Senior Integration Engineer - AppDev

Mendix; Rotterdam; On-site; EUR 69,100 - 110,600; Full time

Benefits offered by this job

Health and wellness benefits

Flexible working hours

Incentive compensation

Job summary

Mendix is seeking a Senior Integration Engineer in Rotterdam to define systems and architecture for their platform, enhancing collaboration and application development. This role requires 7+ years of experience in platform development and expertise in C# and TypeScript.

As part of a flexible, hybrid work environment, the ideal candidate will drive innovation and contribute to creating excellent end-user experiences.

The position offers a competitive salary between €69,100 and €110,600, including incentives.

Qualifications

• 7+ years of proven experience in platform development.
• Proficiency in C# and TypeScript.
• Expertise in integration technologies and building scalable systems.

Responsibilities

• Define and evolve the systems and architecture for the platform.
• Drive technical innovation to improve developer productivity.
• Mentor teams to deliver high-impact technical outcomes.

Skills

C#

TypeScript

React

React Native

Integration technologies

Large datasets

Data lakes

SPARQL

GraphQL

Job description

About Mendix

Mendix is on a mission to fundamentally reinvent the way applications are built by abstracting the process and enabling everyone who has a stake in an enterprise's digital future—business people and analysts, web developers, software engineers, even CEOs—to significantly participate, thereby crafting better applications faster. Our goal is simply to build the future of software development.

Position Overview

As a Senior Integration Engineer – AppDev, you will help define the systems, tools, and architecture that form the foundation of our platform, building excellent end-user experiences from design time to runtime. Your work will have a direct impact on improving efficiency and the ability to innovate across the development community. You'll help us build a future where applications are built with collaboration across organizations.

If challenge motivates you and you are courageous in taking up topics that others won't touch, you will feel in your element in this role. We expect that you bring the technical know-how, take the initiative where needed, and empower others to join your journey.

Key Responsibilities

• Define and evolve the systems, tools, and architecture that power our platform
• Drive technical innovation and lead efforts to improve developer productivity and experience
• Collaborate across teams to design solutions that enable seamless application development and deployment
• Demonstrate technical expertise and leadership with a pragmatic, can-do attitude
• Architect integration solutions that support large datasets and data lakes with scalability in mind
• Mentor and empower cross-functional teams to deliver high-impact technical outcomes

Qualifications

• 7+ years of proven experience in platform development, frameworks, or development tooling
• Proficiency in C# and TypeScript, with hands‑on experience in React and React Native
• Demonstrated expertise in integration technologies, specifically large datasets, data lakes, SPARQL, and GraphQL
• Proven technical track record with demonstrated expertise in building scalable systems
• Strong leadership capabilities and ability to empower cross-functional teams
• Experience handling sophisticated problems and inspiring organizational change

Preferred

• Passion for helping developers reach their next level of efficiency
• Motivation by the AI-future and emerging technologies
• Ability to maintain a balanced rhythm by delivering results while continuously investing in built-in quality systems
• Goal-oriented attitude with a getting things done approach

Why Us

At Siemens Software, flexibility is how we work—hybrid by default, built on trust and autonomy. Together, 30,000 people across more than 200 countries build technology that shapes the real world. You'll grow through real projects, strong technical peers, and global mobility, backed by the scale and benefits of an industrial software leader. We’re committed to equality and inclusion, and we hire based on merit, skills, and impact. Bring your curiosity and creativity and help us shape tomorrow!

Our Benefits & Rewards

The salary range for this position is €69,100 to €110,600 and this role is eligible to earn incentive compensation. The actual compensation offered is based on the successful candidate’s job‑related skills, experience, and relevant education/training. Siemens offers health and wellness benefits to employees; you can access the benefits available in your country via the link.

Our Commitment to Equity and Inclusion

We value your unique identity and perspective. We are fully committed to providing equitable opportunities and building a workplace that reflects the diversity of society, while ensuring that we attract the best talent based on qualifications, skills, and experiences. We welcome you to bring your authentic self and transform the everyday with us.

Siemens Software. Transform the Everyday