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Keystone Solutions

Application Interface Specialist

On site

Brussels, Belgium

Full Time

23-01-2026

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Skills

Java JavaScript SQL SAP Attention to detail Programming Talend

Job Specifications

Mission Overview

About the job Application Interface Specialist

Keystone Solutions is recruiting several Interface Specialists to join our consultancy team for a mission at our client in the healthcare sector. As a Keystone Solutions consultant, you will design and develop high-quality integration flows between hospital information systems, working closely with the clients stakeholders. Collaboration, innovation, and attention to detail will be key in ensuring seamless interoperability that supports patient care and operational efficiency. You will perform all responsibilities below as a Keystone Solutions consultant, embedded with the clients teams.

Key Responsibilities

Design, develop, and maintain interfaces using Mirth Connect, ensuring compliance with healthcare standards (HL7 v2/v3, FHIR).
Collaborate with cross-functional teams (IT, medical staff, administration) to analyze requirements and implement integration solutions.
Ensure data quality, security, and traceability across systems (EHR, laboratory, imaging, billing, etc.).
Troubleshoot and resolve interface issues to guarantee system interoperability and performance.
Stay updated with the latest technologies and best practices in healthcare integration and interoperability.

Required Skills

Proven experience with Mirth Connect (alternatively experienced in a similar middleware for interface development and management will be considered).
JavaScript expertise is required.
Ability to understand business requirements.
Ability to write formal functional and technical specifications.
Ability to write clean, maintainable, and efficient integration code.
Java programming skills for custom scripting and connector development is an asset.
Experience with database design and SQL.
Experience with ETL tools, such as Talend (asset).
Knowledge of HL7 standards and healthcare interoperability protocols (asset).
Experience in integration using SAP ERP APIs (asset).
Experience with Epic systems integration (asset).

Preferred Qualifications

Bachelor's degree in Computer Science, Software Engineering, or a related field.

Working Schedule

Full-time. Minimum of 3 days per week on site at the client.

Role Level

Medior Middleware Developer

Technical Skills And Proficiencies

Business Requirements
ETL
Java
JavaScript
Middleware
RESTful API
SOAP API
SQL

Languages

English
French
Dutch: Nice to have.

Consultancy Nature Of Work With Keystone Solutions

Operate as a Keystone Solutions consultant embedded within the clients environment, primarily on site, collaborating daily with clinical, IT, and operational stakeholders to deliver mission-critical integrations.
Represent Keystone Solutions standards of excellence, quality, and reliability while executing the clients objectives.

Dynamic Projects

Engage with diverse challenges across hospital information systems, including EHR, laboratory, imaging, billing, and ERP integrations, leveraging Mirth Connect and healthcare standards (HL7 v2/v3, FHIR).
Opportunity to transition between client initiatives over time, broadening your impact and exposure to multiple healthcare platforms and workflows.

Turbo-Charged Learning And Development

Benefit from Keystone Solutions mentorship, knowledge-sharing, and targeted upskilling on integration patterns, interoperability standards, security, and performance engineering.
Access professional development support aligned with your mission needs (e.g., advanced HL7/FHIR practices, Epic ecosystem know-how, SAP ERP integration patterns, and ETL tooling such as Talend).

Ambition Skyrocketing Within a Consultancy Framework

Accelerate your career through varied client engagements, from greenfield interface development to optimization and troubleshooting of high-throughput clinical data flows.
Build a recognized track record as a trusted consultant who can translate business requirements into robust, production-grade integration solutions.

Keystone Solutions Values In Action

As a K-Stone, you embody integrity, client-centricity, craftsmanship, and collaboration in every engagement.
You champion quality, documentation, and traceability, ensuring safe, secure, and resilient data exchange that directly supports patient care.

Role-Specific Impact In Healthcare

Apply your middleware and JavaScript expertise to deliver maintainable, standards-compliant interfaces tailored to diverse hospital systems.
Leverage your ability to collect business requirements and produce formal functional and technical specifications to ensure solutions are aligned with clinical and operational needs.

If you are ready to tackle technical and strategic challenges in a dynamic consultancy environment, apply today at Keystone Solutions Career Portal.

About the Company

At Keystone Solutions, we specialize in bridging technology and talent to deliver a seamless IT experience. With a focus on efficiency and innovation, we streamline your IT services, ensuring that you can focus on what you do best while we handle the complexities of your IT ecosystem. From strategic planning through to execution, we are your partners in creating a harmonious technological environment that propels your business forward. Our Services: - Hyperautomation: Embrace efficiency with Keystone Solutions' hyperautom... Know more