Junior Platform Engineer

Hybrid in Greece: Athens

Platform Engineering

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We are seeking a Junior Platform Engineer to join our eCommerce & Digital Operations team.

In this role, you will help ensure the reliability, performance and seamless operation of our digital platforms, supporting critical systems that power customer experiences and business operations.

Please note that working from the office in Athens 3 days per week is required.

Responsibilities

Maintain and monitor eCommerce, loyalty and digital operational platforms to ensure high performance, uptime and reliability
Provide Tier 2 support for customer-facing systems, addressing issues related to catalog, pricing, promotions, personalization, loyalty points, identity, checkout and digital content
Collaborate with DevOps, Product Owners and vendor partners to resolve platform incidents and prevent customer-impacting disruptions
Support the operation of microservice-based architectures, including API gateways, service meshes and containerized deployments
Use observability tools to diagnose performance bottlenecks or failure patterns across the digital ecosystem
Assist with rollout, testing and validation of new microservices, integrations and platform enhancements
Monitor and support streaming pipelines such as Kafka for real-time events including cart updates, orders, promotions, personalization and loyalty transactions
Demonstrate understanding of relational database operations such as Postgres, MySQL and SQL Server, including query optimization, data validation and issue diagnosis
Assist with schema changes, replication monitoring and performance tuning across production and pre-production databases
Partner with engineering teams to ensure data integrity across APIs, services and downstream systems
Support and maintain system integrations across digital platforms, loyalty engines, store systems and enterprise applications
Troubleshoot API failures, latency issues and payload-level anomalies in REST, SOAP, GraphQL, event-driven and batch integrations
Ensure integrations follow best practices for security, scalability and fault tolerance
Enhance monitoring, logging and alerting across digital and loyalty systems using APM and observability tools
Document platform behavior, system flows, operational playbooks and troubleshooting guides

Requirements

Bachelor’s degree in Computer Science, Engineering, Information Systems or equivalent practical experience
Up to 1 year of working experience in platform operations, support or related technical roles
Knowledge of relational databases and proficiency with SQL
Familiarity with API technologies such as REST, GraphQL and SOAP, and integration patterns including synchronous, asynchronous, event-driven and batch
Analytical and diagnostic skills with capability to resolve complex system issues
Communication skills to collaborate with technical and non-technical people
Understanding of scripting languages such as HTML or Java considered an asset

Nice to have

Understanding of microservices architecture and distributed systems
Hands-on experience with observability and monitoring tools such as Datadog, New Relic, Splunk, Grafana or ELK
Experience with streaming platforms such as Kafka

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