Medior Software Engineer

Vacancy – Medior Software Engineer – Fully Remote

To strengthen our development team, we are looking for a

Medior Software Engineer

who enjoys building high quality software, solving complex integration challenges, and contributing to a product used across the entire European IT channel.

At Onetrail we help suppliers and buyers connect, exchange product and order data, and automate digital processes across Europe. With thousands of retailers, distributors, and brands using our network every day, our software plays a crucial role in their supply chain.

What you will do

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:

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

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

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

What we ask

This role is a good fit if you have:

Skills & experience

3–6 years experience as a Software Engineer

Experience with one or more of the following is a big plus:

Camel, Quarkus, jOOQ

Elasticsearch or Solr

ActiveMQ, STCMS

Experience with GitLab CI/CD pipelines and Maven

Understanding of APIs, distributed systems, data flows, integration patterns

Comfortable working with Linux environments

Mindset

You enjoy solving technical puzzles

You write clean, readable, maintainable code

You are proactive, independent, and not afraid to ask questions

You collaborate well with others

You like working in a fastmoving product environment where every engineer has impact

What we offer

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.

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

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

Pension plan depending on your country

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

Ready to join us?

Are you excited to help build and innovate the Onetrail platform?

Send your CV (and optionally GitHub or portfolio) to

[email protected] .

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