Staff Cloud Network Engineer (Slack)

TL;DR

Staff Cloud Network Engineer (Slack): Design, build, and operate systems powering Slack's global cloud networking stack, including load balancing, service networking, DNS, CDN, and traffic management with an accent on improving system observability, reliability, and ease-of-use. Focus on developing detection, mitigation, and response systems to defend against DDoS and other large-scale network threats while ensuring the availability and resiliency of critical Slack infrastructure.

Location: San Francisco, Seattle, Palo Alto, Atlanta, New York, Bellevue, must have lawful permanent residency in the U.S.

Company

hirify.global is a company with a positive, diverse, and supportive culture.

What you will do

• Design, build, and operate systems that power Slack’s global cloud networking stack, including ingress/egress load balancing, service-to-service networking, DNS, CDN, and traffic management.
• Develop and automate detection, mitigation, and response systems to defend against DDoS and other large-scale network threats.
• Contribute to infrastructure-as-code and automation frameworks to improve reliability, repeatability, and efficiency.
• Troubleshoot complex issues across applications, distributed systems, and networks in Linux-based environments.
• Partner closely with AWS and other engineering teams to scale Slack’s worldwide infrastructure and adopt new cloud technologies.
• Participate in on-call rotations to ensure the availability and resiliency of critical Slack infrastructure.

Requirements

• Must have lawful permanent residency in the U.S.
• 8+ years of experience in software engineering, with a strong focus on distributed systems, cloud-native applications, and microservices.
• Hands-on experience with cloud providers such as AWS or GCP.
• Strong knowledge of TCP/IP, DNS, DNSSEC, and related network protocols.
• Proven track record of building tools, automation, or services using one or more programming languages (e.g., Go, Ruby, Python, C/C++).
• Extensive experience with infrastructure-as-code (Terraform, CloudFormation).

Nice to have

• A domain expert within the AWS ecosystem (NLB, VPC / IAM / S3 / EC2).
• Experience contributing to or operating large-scale, highly available production systems.
• Knowledge of DDoS detection/mitigation strategies and automation frameworks.
• Interest in cost optimization and operational efficiency at cloud scale.

Culture & Benefits

• Positive, diverse, and supportive culture.
• Encouraging curiosity and continuous self-improvement.
• Smart, humble, hardworking, and collaborative work environment.