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Senior Java Backend Engineer | Kafka & AWS

Location: 

Cluj, RO Sibiu, RO Timisoara, RO Bosnia remote, BA Bucuresti, RO Serbia remote, RS Remote, RO Brasov, RO Iasi, RO Novi Sad, RS

Who we are

 

We are looking for an experienced Senior Java & Kafka Engineer to join a team building modern, cloud-based, data-driven applications and real-time streaming solutions. We are particularly interested in engineers who sit at the intersection of backend software engineering and data streaming.

The right profile should be comfortable writing substantial Java business logic, while also understanding how applications interact through Kafka-based asynchronous and event-driven architectures.

This is not a pure DevOps role. The position involves hands-on software engineering and the development of business logic using Java, rather than focusing primarily on infrastructure management, CI/CD pipelines, or platform operations.

At the same time, this is more than a traditional Backend Java role. The focus goes beyond standard REST/CRUD applications, with a strong emphasis on event-driven architectures, real-time data processing, Kafka-based integrations, and cloud-native solutions running on AWS.

The ideal candidate has a strong Java engineering background combined with practical experience designing and implementing solutions using Apache Kafka. Experience with Confluent Kafka / Confluent Platform is highly desirable but not mandatory.

 

What you'll be doing

 

  • Design, develop, and maintain Java-based applications and services supporting data-driven business processes
  • Build and evolve event-driven and real-time data streaming architectures using Apache Kafka
  • Develop Kafka producers, consumers, event-processing components, and integration services
  • Design reliable and scalable communication patterns between distributed systems
  • Build cloud-native solutions and deploy/integrate applications within AWS environments
  • Implement business logic around asynchronous events and streaming data
  • Ensure solutions are scalable, resilient, maintainable, and production-ready
  • Troubleshoot application, integration, and data-streaming issues across distributed environments
  • Contribute to technical design and architectural discussions around Java, Kafka, AWS, and event-driven systems
  • Collaborate with software engineers, architects, DevOps/cloud engineers, and other technical stakeholders
  • Apply software engineering best practices, including automated testing, code reviews, observability, and CI/CD

    What you'll bring along

 

  • BSc/MSc in Computer Science or related field
  • Minimum 6-8+ years of experience
  • Strong hands-on experience with Java and modern Java development
  • Solid experience with Apache Kafka in production environments
  • Good understanding of: Kafka producers and consumers; topics and partitions; consumer groups and offsets; event-driven architecture; asynchronous processing; failure handling and resiliency
  • Experience designing or developing distributed, event-driven systems
  • Practical experience with AWS and cloud-based application environments
  • Experience developing APIs and integration services
  • Good understanding of microservices and distributed application architectures
  • Experience with automated testing, Git, CI/CD, and modern software engineering practices
  • Strong analytical and problem-solving skills
  • Nice to Have:
  • Experience with Confluent Kafka / Confluent Platform
  • Experience with Kafka Streams
  • Experience with Schema Registry and Avro or similar serialization approaches
  • Experience with AWS services commonly used within event-driven/cloud-native architectures
  • Infrastructure-as-Code experience, such as Terraform
  • Containerization and orchestration experience with Docker and Kubernetes
  • Knowledge of monitoring and observability for distributed systems
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What’s in it for you


✔ New beginnings can be a challenge. We promise a smooth integration and a supportive mentor
✔ Pick your working style: choose from Remote, Hybrid or Office work opportunities
✔ Early bird or night owl? Our projects have different working hours to suit your needs
✔ Nobody is born an expert. Sharpen your tech skills with our sponsored certifications, trainings and top e-learning platforms
✔ We want you to stay healthy! Enjoy our Private Health Insurance ⁠– it’s custom-made for you
✔ A clear mind is a healthy mind. Attend individual coaching sessions or go one step further by joining our accredited Coaching School
✔ Make the most of our epic parties or themed events – they’re lovingly designed for our people and their families

✔ NTT DATA recruiters will never ask job seekers and candidates for payment or banking information during the recruitment process, for any reason. Please remain vigilant of third parties that may try to impersonate NTT DATA recruiters, either in writing or by phone, in an attempt to deceptively obtain personal data or money from you. All email communications from an NTT DATA recruiter will be associated with an @nttdata.com email address. NTT DATA will not use any non-NTT DATA or personal email domains (Gmail, Yahoo, etc.) or personal communication channels (WhatsApp, Facebook etc) at any time during the recruitment process. If you suspect any fraudulent activity, please contact us.


NTT DATA Romania is an equal opportunity employer and considers all applicants regardless to race, color, religion, citizenship, national origin, ancestry, age, sex, sexual orientation, gender identity, genetic information, physical or mental disability, veteran or marital status, or any other characteristic protected by law. We are committed to creating a diverse and inclusive environment for all employees.


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What’s in it for you

  • New beginnings can be a challenge. We promise a smooth integration and a supportive mentor
  • Pick your working style: choose from Remote, Hybrid or Office work opportunities
  • Early bird or night owl? Our projects have different working hours to suit your needs
  • Nobody is born an expert. Sharpen your tech skills with our sponsored certifications, trainings and top e-learning platforms
  • We want you to stay healthy! Enjoy our Private Health Insurance ⁠– it’s custom-made for you
  • A clear mind is a healthy mind. Attend individual coaching sessions or go one step further by joining our accredited Coaching School
  • Make the most of our epic parties or themed events – they’re lovingly designed for our people and their families

 

Make this the place you grow

Your unique talent is what matters. NTT DATA Romania is an equal opportunity employer and considers all applicants regardless to race, color, religion, citizenship, national origin, ethnicity, age, gender, sexual orientation, gender identity, genetic information, physical or mental disability, veteran or marital status, or any other characteristic.

 
Document

Third parties fraudulently posing as NTT DATA recruiters

NTT DATA recruiters will never ask job seekers and candidates for payment or banking information during the recruitment process, for any reason. Please remain vigilant of third parties that may try to impersonate NTT DATA recruiters, either in writing or by phone, in an attempt to deceptively obtain personal data or money from you. All email communications from an NTT DATA recruiter will be associated with an @nttdata.com email address. NTT DATA will not use any non-NTT DATA or personal email domains (Gmail, Yahoo, etc.) or personal communication channels (WhatsApp, Facebook etc) at any time during the recruitment process. If you suspect any fraudulent activity, please contact us.


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