Upvanta

MID Full-stack Engineer (Java/JavaScript)

800 - 1100 PLN/ dzień./ dzień.B2BB2B (netto)

MidHybryda·WrocławFull-time·B2B

#464696·Dodano 21 dni temu·16

Źródło: justjoin.it

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Tech Stack / Keywords

JavaScript HTML CSS Java OracleWebLogic

Podsumowanie oferty

The role involves developing, enhancing, and maintaining web applications for a large European public institution. You will deliver end-to-end solutions across frontend interfaces, backend services, databases, and cloud infrastructure, using technologies including Java, JavaScript, and RESTful APIs.

Wymagania

University degree corresponding to Level 7 of the European Qualifications Framework and at least five years of professional IT experience.
Very good spoken and written English at B2 level.
Proficiency in JavaScript, HTML, and CSS, with experience in Vaadin 7, Angular, React, Vue, and Bootstrap.
Expertise in Java 8/17 and backend stacks including Java, Node.js, and PHP, as well as JEE (EJB 3, CDI, JMS), Spring Boot, and Hibernate JPA.
Advanced experience designing, building, and securing RESTful APIs and web services using Kafka, Protobuf, JAX-WS, JAXB, and OpenAPI/Swagger.
Proficiency with Oracle Database, PostgreSQL, and MongoDB, including schema design, query optimization, and version control with Flyway.
Strong understanding of WebLogic 12c and WebLogic 14 application servers.
Experience with Maven, Webpack, and Vite.
Background in automated testing and tools such as JUnit 4 and Mockito.
Expert knowledge of Git workflows, including GitFlow and trunk-based development, using GitLab and Bitbucket, and understanding of legacy systems using SVN.
Knowledge of AWS and Azure, and experience with infrastructure-as-code tools such as Terraform, AWS CloudFormation, or Azure Bicep.
Understanding of Docker and Kubernetes for application deployment, and deep knowledge of authentication and authorization standards such as OAuth 2.0, OpenID Connect, and JWT.
Experience with Agile methodologies and JIRA for task and project management.
Ability to write clear, structured technical specifications for AI code agents such as Kiro and GitHub Copilot, and awareness of AI limitations.
Excellent problem-solving and communication skills; English proficiency at B2 level or higher; ability to review and validate AI-assisted development outputs.

Obowiązki

Design, develop, and maintain responsive web applications using modern frontend technologies and frameworks.
Implement backend services, business logic, and RESTful APIs using Java and other backend technologies.
Design and maintain database schemas, optimize queries, and ensure data integrity across relational and NoSQL databases.
Implement secure authentication and authorization mechanisms using OAuth 2.0, OpenID Connect, and JWT.
Develop scalable and reliable application components that meet functional and non-functional requirements.
Perform unit and integration testing, troubleshoot and debug applications, and maintain code quality.
Deploy and manage applications using cloud platforms, CI/CD pipelines, containers, and infrastructure-as-code tools.
Collaborate with developers, architects, and stakeholders to integrate system components.
Prepare and maintain technical documentation, specifications, and architectural decision records.
Use AI-assisted development tools such as GitHub Copilot and Kiro, and validate generated code for correctness, security, performance, and coding-standard compliance.
Contribute to continuous improvement and follow Agile methodologies and software engineering best practices.

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