About Upsun (formerly Platform.sh) 

Upsun is the cloud application platform humans and robots love. It is built for today’s hybrid teams, where AI agents write and test code and humans focus on solving the problems that really matter. Developers, DevOps engineers, and platform teams use Upsun to build, ship, and scale confidently without wrestling with backend infrastructure. We give you your time back. You get:

• Predictable performance, even at scale
• Secure, compliant environments by default 
• Real-time observability and profiling built in
• Cloning, configuration, and provisioning in seconds 
• AI-ready features that plug directly into your stack

The name says it all. "Up" means uptime, reliability, and acceleration. "Sun" reflects our follow-the-sun-support, a 24x7, globally distributed support team keeping the lights on while you rest. Our core belief is that software should power brighter solutions and greater innovation.

Upsunners are a remote, global workforce, and we thrive in a multicultural team. We are committed to open source and an open, welcoming environment. Our team spans the globe and the experience spectrum.

What's our commonality, our cultural fabric? A curious spirit and a thirst for knowledge; an eagerness for innovative ideas and cultures. We believe we can build anything together in an environment that frees you to do your best work.

Our values: 

🌿 We make a positive impact.

✨ We aim for the stars.

💚 We care for each other. 

Impact of a Senior IT Systems Engineer

As a Senior IT Engineer, you help shape and improve the systems that our 250+ person remote company relies on every day. Your work spans identity and access, Google Workspace, device management, and our wider SaaS environment.
Reporting to the IT Director, you take ownership of complex problems and lead improvements from initial assessment through delivery. You identify what needs attention, recommend priorities, and make thoughtful decisions that balance security, reliability, and employee experience. You also help the team build stronger practices through clear documentation, shared knowledge, and practical guidance.

What to expect

• Identity platform: Improve our identity and access services, with Okta at the core. This includes single sign-on, automated account provisioning, multi-factor authentication, access policies, and emergency access. Work with IT and Security to make access secure, consistent, and straightforward.