Java Back-End Developer
Primary stack
Nice to have's
Job description
About the Position
Join our team as a Java Back-End Developer to create robust and efficient server-side solutions for enterprise-level projects.
Responsibilities
- Develop and maintain server-side applications
- Collaborate with cross-functional teams to define, design, and ship new features
- Ensure the performance, quality, and responsiveness of applications
- Implement secure and scalable code
Requirements
- 3+ years of commercial Java development experience
- Strong knowledge of OOP and design patterns
- Practical experience with Spring Boot (MVC, REST, Data, Security, Messaging)
- Strong knowledge of SQL and NoSQL
- Solid understanding of Linux-based server principles
- Ability to navigate existing codebases
- Intermediate (B1) English level or higher
Nice to Have
- Experience with Agile project management methodologies: Scrum/Kanban
- Experience with containerization using Docker
- Ability to write tests (Unit tests, Integration tests)
- Strong knowledge of Elastic Search
- Experience with AWS, GCP
- Knowledge of German or French at a B1 level
We Offer
- Competitive salary
- Official employment
- English classes twice a week
- Travel compensation for non-residents and relocation assistance
- Lounge room, corporate events, teambuilding
- Bonuses after one year of working in our company
- Friendly team of passionate professionals
- 2-month probation period
About the Company
Хочеш зробити крок до технічного менеджменту та впливати на розвиток стартапів і команд?
Ми завжди відкриті до нових талантів і розширюємо нашу команду. Якщо відчуваєте, що ваш досвід і підхід можуть стати частиною нашого успіху - напишіть нам і надішліть своє резюме.
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OSSystem is a Ukrainian tech company helping startups and businesses build meaningful digital products since 2007. We specialize in web and mobile development, working with modern stacks likeReact Native, Flutter, React, Angular, Typescript, Node.js, Python, and AWS. Our clients include fast-growing startups and global enterprises in MedTech, AI, EdTech, IoT, and productivity domains.We’re not just writing code — we solve problems, meet tight deadlines, and grow together with our clients.Now we’re expanding. OSSystemTeam is open for backend, frontend, and mobile developers, QA engineers, project managers, and sales professionals who want to work on purposeful, international projects in a strong, friendly team.Let’s build bright ideas together.