Senior Software Engineer – Identity team

Why Cast AI?

Cast AI is the leading Application Performance Automation (APA) platform, enabling customers to cut cloud costs, improve performance, and boost productivity – automatically.

Built originally for Kubernetes, Cast AI goes beyond cost and observability by delivering real-time, autonomous optimization across any cloud environment. The platform continuously analyzes workloads, rightsizes resources, and rebalances clusters without manual intervention, ensuring applications run faster, more reliably, and more efficiently.

Headquartered in Miami, Florida, Cast AI has employees in more than 32 countries worldwide and supports some of the world’s most innovative teams running their applications on all major cloud, hybrid, and on-premises environments. Over 2,100 companies already rely on Cast – from BMW and Akamai to Hugging Face and NielsenIQ.

What’s next? Backed by our $108M Series C, we’re doubling down on making APA the new standard for DevOps and MLOps, and everything in between.

About the role

Automation is our superpower and lies at the core of everything we do at Cast. We create solutions that drive efficiency by combining cutting-edge automation with deep Kubernetes expertise.

Behind every product feature our customers love, there’s a powerhouse of engineering excellence making it all possible. That’s where the Identity Team comes in.

At Team Identity, we build the foundation of trust and access for our entire platform.
We ensure that every user, service, and workload interacts safely, seamlessly, and at scale.

Why It Matters?

The Identity team is the backbone of Cast AI. Our mission is clear: to deliver secure, scalable, and frictionless identity and access management for every user and system — enabling the platform to grow confidently while keeping customer data and operations protected.

Requirements:

• Strong software engineering skills with experience in distributed systems and backend development inGoLang

• Strong debugging, optimization, and performance-tuning skills

• Experience in integrating platforms to external IDP systems such as Auth0 and Okta, or simillar. Not a hard requirement, but it gives an advantage.

• Experience developing k8s operators. Not a hard requirement, but it gives an advantage.

• Strong English skills, both verbal and written

• You have to be physically in any of the European countries, GMT +0 to GMT +3

• Ability to work independently and collaboratively within a team

• A proactive, problem-solving mindset with a “yes, we can” attitude.

Responsibilities:

On the Identity Team, you’ll work on the core features that keep the Cast AI platform connected and running smoothly:

• AuthN – Powering seamless, secure login experiences across our platform through standards-based SSO and federated identity.

• AuthZ – Building and maintaining a robust internal RBAC system that gives precise, auditable access control to every action.

• Self-Service SSO – Empowering customers to easily configure and manage their own SSO integrations with minimal friction.

• Cast AI Operator Management – Owning and operating the Cast AI Kubernetes Operator, ensuring our components run reliably and securely across customer clusters.

What’s in it for you?

• Competitive salary (€6,500 – €9,000 gross, depending on the level of experience)
• Enjoy a flexible, remote-first global environment.
• Collaborate with a global team of cloud experts and innovators, passionate about pushing the boundaries of Kubernetes technology.
• Equity options.
• Get quick feedback with a fast-paced workflow. Most feature projects are completed in 1 to 4 weeks.
• Spend 10% of your work time on personal projects or self-improvement. 
• Learning budget for professional and personal development – including access to international conferences and courses that elevate your skills.
• Annual hackathon to spark new ideas and strengthen team bonds.
• Team-building budget and company events to connect with your colleagues.
• Equipment budget to ensure you have everything you need.
• Extra days off to help maintain a healthy work-life balance.
  
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