Copy of Fullstack Java Developer

Copy of Fullstack Java Developer at Altavia

About the role

Altavia is looking for a fullstack developer to join their IT team working with Java technologies across the entire application stack.

You will contribute to building and maintaining software solutions that support marketing, advertising, and media service operations for clients operating in multiple markets.

This position offers the opportunity to work within a stable international organization while collaborating with a focused team of IT specialists in Poland.

• Key facts
• Engagement: Full-time employment

What you'll do

• Design, develop, and maintain fullstack applications using Java as the primary backend language, ensuring code quality and adherence to established architectural patterns throughout the development lifecycle.
• Build and enhance user-facing components and interfaces that interact with backend services, translating business requirements into functional technical solutions that serve marketing and advertising workflows.
• Collaborate closely with other developers, designers, and business stakeholders to understand project requirements, participate in technical planning sessions, and contribute to decisions about technology choices and implementation approaches.
• Write clean, maintainable, and well-documented code that can be easily understood and extended by other team members, following coding standards and best practices established within the development team.
• Participate in code reviews to ensure consistency across the codebase, identify potential issues early in the development process, and share knowledge with colleagues to strengthen overall team capabilities.
• Debug and resolve technical issues reported by users or identified during testing phases, investigating root causes and implementing fixes that address both immediate problems and underlying systemic concerns.
• Work with databases to design schemas, write queries, optimize performance, and ensure data integrity across applications that handle client information and campaign data.
• Integrate third-party services and APIs into existing systems, managing authentication, data exchange formats, and error handling to create reliable connections between different platforms.
• Contribute to the continuous improvement of development processes, tools, and workflows by suggesting enhancements based on hands‑on experience and staying current with industry developments.
• Support deployment activities and participate in release planning, ensuring smooth transitions from development through testing and into production environments.

Requirements

• Demonstrated professional experience working as a fullstack developer with Java serving as the core backend technology in real-world production environments.
• Strong command of Java programming fundamentals including object-oriented design principles, common design patterns, and the ability to structure code for maintainability and scalability.
• Hands‑on experience building frontend interfaces using modern web technologies, frameworks, and libraries that enable interactive user experiences in browser‑based applications.
• Practical knowledge of relational database systems including the ability to write SQL queries, design normalized schemas, and understand indexing and performance optimization concepts.
• Familiarity with version control systems, particularly Git, for managing code changes, collaborating with other developers, and maintaining a clear history of project evolution.
• Understanding of web application architecture including client-server communication, RESTful API design principles, HTTP protocols, and common security considerations.
• Ability to work effectively within a team environment, communicating technical concepts clearly to both technical and non‑technical colleagues and contributing to a collaborative atmosphere.
• Problem‑solving mindset with the capacity to analyse complex requirements, break them down into manageable components, and develop practical solutions that meet business needs.
• Proficiency in German language sufficient for daily workplace communication, technical discussions, and documentation tasks within a German‑based office environment.
• Legal authorization to work in Germany without requiring visa sponsorship from the employer.

Skills and tools

• Java for backend application development and business logic implementation
• Frontend technologies for building user interfaces and client-side functionality
• SQL and relational database management systems for data persistence and retrieval
• Git version control for source code management and team collaboration
• Web development frameworks and libraries commonly used in fullstack Java environments
• RESTful API design and implementation for service integration
• Development tools and IDEs suited to Java fullstack development workflows
• Testing frameworks and methodologies for ensuring code quality and reliability
• Practical notes

This position is based in the Düsseltal area of Düsseldorf and requires working from the local office as part of the established team structure.

Altavia operates as part of a larger international group with roots dating back to 2003 in Poland, providing stability and access to broader organizational resources while maintaining a focused team environment.

The Poznań branch includes over 20 specialized IT professionals, and this role connects to that broader technical community within the organization.

Candidates must already possess the right to work in Germany, as the company does not provide visa sponsorship for this position.

The role offers the chance to work on projects serving clients across multiple markets in the advertising, marketing, and media services sectors, providing exposure to diverse business challenges and technical requirements.

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