## **Senior Java Backend Developer – Drive Innovation in High-Performance Systems**
Vipas AB is looking for a **Senior Java Backend Developer** for an exciting assignment with one of our international clients. You will be part of a **global team developing a high-performance Online Charging System (OCS)** used in mission-critical telecom environments.
In this role, you will take a **leading position in backend development**, contribute to technical innovation using **Java and AI-assisted tools**, and mentor other developers in an agile, collaborative setup. This assignment is perfect if you thrive in fast-paced environments and enjoy combining deep technical expertise with teamwork and leadership.
**Location:** Karlskrona
## **What you will do**
- Design and develop **scalable backend services** using Java
- Lead and implement features based on **3GPP Policy Control** (Diameter, 5G REST)
- Collaborate with **international, cross-functional teams** to deliver product increments
- Maintain and improve **CI/CD pipelines** and automated testing
- Mentor junior developers and promote **coding standards and best practices**
- Support adoption of **AI and DevOps tools** (e.g., Amazon Kiro, Copilot, Kubernetes)
## **Requirements**
- 5+ years of experience in **backend development with Java**
- Experience with **telecom protocols** such as Diameter and 5G REST
- Strong knowledge of **Docker, Kubernetes, CI/CD**, and monitoring tools (Grafana, Prometheus)
- Proficiency with **Git, Gerrit, Jenkins, Maven**
- **Agile mindset** with experience working in Scrum teams
- Strong communication skills and a proactive, collaborative approach
## **About Vipas AB**
Vipas AB is a **Swedish technology consultancy** helping organizations succeed in a digital and connected world. We work with leading companies across industries such as **telecom, defense, automotive, energy, and the public sector**, delivering expertise in software development, systems engineering, embedded systems, and digital transformation.
At Vipas, we believe in **long-term partnerships** with our clients and employees. Our consultants are our greatest strength, and we focus on creating assignments where you can **grow, make an impact, and feel proud of the work you do**.
## **Why Vipas AB?**
- **Personal development** – training, certifications, and career coaching
- **Supportive culture** – close dialogue with dedicated managers and colleagues
- **Challenging assignments** – work with cutting-edge technologies and leading clients
- ️ **Work–life balance** – we value sustainability, flexibility, and long-term careers
- **Strong network** – be part of a growing, knowledge-driven consultancy
## **Apply today**
Send your application to **shriniv@vipas.se** or contact us at **+46 728 479197**.
