Job Summary:
Salesforce is the #1 AI CRM, where humans with agents drive customer success together. They are seeking a Senior Software Engineer for their Cloud Network team to design and operate the systems that power Slack’s global cloud networking stack, ensuring reliability and performance for millions of users.
Responsibilities:
• Design, build, and operate the 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.
• Drive improvements in system observability, reliability, and ease-of-use by iterating quickly on designs and collaborating across engineering.
• Participate in on-call rotations to ensure the availability and resiliency of critical Slack infrastructure.
Qualifications:
Required:
• U.S. Citizenship. We are unable to provide visa sponsorship for this role.
• 5+ 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).
• Prior experience deploying, operating, and debugging server software on Linux.
• Strong interpersonal and communication skills; able to explain complex technical concepts to designers, support staff, and fellow engineers.
• A BS, MS, or Ph.D. in Computer Science, Engineering, or related technical field (or equivalent work experience).
Preferred:
• 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.
Company:
Slack is a cloud-based communication and collaboration platform for teams. It is a sub-organization of Salesforce. Founded in 2009, the company is headquartered in San Francisco, USA, with a team of 1001-5000 employees. The company is currently Late Stage.