Looks like you have JavaScript disabled. For the full Twine experience, you will need to re-enable it.

I am a technically skilled, team-focused engineer with a track record across software engineering, project management, cybersecurity, and data science. I excel at problem-based learning, quickly mastering new concepts, and delivering customer-focused results. I am seeking part-time or contract opportunities to broaden my technical skills and contribute to challenging projects. In my roles at Sandia National Laboratories and Cisco, I have balanced hands-on development with strategic leadership, mentoring colleagues, and driving data-driven improvements. I value collaborative problem solving, measurable outcomes, and ongoing learning to stay ahead in a rapidly evolving tech landscape.…I am a technically skilled, team-focused engineer with a track record across software engineering, project management, cybersecurity, and data science. I excel at problem-based learning, quickly mastering new concepts, and delivering customer-focused results. I am seeking part-time or contract opportunities to broaden my technical skills and contribute to challenging projects. In my roles at Sandia National Laboratories and Cisco, I have balanced hands-on development with strategic leadership, mentoring colleagues, and driving data-driven improvements. I value collaborative problem solving, measurable outcomes, and ongoing learning to stay ahead in a rapidly evolving tech landscape.

Lee Klimek, Jr.

Data Scientist, Programmer, Project Manager, +6





I am a technically skilled, team-focused engineer with a track record across software engineering, project management, cybersecurity, and data science. I excel at problem-based learning, quickly mastering new concepts, and delivering customer-focused results. I am seeking part-time or contract opportunities to broaden my technical skills and contribute to challenging projects. In my roles at Sandia National Laboratories and Cisco, I have balanced hands-on development with strategic leadership, mentoring colleagues, and driving data-driven improvements. I value collaborative problem solving, measurable outcomes, and ongoing learning to stay ahead in a rapidly evolving tech landscape.…I am a technically skilled, team-focused engineer with a track record across software engineering, project management, cybersecurity, and data science. I excel at problem-based learning, quickly mastering new concepts, and delivering customer-focused results. I am seeking part-time or contract opportunities to broaden my technical skills and contribute to challenging projects. In my roles at Sandia National Laboratories and Cisco, I have balanced hands-on development with strategic leadership, mentoring colleagues, and driving data-driven improvements. I value collaborative problem solving, measurable outcomes, and ongoing learning to stay ahead in a rapidly evolving tech landscape.

Available to hire

I am a technically skilled, team-focused engineer with a track record across software engineering, project management, cybersecurity, and data science. I excel at problem-based learning, quickly mastering new concepts, and delivering customer-focused results. I am seeking part-time or contract opportunities to broaden my technical skills and contribute to challenging projects.

In my roles at Sandia National Laboratories and Cisco, I have balanced hands-on development with strategic leadership, mentoring colleagues, and driving data-driven improvements. I value collaborative problem solving, measurable outcomes, and ongoing learning to stay ahead in a rapidly evolving tech landscape.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Fluent

Work Experience

Principal Investigator – Legacy Java-based Testbed Software at Sandia National Laboratories

February 1, 2022 - October 31, 2025

Led defect fixes, drove new work, mentored team members, and maintained positive customer relations for a legacy Java-based testbed software package. Modernized the package by merging two divergent product lines, and contributed to a Python-based project focused on performative and scientific computing. Demonstrated strong capabilities in code optimization, problem solving, and stakeholder communication.

Data Scientist at Cisco Systems

February 1, 2022 - February 1, 2022

Led original research leveraging Data Mining and Machine Learning to develop a tool predicting unanticipated defects in products under evaluation. Served as subject-matter expert for departmental metrics, centralized and normalized organizational data, and introduced regular research incubator meetings. Built a time-series model to predict quarterly metrics and mentored colleagues.

Lead Organizer, Cisco Offensive Security Summit at Cisco Systems

February 1, 2022 - February 1, 2022

Owned planning, budgeting, submission reviews, recruitment of leaders and volunteers, event communications, and logistics for an internally hosted security conference drawing over 150 attendees. The Summit ran for 9 years under leadership and continues to this day.

Project Manager at Cisco Systems

December 31, 2018 - December 31, 2018

Introduced and integrated project & portfolio management into department operations, doubling the number of concurrent projects and reducing the time between projects from 2+ months to 2-3 weeks. Managed multiple research projects and security engagements, coaching teams to handle uncertainty.

Software Engineer at Cisco Systems

December 31, 2010 - December 31, 2010

Led development teams to architect, design, implement, and test static analysis tooling in C, PPC Assembly, Java, and Ruby; defined requirements and acceptance criteria for projects and contributed to vulnerability discovery.

Subject Matter Expert – Media Player at Motorola

December 31, 2007 - December 31, 2007

Analyzed and resolved defects, evaluated new features for marketing teams, designed and implemented solutions, and maintained the integrity of the Media Player application. Led defect triage efforts for multiple product lines and coordinated across international sites.

Graduate Assistant / Teaching Assistant / Research Assistant at Mississippi State University

May 1, 2000 - May 1, 2000

Graduate assistant; Teaching Assistant for Intro to Computer Science (C++); Research Assistant studying Bayesian Networks and Kohonen Self-Organizing Maps; used a custom Genetic Algorithm to optimize parameters for a USDA cotton plant model (C++).

Principal Investigator at Sandia National Laboratories

February 1, 2022 - October 31, 2025

Principal Investigator for a legacy Java-based testbed software package; regularly fixing defects, driving new work, mentoring team members, and maintaining positive relationships with customers and end-users. Led efforts to modernize the package by merging two diverging product lines separated five years ago. Contributed to a Python-based project focused on performative and scientific computing; demonstrated experience in both code optimization and solving difficult problems.

Subject Matter Expert, Media Player at Motorola

December 31, 2007 - December 31, 2007

Analyzed and resolved defects, evaluated new features, designed and implemented solutions, developed feature test plans, participated in code inspections, and led defect triage handling of 100+ defects per week. Managed cross-site defect correction for multiple product lines and led a multisite team in new feature development; improved defect debugging by integrating data logging.