Help us build the future of digital platforms across FinTech telecom and secure mission-critical systems.
Multiply Teknik & IT is growing our engineering community and expanding our capabilities in modern Java development. We work on strategically important long-term projects with leading Swedish companiesprojects that we drive influence and co-create together with our customers.
We are now looking for experienced Senior Java Full-stack Developers who want to contribute to advanced technical environments shape architectural decisions and play an important role in Multiplys continued growth.
You will also have the opportunity to provide insights integrations and technical contributions to VisFlow our internal platform for flow visualisation and operational intelligence.
About the Role
As a Senior Java Full-stack Developer at Multiply you will join a strong engineering community that collaborates across domains and industries. Your work may involve:
FinTech product development
Building scalable financial services used by thousands of companies across Swedensuch as contributing to the next-generation solutions within Fortnoxs ecosystem.
Telecom and high-performance platforms
Designing full-stack services enabling 5G policy control and working with high-load high-availability systems.
Secure and mission-critical enterprise systems
Developing modern microservice architectures in environments where security robustness and code quality are paramount.
Regardless of which project you contribute to you will influence technical direction support colleagues and work closely with product and design to create meaningful solutions.
What You Will Do
Build and evolve backend and full-stack solutions using Java17 Jakarta EE Spring and modern JavaScript frameworks (React/TypeScript or Angular).
Design and implement microservices APIs and distributed systems.
Work in Kubernetes container-based and DevOps-driven environments.
Collaborate in cross-functional teams across Sweden and globally.
Lead technical discussions and mentor developers.
Contribute to Multiplys internal engineering practices and VisFlows technical roadmap.
Support AI-assisted development and modern tooling (e.g. Amazon Kiro Copilot).
What Were Looking For
We welcome candidates with strong engineering fundamentals and deep Java experience. You may have worked in telecom FinTech enterprise systems or other complex environments.
Required Experience
510 years of experience in advanced Java development
Strong full-stack capabilities (Java JavaScript/TypeScript)
Experience with microservices CI/CD Docker/Kubernetes
Solid knowledge of REST API design testing practices
Comfortable mentoring and supporting other developers
Strong communication skills and a collaborative mindset
Meriting
Experience with telecom protocols (Diameter 5G REST)
Kotlin Angular Kafka SQL or event-driven architectures
Experience in high-security environments
Swedish language fluency
Swedish citizenship (required only for specific secure projects)
Who You Are
You enjoy solving complex problems working closely with product and design and creating solutions that have real user and business impact. You value clean architecture modern engineering practices and knowledge sharing. You are curious humble and want to grow together with a team.
Why Multiply Teknik & IT
Work with a broad range of technically challenging and meaningful projects
Become part of a senior engineering community that values craftsmanship and collaboration
Influence architecture technical strategy and engineering culture
Opportunities to work across domains: FinTech telecom enterprise systems and secure platforms
Contribute to our internal product VisFlow and shape its future capabilities
A company built on trust long-term relationships and continuous learning
A modern transparent environment that prioritizes innovation and employee growth
Help us build the future of digital platforms across FinTech telecom and secure mission-critical systems.Multiply Teknik & IT is growing our engineering community and expanding our capabilities in modern Java development. We work on strategically important long-term projects with leading Swedish com...
Help us build the future of digital platforms across FinTech telecom and secure mission-critical systems.
Multiply Teknik & IT is growing our engineering community and expanding our capabilities in modern Java development. We work on strategically important long-term projects with leading Swedish companiesprojects that we drive influence and co-create together with our customers.
We are now looking for experienced Senior Java Full-stack Developers who want to contribute to advanced technical environments shape architectural decisions and play an important role in Multiplys continued growth.
You will also have the opportunity to provide insights integrations and technical contributions to VisFlow our internal platform for flow visualisation and operational intelligence.
About the Role
As a Senior Java Full-stack Developer at Multiply you will join a strong engineering community that collaborates across domains and industries. Your work may involve:
FinTech product development
Building scalable financial services used by thousands of companies across Swedensuch as contributing to the next-generation solutions within Fortnoxs ecosystem.
Telecom and high-performance platforms
Designing full-stack services enabling 5G policy control and working with high-load high-availability systems.
Secure and mission-critical enterprise systems
Developing modern microservice architectures in environments where security robustness and code quality are paramount.
Regardless of which project you contribute to you will influence technical direction support colleagues and work closely with product and design to create meaningful solutions.
What You Will Do
Build and evolve backend and full-stack solutions using Java17 Jakarta EE Spring and modern JavaScript frameworks (React/TypeScript or Angular).
Design and implement microservices APIs and distributed systems.
Work in Kubernetes container-based and DevOps-driven environments.
Collaborate in cross-functional teams across Sweden and globally.
Lead technical discussions and mentor developers.
Contribute to Multiplys internal engineering practices and VisFlows technical roadmap.
Support AI-assisted development and modern tooling (e.g. Amazon Kiro Copilot).
What Were Looking For
We welcome candidates with strong engineering fundamentals and deep Java experience. You may have worked in telecom FinTech enterprise systems or other complex environments.
Required Experience
510 years of experience in advanced Java development
Strong full-stack capabilities (Java JavaScript/TypeScript)
Experience with microservices CI/CD Docker/Kubernetes
Solid knowledge of REST API design testing practices
Comfortable mentoring and supporting other developers
Strong communication skills and a collaborative mindset
Meriting
Experience with telecom protocols (Diameter 5G REST)
Kotlin Angular Kafka SQL or event-driven architectures
Experience in high-security environments
Swedish language fluency
Swedish citizenship (required only for specific secure projects)
Who You Are
You enjoy solving complex problems working closely with product and design and creating solutions that have real user and business impact. You value clean architecture modern engineering practices and knowledge sharing. You are curious humble and want to grow together with a team.
Why Multiply Teknik & IT
Work with a broad range of technically challenging and meaningful projects
Become part of a senior engineering community that values craftsmanship and collaboration
Influence architecture technical strategy and engineering culture
Opportunities to work across domains: FinTech telecom enterprise systems and secure platforms
Contribute to our internal product VisFlow and shape its future capabilities
A company built on trust long-term relationships and continuous learning
A modern transparent environment that prioritizes innovation and employee growth
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