Full-stack Software Engineer

SoftServe; Polska; On-site; PLN 180,000 - 240,000; Full time

Job summary

SoftServe is seeking a Senior Full-Stack Java Engineer to work on large-scale corporate systems supporting calls, proposals, grants, audits, and funding management within a European public-sector environment.

You will develop and maintain secure, scalable applications across backend, frontend, APIs, databases, cloud, and CI/CD while also contributing to code reviews, mentoring, requirements refinement, and production support.

Qualifications

• University degree corresponding to EQF Level 6 (Bachelor’s degree or equivalent).
• 7+ years of professional IT experience.
• Strong Java backend expertise with Spring Boot, Hibernate, and REST API development.
• Strong knowledge of JavaScript, HTML, and CSS.
• Experience with PostgreSQL, Oracle, and MongoDB; schema design and query optimization.
• Experience with WebLogic, JEE, and EJB.
• Experience with AWS or Azure and cloud 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 CI/CD/build 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, Fortify, or similar code analysis tools.
• Experience with Apache Camel.
• Experience with Drools or similar rule engines.
• Experience with AI coding tools such as Amazon Q or Kiro.
• Knowledge of system analysis and project management will be a plus.
• Strong mentoring, communication, and technical leadership skills.
• English or French proficiency at B2 level or higher.

Responsibilities

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

Job description

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 funding management within a European public-sector environment.

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 funding management within a European public-sector environment. You will develop and maintain secure, scalable applications across backend, frontend, APIs, databases, cloud, and CI/CD while also contributing to code reviews, mentoring, requirements refinement, and production support.

Responsibilities

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

Requirements

• University degree corresponding to EQF Level 6, typically a Bachelor’s degree or equivalent
• 7+ years of professional IT experience
• Strong Java backend expertise 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 CI/CD and build 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
• Experience with Drools or similar rule engines
• Experience with AI coding tools such as Amazon Q or Kiro
• Knowledge of system analysis and project management will be a plus
• Strong mentoring, communication, and technical 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.