About the Team: 

Enterprise Systems is the backbone of GSK’s internal operations in Digital & Tech, enabling GSK Global Functions teams such as Finance, Procurement, HR, Legal, Compliance, (Workplace & Real Estate Facilities) WREF, (Communications & Government Affairs) CGA and Corporate Secretariat to run seamlessly. This team designs and delivers cutting-edge digital platforms that power critical processes, ensuring efficiency, compliance, and scalability across the enterprise. Enterprise Systems Management & Business Operations delivers digital solutions that support Enterprise Systems running as a high-performing organisation. This team drives financial discipline, operational rigour and strategic alignment across the ES (Enterprise Systems) portfolio that safeguard GSK’s integrity and reputation globally. By joining this team, you’ll help shape systems that support thousands of employees worldwide, driving innovation and reliability in the tools that keep GSK moving forward.

Job Purpose:

The Principal Developer Mendix designs, develops, tests, and supports (Manufacturing Execution System) MES solutions using Mendix. The role translates business and manufacturing requirements into reliable, secure, and compliant system solutions, including configurations, databases, integrations, and custom applications. The role supports troubleshooting of complex technical issues, uses approved AI-assisted development tools to improve efficiency, and ensures all solutions meet quality, security, data integrity, and (Good Practice) GxP requirements. The Principal Developer Mendix also promotes standardization, reusable solutions, and best practices across MES platforms and teams. 

Key Responsibilities:

• Design, develop, and maintain applications using the Mendix low-code platform. 
• Create and optimize microflows, nanoflows, and business logic to support business processes. 
• Design, develop, and maintain domain models, entities, associations, data management structures, and responsive, user-friendly pages, layouts, and widgets for web and mobile applications.
• Integrate Mendix applications with (Representational State Transfer Application Programming Interfaces) REST APIs, (Simple Object Access Protocol) SOAP services, databases, and enterprise systems. 
• Configure and manage application security, user roles, authentication, and authorization while performing testing, debugging, troubleshooting, and performance optimization to ensure secure, reliable, and efficient application performance.
• Utilize Mendix Studio Pro, version control, and deployment pipelines to support the application lifecycle. 
• Support application deployment, monitoring, maintenance, and upgrades across environments. 
• Prepare technical documentation and mentor junior Mendix developers on best practices. 
• Collaborate with business stakeholders, business users, project teams, and vendors to translate requirements into scalable Mendix solutions and successfully deliver MES projects.
• Use approved development and AI-assisted tools to improve productivity and solution quality.  
• Ensure compliance with GxP, data integrity, cybersecurity, and company standards.  
• Create and maintain technical documentation, design specifications, and support materials while contributing to standardization, best practices, and continuous improvement initiatives to enhance solution quality, consistency, and operational effectiveness.
• Provide technical guidance and knowledge sharing to team members while participating in system upgrades, enhancements, and lifecycle management activities to support continuous platform stability, improvement, and long-term sustainability.
• Develop expertise across MES platforms, software technologies, and AI tools to effectively support and deliver solutions across multiple MES systems 
• Use AI-assisted development as the default way of coding, testing, reviewing and documenting, and validate all AI-generated output for quality, security, data integrity and GxP before release. 
• Implement version control and automated build, test, and deployment practices where supported, achieving improved release quality and deployment efficiency. Monitor production performance, proactively identify and eliminate root causes of issues, reducing recurring incidents and improving system reliability and availability. 
  

 Basic Qualifications:

• Bachelor’s or master’s degree in engineering, Computer Science, Information Technology, Automation, Data, Life Sciences or a relevant technical discipline, or equivalent practical experience.
• Relevant technical, AI, cloud, integration, automation, data, validation, cyber security or engineering certifications.
• Minimum 5+ years of hands-on experience with the MES platform Mendix and the ability to work across multiple MES systems.
• Experience in leading MES solution delivery across products, platforms and sites.
• Experience in technical review, troubleshooting and root-cause analysis.
• Experience in working with cross-functional teams and vendors to deliver scalable, compliant Mendix solutions.
• Experience in managing technical risk, ensuring data integrity and compliance, and supporting audits and inspections.
• Experience in mentoring engineers and supporting best practices and standardisation.
• Experience in Mendix application development, including domain modelling, microflows, nanoflows, security configuration and application lifecycle management.
• Experience in system integrations, API development, database technologies and deployment of scalable enterprise applications within manufacturing or MES environments.
• Experience in using AI-assisted development tools and applying validation, software quality, security, compliance and maintainability standards.
  

Preferred Qualifications:

• Experience in problem-solving, technical leadership and communication.
• Experience in developing solution designs, managing technical documentation and supporting compliant system delivery.
• Experience in integrations, data management, security, quality and change control processes.
• Experience in collaborating across teams, mentoring engineers and supporting standardisation, automation and continuous improvement.
  

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Why GSK?

Uniting science, technology and talent to get ahead of disease together.

GSK is a global biopharma company with a purpose to unite science, technology and talent to get ahead of disease together. We aim to positively impact the health of 2.5 billion people by the end of the decade, as a successful, growing company where people can thrive. We get ahead of disease by preventing and treating it with innovation in specialty medicines and vaccines. We focus on four therapeutic areas: respiratory, immunology and inflammation; oncology; HIV; and infectious diseases – to impact health at scale.

People and patients around the world count on the medicines and vaccines we make, so we’re committed to creating an environment where our people can thrive and focus on what matters most. Our culture of being ambitious for patients, accountable for impact and doing the right thing is the foundation for how, together, we deliver for patients, shareholders and our people.

Inclusion at GSK:

As an employer committed to Inclusion, we encourage you to reach out if you need any adjustments during the recruitment process.

Please contact our Recruitment Team at [email protected] to discuss your needs.

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