Java Engineer

We are seeking a skilled and experienced Java Back-End Developer to join our team on a hybrid project on behalf of one of our largest clients in the energy sector.

Your responsibilities will entail:

• Design and develop backend microservices using Java 21 and Spring Boot 3.x;
• Build and maintain RESTful APIs with clear error handling and documented OpenAPI/Swagger specifications;
• Implement gRPC services and clients, including Protobuf schema design;
• Develop event-driven solutions using Apache Kafka consumers and producers;
• Integrate backend services with external systems (OIC, Salesforce, SAP ISU);
• Implement authentication and authorization using OAuth 2.0 / OIDC, including token validation and role-based access;
• Write unit and integration tests using JUnit 5, Mockito, and Testcontainers;
• Collaborate with Dev Ops teams on containerized deployments in Docker and Kubernetes;
• Ensuring that all activities and duties are carried out in full compliance with regulatory requirements and supporting the continued implementation of the Group Anti-Bribery and Corruption Policy.

• University degree in Computer Science, Engineering, or a related field;
• 3–5+ years of experience in backend development;
• Strong hands‑on experience with Java (preferably Java 21) and modern language features;
• Proven experience with Spring Boot (microservices, REST controllers, data access layers, security);
• Experience migrating applications from older Java versions (e.g., Java 11);
• Solid knowledge of Kafka-based event-driven architectures;
• Experience with PostgreSQL, Azure Cosmos DB, and Redis;
• Good understanding of containerization (Docker) and Kubernetes fundamentals;
• Strong understanding of backend security concepts (OAuth2, OIDC, RBAC);
• Experience writing automated tests at unit and integration level;
• Experience working in an Agile environment;

• Integration experience with Confluent Kafka or Azure Event Hubs;
• Exposure to AKS environments;
• Previous work with enterprise integrations (Salesforce, SAP ISU);
• Familiarity with cloud-native observability tools;
• Familiarity with Azure Dev Ops.

• Privateinsurance
• Hybrid working Model
• Unlimitedfreeaccesstowellnessworkplacesupportplatform
• Adynamicchallengingenvironmentresultingincontinuouslearning/education/progression
• Abilitytoworkwithcuttingedgetechnologies
• Pleasantworkingenvironment

UpcoMindsisadynamicITcompanywith
28yearsofexperiencethatprovidesend-to-endwebandmobilesolutionshelpingbusinessestoreinventthemselvesinthedigitalworld.

Ourteam’sskillsandexpertisewillensuretheholisticdigitaltransformationofanyorganization,whichwillconsiderablyimprovebothbusinessoperationsandcustomer’sexperience.

Ourgoalistoalwayshaveourendproductsandservicesreflectourdeepengineeringskillsandelegantprogressivedesignaesthetic.

Wefundamentallybelievedeeplyindevelopinglongtermstrategicpartnershipswithourclientsbyexceedingexpectationsandmaintainingahighleveloftransparency.

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Wecommittopromote Inclusion&Diversitybycreatingaworkingenvironmentwhereallemployeesaretreatedwithdignityandrespectandwhereindividualdifferencesarevalued.

Weofferequalopportunityinallaspectsofemployment.