Java Developer

Andersen is hiring a Lead Java Developer to work on-site in Saudi Arabia for a project delivering scalable digital solutions for public and private sector organizations.

The customer is an established organization focused on supporting economic and organizational development through technology-enabled solutions and professional services. It develops digital platforms, automation tools, and business programs that help organizations improve operational efficiency, expand capabilities, and respond to evolving market needs. By combining technology, industry expertise, and development initiatives, the organization supports sustainable growth, digital transformation, and the advancement of professional capabilities across multiple sectors.

This project is focused on delivering digital and technology solutions for government, semi-government, and private sector organizations. It supports diverse business needs through the development and implementation of reliable, scalable, and efficient solutions.

• Providing technical leadership and architectural guidance across multiple project streams.
• Supporting teams in designing, reviewing, and improving backend and frontend solutions.
• Participating in key technical decisions and helping ensure scalability, maintainability, and alignment with engineering standards.
• Reviewing existing implementations, identify technical risks, and recommend improvements or alternative approaches.
• Working closely with developers, stakeholders, and other technical leads to clarify requirements and unblock delivery.
• Mentoring engineers, conducting design and code reviews, and supporting teams with complex technical issues.
• Contributing to technical documentation, architecture decisions, and continuous improvement of development practices.

• Professional software development experience for 6+ years.
• Strong hands-on experience with Java and Spring / Spring Boot.
• Proven experience as a Technical Lead, Lead Developer, or similar technical leadership role.
• Strong understanding of software architecture and experience making technical and architectural decisions.
• Hands-on experience with microservices and distributed systems.
• Experience with cloud-based systems, containerized applications, and CI/CD.
• Good understanding of SOLID, clean code, and automated testing.
• Ability to work across multiple teams or project streams and provide technical guidance.
• Strong communication skills and ability to explain technical decisions to both technical and non-technical stakeholders.
• Level of English – Upper-Intermediate and above.

• Experience with Oracle Cloud Infrastructure (OCI).
• Experience with Spring Modulith in production environments.
• Experience with reactive programming / non-blocking I/O.
• Experience with RabbitMQ or similar messaging technologies.
• Experience with Elasticsearch.
• Experience with IoT or embedded systems.
• Experience with video processing or video analytics solutions.
• Experience with large-scale or high-load systems.
• Experience with system migrations and modernization of legacy applications.
• Linux-oriented engineering background.
• Previous experience working onsite in Saudi Arabia, GCC, or the Middle East.

• Experience in teamwork with leaders in FinTech, Healthcare, Retail, Telecom, and others. Andersen cooperates with such businesses as Samsung, Siemens, Johnson & Johnson, BNP Paribas, Ryanair, Mercedes, TUI, Verivox, Allianz, T-Systems, etc..
• The opportunity to change the project and/or develop expertise in an interesting business domain.
• Guarantee of professional, financial, and career growth! The company has introduced systems of mentoring and adaptation for each new employee.
• The opportunity to earn up to an additional 1,000 EUR per month, depending on the level of expertise, which will be included in the annual bonus, by participating in the company's activities.
• Access to the corporate training portal, where the entire knowledge base of the company is collected and which is constantly updated.
• Bright corporate life (parties / pizza days / PlayStation / fruits / coffee / snacks / movies).
• Certification compensation (AWS, PMP, etc).
• Referral program.
• Private health insurance and sports compensation, depending on the type of employment.

Join us!

Andersen is hiring a Java Developer (Kazakhstan) to build scalable software solutions and support international digital projects across multiple industries.

Andersen is a pre-IPO software development company providing a full cycle of services. For over 19 years, we have been helping enterprises and middle-sized firms worldwide transform their businesses by creating effective digital solutions using innovative technologies.

Today, we are working with organizations from various parts of the world, including North America, Western Europe, Israel, Australia, and the UAE. Our expertise covers FinTech, Healthcare, Retail, Telecom, Media & Entertainment, Logistics, Travel & Hospitality, eCommerce, and other industries.

The project is focused on developing a next-generation business banking mobile application based on microservices architecture. It includes building new features, integrating modern technologies, and preparing the migration of corporate clients from the legacy platform to the new solution.

• Developing and maintaining backend services using Java 11+ and Spring Boot / Spring MVC, following SOLID principles and Clean Code practices.
• Designing and implementing RESTful APIs, ensuring seamless integration with internal and external systems, with a strong understanding of HTTP method semantics, including idempotency, and CORS policy configuration.
• Working with relational databases (PostgreSQL / MySQL): writing complex SQL queries, profiling queries using EXPLAIN, analyzing execution costs and execution plans, optimizing indexes, and ensuring ACID compliance.
• Implementing the data access layer using Hibernate / JPA and optimizing query performance.
• Developing reliable caching mechanisms, selecting appropriate caching strategies (in-memory vs. distributed caching), and working extensively with Redis, including TTL management and understanding its underlying data storage mechanisms.
• Integrating and configuring asynchronous messaging with Kafka, including managing topics, partitions, consumer groups, and offsets, as well as ensuring fault tolerance in case of consumer failures.
• Ensuring application security using Spring Security, JWT, and OAuth 2.0.
• Supporting CI/CD processes, working with Git and GitFlow, containerizing applications using Docker, working in Linux environments, and participating in deployments to cloud platforms (AWS / GCP / Azure as required).

