Senior Back End Software Engineer (Java, PHP)

Exadel is an AI-first global tech company with 25+ years of engineering leadership, 2,000+ team members, and 500+ active projects powering Fortune 500 clients including HBO, Microsoft, Google, and Starbucks. The client is an international transportation technology company focused on building scalable digital solutions for modern rail operations, developing internal platforms and automation tools to improve efficiency and streamline complex processes.

• Solid professional backend development experience
• Strong expertise in Java and JVM-based frameworks such as Micronaut or Spring Boot
• Professional experience with PHP and willingness to work in a mixed Java/PHP environment
• Experience with Kubernetes, AWS, MySQL, and distributed messaging systems such as Kafka
• Strong understanding of distributed systems, scalability, reliability, and software architecture
• Experience building scalable systems handling high volumes of requests and data
• Experience with unit and integration testing
• Strong problem-solving, communication, and collaboration skills
• Experience working in Agile, cross-functional teams

Nice to have:

• Experience with OpenSearch / Elasticsearch
• Knowledge of Redis and Terraform
• Experience with Symfony
• Familiarity with GitLab CI/CD
• Experience with observability and monitoring
• Knowledge of graph theory or search optimization

• Design, develop, and maintain scalable, reliable, and high-performance backend services
• Build and evolve the Search platform handling millions of search requests per day across 40+ countries
• Design components and integrations focusing on scalability, maintainability, reliability, and performance
• Work on complex distributed systems problems including graph-based search, caching, memory optimization, and high-throughput processing
• Contribute to the migration of Search services from PHP to Java
• Drive technical improvements and contribute to architecture and technology decisions
• Ensure backend services are observable and design monitoring strategies
• Identify, prioritize, and reduce technical debt with the team
• Support and improve CI/CD processes and ensure reliable releases
• Write SOLID, maintainable, flexible, testable, and scalable code
• Collaborate closely with Product, Frontend, Data, UX, and Engineering teams
• Participate in code reviews, technical discussions, mentoring, and knowledge sharing
• Lead adoption of better engineering practices and improve team workflows
• Take ownership of backend solutions from concept through production

Exadel is an Equal Opportunity Employer committed to inclusion across minority, gender identity, sexual orientation, disability, age, and more. Reasonable accommodations are available to enable individuals with disabilities to perform essential functions. The job description is not exhaustive, and duties may evolve based on business needs. Compensation details are shared at the early recruitment stages. The offer is not binding until a signed contract is in place.