Senior Developer (Java/Kotlin)

Explipro Group AB; Göteborgs kommun; On-site; SEK 900,000 - 1,200,000; Full time

Job summary

Explipro Group AB is seeking an experienced Backend Engineer to design, build and optimize cloud-native backend services and APIs. You will contribute to resilient microservice design and translate complex business requirements into high-performance solutions.

The role is on-site in Gothenburg, Sweden, with a cross-functional agile team and global scale. Requirements include 5+ years on the JVM with Java and Kotlin, experience with Kafka, PostgreSQL, Docker, Kubernetes, and Azure.

Qualifications

• 5+ years of experience building backend applications on JVM with Java and Kotlin.
• Strong knowledge of microservices architecture and secure API design (REST/GraphQL).
• Experience with data streaming and databases (Kafka, PostgreSQL).
• Experience with containerization and cloud environments (Docker, Kubernetes, Azure).
• Fluency in English; Swedish is a plus; must reside in Sweden for onboarding.

Responsibilities

• Build and optimize cloud-native backend services and APIs.
• Set standards for resilient microservice design.
• Translate complex business requirements into high-performance technical solutions.

Skills

Java

Kotlin

JVM

Microservices

API design

REST

GraphQL

Secure APIs

Kafka

PostgreSQL

Data streaming

Docker

Kubernetes

Azure

English

Elasticsearch

APM

Prometheus

Grafana

GitHub Actions

Jenkins

Authentication

Authorization

Performance optimization

SLO/SLI

Tools

Docker

Kubernetes

Azure

Job description

About the Role:

We are seeking an experienced Backend Engineer to help build and optimize the next generation of cloud-native connectivity solutions. You will join a diverse, cross-functional team working in agile sprints, contributing to state-of-the-art backend services and APIs that power global digital services used by millions of customers daily. The job includes building brand-new features, setting the standard for resilient microservice design, and converting complex business requirements into high-performance technical solutions.

Requirements:

• +5 years of professional experience developing complex backend applications on the JVM platform using Java and Kotlin.
• Strong knowledge of microservices architecture, secure API design (REST/GraphQL), and hosting resilient services.
• Solid understanding of data streaming and databases, specifically Kafka and Postgres.
• Experience with automated workflows, containerization, and cloud environments using tools like Docker, Kubernetes, and Azure.
• Fluency in English, both spoken and written (Swedish is a major plus).
• Highly prioritized: Currently residing in Sweden with a valid, pre-existing Swedish work permit and available for a quick onboarding/short notice period.

Nice to Have:

• Experience with search and monitoring tools such as Elasticsearch (with APM), Prometheus, and Grafana.
• Familiarity with CI/CD automation tools like GitHub Actions and Jenkins.
• Understanding of authentication and authorization solutions, performance optimization, and using SLO/SLI to drive improvements.

Location:

On-site in Gothenburg, Sweden. Please note that this specific assignment requires being 100% on-site at the customer's office every day of the workweek; remote work is not available.

Why Join Explipro?

Explipro values helpfulness and simplicity in the workplace. We are looking for individuals who share our commitment to integrity, transparency, and caring for each other. By joining us, you will be part of a supportive team that values continuous learning and personal growth. We offer competitive salaries, stable permanent employment conditions, and numerous benefits to support your professional journey.