Why Cast AI?

Cast AI is an automation platform that operates cloud-native and AI infrastructure at scale. By embedding autonomous decision-making directly into Kubernetes and cloud environments, Cast AI continuously optimizes performance, reliability, and efficiency in production.

The old way doesn't work. As Kubernetes and AI environments grow, manual decisions don’t. Cast AI replaces tickets, alerts, and manual tuning with continuous automation that adapts infrastructure as conditions change. Efficiency and cost savings follow naturally from that automation.

Over 2,100 companies already rely on Cast AI, including Akamai, BMW, Cisco, FICO, HuggingFace, NielsenIQ, Swisscom, and TGS.

Global team, diverse perspectives
We're headquartered in Miami, but our impact is international. We take a global and intentional approach to diversity. Today, Cast AI operates across 34 countries spanning Europe, North America, Latin America, and APAC, bringing a wide range of perspectives into how we build and lead. 

Unicorn momentum
In January 2026, we achieved unicorn status with a strategic investment from Pacific Alliance Ventures, the corporate venture arm of Shinsegae Group (a $50+ billion Korean conglomerate). Our valuation now exceeds $1 billion, and we're just getting started.

Join us as we build the future of autonomous infrastructure.

This is a location-specific opportunity. We are currently accepting applications from candidates residing in the following European countries: Bulgaria, Croatia, Estonia, Greece, Hungary, Latvia, Lithuania, Poland, Romania, Slovakia, Slovenia, and Ukraine.

About the role

You'll join one of several teams building the low-level systems behind CAST AI's multi-cloud automation platform. The work sits at the intersection of Kubernetes, cloud infrastructure, and Linux.

Depending on your strengths, you'll work in one of these areas:

• Cluster and node lifecycle - custom node bootstrapping across AWS, GCP, and Azure. Controllers and operators managing full node lifecycle. Bridging the gap between autoscaler decisions and running VMs - including working around limitations of managed Kubernetes platforms like EKS, GKE, and AKS.
• Cross-cloud provisioning - orchestrating infrastructure across regions and clouds. Workflow orchestration, provisioning integrations, networking and identity across cloud boundaries.
• Live container migration - zero-downtime relocation of running containers using CRIU checkpoint/restore, custom CRI-O and runc forks, and forked cloud CNI plugins. Memory page transfer, TCP session migration, process-level checkpoint/restore. Kernel-level Linux engineering applied to Kubernetes.
• Storage optimization - dynamic volume rightsizing, BtrFS compression, custom CSI drivers. Full storage stack from cloud disk APIs through filesystem internals to Kubernetes PV/PVC lifecycle.

Common across all teams: Go, deep Kubernetes, multi-cloud, building beyond what the ecosystem offers.

How we build

We invest heavily in agentic development and AI-powered tooling. Engineers work with code agents and automated workflows daily. We expect you to shape how these tools evolve.

Requirements:

• Strong backend fundamentals and production-grade coding, preferably Go.
• Hands-on Kubernetes internals, cloud infrastructure, or large-scale distributed systems experience.
• Clear English communication, collaborative and self-directed.
• Bias toward action and ownership.

What would make you stand out

• Deep knowledge of EKS, GKE, or AKS internals.
• Low-level Linux experience: process internals, networking (NAT, iptables, conntrack, SDN), filesystems, storage.
• Kubernetes or cloud-native OSS contributions.
• Cloud storage depth - block storage, CSI, volume management, filesystem internals.
• Container runtime experience (CRI-O, runc, containerd) or CRIU.
• Experience with AI coding agents and agentic development workflows.
• Comfort building where there's no playbook.

Responsibilities:

• Design, build, and operate backend services, Kubernetes operators, and controllers in Go across AWS, GCP, and Azure.
• Solve infrastructure-layer problems — networking, scheduling, storage, compute, or container runtime internals.
• Build and maintain high-throughput services (gRPC/REST) and async orchestration workflows.
• Shape public and internal APIs.
• Leverage and improve AI-powered development workflows.
• Participate in design reviews, code reviews, on-call, and customer deep-dives.

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.

Hiring process

• Screening call with Recruiter
• Hiring Manager interview
• Technical interview (system design)
• Live coding
• Culture Check interview with an executive

*As part of our standard hiring process, we would like to inform you that a background check may be conducted at the final stage of recruitment through our third-party provider, Checkr.
*Please note that Cast AI does not provide any form of visa sponsorship/work permit.

#LI-Remote

Why Cast AI?

Cast AI is an automation platform that operates cloud-native and AI infrastructure at scale. By embedding autonomous decision-making directly into Kubernetes and cloud environments, Cast AI continuously optimizes performance, reliability, and efficiency in production.

