Jobs · justjoinit
Backend Engineer - Java
Keystone AI · Stockholm City · Posted 1d ago
About the role
Develop backend services using Java in a remote setting.
The Data Infrastructure PA enables the company to solve complex and critical data engineering problems by providing platforms and tooling for the production, management, and consumption of high-quality data. We're looking for an engineer to support hands-on implementation and migration work as we evolve our data processing stack. This is a high impact and execution-focused engagement — you'll be contributing to company wide migration efforts and platform development. What You'll Work On You'll be embedded in a team in Data Infrastructure PA, contributing to hands-on engineering work. This includes large-scale pipeline migrations — validating performance and cost outcomes and helping move workloads to our evolving stack — as well as contributing to platform development across our Flink platform, Lakehouse architecture and beyond, as our priorities evolve. What We're Looking For You have solid, hands-on experience in backend engineering and are comfortable jumping into an existing platform codebase and making meaningful contributions quickly. Specifically: Strong Java development skills, with experience in data platform or data engineering contexts Practical experience with at least one JVM-based data processing framework — Flink experience is a plus; Beam, Dataflow, or Spark also relevant Comfortable with SQL and cloud data analytics platforms, particularly BigQuery DevOps is part of your day-to-day: you work with cloud infrastructure, containerised applications, and are familiar with Kubernetes basics Experience working with data engineering pipelines in Scala and/or Python You write quality code and understand what it means to ship reliably in a production environment You can work autonomously in an ambiguous environment and move quickly without waiting to be directed Nice to Have Prior experience with large-scale pipeline migrations Familiarity with cost optimisation in cloud data processing workloads Job Posting Start Date: 2026-05-18 Job Posting End Date: 2026-11-27
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FAQ
Is the Backend Engineer - Java role at Keystone AI remote?+
This Backend Engineer - Java position is listed as remote (Stockholm City).
What is the salary for the Backend Engineer - Java role at Keystone AI?+
The listing states Estimated 23k-38k PLN.
What seniority level is this Backend Engineer - Java role?+
This is a senior level position.
How do I apply for the Backend Engineer - Java role at Keystone AI?+
Use the "Apply on justjoinit" button to open the original posting on justjoinit, where you can submit your application directly to Keystone AI.