Principal Architect, Middleware & Application Frameworks

Octagon Professionals International; Amsterdam; Hybrid; EUR 90,000 - 150,000; Full time

Benefits offered by this job

Flexible working model

International R&D environment

Job summary

Octagon Professionals International seeks an experienced Platform Architect to own the platform architectural direction across devices and ecosystems. You will shape middleware and framework strategies, balancing performance, compatibility and scalability with long-term planning.

You will guide cross-functional teams from architecture through implementation, ensuring design decisions meet commercial product needs and evolving platform standards.

Qualifications

• Extensive experience in system-level software development.
• Experience with Android or iOS application frameworks.
• Proven ability to architect cross-platform middleware and frameworks.
• Strong understanding of OS design principles.
• Ability to communicate architectural decisions clearly across teams.

Responsibilities

• Set platform architectural direction and translate middleware needs into a technical roadmap for HarmonyOS or equivalent platform.
• Design middleware and framework architectures across devices and ecosystems.
• Address performance, memory, startup, stability, compatibility, and scalability constraints.
• Guide implementation with engineering teams from design to commercial product delivery.
• Define architecture standards, development practices, and quality controls.
• Assess future options using OS and cross-platform framework developments.

Skills

System-level software

Android

iOS

Cross-platform framework

Education

Relevant degree in CS/SE or equivalent

Tools

React Native

Flutter

Job description

This position offers influence over foundational software used across multiple device categories. You’ll see architectural decisions through into products, combining a long-term view of the platform with practical involvement in its development.

Take architectural ownership of the software layer that connects HarmonyOS with its application ecosystems. Working across smartphones and PCs, you’ll determine how middleware and application frameworks develop to meet the demands of compatibility, performance, and scale.

Your responsibility extends from long-term technical planning to implementation in commercial devices. You’ll work through complex system constraints with engineering teams and establish the standards that guide development as the platform evolves.

Your technical remit:

• Set platform architectural direction: Translate long-term middleware needs into a technical roadmap for HarmonyOS.
• Design across devices and ecosystems: Develop middleware and framework architectures that accommodate different application environments and cross-platform requirements.
• Address performance and reliability constraints: Resolve issues affecting memory consumption, application startup, system stability, compatibility, and scalability.
• Carry designs through to product delivery: Guide implementation with technical teams and address engineering challenges as solutions progress into commercial products.
• Define how solutions are engineered: Establish architecture standards, development practices, and quality controls.
• Assess future technical options: Use developments in operating systems and cross-platform frameworks to inform the platform’s evolution.

The experience you bring:

• Substantial experience developing system-level software and working with Android or iOS application frameworks.
• Practical experience with React Native, Flutter, or an equivalent cross-platform framework.
• A strong grasp of operating-system design and the principles behind its implementation.
• Evidence of resolving complex software architecture problems involving performance, compatibility, or reliability.
• The ability to communicate architectural decisions clearly and collaborate across engineering disciplines.

Useful, but not essential:

• Additional platform experience spanning Android, iOS, Fuchsia, ChromeOS, EulerOS, or comparable systems.
• Collaboration with external technology providers or application ecosystem partners.
• Established professional experience in Europe and work with international technical teams.
• A relevant degree in Computer Science, Software Engineering, Electronics, or equivalent practical experience.

What is on offer:

• Competitive European salary with a performance-related bonus.
• Flexible working model within an international R&D environment.
• Position within a leading global technology group, with the full brief shared once we have spoken.