OST Executive and Leadership Team

June, 2026

Leadership Overview

OST has 7 executives leading key functions including strategy, finance, technology, and operations.

Driven by technical expertise and strategic advisory, OST empowers organizations to overcome complex challenges through comprehensive technology solutions and consulting services, impacting government agencies, private enterprises, and research institutions.

Leadership Roles at OST

  • Chief Executive Officer - Marcus Collier
  • Manager, Commercial & Chief Executive Officer - Jose S.
  • Chief Executive Officer & Editor & Chief - Michael Naumenko
  • Chief Executive Officer & Founder - Mete Çetiner
  • Founder & Chief Executive Officer - Olaf Stuehr
  • Chief Financial Officer - James Bottorff
  • Principal & Amp. Chief Financial Officer - Anil Chaudhry
  • Chief Technology Officer - Ivan Marakov
  • Deputy Associate Chief Information Officer - Yolanda Montoya
  • Drh - Zoundi Raphael
  • Marcus Collier - Chief Executive Officer

    Marcus Collier, the Chief Executive Officer at OST, directs the overarching corporate strategy and operational execution. Collier guides the firm's expansion across diverse sectors, ensuring alignment with the company's mission to deliver comprehensive technology solutions and consulting services. This leadership involves fostering innovation and maintaining the high standards of technical expertise and strategic advisory that define OST's practice. The Chief Executive Officer's role is central to navigating complex client requirements and market dynamics, particularly within government agencies and private enterprises. Marcus Collier's focus remains on driving sustainable growth and enhancing the company's reputation for addressing sophisticated technical and operational challenges. The executive's mandate includes cultivating strong client relationships and ensuring the delivery of impactful solutions that meet specific operational needs and long-term objectives.

    Jose S. - Manager, Commercial & Chief Executive Officer

    Jose S., the Manager, Commercial & Chief Executive Officer at OST, spearheads commercial strategy and business development initiatives. This executive drives revenue growth and market penetration by identifying new opportunities and strengthening client partnerships across various industries. The role encompasses managing commercial operations and ensuring that OST's technology solutions and consulting services effectively meet market demands. Jose S. works to translate client needs into actionable strategies, leveraging the company's expertise in management consulting, information technology, and infrastructure development. The Chief Executive Officer's responsibilities include fostering a client-centric approach, ensuring that OST's offerings provide significant value and address complex operational challenges. This leadership position is critical for expanding OST's footprint and solidifying its market position through strategic commercial engagement.

    Michael Naumenko - Chief Executive Officer & Editor & Chief

    Michael Naumenko, the Chief Executive Officer & Editor & Chief at OST, directs both the company's strategic vision and its editorial direction. This dual role emphasizes the integration of thought leadership with operational excellence, ensuring that OST's technology solutions and consulting services are informed by cutting-edge insights and industry analysis. Naumenko oversees the development and dissemination of key company communications and strategic content, aligning them with the firm's core business objectives. The Chief Executive Officer's responsibilities include guiding the company's overall direction, fostering innovation, and ensuring the delivery of high-quality services to clients across sectors. Michael Naumenko's leadership ensures that OST remains at the forefront of technical expertise and strategic advisory, effectively addressing complex operational and technological challenges for government agencies and private enterprises.

    Mete Çetiner - Chief Executive Officer & Founder

    Mete Çetiner, the Chief Executive Officer & Founder at OST, establishes and champions the company's foundational vision and strategic direction. Çetiner's leadership guides OST's comprehensive technology solutions and consulting services, ensuring adherence to the core principles of technical expertise and strategic advisory. The Founder's role involves setting the long-term trajectory for the firm, fostering innovation, and cultivating a culture that addresses complex operational and technological challenges. Mete Çetiner oversees key initiatives that drive client success across government agencies, private enterprises, and research institutions. The Chief Executive Officer's focus is on maintaining OST's commitment to understanding client contexts deeply and delivering tailored solutions that align with specific operational requirements and long-term objectives, reinforcing the company's established credibility.

    Olaf Stuehr - Founder & Chief Executive Officer

    Olaf Stuehr, the Founder & Chief Executive Officer at OST, defines the company's strategic imperatives and operational framework. Stuehr's leadership ensures that OST consistently delivers comprehensive technology solutions and consulting services, grounded in deep technical expertise and strategic advisory capabilities. The Founder's vision guides the firm's approach to tackling complex operational and technological challenges for a diverse client base, including government agencies and private enterprises. Olaf Stuehr oversees the cultivation of a client-centric methodology, prioritizing tailored solutions over standardized templates. The Chief Executive Officer's role is pivotal in maintaining OST's reputation for accountability and precision, particularly within demanding operational constraints and complex regulatory environments, driving the company's sustained impact.

