Senior Platform Developer – Kafka | Fintech | Stockholm (Hybrid)
Justera Group is a trusted Swedish IT consulting and recruitment partner, delivering tailored technology solutions and top talent to help businesses innovate and grow.
About Justera Group
Justera Group AB is a leading Swedish IT consulting firm with great experience specializing in building high-performing technology teams and delivering end-to-end IT solutions. Led by dynamic female executives, Justera Group focuses on helping businesses harness the power of digital technologies to continuously evolve in today’s rapidly changing economy. The company has deep expertise in IT consultancy, software development, and recruitment services, providing clients with purpose-driven, well-trained consultants who consistently deliver efficient and effective results. Justera Group manages the entire talent lifecycle, from hiring to ongoing management, ensuring the right fit for each project on time and within budget. With their strong commitment to quality, collaboration, and client success, Justera Group is a trusted partner for technology innovation across Sweden.
About the Role:
As a Senior Platform Developer with a strong focus on Kafka, you will join a highly experienced team responsible for operating, maintaining, and evolving a critical event-streaming platform within a banking/fintech environment. The role centers on managing an existing on-prem Kafka cluster while leading its migration to Confluent Cloud. This long-term assignment sits within IT Infrastructure & Operations, where high availability, stability, scalability, and performance are business-critical.
Key Responsibilities:
Operate, maintain, and further develop the existing on-prem Kafka platform
Plan, execute, and support the migration from on-prem Kafka to Confluent Cloud
Ensure high availability, robustness, scalability, and performance of the Kafka ecosystem
Monitor, troubleshoot, and optimize Kafka clusters and data pipelines
Collaborate closely with development, infrastructure, and operations teams
Contribute both hands-on and strategically to platform improvements and future architecture
Requirements:
Many years of hands-on experience with Apache Kafka, including both operations and development
Proven experience with cloud migration, preferably from on-prem environments to Confluent Cloud
Strong understanding of distributed systems, event-driven architectures, and data streaming pipelines
Solid background in Java development, ideally within fintech or other regulated environments
Experience working in complex, high-availability production environments
Familiarity with CI/CD pipelines, DevOps practices, and containerized platforms such as Kubernetes is meriting
Ability to work independently while contributing effectively within a senior, cross-functional team
Full professional proficiency in Swedish
Availability to work on-site in Stockholm 2–3 days per week
What We Offer:
A dynamic and innovative workplace driving advancements in cutting-edge robotic technologies
The opportunity to collaborate with talented cross-functional teams on meaningful and impactful projects
Competitive compensation and comprehensive benefits package
A supportive culture that fosters continuous learning, growth, and professional development
Flexible hybrid working model for an optimal work-life balance
25 days of annual leave to recharge and relax
An annual wellness allowance of 3,500 SEK to support your health and wellbeing
- Department
- Tech
- Locations
- Stockholm
- Remote status
- Hybrid
About Justera Group
Why Join Justera Group?
At Justera Group, we believe work is more than just a job – it’s a journey of growth, collaboration, and shared success. Our culture is built on trust, innovation, and balance, making us a place where people feel inspired to do their best work.
✨ A Culture That Inspires
We foster a supportive and inclusive environment where every voice matters. Ideas are celebrated, creativity is encouraged, and teamwork is at the heart of everything we do.
🌍 Hybrid Flexibility
Work-life balance is more than a promise – it’s our practice. With our hybrid model, you get the best of both worlds: meaningful in-person collaboration and the flexibility to thrive from anywhere.
💙 Employee Wellness First
Your well-being is our priority. From wellness initiatives to mental health support, we are committed to creating a workplace where you feel valued, energized, and cared for.
📈 Grow Together, Succeed Together
At Juster AGroup, your career path is filled with opportunities to learn, grow, and shine. We invest in your development because when you succeed, we all succeed.
Join us and be part of a community where people come first, ideas turn into impact, and together, we create a future we’re proud of.
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