12d 10h ago
Senior Java Developer
Twinslash·Java
🏢Hybrid
|Kraków, Polandkafkajavadistributed_systemsgcp+2
Senior Java Developer
Twinslash | Java
Hybrid
Full Time
Poland, Kraków
Source not independently verified
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#vacancy #Kafka #Java #job #Poland ##Senior #backend #Kraków
📌Twinslash
🚀 We’re Hiring: Senior Java Developer (Kafka)
🌍 Location: Hybrid — Kraków, Poland
📅 Start: ASAP
⚠️ We are looking for a Senior Java Developer to join an international team building high-performance, cloud-native backend solutions and real-time event-driven platforms.
🛠 Key Skills
• Core Java
• Apache Kafka & Kafka Streams
• REST APIs
• Test-Driven Development (TDD)
• MongoDB
• Google Cloud Platform (GCP)
• Distributed Systems & Scalable Architectures
• Agile Development
• Fluent English (B2+)
📋 Responsibilities
• Design, develop, and maintain high-performance backend services using Java
• Build and enhance event-driven, real-time streaming solutions with Apache Kafka
• Develop and maintain robust REST APIs supporting critical business processes
• Contribute to cloud-native applications running on Google Cloud Platform (GCP)
• Write clean, scalable, and maintainable code following TDD principles
• Collaborate with architects, business analysts, and distributed engineering teams
• Support platform modernization, scalability improvements, and performance optimization
• Participate in technical design, code reviews, testing, and production support
• Investigate and resolve complex technical and production issues
• Promote engineering best practices and continuous improvement across the team
🎯 Requirements
• Strong commercial experience with Core Java development
• Hands-on experience with Apache Kafka and Kafka Streams
• Experience designing and developing REST APIs
• Strong knowledge of Test-Driven Development (TDD) and automated testing
• Experience working with MongoDB
• Experience developing cloud-native solutions on Google Cloud Platform (GCP)
• Strong understanding of distributed systems, software design patterns, and scalable architectures
• Ability to solve complex technical problems independently
• Experience working in Agile, globally distributed teams
• Strong communication and collaboration skills
• Fluent English (B2+)
➕ Nice to Have
• Scala
• Spring Boot, Micronaut, Spring WebFlux
• Terraform, Docker, GKE, Cloud Run
• CI/CD tools such as Jenkins or TeamCity
• Experience with real-time, high-throughput systems
• Background in capital markets, trading systems, risk management, or market data platforms
📍 Work Format
Hybrid position based in Kraków, Poland.
💬 Interested or know someone who fits? Reach out directly: @yanablagodarova
📌Twinslash
🚀 We’re Hiring: Senior Java Developer (Kafka)
🌍 Location: Hybrid — Kraków, Poland
📅 Start: ASAP
⚠️ We are looking for a Senior Java Developer to join an international team building high-performance, cloud-native backend solutions and real-time event-driven platforms.
🛠 Key Skills
• Core Java
• Apache Kafka & Kafka Streams
• REST APIs
• Test-Driven Development (TDD)
• MongoDB
• Google Cloud Platform (GCP)
• Distributed Systems & Scalable Architectures
• Agile Development
• Fluent English (B2+)
📋 Responsibilities
• Design, develop, and maintain high-performance backend services using Java
• Build and enhance event-driven, real-time streaming solutions with Apache Kafka
• Develop and maintain robust REST APIs supporting critical business processes
• Contribute to cloud-native applications running on Google Cloud Platform (GCP)
• Write clean, scalable, and maintainable code following TDD principles
• Collaborate with architects, business analysts, and distributed engineering teams
• Support platform modernization, scalability improvements, and performance optimization
• Participate in technical design, code reviews, testing, and production support
• Investigate and resolve complex technical and production issues
• Promote engineering best practices and continuous improvement across the team
🎯 Requirements
• Strong commercial experience with Core Java development
• Hands-on experience with Apache Kafka and Kafka Streams
• Experience designing and developing REST APIs
• Strong knowledge of Test-Driven Development (TDD) and automated testing
• Experience working with MongoDB
• Experience developing cloud-native solutions on Google Cloud Platform (GCP)
• Strong understanding of distributed systems, software design patterns, and scalable architectures
• Ability to solve complex technical problems independently
• Experience working in Agile, globally distributed teams
• Strong communication and collaboration skills
• Fluent English (B2+)
➕ Nice to Have
• Scala
• Spring Boot, Micronaut, Spring WebFlux
• Terraform, Docker, GKE, Cloud Run
• CI/CD tools such as Jenkins or TeamCity
• Experience with real-time, high-throughput systems
• Background in capital markets, trading systems, risk management, or market data platforms
📍 Work Format
Hybrid position based in Kraków, Poland.
💬 Interested or know someone who fits? Reach out directly: @yanablagodarova
Required Skills
kafkajavadistributed_systemsgcpmongodbrestapi
Required Languages
🇬🇧 English
Key competency: Java