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.

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