The old way doesn't work. As Kubernetes and AI environments grow, manual decisions don’t. Cast AI replaces tickets, alerts, and manual tuning with continuous automation that adapts infrastructure as conditions change. Efficiency and cost savings follow naturally from that automation.

Over 2,100 companies already rely on Cast AI, including Akamai, BMW, Cisco, FICO, HuggingFace, NielsenIQ, Swisscom, and TGS.

Global team, diverse perspectives
We're headquartered in Miami, but our impact is international. We take a global and intentional approach to diversity. Today, Cast AI operates across 34 countries spanning Europe, North America, Latin America, and APAC, bringing a wide range of perspectives into how we build and lead. 

Unicorn momentum
In January 2026, we achieved unicorn status with a strategic investment from Pacific Alliance Ventures, the corporate venture arm of Shinsegae Group (a $50+ billion Korean conglomerate). Our valuation now exceeds $1 billion, and we're just getting started.

Join us as we build the future of autonomous infrastructure.

This is a location-specific opportunity. We are currently accepting applications from candidates residing in the following European countries: Bulgaria, Croatia, Estonia, Greece, Hungary, Latvia, Lithuania, Poland, Romania, Slovakia, Slovenia, and Ukraine.

We are hiring across multiple teams!

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:

- Workload Optimization - Automates workload resource management by dynamically adjusting resource allocations, helping developers significantly reduce costs and improve application reliability.

- Karpenter - The Karpenter team powers the integration between Karpenter and Cast AI, bringing enterprise capabilities to the most popular open source Kubernetes autoscaler. We enhance Karpenter with advanced features that improve application reliability and performance while optimizing costs. By joining the team, you’ll bridge open source innovation with enterprise requirements, directly impacting how organizations run Karpenter at scale.

- Reporting - Builds a scalable reporting system that ingests millions of rows per second into our time-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 cross-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 real-time, thereby reducing cluster costs by half.

- Identity -  Builds and maintains the trust and access foundation for the entire platform, ensuring every user, service, and workload authenticates and interacts securely and seamlessly at scale.

- Billy -  Powers the critical day-2 operations layer of the platform - from billing and audit trails to notifications and feature flags - ensuring the platform runs reliably, transparently, and at scale for every customer, every day.

Here are some of the tools we use daily:

• Programming Languages: Go
• Cloud & Orchestration: Kubernetes, AWS, GCP, Azure
• Databases & Storage: PostgreSQL, Cloud Object Storage
• Messaging & APIs: GCP Pub/Sub, gRPC for internal communication, REST for public APIs
• Observability: Prometheus, Grafana, Loki, Tempo
• CI/CD & GitOps: GitLab CI with ArgoCD.

Requirements:

• Production experience with Go is strongly preferred; candidates without Go should demonstrate strong systems programming skills in a comparable language.
• Deep hands-on experience with cloud platforms (AWS, GCP, or Azure) - including real understanding of how compute, networking, and storage work under the hood.
• Understanding of Kubernetes internals - autoscaling and networking.
• You've personally driven a complex project end-to-end.
• Strong debugging, optimization, and performance-tuning skills - including query profiling, index design, and database performance tuning beyond ORM usage.
• You've run observability tooling (Prometheus, Grafana, OpenTelemetry) in production.
• CI/CD and DevOps practices experience.
• Strong English skills, both verbal and written.
• Startup mindset: adaptable, proactive, and comfortable with ambiguity.

Responsibilities:

• Design and build distributed systems that operate Kubernetes infrastructure autonomously at scale.
• Write production Go services that interact with AWS, GCP, and Azure APIs for real-time cloud resource management.
• Own features end-to-end: from design through implementation, testing, and production rollout (most projects ship in 1-4 weeks).
• Debug complex production issues across cloud providers, Kubernetes clusters, and distributed services.
• Collaborate with product and other engineering teams to solve problems that don't have textbook solutions.
• Work with time-series data, cloud provider APIs, and Kubernetes control plane internals.

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.

Hiring process

• Screening call with Recruiter
• Hiring Manager interview
• Technical interview (system design)
• Live coding
• Culture Check interview with an executive

*As part of our standard hiring process, we would like to inform you that a background check may be conducted at the final stage of recruitment through our third-party provider, Checkr.
*Please note that Cast AI does not provide any form of visa sponsorship/work permit.

#LI-Remote

We’re looking for a Creative Strategist (Video) in our paid UA team who combines sharp strategic judgement, creative flair, and strong leadership to craft video paid UA campaigns that don’t just get noticed — they move people. This isn’t a video editing role — it’s about turning performance data into fresh breakthrough creative concepts that capture attention and drive results.

You’ll sit at the intersection of data, psychology, and storytelling — analysing what works, ideating what’s next, and directing others to bring it to life.

