Fullstack Developer (m/f/d) System Modernization & Strategic Delivery

Protect what matters. Primion Technology is a global solution provider and market leader in Converged Security Solutions and Workforce Management. For more than 30 years, we have supported around 4,000 satisfied customers worldwide who rely on our certified solutions every day. From consulting and planning to development, installation, maintenance, and support, a team of over 470 dedicated experts works passionately to meet the highest standards. This role requires an accomplished Fullstack Developer with exceptional expertise across both the Java/Spring backend and the Angular frontend, specifically adept at modernizing legacy systems and integrating new services with established architectures. The ideal candidate is a proactive, DevOps-minded collaborator who can drive solutions from strategic design to automated, continuous deployment. Join our team and apply today on a 100% Remote-Basis as Fullstack Developer (m/f/d) System Modernization & Strategic Delivery! Key Responsibilities Architect and design robust full-stack solutions to translate complex requirements. Develop new RESTful APIs over existing core Java systems using Spring Boot. Build and evolve dynamic, scalable user interfaces using Angular and PrimeNG. Implement a comprehensive testing strategy, including Playwright E2E testing. Own and optimize our automated CI/CD pipelines (ideally GitLab CI/CD). Key Qualifications Architecture & Solution Design Solution Design & System Architecture: Proven ability to translate complex business requirements into scalable, maintainable, and robust full-stack solution designs. Expertise in defining architectural patterns (e.g., Microservices, Layered Architecture) that facilitate system modernization while ensuring seamless integration with existing core Java and legacy systems. Design Documentation: Skilled in creating clear architectural documentation, flowcharts, and technical specifications to align development teams and stakeholders. Core Technical Expertise Backend Mastery: Java, Spring & System Integration Java Expertise & Legacy System Integration: Expert-level proficiency in Java (core concepts, data structures, algorithms). Proven ability to analyze, comprehend, and integrate with existing complex Java codebases, developing new functionalities and RESTful facades on top of established architectures. Spring Framework & Modernization: Solid experience building enterprise-level applications using the Spring Framework (Spring Boot, Spring MVC, Spring Data). Adept at leveraging Spring to modernize existing systems and build robust, well-tested layers over legacy code. RESTful APIs & OpenAPI Specification: Strong ability to design, develop, and consume RESTful APIs. Extensive experience defining and documenting APIs using the OpenAPI Specification (Swagger). Frontend Mastery: Angular & UI/UX Evolution Angular Expertise & UI/UX Evolution: Master-level proficiency in designing and building highly dynamic, responsive, and performant user interfaces using Angular. Demonstrated ability to evolve and re-architect existing Angular applications for scalability. PrimeNG Framework & Component Architecture: Extensive experience with the PrimeNG component library. Proven ability to customize, extend, and optimize components, contributing to a reusable component library. API Integration & OpenAPI Proficiency: Strong capability in consuming and integrating with complex RESTful APIs. Utilizing OpenAPI Specifications (Swagger) for efficient API understanding and integration. Quality & DevOps Automation Automated Testing Full-Stack Testing Strategy: Expertise in implementing a comprehensive testing pyramid, including unit, integration, and end-to-end (E2E) tests. E2E Testing with Playwright: Strong, hands-on experience designing and implementing reliable and fast End-to-End tests using Playwright for cross-browser validation of the Angular application and its integration with the backend APIs. Backend Quality: Proficient in writing high-coverage unit and integration tests for Java/Spring services. Continuous Integration/Continuous Deployment (CI/CD) CI/CD Pipeline Expertise: Deep understanding of Continuous Integration and Continuous Deployment best practices, focusing on automation, quality gates, and rapid delivery. GitLab CI/CD Implementation: Hands-on experience designing, maintaining, and optimizing CI/CD pipelines, ideally using GitLab CI/CD, to automate building, testing, artifact creation, security scanning, and deployment across multiple environments. Mindset & Collaboration Proactive & Collaborative Mindset: We expect a highly proactive and contributing individual who takes initiative to identify architectural challenges, propose innovative full-stack solutions, and actively participate in all phases of the development lifecycle. End-to-End Ownership: Ability to take complete ownership of features, spanning both the client-side and server-side implementations, ensuring a cohesive and high-quality final product delivered through an automated pipeline. Your Benefits What makes working with us great? We take care of you while you take care of your business! We listen better and take a closer look. Our aim is to build long-term relationships based on mutual respect and trust. That's why we offer you: Impact: play a crucial role in the development of a company that is among the top 5 in its industry. Innovation: Work on challenging and innovative projects to elevate our processes and culture to the most modern standards. Excellence: An environment that encourages continuous improvement and personal development. Growth: Responsible and diverse tasks in a growing medium-sized company. Collaboration: Become part of our agile, cross-functional and international team. A modern working environment: Flexible working hours and mobile working Security: Long-term prospects thanks to a permanent employment contract and 30 days' vacation Benefits: A company pension scheme and capital-forming benefits, as well as offers on occupational and company medical topics Have we piqued your interest? Then we look forward to receiving your application! If you have any questions in advance, please call Anna Hallmeier on 07573 952 228. Find Jobs in Germany on Arbeitnow