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Middle / Senior Java Developer_2025

Middle / Senior Java Developer_2025

AscendixKraków, Poland
30+ days ago
Job type
  • Remote
  • Quick Apply
Job description

Ascendix Technologies is a software and services technology company founded in 1996 and headquartered in the United States, in Dallas, Texas.

We are a community of professionals committed to delivering second-nature solutions globally to digitize, optimize, and leverage processes. We specialize in building solutions for globally-focused businesses that look to leverage cloud computing, and commercial and open-source technologies for big data, search, applications, and cross-platform mobility. We have deep experience in Salesforce.com CRM platforms, and offer products, services, and productivity modules.

Join our team working on a large-scale mobility platform designed to improve and modernize intercity and airport transportation services across Europe.

The project is cantered around building a seamless digital ecosystem for travel management, including ticket reservations, real-time scheduling, customer communication, and operational support for transport 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.

Key features under development and enhancement :

  • Trip and booking management
  • Dynamic pricing and discounts
  • Driver and vehicle coordination
  • Real-time vehicle tracking and customer notifications
  • Integration with mobile apps and web interfaces

Project team : Project Manager, Business Analyst, 2 Backend Developers, Web Developer, Mobile Developer, 3 QA Engineers, DevOps

Requirements :

  • Proficiency in

    • Java

    technologies

  • A deep understanding of APIs and microservices patterns
  • Extensive experience with

    • Java

    17, Spring Boot and

    Mongo

  • Good theoretical and practical

    • Mongo

    DB knowledge. Experience in designing and optimizing database schemas, writing queries, and aggregates. Understanding the specifics of working with NoSQL databases.

  • 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

    • Would be a plus :

  • Experience in

    • Java

  • Experience in DevOps with Terraform and Helm Charts
  • Azure Cloud expertise
  • Knowledge of Redis (Redisson client for

    • Java

    Responsibilities :

  • 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.

    • Ascendix offers you :

    Healthcare :

  • 20 paid vacation
  • 5 paid sickness

    • Career and professional growth :

  • Long-term employment
  • Remote cooperation
  • Career development and professional growth
  • Technical performance reviews and 360 Evaluation
  • Collaboration with a personal Resource Manager, Technical leads, and mentors

    • Learning and Development :

  • Udemy and Pluralsight subscription
  • Internal knowledge-sharing opportunities

    • Corporate spirit :

  • Online and offline events & team-buildings
  • Friendly and supportive atmosphere
  • Open management
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    Java • Kraków, Poland