Project Manager/Junior Account Manager

About this role

⭐️ CoreStar is a dynamic technology company supporting partners in heavy-load industries with high-performance solutions. Our expert teams bring a startup-driven mindset, focusing on innovation, collaboration, and efficiency in every project. At CoreStar, you’ll have the opportunity to grow your skills, tackle exciting challenges, and directly contribute to impactful products.

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Key Responsibilities

• Own B2B client relationships — act as the main point of contact, manage day-to-day communication, expectations, and escalations.
• Drive client delivery end-to-end — translate client needs into internal actions and coordinate execution across internal teams from request to delivery.
• Coordinate internal cross-functional initiatives — manage scope, ownership, timelines, dependencies, and risks to ensure initiatives are delivered.
• Own account financial operations — coordinate invoicing and track account revenue, costs, and P&L performance.
• Support account growth — understand client needs, identify opportunities for improvement or expansion, and bring relevant opportunities to internal stakeholders.
• 📌  Required

skills

• Strong client and stakeholder management skills, including expectation management and handling escalations.
• Excellent written and verbal communication, with the ability to communicate clearly with both clients and internal teams.
• Strong ownership and accountability — able to drive topics to completion across teams without direct authority.
• Solid project management fundamentals — planning, prioritization, timelines, dependencies, risks, and delivery tracking.
• Good commercial and financial understanding, including invoicing, revenue/cost tracking, and basic account P&L.
• Ability to understand client needs and translate them into clear requirements and actions for internal teams.
• Strong problem-solving and decision-making skills, comfortable operating in a fast-moving environment with changing priorities.
• 📌

Benefits

🏝 24 working days of paid annual leave

🤝 6 days of paid sick leave

🖊 Official employment

📄 Medical insurance

☕️ Coffee zone with fruit & snacks available in the office

🥗 Corporate Lunch provided by the company

💪 Gym and sports classes

🙌 Healthy and friendly work atmosphere

📚 Greek and English language classes (partially covered)

Join us and be one of the Core Stars! ⭐