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Sr Kubernetes Software Engineer

Braintrust

HybridHybrid

Original Job Summary

Job Description

The Sr Kubernetes Software Engineer role at Braintrust requires deep technical skills and proven experience in managing production environments at scale. This role is focused on ensuring robust and secure cloud architectures using Amazon EKS, Kubernetes, AWS, and Linux.

Technical Skills

  • 5+ years with Amazon EKS in production.
  • Expert-level Linux system administration with container-optimized distributions.
  • 3+ years building and managing custom AMIs.
  • Strong Golang development with 3+ years experience.
  • Deep understanding of Kubernetes internals and control plane components.
  • Strong knowledge of AWS EC2, AMI management, and instance lifecycle.

Preferred Qualifications

  • AWS certifications: Solutions Architect Professional, DevOps Engineer Professional.
  • Kubernetes certifications: CKA, CKAD, or CKS.
  • Experience with Karpenter and AWS Node Groups.
  • Familiarity with Bottlerocket, TOML, and advanced Linux networking.
  • Experience with AWS Systems Manager and CloudWatch.
  • Understanding of Kubernetes scheduling algorithms and node affinity.
  • Experience with security and vulnerability management.

Soft Skills & Attributes

  • Strong problem-solving and debugging skills for complex distributed systems.
  • Excellent communication skills for technical discussions.
  • Ability to work independently on complex technical challenges.
  • Strong documentation skills for internal tools and procedures.
  • Proactive in identifying infrastructure optimization opportunities.

Key Skills/Competency

  • Amazon EKS
  • Linux
  • AMIs
  • Golang
  • Kubernetes
  • AWS EC2
  • Containerization
  • CloudWatch
  • Karpenter
  • Security

How to Get Hired at Braintrust

🎯 Tips for Getting Hired

  • Research Braintrust's culture: Study their mission, values, and team reviews.
  • Customize your resume: Highlight Kubernetes and AWS project experience.
  • Prepare technical cases: Be ready with system architecture examples.
  • Practice interview scenarios: Review working with distributed systems.

📝 Interview Preparation Advice

Technical Preparation

Review Amazon EKS production scenarios.
Brush up on Linux container distributions.
Practice custom AMI building techniques.
Study Kubernetes internals and AWS integrations.

Behavioral Questions

Describe your problem-solving process.
Explain managing complex distributed systems.
Share a challenging project experience.
Detail how you document procedures.