Java Developer

at Trimetis AG
  • Remote - Worldwide

Remote

Software Development

Mid-level

Job description

Description

The project

We are looking for an experienced Java Developer to join a greenfield project aimed at building a next-generation, AI-first fleet management platform with a cloud-native architecture. You will work alongside a skilled cross-functional team to develop robust backend services and APIs that serve as the foundation for scalable, intelligent fleet operations systems.

You will play a key role in building a modern, microservices-based architecture and ensuring that services are secure, maintainable, and integrated seamlessly with advanced AI features including OCR document processing, NLP search, and digital verification workflows.

Industry: Fleet management

Team: Tech Lead, Backend developers, QA (Poland and Egypt)

The number of open vacancies: 1

Type of contract: B2B/Labour Contract

The preferred scale of work: full-time

Start date: June 2025, long-term cooperation Type of work: 100% remote from Poland (Lublin preferred)

Location: Poland

Main technologies used in the project:

  • Frontend: Vaadin (mobile-first, responsive)

  • Backend: PostgreSQL (with JSON indexing)

  • Server: Tomcat (Java stack)

  • AI Services: TBC

Your tasks:

  • Design, build, and maintain Java-based microservices in a scalable, event-driven architecture.

  • Develop secure and RESTful APIs for integration with AI modules and client-facing features.

  • Collaborate with AI and Frontend developers to support document processing, NLP functionality, and driver verification workflows.

  • Optimize database access and queries using PostgreSQL and advanced SQL techniques.

  • Implement and maintain unit and integration tests (JUnit, Mockito) to ensure service quality.

  • Support deployment pipelines and monitor application performance using CI/CD and observability tools.

  • Contribute to architecture discussions and technical decisions with a focus on maintainability and scalability.

Requirements

What we expect from you:

  • 6+ years of experience with Java (Java 17 or newer).

  • Strong knowledge of Spring Boot, Spring MVC, and Hibernate/JPA.

  • Experience with CI/CD tools (Jenkins), version control (Git), and project. management tools (JIRA, Confluence).

  • Experience working with REST APIs and event-driven architectures.

  • Solid grasp of OOP, Clean Code, and software development best practices.

  • Proficiency in SQL and working with relational databases like PostgreSQL.

  • Comfortable with unit and integration testing(JUnit, Mockito).

  • Experience designing microservices and integrating distributed systems.

  • Analytical mindset with curiosity to understand complex business logic.

Nice to have:

  • Experience in DevOps and AWS infrastructure.

What we can offer:

  • flexible working hours

  • medical insurance

  • international clients

  • 100% remote work

  • annual bonuses

  • life insurance

  • non-corporate work atmosphere

  • integration events

  • additional days off

  • training and development budget

We look forward to receiving your application!

Recruiter responsible for the offer

Karolina Witkowska [email protected]

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