Medior Software Engineer

Onetrail; Netherlands; Remote; EUR 38,083 - 45,616; Full time

Benefits offered by this job

Competitive salary

Pension plan

Laptop & professional tooling

Job summary

A leading IT solutions provider is looking for a Medior Software Engineer to work fully remote, focusing on building high-quality software and solving complex integration challenges. The role involves collaborating within an R&D team, contributing to product features, maintaining services, and enhancing the architecture. Ideal candidates have 3-6 years of experience, strong skills in Java, and an interest in distributed systems. This position offers competitive remuneration and a supportive work environment including a focus on self-development.

Qualifications

• 3-6 years experience as a Software Engineer.
• Experience with Java and distributed systems.
• Familiarity with GitLab CI/CD pipelines.

Responsibilities

• Develop and expand product features based on specifications.
• Contribute to backend, frontend, and integration components.
• Help diagnose and fix software issues in production systems.

Skills

Java

Distributed systems

APIs

Integration patterns

Linux environments

Tools

GitLab

Docker

JUnit

Mockito

Job description

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 [e-mail].