    James Bottorff - Chief Financial Officer

    James Bottorff, the Chief Financial Officer at OST, directs the company's financial strategy, planning, and reporting. Bottorff oversees all fiscal operations, ensuring robust financial health and supporting the company's growth objectives across its diverse service offerings. This leadership role involves managing budgets, optimizing financial performance, and ensuring compliance with regulatory requirements pertinent to technology solutions and consulting services. The Chief Financial Officer's responsibilities extend to providing critical financial insights that inform strategic decision-making, enabling OST to effectively address complex operational and technological challenges. James Bottorff's expertise is crucial for maintaining financial stability and driving the company's long-term success, supporting initiatives for government agencies and private enterprises alike.
    James Bottorff

    Anil Chaudhry - Principal & Amp. Chief Financial Officer

    Anil Chaudhry, the Principal & Amp. Chief Financial Officer at OST, manages the company's financial operations and strategic fiscal planning. Chaudhry's dual role as Principal signifies a deep involvement in client engagements and operational strategy, complementing the financial oversight responsibilities. This executive ensures that OST's financial resources are effectively allocated to support the delivery of comprehensive technology solutions and consulting services. The Chief Financial Officer's purview includes financial analysis, risk management, and the development of financial models that align with the company's objectives. Anil Chaudhry's leadership is instrumental in maintaining financial integrity and driving profitability, supporting OST's mission to address complex operational and technological challenges for its diverse client base.

    Ivan Marakov - Chief Technology Officer

    Ivan Marakov, the Chief Technology Officer at OST, leads the company's technological vision and innovation strategy. Marakov oversees the development and implementation of cutting-edge technology solutions that underpin OST's consulting services across various sectors. This role is critical for ensuring that the firm's technical expertise remains at the forefront, enabling clients to navigate complex operational and technological challenges effectively. The Chief Technology Officer's responsibilities include guiding research and development, managing IT infrastructure, and driving digital transformation initiatives. Ivan Marakov's leadership ensures that OST's service portfolio, spanning systems integration, data management, and organizational transformation, consistently aligns with the latest technological advancements and client requirements.

    Yolanda Montoya - Deputy Associate Chief Information Officer

    Yolanda Montoya, the Deputy Associate Chief Information Officer at OST, supports the strategic direction and operational management of the company's information technology infrastructure. Montoya collaborates with the Chief Information Officer to ensure the effective deployment and maintenance of IT systems that support OST's comprehensive technology solutions and consulting services. This role involves overseeing critical IT functions, enhancing system security, and driving initiatives that improve operational efficiency. The Deputy Associate Chief Information Officer's responsibilities are key to enabling OST to address complex technological challenges and deliver reliable services to government agencies and private enterprises. Yolanda Montoya's contributions are vital for maintaining a robust and secure IT environment that underpins the company's overall business objectives.

    Zoundi Raphael - Drh

    Zoundi Raphael, the Drh at OST, leads the human resources and talent management functions, ensuring the company possesses the skilled personnel necessary for its operations. Raphael oversees recruitment, employee development, and organizational culture initiatives, aligning human capital strategies with OST's business objectives. This role is critical for supporting the delivery of comprehensive technology solutions and consulting services by fostering a high-performing workforce. The Drh's responsibilities include developing policies that promote employee engagement and professional growth, essential for addressing complex operational and technological challenges. Zoundi Raphael's focus on talent acquisition and retention ensures that OST maintains its technical expertise and strategic advisory capabilities, crucial for serving government agencies and private enterprises effectively.

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    Frequently Asked Questions Regarding OST Top Executives and Leadership Team

    Who leads OST?
    OST is led by Marcus Collier (Chief Executive Officer), along with executives such as Jose S. (Manager, Commercial & Chief Executive Officer) and Michael Naumenko (Chief Executive Officer & Editor & Chief).
    Who is part of OST’s executive team?
    The executive team of OST includes leaders such as Marcus Collier (Chief Executive Officer), Jose S. (Manager, Commercial & Chief Executive Officer), Michael Naumenko (Chief Executive Officer & Editor & Chief) and other senior executives.
    How many executives does OST have?
    OST has 10 executives leading key business areas.
    What roles are included in OST’s leadership team?
    The leadership team of OST includes roles such as Chief Executive Officer, Manager, Commercial & Chief Executive Officer, Chief Executive Officer & Editor & Chief, Chief Executive Officer & Founder, Founder & Chief Executive Officer.