Open to opportunities

Dennis Ratter

@dennisratter

Message

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

Japan

Message

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

Senior Software Engineer

Comscore

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.

Airflow Presto Spark AWS Python Java SQL PostgreSQL Big Data

Senior Software Engineer III

Nike

Nov 2020 - Nov 2021 (1 year)

Managed projects during enterprise DevOps transitions and delivered high-scale content management systems supporting hundreds of thousands of assets while promoting cross-team collaboration.

Java Spring AWS Terraform Jenkins Docker GitHub DevOps Content Management

Senior Software Engineer III

Oracle

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.

Java MySQL REST SOAP Git Test Infrastructure Project Management

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.

Java C C++Perl Oracle MySQL Verification)Test Planning Verification

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.