For a payments customer, we are searching for a freelance API Integration Engineer to join the technical team in Brussel. You will support Electronic Cash Register (ECR) integrations. As an API Integration Engineer, your primary responsibility is to design, maintain, and optimize integrations with external clients, with a specific focus on ECR API integration at the protocol level (VIC, CTEP).

This role requires a blend of technical expertise, strong communication skills, and problem-solving ability. You will serve as a technical liaison between engineering teams and customers/partners, helping to troubleshoot and resolve integration issues, and to prevent them from arising in the future.

Responsibilities

- Provide technical support and hands-on integration assistance for ECR API Integration project
- Troubleshoot and resolve issues related to API connectivity and system interoperability
- Collaborate with development and QA teams to ensure robust integration solutions
- Monitor system performance and diagnose potential issues before they escalate




- Communicate effectively in English with clients and internal teams
- Manage project-related communications, deliverables, and status updates
- Use Jira for issue tracking and project management

Profile

- Bachalor degree or equivalent
- 4-5 years of experience, ideally in a similar position
- Good communication skills – fluent in Dutch or French and English
- Open-minded and flexible
- Strong technical background (HW/SW environment)
- Experience with API integrations
- Familiarity with Jira and agile project practices
- Ready to work in an international context
- Team player with a good level of autonomy

Additional Details

SENIORITY: 5+ Years

START DATE: September

DURATION: 6 Months

EXTENSION: Yes

CONTRACT: Freelance

LOCATION: Brussels

ONSITE POLICY: Versátil

HOURS PER WEEK: 40

LANGUAGES: Fluent English and Dutch/French

INTERVIEW PROCESS: 1-2 stages

If you are interested, please forward your updated resume to [email protected] to be considered.

📌 Freelance api integration engineer - electronic cash register (payments) (España)
🏢 Vivid Resourcing
📍 España