Up Hellas

Analytics Engineer

• Design, develop, and maintain dbt (Data Build Tool) transformations to ensure clean, well-structured, and efficient data models
• Collaborate with data engineers to optimize data pipelines and enhance data quality
• Develop and optimize SQL-based transformations and queries for performance and efficiency
• Support the processing of high-volume and streaming data using tools such as Apache Spark and Kafka
• Build and maintain BI-ready datasets that support data analysts and business stakeholders
• Work closely with business teams to translate requirements into data models and transformations
• Build and iterate on AI/ML models such as churn prediction and forecasting, from feature preparation through to deployment
• Provide support and guidance on data visualization tools and ensure business users have access to trusted data sources
• Ensure data accuracy, integrity, and consistency across all reporting layers
• Maintain comprehensive documentation of data transformations, models, and governance practices to support workflow automation and trusted data access.

Backend Engineer

• Design, develop, and maintain backend services using Python and associated frameworks (Django, FastAPI).
• Collaborate with cross-functional teams to define, design, and ship new features.
• Work within a microservices architecture, understanding service boundaries and inter-service communication.
• Optimize and refactor existing code for improved performance and maintainability.
• Design and implement RESTful APIs to support frontend and mobile applications.
• Ensure API security and authentication mechanisms are robust and up-to-date.
• Collaborate with frontend developers to integrate frontend components with backend services.
• Work with various databases, ensuring efficient and optimized queries.
• Design and implement database schemas, ensuring data integrity and performance.
• Perform database migrations and handle versioning.
• Write unit tests and conduct thorough testing to ensure the reliability and stability of backend components.
• Collaborate with the quality assurance team to identify and fix bugs and improve overall system performance.
• Create and maintain comprehensive documentation for backend systems and APIs.
• Document code and solutions for future reference and ease of collaboration.
• Work closely with frontend developers, product managers, and other stakeholders to understand project requirements and ensure timely delivery of high-quality solutions.
• Participate in code reviews and peer coding to maintain code quality and share best practices

Backend Developer

Frontend Engineer

• Design, develop, and maintain responsive web applications using React and TypeScript.
• Collaborate with cross-functional teams to define, design, and ship new features.
• Work across multiple frontend projects with shared patterns and conventions.
• Optimize and refactor existing code for improved performance and maintainability.
• Translate design mockups and wireframes into high-quality, pixel-accurate user interfaces.
• Implement responsive layouts that work across different devices and screen sizes.
• Collaborate with designers and product managers to ensure a consistent user experience.
• Manage complex application state and integrate with RESTful backend APIs.
• Handle authentication flows, error handling, and data caching on the frontend.
• Collaborate with backend developers to define API contracts and ensure smooth integration.
• Write unit and component tests to ensure the reliability and stability of frontend components.
• Collaborate with the quality assurance team to identify and fix bugs and improve overall system performance.
• Create and maintain documentation for frontend systems and shared components.
• Document code and solutions for future reference and ease of collaboration.
• Work closely with backend developers, designers, product managers, and other stakeholders to understand project requirements and ensure timely delivery.
• Participate in code reviews to maintain code quality and share best practices.

Frontend Developer

Operations

• Support the Partners Sales Manager on strategy definition and execution
• Monitor and achieve defined KPIs
• Manage all operational activities in the main system: block MIDs, provide back-office information to the team
• Ongoing maintenance and continuous update of the merchant network data
• Regular checks of uninvoiced transactions for any missing MID/BIDs from merchants
• Process manual invoicing for uninvoiced transactions
• Maintain a persistent and results-driven approach in all tasks
• Ensure high levels of service quality and responsiveness to client needs
• Work regularly with the Partners Sales Manager to deliver on KPIs within set timeframes
• Support company efforts to optimize ways of working and act as a role model
• Collaborate effectively with peers across the organization
• Embrace the 'One Team' spirit across all Up Hellas departments
• Follow team directions and adapt as business needs evolve
• Support new initiatives within the area of responsibility
• Act according to company instructions in emergency or exceptional situations

Operations Specialist

Systems Engineer

• Take over escalated tickets from first-level support and train the team
• Reproduce and analyze issues
• Decide what’s a real bug, what’s UX confusion, and what’s a config mistake
• Participate to analysis and requirements of new needs for development
• Administer and improve Jira workflows, statuses, tagging, and hygiene
• Configure and optimize Intercom (macros, inbox rules, tagging, reporting)
• Manage and maintain Microsoft Dynamics 365 CRM (entities, views, workflows, and data integrity)
• Use SQL to validate tickets and dig into product behavior
• Use Postman to test APIs and integrations
• Run logs, tools, and internal scripts to troubleshoot
• Escalate properly to Product when it’s a real issue
• Document what you learn so the team learns too
• Follow up with third-party suppliers and partners — and make sure they deliver
• Work with Support, QA, Product and Tech to constantly improve our internal ticket flow

Analytics Engineer

Backend Developer

Frontend Developer

Operations Specialist

IT Systems Engineer