Job Description

The company

Upstream is a global leader in mobile marketing automation and digital service innovation, enabling Mobile Network Operators (MNOs) and brands to grow revenue, improve customer engagement and succeed in the digital economy. With over two decades of experience and operations spanning 45+ markets across Africa, Latin America, Asia, Europe, and the Middle East, we are a trusted partner to more than 60 MNOs worldwide.

Headquartered in Athens, Greece, and with regional hubs in London, Dubai, Johannesburg, Lagos, São Paulo and Rio de Janeiro, Upstream combines global expertise with deep local insight. Our end-to-end approach encompasses strategy, creative development, technical deployment, campaign execution, and ongoing optimization, ensuring seamless, scalable, and performance-driven service delivery.

The role

We are looking for a Junior Account Manager to support the day-to-day management and growth of client accounts. This role is ideal for an ambitious early-career professional who wants to build experience in client relationship management, commercial operations, and digital services within an international business environment. Based in Athens, you will work closely with senior team members and cross-functional teams to help deliver successful projects and strong client outcomes.

Main Responsibilities

• Supporting client relationships: Act as a key point of contact for day-to-day communication with clients, under the guidance of senior team members; assist in managing client expectations and contribute to maintaining strong client satisfaction
• Assisting with account performance and commercial activities: Support the execution of account plans and contribute to achieving account targets; assist in contract administration, performance tracking, and monthly reporting; help with reconciliations, invoicing, and payment follow-ups
• Coordinating operational tasks: Assist in coordinating local operational resources to ensure smooth delivery (e.g., prizes, logistics, regulatory requirements, supplier coordination, and recruitment channels); support the team in meeting client deliverables
• Collaborating with internal teams: Work closely with cross-functional teams (e.g., product, tech, marketing) to help ensure projects are delivered on time and according to plan
• Monitoring service performance: Support tracking of key performance indicators such as traffic, messaging performance, and customer feedback; escalate issues when needed and contribute to reporting
• Identifying growth opportunities: Assist in identifying upselling opportunities across services, products, and marketing inventory; support the team in preparing proposals and presentations
• Researching market and partners: Help identify potential local partners and product opportunities; conduct research on market trends and competitors
• Tracking competitive landscape: Monitor the local competition and report insights, potential risks, and opportunities to the wider team

Requirements

Knowledge, Skills and Experience

The ideal candidate will be ambitious, self-driven, dedicated, and flexible, and have the following qualifications:

• 6 months – 3 years of relevant work experience (internships or entry-level roles in consulting, marketing, telecoms, or technology are a plus)
• BSc degree required (MSc is a plus), preferably in a numerate or business-related discipline
• Excellent command of the English language, both written and spoken
• Great communication and interpersonal skills, with an interest in client-facing roles and relationship management
• Strong analytical and problem-solving skills, with attention to detail
• Eagerness to learn and grow in a fast-paced and demanding environment
• Basic understanding or strong interest in Mobile, Web, or online advertising industries
• Ability to manage multiple tasks and meet deadlines under guidance
• Tech-savvy mindset, with curiosity for areas combining technology and marketing
• Team player with a proactive and results-oriented attitude
• International mindset and cultural awareness
• Experience or exposure to mobile operators or digital services will be considered a plus

Other Key Considerations

• Exposure to budget management and cost control
• Exposure to business development, account management, or B2B client support
• Marketing thinking and creative capability
• Knowledge of French or other languages will be considered a plus
• Willingness to travel occasionally (up to 25% of the time)

Benefits

We offer a competitive base salary and benefits, directly dependent on the candidate’s qualifications and skills. The real excitement comes from working closely with a dynamic, smart, agile and highly motivated team in a competitive and fast paced environment.

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Upstream is an equal opportunity employer. The Company does not discriminate on the basis of race, colour, creed, pregnancy, religion, gender, national origin, age, disability, marital, or any other legally protected status. The Company also makes reasonable accommodations for disabled employees. Finally, the Company prohibits the harassment of any individual based on their protected status. This policy applies to all areas of personnel actions including recruitment, hiring, training, promotion, compensation, benefits, transfer, and social and recreational programs.