Senior Java Developer

Ciklum is looking for a  Senior Java Developer to join our team full-time in the Czech Republic.

We are a custom product engineering company that supports both multinational organizations and scaling startups to solve their most complex business challenges. With a global team of over 4,000 highly skilled developers, consultants, analysts and product owners, we engineer technology that redefines industries and shapes the way people live.

About the role:

As a Senior Java Developer, become a part of a cross-functional development team engineering experiences of tomorrow.

Responsibilities:

• Back-End development to meet business needs and implement software components according to technical and delivery standards
• Taking part in the decision-making process in design architecture, solution development, code review
• Develop and review feature design documents and provide inputs/updates to specifications for the solution
• Design and implement a set of various types of code tests (eg unit, modules, integration, etc.)
• Participate in the team activities according to the delivery methodology (eg daily meetings, planning, retrospectives etc.)
• Communicate with Technical Lead, Architects, QAs, developers and other colleagues and stakeholders
• Delivering the product roadmap and plans
• To use high coding standards, software best practices and write highly testable, automatable and performant code over the whole SDLC
• Coach/supervise middle/junior engineers by demand of the project

Requirements:

We know that sometimes, you can't tick every box. We would still love to hear from you if you think you're a good fit!

• Software Development:
  • In-depth proficiency level in Java
  • Good knowledge in Computer Science and Computing Theory (eg paradigm & principles, data structures, integration and design patterns, security best practices), network interactions conventions and protocols
  • Practical experience with:
    • Integrations with different 3rd party systems and APIs
    • Messaging systems (especially with MQTT protocol)
    • Git (Bitbucket will be a plus)
    • Refactoring, Troubleshooting, profiling and debugging of applications
• Software Design:
  • Experience with creating software architecture and design for complex applications
  • Use of best practices and patterns during application design and implementation
  • Hands-on experience with different architectural styles (eg modular monolith, services architecture, event-driven, etc.)
• Quality Assurance:
  • Good knowledge of the code testing theory
  • In-depth proficiency level in JUnit, Mockito
  • Previous participation in constant application quality improvements: conducting code reviews, using and analyzing code quality metrics, and monitoring
  • Experience with code inspection tools (eg SonarQube, CodeScene)
• Build and Deploy:
  • Understanding of CI/CD process
  • Hands-on experience with Continuous Integration and Deployment tools (TeamCity will be a plus)
  • Collaborates with the DevOps team to set up and configure CI/CD pipelines

Desirable:

• Experience with modular monolithic architecture
• Experience with Hazelcast
• Code development using Jetbrains IntelliJ IDEA
• Experience with code artifactory tools (jFrog)
• Experience with Java Google Web Toolkit, Java Swing
• Practical experience with application performance optimization

Personal skills:

• Communication is a key. You speak and write in English fluently or at least at upper-intermediate level
• Accountability:
  • Following the "said and done" principle
  • Accountability for the own scope of work
• Formerly:
  • Proactive in efforts to deliver results according to expectations
  • Suggesting new ideas, looking for alternative solutions
• Self-development:
  • Eager to learn and grow: curious, keen to constant self-development
  • Constantly improving own mastery
• Effective communication:
  • Ability to express ideas, thoughts and questions simply, concisely and in a structured way
• Mentoring:
  • Ability to assess tasks of less experienced colleagues
  • Skilled in providing constructive feedback

What's in it for you?

• Strong community: Work alongside top professionals in a friendly, open-door environment
• Growth focus: Take on large-scale projects with a global impact and expand your expertise
• Tailored learning: Boost your skills with internal events (meetups, conferences, workshops), Udemy access, language courses, and company-paid certifications
• Endless opportunities: Explore diverse domains through internal mobility, finding the best fit to gain hands-on experience with cutting-edge technologies
• Care: We've got you covered with company-paid medical insurance, mental health support, and financial & legal consultations
• Flexibility: Balance office and remote work to fit your rhythm
• Our Offices in the Czech Republic: We have three offices in Prague, Hradec Králové, and Zlín. There are no fixed office days—it all depends on your team's agreement. Here, you'll find a relaxed and friendly atmosphere that fosters collaboration and innovation

About us:

At Ciklum, we are always exploring innovations, empowering each other to achieve more, and engineering solutions that matter. With us, you'll work with cutting-edge technologies, contribute to impactful projects, and be part of a One Team culture that values collaboration and progress. With delivery centers in Prague, Hradec Králové, and Zlín, our Czech team delivers end-to-end solutions across industries. Here, innovation thrives through collaboration, and every idea drives our partners' success. Want to learn more about us? Follow us on Instagram  , Facebook  , LinkedIn , stop by one of our IT meetups Nalejvárna or listen to podcast    PodVocasem .

Explore, empower, engineer with Ciklum!

Experiences of tomorrow. Engineered together

Interested already? We would love to get to know you! Submit your application. Can't wait to see you at Ciklum.