Finanity

Financial Management Mentor

Blubird

Head of Partnerships

CloneCast

Head of Operations

Yuga Labs

Private Investor

🎮 Utopian Game Labs 🎮

Investment Advisor

Alphabit

CEO of Metaversus post pandemic raise under the leadership of Alphabit. Interim CTO of Gamifi. Working alongside Investment Strategies for one of Europe's leading venture capitalist firms.

Investment Analyst and Business Development 

Blockchain Consultant

Techstars

Startup Mentor Web3

GamiFi.gg

Contracted sprint. From day 1 to help with the technical aspects and development of the platform up to market launch.

Interim Chief Technology Officer

AnRKey X

Contracted role to support the technical and operational aspects of the business. Great success and record breaking returns.

Interim General Manager

Leader in Growth & Operations | Career Break

Tim Rainer is a dynamic operations and strategy leader with over 15 years of experience in emerging technologies, SaaS, investments, and startups across Europe. Renowned for securing $20M+ in funding and scaling startups to multimillion-dollar valuations, he excels in driving strategic partnerships, optimizing processes, and delivering data-driven growth. With expertise in Web3, AI, and blockchain, Tim has worked directly with initiatives like tokenizing $54 billion in real-world assets at Blubird and mentoring EU startups to secure $3M+ in funding. His hands-on leadership and innovative approach consistently transform operations and accelerate business success.

Tim R.

ASRC Federal

Principal Software Engineer (Senior Software Engineer III)

South Hills School of Business & Technology

Empowered students with the skills to excel in data management, data engineering, database design. create and manage relational databases, query data, and perform complex analysis for real-world applications. 

Key Topics Taught:

- Introduction to SQL: Basic Syntax and Query Structure
- Advanced SQL Queries: Joins, Subqueries, and Unions
- Data Manipulation: INSERT, UPDATE, DELETE, and SELECT statements
- Aggregation and Grouping: COUNT, SUM, AVG, MIN, MAX, and GROUP BY
- Database Design: Normalization, Primary & Foreign Keys
- Data Filtering and Sorting: WHERE, LIKE, ORDER BY
- Subqueries and Nested Queries
- Indexing, Views, and Stored Procedures
- SQL Performance Optimization and Query Tuning
- Data Integrity and Security Best Practices

Classroom Duties & Responsibilities:

- Develop and deliver comprehensive course materials, including lectures, assignments, and hands-on exercises
- Facilitate interactive classroom discussions to foster engagement and critical thinking
- Provide real-time guidance and support to students, troubleshooting issues and answering SQL-related questions
- Assess and grade student performance, providing constructive feedback on assignments and exams
- Design and administer quizzes, exams, and projects to evaluate student understanding and proficiency
- Provide one-on-one tutoring and mentoring to help students master SQL concepts

Instructor

Cyanna Education Services

Developed individual coursework and full curriculum for computer science departments at accredited universities, covering the following topics:

- Introduction to Unix Development (Full Course Creation and Design)

- C Code Exploits and Countermeasures
- C Language Vulnerabilities and Mitigation
- Reverse Engineering Programs in Unix with C
- Secure Memory Allocation with malloc and free in C
- Mitigating Memory Corruption Vulnerabilities in C
- Handling Page Faults and Memory Access Violations in C
- Systems programming for Unix on Linux
- Bash Scripting
- Basic Git
- Regular Expressions
- Advanced Regular Expressions
- The C Application Life-Cycle

Unix and Linux System Programming Subject Matter Expert and Instructional Designer 

Booz Allen Hamilton

Technical Lead

Lockheed Martin

Lockheed Martin Corporation is an American aerospace, arms, defense, information security, and technology corporation

Software Engineer

Siemens Digital Industries Software

Siemens Digital Industries is an innovation and technology leader in industrial automation and digitalization. In close cooperation with our partners and customers, we are the driving force for the digital transformation in the discrete and process industries.

Raytheon

Software Engineer II

- Raytheon IIS Innovation Advocate
- Raytheon Six Sigma Specialist Certification
- Author and Inventors Award 2017
- Presenter at 2018 Systems Engineering and Architecture Technology Network Technical Symposium

Software Engineer II

Visa

CardinalCommerce is a wholly owned subsidiary of Visa and is the global leader in enabling authenticated payments, secure transactions and alternative payment brands. David Kolesar helped support this mission as a software engineer on the team that designs, writes, tests, and deploys the back end code of these systems. While employed at CardinalCommerce, David has written complete services end-to-end using test driven development principles.

Millersville University

David Kolesar tutored undergraduate and graduate students in Propositional Logic, Statistics,  Experimental Design, Computer Science, Creative Writing, Psychology, Philosophy, Philosophy of Religion, and Sociology. 

He has experience teaching individuals and small classrooms. Moreover, David has taught students from diverse backgrounds from over 4 different universities.

University / Private Tutor

United States Army

David Kolesar served his country honorably as a soldier in Alpha Company 1/37 AR 1-1 AD. He received training as an 11B (light infantry),  but also had specialized education on military intelligence, armory, and Bradley Fighting Vehicles. Decorations include National Defense Service Medal, Global War on Terrorism Service Medal, and Army Service Ribbon.

taplio

The Battle

Tim R.

David Kolesar

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