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Offer summary
(Summary generated by AI based on the full job description)
The project involves building a real-time data streaming platform in the logistics sector, using Apache Flink, Kafka/Confluent and event-driven architecture. Responsibilities include designing and implementing streaming solutions, developing data pipelines, Schema Registry integration, managing components on Kubernetes, and participating in CI/CD and GitOps processes. Required skills include Flink SQL, Stateful Stream Processing, Flink Kubernetes Operator and experience with Avro, Kafka and production Kubernetes environments.
Data Engineer (Apache Flink & Kafka / Confluent Platform)
Company: SQUARE ONE RESOURCES sp. z o.o.
from: 22 May 2026
to: 21 June 2026
130 - 160 złnet (+ VAT)/ hr.B2B contract (full-time)
Offer parameters
level:mid • senior
working mode:remote
Warszawa, Mokotów
Requirements
Expected technologies
Apache Flink
Flink SQL
Kafka
Flink Kubernetes
Confluent Platform
Schema Registry
Kubernetes
Optional technologies
AsyncAPI
Kafka Connect SMT plugins
Our requirements
- Strong commercial experience with Apache Flink, including:
- Flink SQL
- Stateful stream processing
- Flink Kubernetes Operator
- Proven experience with Kafka / Confluent Platform ecosystems
- Hands-on knowledge of Avro and Schema Registry
- Practical experience with Kubernetes in production environments
- Experience in building or maintaining streaming data architectures
- Strong understanding of distributed systems and event-driven architecture
- Ability to work independently in a remote delivery model
Optional
- Experience with AsyncAPI
- Development of Kafka Connect SMT plugins
- Experience with XML-to-Avro transformations
- Knowledge of GitOps and CI/CD pipelines (e.g., ArgoCD, Jenkins, GitHub Actions)
- Exposure to agentic AI engineering / AI-assisted software delivery practices
Your responsibilities
- Design and implement real-time streaming solutions using Apache Flink (including Flink SQL and Stateful Stream Processing)
- Develop and maintain data pipelines on Kafka / Confluent Platform
- Build and integrate Kafka Connect SMTs, including XML-to-Avro transformation logic
- Implement and maintain Schema Registry integration (Avro-based schemas)
- Develop Flink-based filtering and projection frameworks for streaming data
- Contribute to consumer self-service workflows using YAML-based configuration
- Support deployment and orchestration of streaming components on Kubernetes (including Flink Kubernetes Operator)
- Collaborate in designing and implementing CI/CD and GitOps-based delivery pipelines
- Actively participate in an AI-assisted / agentic engineering delivery model
About the project
We are seeking an experienced consultant to join a high-priority initiative in the logistics sector focused on building and extending a real-time data streaming platform. The project leverages modern event-driven architecture based on Apache Flink and Kafka/Confluent technologies.
The engagement is initially planned for 3 months, with a strong likelihood of extension for an additional 6 months depending on delivery outcomes and project roadmap.
This is how we organize our work
This is how we work
at the client's site
This is how we work on a project
- Continuous Deployment
- Continuous Integration
SQUARE ONE RESOURCES sp. z o.o.
At Square One Poland we link IT experts with the business. With over 25 years of experience, we specialize in recruitment processes on a global scale. Despite years of experience, we still have a startup DNA and this is our advantage. Our offices are located in London and Warsaw, however, we can reach clients from all over the world, from start-ups to big worldwide corporations.
This is how we work
Data Engineer (Apache Flink & Kafka / Confluent Platform)
130–160 zł / hr. (B2B)
I apply to:
SQUARE ONE RESOURCES sp. z o.o.
Warszawa, Mokotów
Need more information?
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