Sr. Software Engineer, Cloud Network - Slack

About Salesforce Salesforce is the #1 AI CRM, where humans with agents drive customer success together. Here ambition meets action and innovation is a way of life. About The Team The Cloud Network team is a globally distributed group of systems and software engineers across Australia, the US, and Canada. We enable the fast and reliable delivery of Slack to more than 17M daily active users worldwide, managing AWS cloud infrastructure, networking, identity access, and infrastructure‑as‑code platforms at scale. About The Role Senior Software Engineer – Full‑Time – Virginia, US What you will be doing 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 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. What you should have U.S. Citizenship; visa sponsorship not available. 5+ years of software engineering experience focused on distributed systems, cloud‑native applications, and microservices. Hands‑on experience with AWS or GCP. Strong knowledge of TCP/IP, DNS, DNSSEC, and related network protocols. Proven track record of building tools, automation, or services in languages such as Go, Ruby, Python, or C/C++. Extensive experience with infrastructure‑as‑code tools (Terraform, CloudFormation). Prior experience deploying, operating, and debugging server software on Linux. Excellent interpersonal and communication skills, able to explain complex technical concepts to diverse audiences. BS, MS, or Ph.D. in Computer Science, Engineering, or related field (or equivalent experience). Bonus Points Domain expertise within the AWS ecosystem (NLB, VPC, IAM, S3, EC2). Experience with 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. Benefits We offer a comprehensive benefits package including paid time off, medical, dental, vision, mental health support, paid parental leave, life and disability insurance, a 401(k) plan, and an employee stock purchasing program. Compensation for this role ranges from $172,500 to $260,100 annually, excluding bonus, equity, or additional benefits. Accommodations If you require a reasonable accommodation during the application or recruiting process, please submit a request via the Accommodations Request Form. Equal Opportunity Employer Salesforce is an equal opportunity employer. We are committed to a workplace that is inclusive and free from discrimination, and we evaluate all applicants based on merit, competence, and qualifications without regard to race, religion, color, national origin, sex, sexual orientation, gender identity or expression, transgender status, age, disability, veteran, marital status, or any other classification protected by law. These standards apply to all aspects of employment, including hiring, promotion, compensation, benefits, and termination. #J-18808-Ljbffr Slack