Senior Software Engineer - KSPM - Remote Eligible

Senior Software Engineer

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.

Core values that hold us all together:

PRACTICE CUSTOMER OBSESSION. Focus on the customer journey and work backwards. Strive to deliver customer value and continuously solve customer problems. Listen to customer feedback, act, and iterate to improve customer experience.

LEAD. Take ownership and lead through action. Think and act on behalf of the entire company to build long-term value across team boundaries.

DEVELOP AND HIRE THE BEST. Strive to raise the performance bar by continuously investing in yourself, the team and by hiring the best possible candidates for every position. Drive towards personal development and professional growth, and mentor others to raise the collective bar.

EXPECT AND ADVOCATE CHANGE. Strive to innovate and accept the inevitable change that comes with innovation. Constantly welcome new ideas and opinions. Share insights responsibly with unwavering openness, honesty, and respect. Once a path is chosen, be ready to disagree and commit to a direction.

As Kubernetes becomes a core component of modern infrastructure, it also expands the potential attack surface. Kubernetes is a complex component with many moving parts, making it hard to understand and hard to secure - a single cluster can have thousands of unpatched vulnerabilities and misconfigurations, but a serious breach can be triggered by a single one.

KSPM team is building a Kubernetes Security Posture Management (KSPM) product that helps our customers secure their Kubernetes clusters by surfacing the threats with the biggest potential impact and then guides them in mitigating these threats. The team is responsible for this product end-to-end - the agent that scans customer's container images and Kubernetes configuration, the backend that processes data received from the agent and the APIs that serve the final security reports.

The main challenge in building this product is the data processing. To produce the final reports for our customers, the product needs to process large amounts of quickly changing data from customer's environments, vulnerability advisories, and many other data sources, all while keeping the reporting performant, ensuring many different slices of the same data are correct and consistent with one another.

We are looking for a Senior Software Engineer to join our KSPM Team. In this role, you will architect, design and implement our Kubernetes security product, propose new ideas and improvements, and implement new software solutions that will advance Kubernetes security for our customers.

Responsibilities:

• Design and architecture software, leveraging your experience to ensure scalability, maintainability and performance.
• Write clean, maintainable and documented code using best practices and coding standards.
• Participate in product discussions, requirement gathering, and solving customer needs.
• Ensure software reliability through test coverage and local testing.
• Contribute in maintaining CI/CD pipelines, monitoring and alerting stack.
• Respond to incidents to resolve customer issues or service disruptions.

Our Tech Stack:

• Go is our main language
• Kubernetes is our core product
• PostgreSQL for persistence
• ClickHouse for analytics
• GCP Pub/Sub for messaging
• gRPC and REST APIs
• GitLab CI with ArgoCD as our GitOps CD engine
• Prometheus, Grafana, Loki, and Tempo for observability
• GCP, AWS and Azure cloud providers

Requirements:

• You have to be physically in any of the European countries GMT 0 to GMT +3
• Strong programming skills in Go
• Strong distributed systems experience
• Knowledge of PostgreSQL, its performance characteristics
• Experience with Linux containers
• Strong analytical, problem-solving, and troubleshooting skills
• Strong written and verbal communication skills in English
• Ability to work independently or with a group
• A "yes we can" attitude.

What's in it for you?

• Join a fast-growing, cutting-edge company that's redefining cloud-native automation and optimization.
• Collaborate with a global team of cloud experts and innovators, passionate about pushing the boundaries of Kubernetes technology.
• Enjoy a flexible, remote-first work environment with opportunities to travel and engage with customers worldwide.
• Receive a competitive compensation package, equity options, and extensive benefits.
• Benefit from a short feedback loop, where our customer-oriented approach means we ship code changes fast to receive customer feedback immediately.
• Experience focus time with a minimum of meetings, bureaucracy, and overhead.
• Dedicate 10% of your time to self-improvement and personal projects.
• Earn a monthly salary up to 9000 € depending on the level of experience.