Senior Java / Kafka Developer with French

Position Description

We are looking for a Senior Java Developer with strong hands-on expertise in Java and Apache Kafka to join our team working on complex enterprise applications in the telecommunications domain.

The ideal candidate has good working proficiency in French, solid experience with event-driven and integration-heavy applications and is comfortable working in technically complex environments involving multiple interconnected systems and external partners.

In this role, you will develop, maintain and evolve Java-based applications with Kafka at the core of their integration architecture. You will contribute to application modernization and technical evolution while collaborating closely with technical and functional teams in a French-speaking environment.

Your future duties and responsibilities

• Develop, maintain and evolve backend applications using Java;
• Design, develop and troubleshoot Kafka-based integrations and data flows;
• Work with relational databases and write efficient SQL queries for data access, analysis and troubleshooting;
• Analyze and understand existing codebases, technical documentation, application flows and system integrations;
• Collaborate with French-speaking functional and technical stakeholders to understand requirements, business rules and their technical impact;
• Investigate integration issues across interconnected systems and collaborate with partner teams to identify and resolve root causes;
• Participate in code reviews, unit and integration testing, CI/CD and software delivery activities;
• Contribute to application upgrades, technical modernization and migration activities;
• Ensure solutions follow clean code principles and meet quality, maintainability and performance standards;
• Investigate technical issues, perform root-cause analysis and implement corrective solutions when required.
  
  

Required Qualifications To Be Successful In This Role

• 5+ years of hands-on experience in Java enterprise application development;
• Strong hands-on experience with Apache Kafka in production environments;
• Experience developing and troubleshooting event-driven or integration-heavy applications;
• Strong knowledge of SQL and relational databases;
• Experience working with Linux/Unix environments;
• Hands-on experience with Git and CI/CD pipelines;
• Good understanding of software development best practices and design patterns;
• Ability and interest in understanding complex functional and technical domains beyond the purely technical implementation;
• Good working proficiency in French (B2 or above), both spoken and written – mandatory.
  
  

Nice to have:

• Experience with Kafka Streams and Kafka Connect;
• Experience with Apache/Tomcat;
• Experience with Maven and/or Gradle;
• Experience with Docker and Ansible;
• Experience with code quality and security tools such as SonarQube and Checkmarx;
• Experience with monitoring and observability tools such as Prometheus and Grafana;
• Experience with Jira/XRAY;
• Experience maintaining or modernizing existing enterprise applications;
• Previous experience with Kafka upgrades or migration projects;
• Previous experience in Telecom, OSS/BSS or network-related applications is a strong advantage.
  
  

What you’ll find at CGI:

• Employee Share Purchase Plan
  
  

Invest alongside CGI through a share purchase plan that is partially co-funded by the company. You can access your investment whenever you choose.

• Healthcare & Insurance Coverage
  
  

You and your family are covered through a healthcare and dental subscription, along with life insurance that includes medical coverage for your children.

• Practical Benefits, Easy to Use
  
  

Our online benefits platform brings everything together in one place—from meal vouchers and tickets to medical services, online courses, and access to hobby and leisure activities.

• Learning That Matches Your Interests
  
  

Use CGI Academia, our internal learning platform, to build skills relevant to your role and future plans. You can also learn up to nine languages through goFLUENT, included in the platform.

• Confidential Mental Health Support
  
  

Through the Member Assistance Program (MAP), you have access to confidential professional support for both personal and work-related situations, available at no cost.

• Books Delivered to the Office
  
  

With Bookster, you can borrow from a modern public library, with books delivered directly to the office.

• Referral Program
  
  

If you recommend someone who joins CGI, you’ll receive a referral bonus—our way of thanking you for helping us grow the team.

• Volunteering, When You Choose
  
  

CGI for Good connects you with volunteering initiatives where you can contribute to causes that matter to you.

• Time Off
  
  

Annual leave ranges from 21 to 26 days, depending on your level of seniority.

• Office Location
  
  

Our Bucharest office is close to Grozavesti metro station, offering easy access and a calm working environment.

• Hybrid Work Model
  
  

We work in a hybrid setup, combining time at the office with the flexibility of working remotely.

Together, as owners, let’s turn meaningful insights into action.

Life at CGI is rooted in ownership, teamwork, respect and belonging. Here, you’ll reach your full potential because…

You are invited to be an owner from day 1 as we work together to bring our Dream to life. That’s why we call ourselves CGI Partners rather than employees. We benefit from our collective success and actively shape our company’s strategy and direction.

Your work creates value. You’ll develop innovative solutions and build relationships with teammates and clients while accessing global capabilities to scale your ideas, embrace new opportunities, and benefit from expansive industry and technology expertise.

You’ll shape your career by joining a company built to grow and last. You’ll be supported by leaders who care about your health and well-being and provide you with opportunities to deepen your skills and broaden your horizons.

That same commitment to fairness extends to how we use technology. To support our recruitment team, AI tools may be used to help assess applications though they never replace human judgement. All hiring decisions remain entirely in the hands of our recruitment professionals.

Come join our team—one of the largest IT and business consulting services firms in the world.