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Ascendix Tech Logo Ascendix Tech · IT - Software Development

Java Developer

B2B · Job Posted December 06, 2025
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Job Description

Join our team working on a large-scale mobility platform designed to improve and modernize intercity and airport transportation services across Europe! The project focuses on creating a seamless digital ecosystem for travel management, encompassing ticket reservations, real-time scheduling, customer communication, and operational support for transportation services. The platform is composed of several microservices developed in Java and Spring Boot, with integrations to third-party systems (payment providers, route optimization services, etc.). The system architecture supports both B2B and B2C operations and is designed for high availability and scalability.

Job Responsibility

  • Design, develop, test, and maintain robust and scalable backend solutions using Java
  • Participate in the full software development lifecycle (SDLC), including analysis, planning, implementation, testing, deployment, and support
  • Collaborate closely with front-end developers, QA engineers, product owners, and other team members to deliver high-quality software solutions
  • Write clean, maintainable, and well-documented code following best practices and coding standards
  • Participate in code reviews to ensure high quality and knowledge sharing within the team
  • Debug and resolve technical issues in a timely and effective manner
  • Take ownership of assigned tasks and deliver features on time, with minimal supervision
  • Stay updated on emerging technologies and trends in backend development and proactively apply them where beneficial

Requirements

  • 3+ years of proficiency in Java technologies
  • Understanding of APIs and microservices patterns
  • Extensive experience with Java 17, Spring Boot
  • Proficiency in database theory, SQL, and best practices for No-SQL databases
  • Familiarity with Kubernetes and Spring Boot integration testing
  • Adherence to best engineering practices like SOLID, KISS, DRY, and more
  • Writing efficient code that thrives in concurrent and high-load environments
  • A strong grasp of estimation techniques
  • Exceptional problem-solving skills
  • Upper-intermediate English proficiency

Nice to have

  • Experience in Java 21
  • Experience in DevOps with Terraform and Helm Charts
  • Azure Cloud expertise
  • Knowledge of Redis (Redisson client for Java)
  • Good theoretical and practical MongoDB knowledge
  • Experience in designing and optimizing database schemas, writing queries, and aggregating
  • Understanding the specifics of working with NoSQL databases
  • Experience with Kafka

What we offer

  • 20 paid vacation
  • 5 paid sickness
  • B2B and remote cooperation
  • Career development and professional growth
  • Technical performance reviews and 360 Evaluation
  • Collaboration with a personal Direct Manager, Technical leads, and mentors
  • Udemy and Pluralsight subscription
  • Internal knowledge-sharing opportunities
  • Online and offline events & team-buildings
  • Friendly and supportive atmosphere
  • Open management
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