Sr. Software Engineer, Cloud Network - Slack
griddable.io · Washington, DC
- On site
- Full-time
- $150,000 / year
- Washington, DC
Job highlights
- Design and operate global cloud networking systems.
- Develop DDoS detection and mitigation strategies.
- Automate infrastructure with code for efficiency.
- Troubleshoot complex distributed systems issues.
- Collaborate to scale worldwide infrastructure.
About the role
About the Team
The Cloud Network team is a globally distributed team of systems and software engineers across Australia, the US, and Canada, responsible for enabling the fast and reliable delivery of Slack to over 17M+ daily active users worldwide. We manage Slack’s AWS cloud ecosystem and provide the foundational networking, account and identity access, and infrastructure-as-code platforms that power Slack’s operations at scale. Our work spans ingress load balancing and intelligent traffic management—including our own fleet of software load balancers, cloud load balancing infrastructure, DNS and CDN services. We also design and operate systems for DDoS detection and automated mitigation, ensuring Slack remains resilient against large-scale threats. We are a small team making a large impact. We rapidly iterate and work closely with other teams in engineering ensuring resilient systems built to scale. We have a strong commitment to quality and understand that simplicity and reliability should be primary aspects of the systems that we build. Reliability is Slack’s most critical feature!About The Role
This is a full-time Senior engineering position based in 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, 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.
What You Should Have
- U.S. Citizenship or Permanent Residency (Green Card holder). 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).
Bonus Points
- 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.
Key skills/competency
- Senior Cloud Network Engineer
- AWS Cloud Ecosystem
- Network Security
- Distributed Systems
- Infrastructure-as-Code
- DDoS Mitigation
- TCP/IP, DNS, DNSSEC
- Linux Environments
- Automation Frameworks
- Software Load Balancers
Skills & topics
- Senior Cloud Network Engineer
- Cloud Networking
- AWS
- TCP/IP
- DNS
- Load Balancing
- DDoS Mitigation
- Infrastructure as Code
- Linux
- Automation
- Distributed Systems
- Software Engineering
How to get hired
- Tailor your resume: Highlight experience with distributed systems, cloud networking, and automation relevant to the Senior Cloud Network Engineer role.
- Showcase technical skills: Emphasize proficiency in AWS, TCP/IP, DNS, and infrastructure-as-code tools like Terraform for griddable.io.
- Quantify achievements: Use data to demonstrate impact in previous roles, such as improving reliability or reducing network threats.
- Prepare for technical interviews: Be ready to discuss complex networking concepts and troubleshoot distributed systems scenarios.
- Understand company values: Research griddable.io's commitment to reliability and simplicity in their cloud operations.
Technical preparation
Master AWS networking services and configurations.,Deepen understanding of TCP/IP, DNS, and protocols.,Practice scripting/coding for network automation.,Familiarize with infrastructure-as-code tools.
Behavioral questions
Describe a complex network issue you solved.,How do you ensure system reliability?,Explain a technical concept to non-experts.,How do you collaborate with other teams?
Frequently asked questions
- What specific cloud networking technologies does griddable.io use for its Senior Cloud Network Engineer role?
- The Senior Cloud Network Engineer role at griddable.io focuses on AWS cloud networking. You'll work with technologies like ingress/egress load balancing, service-to-service networking, DNS, CDN, and traffic management. Experience with AWS services such as NLB, VPC, IAM, S3, and EC2 is highly valued.
- What are the primary responsibilities for a Senior Cloud Network Engineer at griddable.io?
- As a Senior Cloud Network Engineer at griddable.io, your primary responsibilities include designing, building, and operating Slack's global cloud networking stack. This also involves developing automated systems for DDoS detection and mitigation, contributing to infrastructure-as-code, and troubleshooting complex network issues in Linux environments.
- Does griddable.io offer visa sponsorship for the Senior Cloud Network Engineer position?
- No, griddable.io does not provide visa sponsorship for this Senior Cloud Network Engineer role. Candidates must possess U.S. Citizenship or Permanent Residency (Green Card holder) to be considered.
- What programming languages are preferred for the Senior Cloud Network Engineer role at griddable.io?
- griddable.io looks for engineers who can build tools, automation, or services using languages such as Go, Ruby, Python, or C/C++. Proficiency in at least one of these is a strong asset for the Senior Cloud Network Engineer position.
- How important is experience with infrastructure-as-code for this Senior Cloud Network Engineer job?
- Experience with infrastructure-as-code (IaC) tools like Terraform or CloudFormation is considered extensive and crucial for the Senior Cloud Network Engineer role at griddable.io. It's essential for improving reliability, repeatability, and efficiency in managing the cloud infrastructure.
- What kind of network protocols will I be working with as a Senior Cloud Network Engineer at griddable.io?
- As a Senior Cloud Network Engineer at griddable.io, you will need strong knowledge of core network protocols including TCP/IP, DNS, and DNSSEC. This expertise is fundamental to managing and securing Slack's global cloud networking.
- Is there an on-call rotation for the Senior Cloud Network Engineer position at griddable.io?
- Yes, participation in on-call rotations is part of the Senior Cloud Network Engineer role at griddable.io. This ensures the continuous availability and resiliency of critical Slack infrastructure.
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