International Sales Specialist

📍 Istanbul | Ataşehir | Office About Sigma Telecom Sigma Telecom is an international telecommunications company working with operators, aggregators, and global partners across multiple markets. We specialize in managing telecom connectivity and traffic relationships, ensuring reliable operations and long-term partnerships. Our environment is fast-paced, detail-driven, and highly international. Role Overview This is not a traditional sales role. At Sigma Telecom, you will operate at the intersection of account management, telecom trading, and performance optimization within the global Voice & SMS market. Your primary responsibility will be to manage, retain, and grow existing accounts , while continuously optimizing their performance. You will combine: Strong relationship management Analytical thinking and real-time decision-making This role is highly performance-driven, where your actions directly impact revenue, retention, and partner satisfaction. Key Responsibilities Manage and develop relationships with existing international clients and partners Act as the main point of contact for assigned customers Ensure high levels of client satisfaction and long-term retention Monitor traffic flows and account performance in real time Take immediate action when performance drops or opportunities arise Identify growth opportunities within existing customers (upsell / cross-sell) Analyze data to optimize routing, pricing, and overall performance Negotiate commercial terms with clients and vendors when required Work closely with routing, NOC, and operations teams Proactively follow up on performance, issues, and opportunities Take full ownership of assigned accounts and their results What We’re Looking For Strong interest in account management, client relations, and business growth Ownership mindset — you take responsibility for results Commercial thinking — ability to grow accounts, not just maintain them Analytical mindset — comfortable working with data and performance metrics Ability to work in a fast-paced, real-time environment Persistence and strong follow-up skills High energy and strong communication abilities Requirements 0–3 years of experience (fresh graduates are welcome) Fluent English (mandatory — daily communication with international partners) Strong communication and interpersonal skills Good organizational and time management skills Nice to Have Interest in telecom, trading, or international business Experience in account management, customer success, or client-facing roles Familiarity with CRM tools (Zoho, HubSpot, etc.) What You’ll Gain Hands-on experience in international B2B account management and telecom trading Exposure to real-time commercial decision-making Career growth into senior account management or telecom trading roles A dynamic, international, and fast-growing work environment