Senior Full Stack Engineer (Java+JS)

About The Role

In this role, you will work as a Senior Full-Stack Java Engineer on large-scale corporate systems supporting calls, proposals, grants, audits, and related business processes within a European public-sector environment. You will develop secure and scalable applications across the full stack, contribute to cloud and CI/CD delivery, support production stability, and provide technical guidance to other team members.

Responsibilities

• Develop and maintain front-end and back-end application components
• Implement business logic, responsive user interfaces, APIs, and database integrations
• Design and secure RESTful APIs and web services
• Apply security best practices for validation, authentication, authorization, storage, logging, and monitoring
• Perform unit and integration testing, debugging, and production troubleshooting
• Deploy and manage applications using cloud platforms, CI/CD pipelines, Docker, and Kubernetes
• Monitor application stability and performance across lower environments
• Perform code reviews, mentoring, technical onboarding, and skills assessment
• Collaborate with QA teams and participate in requirements refinement and estimation
• Maintain technical documentation and high code-quality standards

Requirements

• University degree corresponding to EQF Level 6, typically a Bachelor’s degree or equivalent
• 12+ years of professional IT experience
• Strong Java backend experience with Spring Boot, Hibernate, and REST API development
• Strong knowledge of JavaScript, HTML, and CSS
• Experience with PostgreSQL, Oracle, and MongoDB, including schema design and query optimization
• Experience with WebLogic, JEE, and EJB
• Experience with AWS or Azure and cloud application deployment
• Experience designing and securing REST APIs with OpenAPI/Swagger
• Strong knowledge of OAuth 2.0, OpenID Connect, and JWT
• Knowledge of Angular, React, Vue, or Bootstrap
• Experience with Maven, GitLab, Bamboo, Jenkins, Nexus, or similar build and CI/CD tools
• Experience with Jira, Git, Bitbucket, and wiki-based collaboration tools
• Experience with Docker and Kubernetes
• Knowledge of SOA and service bus architectures
• Experience with Agile and Scrum
• Experience with JUnit and Mockito
• Experience with SonarQube, SonarLint, HP Fortify, or similar code analysis tools
• Experience with Apache Camel and Drools
• Experience with AI coding tools such as Amazon Q or Kiro
• Knowledge of system analysis and project management is an asset
• Strong mentoring, communication, and leadership skills
• English or French proficiency at B2 level or higher

_SoftServe is an equal opportunity employer. Qualified applicants will receive consideration regardless of race, color, ancestry, ethnicity, national origin, religion, sex, sexual orientation, gender identity or expression, age, citizenship, disability, health condition, marital or family status, veteran status, or any other characteristic protected by applicable law.

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