Upvanta

MID Full-stack Engineer (Java/JavaScript)

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

MidZdalnieFull-time·B2B

#463473·Dodano 24 dni temu·33

Źródło: nofluffjobs.com

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Tech Stack / Keywords

DegreeJavaScript HTML CSS Vaadin Angular React Vue.js Bootstrap JavaBackendNode.js PHPJEEEJBJMSSpring Boot HibernateJPAREST APIWeb ServicesKafkaOpenAPISwaggerOracle database PostgreSQL MongoDB Maven WebpackAutomated testingJUnit Mockito GitGitflowGitLabBitbucketSVNCloudAWS AzureIaCTerraformAWS CloudFormationBicep Docker KubernetesProtocolsOAuthOpenIDJWTAgile JiraProject managementAIGitHub

Podsumowanie oferty

Develop and maintain web applications for a large European public institution, delivering end-to-end solutions across frontend, backend, databases, and cloud infrastructure. The role combines full-stack development using Java and JavaScript with a focus on performance, security, scalability, and maintainability.

Wymagania

A 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 corresponding to Level B2.
Proficiency with JavaScript, HTML, and CSS, and experience with Vaadin 7, Angular, React, Vue, and Bootstrap.
Expertise in Java 8/17 and backend stacks including Node.js, PHP, 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 Flyway.
Strong understanding of WebLogic 12c and 14 application servers.
Experience with Maven, Webpack, and Vite.
Background in automated testing, including 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 cloud services (AWS, 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 working within Agile methodologies and using 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; 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 relevant 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 standards such as OAuth 2.0, OpenID Connect, and JWT.
Develop scalable and reliable application components, ensuring compliance with functional and non-functional requirements.
Perform unit and integration testing, troubleshoot issues, debug applications, and maintain code quality.
Deploy and manage applications using cloud platforms, CI/CD pipelines, containers, and infrastructure-as-code tools.
Collaborate with frontend and backend developers, architects, and other stakeholders to ensure seamless integration across system components.
Prepare and maintain technical documentation, specifications, and architectural decision records.
Leverage AI-assisted development tools, such as GitHub Copilot and Kiro, to accelerate development while validating generated code for correctness, security, performance, and compliance with coding standards.
Contribute to continuous improvement initiatives and follow Agile methodologies and established software engineering best practices.

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