Account Manager (Portuguese Speaking)

Who we are 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. About The Role We are looking for a Portuguese-speaking Account Manager to join our Johannesburg team and drive strategic and operational growth across our South African market while supporting key accounts in Brazil and Angola. In this role, you will be responsible for managing client relationships, identifying revenue opportunities, overseeing account performance, and collaborating with cross-functional teams to deliver exceptional results. The ideal candidate is commercially driven, customer-focused, and fluent in both Portuguese and English, with a passion for building strong partnerships and growing business across diverse international markets. Key Responsibilities: 1. Revenue Growth & Strategy Achieve regional or account-specific revenue targets and support business expansion initiatives. Take full ownership of the account, managing end-to-end initiatives focused on driving sustainable revenue growth and identifying new opportunities. Provide weekly revenue briefings to senior management, highlighting key performance drivers and actions taken. 2. Operational Management Oversee product onboarding, lifecycle management, and service enhancements for existing and new offerings. Maintain strong operational execution with accurate forecasting, profit and loss tracking, and monthly revenue/cost analysis. Ensure timely revenue collection and accurate reconciling aligned to the scope of work. 3. Client & Stakeholder Engagement Establish direct and effective communication channels with internal stakeholders and key external decision-makers. Develop insights, generate leads, and propose actionable solutions through proactive relationship management. Conduct regular (weekly) client meetings via calls and in-person sessions to resolve issues and identify growth areas. 4. Marketing & Channel Support Lead channel and marketing strategies; assess campaign performance and report findings to stakeholders. Drive account-specific marketing initiatives with measurable ROI. 5. Cross-functional Collaboration Facilitate a weekly internal review with key teams to align on strategy, discuss challenges, and implement new actions for account growth. Monitor and manage Alternative Recruitment Channels to ensure best-practice return on investment. 6. Performance & Accountability Maintain a high level of detail and accountability in reporting metrics, billing optimisation, recruitment efforts, and account performance management. Support CRM initiatives, external communications, and provide operational assistance to the wider account management team.