Senior Java Backend Engineer - Secure Microservices

Koda Tech; Stockholms kommun; On-site; SEK 750,000 - 1,100,000; Full time

Job summary

Koda Tech in Sweden is seeking a Senior Java Developer to design, develop, and modernise enterprise-grade applications. You will work with architects, product teams, and stakeholders to build secure, scalable backend services using Java Spring Boot and REST APIs.

You will contribute to cloud-native architectures, CI/CD practices, and secure identity and authentication standards, while mentoring peers and improving system reliability and performance in a fast-paced engineering team.

Qualifications

• 5+ years of professional Java development experience.
• Deep knowledge of Java 17+ and Spring Boot.
• Experience building RESTful APIs and relational databases.
• Familiarity with cloud-native environments, containers, Kubernetes, and CI/CD.
• Swedish language skills.

Responsibilities

• Design, develop, and maintain backend services and APIs using Java and Spring Boot.
• Develop scalable, secure, and resilient microservices architectures.
• Contribute to system design, technical roadmaps, and architectural decisions.
• Collaborate with cross-functional teams to deliver high-quality software solutions.
• Improve performance, maintainability, and operational stability of platforms.
• Participate in code reviews, technical discussions, and mentoring of other developers.
• Support CI/CD practices, automated testing, and DevOps workflows.
• Ensure solutions meet security, compliance, and regulatory requirements.

Skills

Java

Spring Boot

REST APIs

Agile

Design patterns

Swedish language

Tools

Git

CI/CD pipelines

Kubernetes

PostgreSQL

SQL Server

Job description

Koda Tech in Sweden is seeking a Senior Java Developer to design, develop, and modernise enterprise-grade applications. You will work with architects, product teams, and stakeholders to build secure, scalable backend services using Java Spring Boot and REST APIs.

You will contribute to cloud-native architectures, CI/CD practices, and secure identity and authentication standards, while mentoring peers and improving system reliability and performance in a fast-paced engineering team.