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Choosing Capgemini means choosing a company where you will be empowered to shape your career in the way you’d like, where you’ll be supported and inspired by a collaborative community of colleagues around the world, and where you’ll be able to reimagine what’s possible. Join us and help the world’s leading organizations unlock the value of technology and build a more sustainable, more inclusive world. Job Description We are seeking a Senior Core Java Engineer to design, develop, and support high-performance, scalable enterprise applications. The ideal candidate will have strong expertise in Core Java, distributed systems, backend engineering, and software design principles. Key Responsibilities: Design, develop, test, and maintain robust, scalable, and highly available Java-based applications. Develop backend services, APIs, and microservices to support business-critical applications. Participate in system architecture, technical design, and code reviews to ensure high-quality deliverables. Optimize application performance, scalability, reliability, and security. Troubleshoot production issues and implement sustainable solutions. Collaborate with product owners, business stakeholders, architects, and development teams to deliver technical solutions aligned with business objectives. Contribute to Agile development processes, including sprint planning, estimation, and retrospectives. Advocate and implement software engineering best practices, coding standards, and development frameworks. Mentor and guide junior developers, fostering technical growth and knowledge sharing. Stay current with emerging technologies and recommend improvements to existing systems and processes. Required Qualifications: Bachelor's degree in Computer Science, Information Technology, Engineering, or a related field. 7+ years of experience in software development with a strong focus on Java. Strong expertise in Core Java, object-oriented programming, multithreading, collections, concurrency, and JVM internals. Experience designing and developing enterprise-scale applications and distributed systems. Strong understanding of software design patterns, data structures, and algorithms. Experience building RESTful APIs and service-oriented architectures. Strong knowledge of relational databases such as Oracle, SQL Server, PostgreSQL, or MySQL. Experience with version control tools such as Git. Familiarity with Linux/Unix environments and scripting. Strong debugging, troubleshooting, and performance tuning skills. Excellent communication, analytical, and problem-solving abilities. Preferred Qualifications: Experience with Spring Boot, Spring Framework, and microservices architecture. Experience with messaging technologies such as Kafka, RabbitMQ, or JMS. Familiarity with containerization technologies such as Docker and Kubernetes. Exposure to cloud platforms including AWS, Azure, or Google Cloud Platform (GCP). Experience with CI/CD pipelines and DevOps practices. Knowledge of NoSQL databases such as MongoDB, Cassandra, or DynamoDB. Experience working in highly regulated or large-scale enterprise environments. Technical Skills: Core Competencies: Core Java (Java 8/11/17+) Multithreading & Concurrency Collections Framework JVM Performance Tuning Object-Oriented Design Data Structures & Algorithms Design Patterns Backend Technologies: Spring Boot REST APIs Microservices Hibernate/JPA Messaging Frameworks Databases: Oracle SQL Server PostgreSQL MySQL MongoDB (Preferred) Tools & Platforms: Git Jenkins Maven/Gradle Docker Kubernetes Linux/Unix AWS/Azure/GCP
Here's where they are and how to stand out in your next interview.
24.795Jobs
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That number includes positions in India (9,577), Poland (3,429), the United States (1,753), Singapore (787), and Brazil (779). If you're looking to move or work remotely, check which countries match your goals — then filter WorkMundi by location to see what's actually hiring near you.
Most developer ads you'll see are written in English: 18,397 of the 24,795. That doesn't tell you whether the job itself requires you to speak English or work in English daily, so read each posting carefully. Don't assume the language of the ad matches the language of the team.
The employers posting the most developer roles are Link Group (369 jobs), Upvanta (257), jobgether (226), and OfferZen (212). If you're applying to any of these, research their hiring patterns. They move fast and post often, which means they're either scaling hard or replacing people who didn't fit.
In your interview, expect this: 'Walk me through the last time you had to debug something that took you more than an hour. What was it, what did you try first, and what would you do differently?' Hiring managers ask this to see if you think systematically or just try random fixes. Have a real example ready with specifics.