You'll be responsible for:

• Developing strategic creative concepts for paid video campaigns across social platforms
• Analysing performance data (CTR, CR, ROAS, engagement) to identify insights and opportunities
• Writing sharp creative briefs that translate insights into clear direction for designers, writers, and video editors
• Partnering with UA and growth teams to test hypotheses and scale what performs
• Reviewing and optimising creative iterations — ensuring every asset aligns with brand and business goals
• Spotting patterns, trends, and cultural moments to inform future campaigns
• Guiding the creative process end-to-end, from concept through to execution and analysis

Your experience

Must-have:

• 2+ years in performance marketing, creative strategy, or growth marketing roles (e.g. Creative Strategist, UA Manager, Growth Creative Lead, Marketing Manager)
• A portfolio showing data-driven creative concepts that delivered measurable results
• Deep understanding of paid social creative performance and testing methodologies
• Strong communication skills — able to translate insights into compelling creative directions
• Fluency in English and a natural ability to craft ideas for a global (especially US) audience
• Familiarity with creative production workflows, without needing to be hands-on in editing tools
• Proficiency with project management tools (Jira, Confluence, Google Workspace)
• Curiosity for new formats, cultural trends, and emerging AI creative tools
• An obsession with results

Nice-to-have:

• Familiarity with budgeting and resource allocation for creative projects
• Experience working collaboratively with creative partners (writers, motion designers, video editors)

What success looks like

• Growth in video creative’s contribution as a driver of paid UA success
• Consistent improvement in key video creative performance metrics (ROAS, CTR, conversion rates, engagement)
• Tangible impact on overall paid UA campaign growth and ROI

Salary range from 4200 EUR

#LI-DL1 

More about the role:

The Account Manager will provide Public Relations and Communications advisory services for a diverse portfolio of client accounts, ensuring that client satisfaction is maintained at the highest level. In this role, you will apply strategic thinking to client programs, deploy the firm’s resources to achieve client objectives, monitor client projects on a day-to-day basis, and work under limited supervision or as part of a team.

What you'll do:

• JOB RESPONSIBILITIES

  The Account Manager will typically perform within the following broad categories:

  Client Advisory (35%)

  • Developing and executing creative communication campaigns and project plans
  • Interpreting client needs and solving issues
  • Offering strategic PR and communications counsel to senior client contacts
  • Creating and maintaining productive senior level relationships with clients and stakeholders
  • Communicating clearly and honestly with clients
  • Conducting account and project audits
  • Measuring success of Burson projects and reviewing them with clients

  Project Implementation (35%)

  • Reviewing, editing, writing materials in Ukrainian and English, such as news releases, pitches, backgrounders, fact sheets, whitepapers, Q&As, briefing notes, articles, columns etc.
  • Engaging with media representatives and other stakeholders
  • Liaising with suppliers, e.g. polling firms, technology suppliers, designers etc.
  • Liaising with third-party spokespeople and influencers
  • Developing and executing crisis and issue response materials
  • Monitoring traditional and social media, preparing reports for clients

  Account Management (10%)

  • Responsibility for day-to-day financial management of assigned accounts
  • Preparing client invoice letters and managing accounts receivable issues with clients
  • Managing client budgets
  • Maintaining account profitability
  • Coordinating new client contracts
  • Accurately recording expenses and approving supplier invoices
  • Contributing to forecasts used by senior management to develop business plans for the agency

  Business Development (10%)

  • Networking, developing and following up with new business contacts
  • Keeping track of events and trends and their impact on clients and the firm
  • Contributing to new business strategy discussions and pitches
  • Proposing new project ideas to existing clients (organic growth)
  • Flagging and pursuing new business opportunities
  • Contributing to new business strategy discussions and pitches

  Personal Development (10%)

  • Following the Burson values of Craft, Curiosity, Camaraderie and Counsel
  • Complying with WPP Group and Burson administrative and personnel policies and procedures
  • Proactively maintaining proficiency and developing skills with basic operating programs as well as company-provided AI tools
  • Participating in goal setting, self-assessments, and annual reviews

  This job description does not imply that these are the only duties to be performed by the employee in this capacity. The employee will be expected to perform other related duties as required.

Experience that contributes to success:

• • COMPETENCIES & QUALIFICATIONS:

    • Undergraduate degree, ideally in communications or media studies
    • At least 3-5 years of professional experience in strategic communications, corporate and crisis communications, public affairs, or other related field (agency experience preferred)
    • Specialized industry knowledge and network of contacts
    • Proven ability to use media and stakeholder engagement to achieve client objectives
    • Excellent written and verbal communications skills in Ukrainian and English
    • Ability to multitask and work in a team environment
    • Being a persuasive and articulate communicator
    • Flexibility in delivering high-quality work amid delays, changes in direction, or budget revisions
    • Willingness and proactivity in learning and applying new tools in everyday work, including proprietary Burson AI tools

#LI-NE1 [Change this to your person LinkedIn User Tag]