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Meet Our Collaborators: The Driving Force Behind Our Success

Antros Yiasemi

Co-founder and Director

Antros Yiasemi

Antros Yiasemi brings over a decade of impactful leadership in the pharmaceutical and financial sectors, driving business results through innovative people practices.

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Katerina Charalampous
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HR Partner

Katerina Charalampous

Katerina's shift from an academic background to HR consulting marks an intriguing chapter in her career narrative. Katerina also has a supportive role at TalentJar, a sub-brand of OneJar.

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HR Partner

Stefanos Avraam

Stefanos has a strong analytical mindset and enjoys working with data to support real business and talent decisions. He studied Computer Science with Entrepreneurship at the National University of Singapore and has gained experience through internships and projects in digital transformation, market analysis, and operational improvement.

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HR Partner

Maria Aristotelous

Maria Aristotelous brings a strong background in finance, holding a Bachelor’s degree in Accounting and Finance from the University of Salford in Manchester.
 

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Andreas Tziarras

Managing Director

Andreas Tziarras

Andreas has a decade of experience in corporate leadership roles and a track record of driving positive change in organizations in Asia, Europe and the Middle East.

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Junior HR Partner

Gabriela Sredzinska

Gabriela Sredzinska holds the role of Junior HR Partner and supports all back-office operations at OneJar, with a strong focus on processes and procedures to ensure the smooth and efficient running of daily operations.

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Head of Operations

Savvas Avraam

Savvas brings senior operational experience from international organisations, where he has overseen multi-entity structures, led strategic initiatives and strengthened performance management across complex business environments.

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HR Partner

Frederica Von Prince

Frederica Von Prince holds a Diploma in Human Resources Management and a degree in Business Administration and Management from the National & Kapodistrian University of Athens.

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OneJar stands as a premier provider of human capital solutions.

LICENSED RECRUITMENT AGENCY: 471

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