record for 10+ projects.

SM

Senior Software Engineer

Sun Microsystems

Dec 1999 - Feb 2010 (10 years 2 months)

Coordinated cross-site engineering support and led verification and test planning for enterprise server systems, overseeing change control and acting as engineering liaison.

IS

Lead NPI Software Engineer

Integrated Measurement Systems

Jun 1993 - Dec 1999 (6 years 6 months)

Managed a 10-person engineering team to build GUI test harnesses for ATE systems, led architectural decisions and backend development, and implemented access control and environment-specific configurations.

Education

Degrees, certifications, and relevant coursework

DN

Dennis Ratter Nagoya

Education entry listed as Dennis Ratter Nagoya in Aichi; no degree, dates, or field provided.

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Dennis Ratter - Senior Software Engineer - Comscore | Himalayas