• Experience as a Java Developer for 2+ years.
• Understanding operating system fundamentals and their interaction with the JVM.
• Having strong knowledge of Java and object-oriented programming (OOP) principles.
• Understanding network communication, including the OSI model and its real-world implementations, stateless and stateful approaches to protocol design, and the differences between HTTP and TCP.
• Having strong knowledge of and hands-on experience with the Spring Framework.
• Having solid knowledge of SQL databases, including ACID properties, transaction isolation levels, and related concepts.
• Being proficient with at least one version control system, preferably Git.
• Having hands-on experience with Docker.
• Being able and willing to write high-quality unit tests.
• Having experience with static code analysis tools such as SonarQube.
• Being willing and prepared to mentor colleagues and conduct code reviews.
• English level – from Intermediate and above.

• Having experience with NoSQL databases.
• Having hands-on experience independently designing and setting up a microservices architecture for a new project.
• Having experience with Testcontainers.

• Experience in teamwork with leaders in FinTech, Healthcare, Retail, Telecom, and others. Andersen cooperates with such businesses as Samsung, Siemens, Johnson & Johnson, BNP Paribas, Ryanair, Mercedes, TUI, Verivox, Allianz, T-Systems, etc..
• The opportunity to change the project and/or develop expertise in an interesting business domain.
• Job conditions – you can work both fully remotely and from the office or can choose a hybrid variant.
• Guarantee of professional, financial, and career growth! The company has introduced systems of mentoring and adaptation for each new employee.
• The opportunity to earn up to an additional 1,000 EUR per month, depending on the level of expertise, which will be included in the annual bonus, by participating in the company's activities.
• Access to the corporate training portal, where the entire knowledge base of the company is collected and which is constantly updated.
• Bright corporate life (parties / pizza days / PlayStation / fruits / coffee / snacks / movies).
• Certification compensation (AWS, PMP, etc).
• Referral program.
• Private health insurance and sports compensation, depending on the type of employment.

Join us!

Andersen is hiring a Software Architect (Java) in Germany for a project developing a scalable energy platform supporting digital transformation and regulatory-driven innovation.

Our customer is a large infrastructure organization focused on operating and enhancing complex, business-critical systems. The company invests in digital technologies, automation, and data-driven solutions to improve operational efficiency, reliability, and decision-making across large-scale processes. With a strong focus on innovation and continuous improvement, it develops scalable technology capabilities that support long-term organizational growth and evolving operational needs.

The project is focused on developing and evolving a balancing services procurement platform that supports tendering, provider data management, and operational data processing. It aims to ensure efficient procurement of balancing services while adapting to regulatory requirements, German TSO initiatives, and international energy market cooperation.

• Designing and validating software architecture for a critical on-premises platform.
• Defining architecture standards and ensuring compliance.
• Validating software components and integrations.
• Producing and maintaining architectural documentation.
• Ensuring compliance with ISMS / BSI KRITIS requirements.
• Supporting integration across platform products.
• Coaching and training development team members.

• Experience in Java development for 7+ years (Java 8–21).
• Strong expertise in the Spring ecosystem (Boot, Data, Cloud, Security).
• Hands-on experience with Hibernate and Oracle SQL.
• Strong knowledge of OAuth2 and OpenID Connect (OIDC) security implementation.
• Experience with Camunda and Hazelcast IMDG.
• Experience with integration technologies, including REST, AMQP, gRPC, OpenAPI (OAS), and SFTP.
• Experience with React, JavaScript, and Swagger/OpenAPI.
• Experience with CI/CD and DevOps tools (Git, Jira, Confluence, Bamboo, Bitbucket).
• Experience in software architecture design.
• Level of English – from Upper-Intermediate+ and above.
• Level of German – from Upper-Intermediate and above.

• Experience with SQL Server and multi-database environments.
• Knowledge of Apache Tomcat, JSP.
• Familiarity with Octopus Deploy.
• Experience with Ant Design and Highcharts.
• Experience with Camunda Cockpit and Hazelcast Management tools.
• Experience working in Scrum environments.
• Experience with critical infrastructure / regulated industries (e.g., energy sector).

• Experience in teamwork with leaders in FinTech, Healthcare, Retail, Telecom, and others. Andersen cooperates with such businesses as Samsung, Siemens, Johnson & Johnson, BNP Paribas, Ryanair, Mercedes, TUI, Verivox, Allianz, T-Systems, etc..
• The opportunity to change the project and/or develop expertise in an interesting business domain.
• Job conditions – you can work both fully remotely and from the office or can choose a hybrid variant.
• Guarantee of professional, financial, and career growth! The company has introduced systems of mentoring and adaptation for each new employee.
• The opportunity to earn up to an additional 1,000 USD per month, depending on the level of expertise, which will be included in the annual bonus, by participating in the company's activities.
• Access to the corporate training portal, where the entire knowledge base of the company is collected and which is constantly updated.
• Bright corporate life (parties / pizza days / PlayStation / fruits / coffee / snacks / movies).
• Certification compensation (AWS, PMP, etc).
• Referral program.
• Private health insurance and compensation for sports activities.

Join us!