Java Backend Developer

Why should I Apply:

At Sonar, we’re a group of brilliant, motivated, and driven professionals working hard to help organizations build responsible, secure, high-quality code quickly and systematically. We build solutions that don’t just solve symptoms of problems – we fix problems at the source – source code, to be specific.

We have a dynamic culture with employees worldwide and hub offices in the USA, Switzerland, the UK, Singapore, and Germany. We believe team members should have the opportunity to come to work every day, work on a product they are proud of, love what they do, and feel energized by their peers. With our roots deep in the open source community, we’re all about the mission: provide solutions that deliver Clean Code.

The impact you will have 

As a member of one of our engineering teams, you'll be a key player in making Sonar product the best tools for Clean Code (Code Quality and Security), providing new features that help our users write better software and delivering high-quality, amazingly powerful and popular open-source product.

By working with us, you will have the opportunity to see your features come to life in Production, with short iteration loops. Having the roadmap and business priorities in mind, you will be able to choose what you focus on.

Joining our teams, you will bring your experience and expertise to bring our product to its next stage of evolution to delight our users and customers.

As part of the role, you will participate in an on-call rotation to provide timely support and address any critical system issues that may arise outside of regular working hours.

On a daily basis, you will

• Work with Product Managers and UX designers to specify new features and improve the product
• Develop those new features with the end user in mind, write Clean Code, following Agile methodologies
• Participate in design and architecture discussions and decisions
• Interact with our community on our product forum to support them and integrate their feedback
• Contribute to the definition and implementation of the team's short and long-term goals
• Do sprints with an integrated team (Backend, Frontend, Ops)
• Push and monitor your new features into production (For SonarCloud only)
• Help to solve production problems related to features you worked on (For SonarCloud only)

Required Technical Skills

• +7 years of experience as a Java Backend Developer
• Ability to write Clean Code in Java: interest in maintainability, segregation of responsibilities, readability, testability
• Experience in writing meaningful automated tests
• Providing constructive code reviews
• Experience with relational RDBMS (such as Postgres, SQL Server, Oracle)
• Tooling: Knowledge of build tools (Maven or Gradle); Experience with any version control system (we use git, and you can learn it when you join!)




Nice to have:




• A first experience on AWS, ideally developing a cloud-native application
• Knowledge of Python
• Experience with API design and third-party integrations
• Experience with data-intensive applications

Required Soft Skills

• Taking initiative and having the ability to lead a subject from beginning to end
• Open-minded and very positive can-do attitude
• Comfortable in dealing with change and complexity
• Self-confident enough to challenge the status quo as well as to give & receive feedback




Candidates to be considered must be located near an office (Bochum, Annecy, Geneva) or open to relocating prior to starting. We have a hybrid working policy.

Our tech stack

• Java 17, Spring, React, ElasticSearch
• Usage of Lambda, ECS, EC2, OpenSearch and Aurora

Why you will love it here:

• Our culture and mission set us apart. We have a dynamic work culture that values respect and kindness – and embraces the right to fail (and get right back up again!). We believe that the best idea wins and everyone has a voice.

• We believe that great people make a great company. We value people skills as much as technical skills and strive to keep things friendly and laid-back while still being passionate leaders in our domains. Our 550+ SonarSourcers from 33 different nationalities can relate!

• We embrace work-life balance. It is important to maintain a healthy work-life balance. This is why we have a flexible work policy that includes remote and in-office hybrid work (minimum three days a week in the office - Monday/Tuesday/Thursday).

• We have a growth mindset. We love to learn and believe that continuous education is critical to our success. In an ever-changing industry, new skills are a must, and we're happy to help our team acquire them.

We prioritize Diversity, Equity, and Inclusion:

At Sonar, we are a global workforce and recognize the value of different backgrounds, and global cultures.

We are committed to creating a diverse work environment and are proud to be an equal-opportunity employer. All qualified applicants will be considered for employment without regard to race, colour, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status.

All offers of employment at Sonar are contingent upon the clear results of a comprehensive background check conducted prior to the start date.

Please note that applications submitted through agencies or third-party recruiters will not be considered.