Medior Software Engineer – Fully Remote

To work for one of the most progressive B2B integrators in Europe is not for everyone. Cloud integration is booming. And Onetrail’s development is right in the middle of it. For us, the most important matter is to help realize our customers’ automation goals with pragmatic, innovative solutions. We can only do this by giving you the space to be entrepreneurial.

Onetrail is a very pragmatic and flexible company; you understand that we expect the same flexibility from you. We understand better than anyone that processes need to work well together. So do the people within our team. Onetrail is part of Total Specific Solutions (TSS), Europe’s largest Vertical Market Software company with more than 125 independent Business Units.

As a Medior Software Engineer, you work as an independent contributor within our R&D team. You contribute to new product features, maintain existing services, and help improve the architecture of the Onetrail platform. You’re comfortable diving into Java backends, message flows, databases, and distributed systems — and you enjoy collaborating with colleagues from engineering, product, support, and delivery. 

You will: 

Solution development 

• Develop and expand product features based on refined specifications 
• Work hands-on with Java, Camel, Quarkus, jOOQ, Angular and more 
• Write clean, maintainable code and automated tests (JUnit, Mockito) 
• Contribute to backend, frontend, and integration components 
• Use GitLab, Maven, SonarQube, Docker, JetBrains IDEs and Cursor (AI driven development) in your daily work 

Solution design 

• Design features and technical improvements with support from our Senior/Lead Engineers 
• Apply design patterns and architectural thinking (distributed systems, cloud, security) 

Solution review 

• Review code and solutions 
• Ensure code quality, consistency, maintainability, and performance 

Infrastructure operations 

• Perform configuration updates, deployments and restarts with occasional assistance 
• Work with AWX, Linux, JMS, and database tools 

Operational support 

• Help diagnose and fix software issues in production systems 
• Work with Zabbix monitoring, internal tools, Kibana, logs, and message flows 
• Collaborate with Customer Care and Delivery on technical investigations 

Teamwork & collaboration 

• Participate actively in Scrum ceremonies 
• Use Trello and Jira to track progress 
• Work closely with other developers, product management, and cross-functional teams 

Self-development 

• Spend 10% of your working time on learning and improving your skills 

A place where you matter 

You’ll work in an experienced and friendly R&D team of 5 engineers where everyone contributes and decisions are made together. 

Remote working 

Work from home and join our 2-day company meetups twice a year in The Netherlands, plus regular virtual social events. 

Personal development 

Dedicated weekly time for training, learning, experimenting, and staying up to date. 

Impact 

Your work directly affects the daily business of some of the largest IT suppliers and retailers in Europe. 

Good employment conditions 

• Competitive gross salary € 3.750,- based on experience 
• 20 + 6 vacation days depending on your country 
• Pension plan 
• Laptop & professional tooling 
• A stable company with 25+ years of experience in data exchange 

The application process is as follows: 

• Introduction via Teams with (and assessment by) two direct development colleagues 
• Meeting with your manager and further discussion about the position 

In the event of a start: 

You get an experienced buddy to guide you through all the ins and outs of Onetrail