DevOps Engineer

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: Our focus centers on streamlining the development, building, testing, integration, packaging, and deployment of our microservice-based products. We are looking for a Cloud Platform Engineer to join our team and help us maintain and scale our infrastructure to provide an even better experience for our users. An ideal candidate would be a passionate engineer who loves Linux, prefers working in the shell over an IDE, is intimately familiar with cloud infrastructure and VMWare virtualization, has a strong networking background, is comfortable in a polyglot environment, who thrives in true-agile, fast paced, production facing environments and loves hardware. A team member who may not have all the answers but knows how to find them. What you will do Help us define the future of our artifact and container-based deployment strategies. Evolve and support our immutable deployment platform. Contribute to the design of high-volume, low-latency applications for mission-critical systems, ensuring high availability and performance, while collaborating closely with development teams. Design and implement on-premise and cloud infrastructure solutions on platforms such as VMWare, AWS, Azure. Maintain and upgrade our on-premise data center infrastructure. Optimize cloud infrastructure for cost, performance, and scalability. Develop and deploy Infrastructure as Code (IaC) using tools like Ansible and Terraform. Troubleshoot and resolve issues related to system performance, network connectivity, and security. Perform system upgrades, patch management, and security hardening. Adapt to and become part of a continuously evolving environment. Design and implement CI/CD pipelines using tools like Jenkins, GitLab CI/CD, or other similar tools to automate the build, test, and deployment processes. Enable developers to quickly build, bake, and deploy images either locally, on Kubernetes and to the cloud. Work directly with Upstream engineers to provide a polyglot-friendly experience and first-class support for platforms built on Java, Python, Go, PHP and others. Monitor the performance, availability, and security of our on-premise and cloud environments. Contribute to the development of tools for automating deployments, unifying platform metrics, reporting, and monitoring. 3 - 5 years of experience in DevOps, Systems Engineering, or similar roles. Linux experience - knowledge on Linux system administration and troubleshooting. Exposure to container technology (e.g., Docker), container orchestration systems (e.g., Kubernetes), container-focused Linux distributions, and cloud virtualization. Cloud experience - designing and building tools and infrastructure for cloud platforms (e.g. AWS, Azure). Knowledge on DevOps tools - Ansible, Terraform, Helm, Jenkins, Gitlab, Grafana, Prometheus, Loki amongst others. Operational experience - comfortable providing support to other departments, optimizing deployments for availability and uptime, going deep on troubleshooting and remediation. Programming experience - Bash, Python, Golang amongst others (both reading and writing). Experience with VMware vCenter, clustering, and virtualization technologies will be considered a plus. Experience managing bare metal servers, storage systems, and SAN networks will be considered a plus. Knowledge of Relational Databases (e.g., PostgreSQL) and NoSQL systems (e.g., Redis, ElasticSearch, Couchbase, Cassandra). Great communication skills, both written and verbal. Eagerness to learn new technologies. 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. Follow us on LinkedIn and stay updated on our latest news. Upstream is an equal-opportunity employer. Upstream is an equal-opportunity employer. The Company does not discriminate on the basis of race, color, 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