Life at Ness
At Ness, people come first. Here, you'll be part of a vibrant team that values curiosity, innovation, and growth. We work with industry-leading clients on projects that truly make an impact while supporting every team member in carving out their unique career path. With resources for learning, certifications, and hands-on experiences, Ness offers you more than just a job—it’s a place where your ideas, ambition, and well-being matter.
The Role
We are looking for an experienced Java Developer to join a project focused on integrating third-party systems for large-scale data collection and processing.
Salary: from 2.300 EUR/month, depending on skills and experience + benefits. The final offer for the selected candidate will reflect the candidate´s comprehensive assessment, skills, and past work experience.
Location: Slovakia only
What you'll do:
- Design, implement, and maintain Java-based backend services, components, and integrations
- Collaborate across a distributed Agile organization (Scrum or Kanban) to deliver outcomes
- Take ownership of high-complexity technical tasks, from design through production
- Actively support quality assurance, including test automation, integration testing, and code reviews
- Contribute to and evolve architecture, development standards, and best practices
- Participate in architectural discussions and technical decision-making
- Continuously propose and drive improvements in system design, performance, and developer experience
- Experience designing high-availability, scalable, and high-performance backend systems
- Hands-on background in high-volume data processing and distributed systems
- Solid understanding and practical use of Agile methodologies
- Experience applying Test-Driven Development (TDD) and modern QA practices
- Familiarity with CI/CD principles, pipelines, and automated delivery
- Proven ability to work effectively in a corporate, cross-functional environment
- Self-driven, resilient, and comfortable operating in complex and evolving systems
- Team-oriented mindset with the ability to influence and motivate others
- Very good command of spoken and written English
- Java 11–21 with knowledge of the JVM and language fundamentals
- Spring ecosystem: Spring Boot, Spring Web / Web Flux (nice to have), Spring Data
- Build tools: Maven and/or Gradle
- Hands-on experience with event-driven architectures
- Experience with Azure (preferable), alternatively Amazon Web Services
- Infrastructure as a code: Terraform, Ansible
- Docker and Kubernetes
- Experience with Apache Kafka (or similar message brokers)
- Strong understanding of REST APIs (gRPC is a plus)
- Experience with relational and NoSQL databases (e.g., PostgreSQL, MySQL, MongoDB (Cosmos))
- Experience with Akka (Classic or Typed) is a strong plus
- Familiarity with reactive programming (e.g., Project Reactor, Akka Streams)
- Exposure to event-driven architectures, including event sourcing
- Hands-on experience with CI/CD pipelines (GitHub Actions, GitLab CI, or Azure DevOps)
- Working knowledge of security concepts such as OAuth2, JWT, and Basic Authentication
While many of our roles involve just 2–3 steps, some client processes may include additional conversations. Regardless of the path, we aim to keep every step transparent and respectful of your time.
Ready to Start Your Journey?
Skills Required
- Experience designing high-availability, scalable, and high-performance backend systems
- Hands-on experience with high-volume data processing and distributed systems
- Solid understanding and practical use of Agile methodologies
- Experience applying Test-Driven Development and modern QA practices
- Familiarity with CI/CD principles, pipelines, and automated delivery
- Ability to work effectively in a corporate, cross-functional environment
- Strong command of spoken and written English
- Java 11-21, JVM, and language fundamentals
- Spring ecosystem, including Spring Boot and Spring Data
- Maven and/or Gradle
- Experience with event-driven architectures
- Experience with Azure or Amazon Web Services
- Terraform and Ansible
- Docker and Kubernetes
- Apache Kafka or similar message brokers
- Strong understanding of REST APIs
- Experience with relational and NoSQL databases
- Spring WebFlux
- gRPC
- Akka
- Reactive programming with Project Reactor or Akka Streams
- Event sourcing
- GitHub Actions, GitLab CI, or Azure DevOps
- OAuth2, JWT, and Basic Authentication
- Familiarity with AI technologies
Ness Digital Engineering Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Ness Digital Engineering and has not been reviewed or approved by Ness Digital Engineering.
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Healthcare Strength — Healthcare coverage is often positioned as comprehensive, with medical and dental described as strong in North America. Wellness programs are also emphasized as part of the core package.
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Flexible Benefits — Flexible or remote work options are frequently highlighted as part of the overall rewards experience. Learning and upskilling support is repeatedly framed as a meaningful benefit tied to the employee value proposition.
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Fair & Transparent Compensation — Pay is characterized as generally “okay to good,” with stronger packages appearing for certain senior roles and some U.S. positions. This suggests compensation can be market-aligned when role level and geography are favorable.
Ness Digital Engineering Insights
What We Do
Ness Digital Engineering, acquired by global investment firm KKR in 2022, is a full-lifecycle digital engineering firm offering digital advisory through scaled engineering services. Headquartered in New York, Ness serves our customers across 11 innovation hubs in the US, Eastern Europe, and India. Combining our core competence in engineering with the latest in digital strategy and technology, we seamlessly manage Digital Transformation journeys from strategy through execution to help businesses thrive in the digital economy. For more information, visit www.ness.com
