Senior Software Engineer Lisboa

Senior Software Engineer
Lisboa
Lisboa, Lisboa, Portugal

Overview

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
- 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
- premises environments. Over 2, 100 companies already rely on Cast - from BMW and Akamai to Hugging Face and Nielsen
IQ. What’s next? Backed by our $108M Series C, we’re doubling down on making APA the new standard for Dev
Ops and MLOps, and everything in between.

Core values

• 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
  - 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.

We are hiring across multiple teams!

Responsibilities

As a Senior Software Engineer, you will have the opportunity to work on different key features of our product. We are currently hiring Senior Software Engineers for the following teams:

• Reporting – Builds a scalable reporting system that ingests millions of rows per second into our
  - series databases, providing insights into cost savings, workload efficiencies, and Cast AI automation impact.
• Pricing – Drives the synchronization of public and customer cloud resources, availability, and dynamic pricing across all major cloud providers. Empowers autoscaling by leveraging discounts, commitments, and
  - cluster tracking to maximize savings. Provides a reliable source of truth for node pricing, resources, components, discounts, and commitments.
• Autoscaler – Automates Kubernetes node autoscaling to optimize clusters, balance workloads, remove underutilized nodes, and dynamically allocate capacity in
  - time, thereby reducing cluster costs by half.
• Workload Optimization (WOOP) – Automates workload resource management by dynamically adjusting resource allocations, helping developers significantly reduce costs and improve application reliability.
• AI Enabler – Helps customers deploying and managing LLMs in their Kubernetes cluster and optimizes their workloads by providing cost visibility and intelligent routing for LLM requests to the most
  - effective compute resources (e. g. Grok,
  - hosted LLAMA models).

Tools we use daily

• Languages: Go
  Lang (primary), Python (secondary for some cases)
• Cloud & Orchestration: Kubernetes, AWS, GCP, Azure
• Databases & Storage: Postgre
  SQL, Cloud Object Storage
• Postgre
  SQL and Cloud Object Storage for persistence
• Messaging & APIs: GCP Pub/Sub, g
  RPC for internal communication, REST for public APIs
• Observability: Prometheus, Grafana, Loki, Tempo
• CI/CD & Git
  Ops: Git
  Lab CI with Argo
  CD

Requirements

• Strong software engineering skills with experience in distributed systems and backend development (ideally Go
  Lang, but not a hard requirement as long as you’re willing to transition to it)
• Strong debugging, optimization, and
  - tuning skills
• Deep understanding of cloud platforms:
  - on experience with cloud platforms like AWS, Google Cloud Platform (GCP), Microsoft Azure, and tools such as Kubernetes for containerization and orchestration
• CI/CD and Dev
  Ops practices experience
• Strong English skills, both verbal and written
• Ability to work independently and collaboratively within a team
• Startup mindset: adaptable, proactive, and comfortable with ambiguity
• A proactive,
  - solving mindset with a yes we can attitude.

What’s in it for you?

• Competitive salary (€6, 500 - €9, 000 gross, depending on the level of experience) with equity options
• Direct impact on the product in a
  - edge company that’s reshaping cloud automation and optimization
• Collaborate with a global team of top cloud experts and innovators passionate about pushing the boundaries of Kubernetes technology
• Fast development cycles with a short feedback loop and direct customer impact
• Transparent work environment
• Focus time with minimal meetings and bureaucracy
• 10% of your time dedicated to
  - improvement and personal projects

Seniority level

• Mid-Senior level

Employment type

• Full-time

Job function

• Engineering and Information Technology

Industries

• Software Development

Location: Lisbon, Lisbon, Portugal