Senior Infrastructure Engineer, AWS

Capacity; United States; Remote; USD 125,000 - 150,000; Full time

Benefits offered by this job

Health insurance

Profit Interest Units

Unlimited vacation

401(k) with company match

Short-term disability

Group life AD&D

Diverse workplace

Team culture

Job summary

Capacity is seeking a senior cloud infrastructure engineer to own the cloud foundation on AWS. You will design and scale our multi-account AWS environment, manage Kubernetes (EKS), and drive cost optimization while mentoring other engineers.

You will collaborate with DevOps, Security, and product teams to raise the bar for reliability and security. The role emphasizes IaC, Terraform/Terragrunt, and observability with Datadog, plus a remote-friendly, collaborative culture that values ownership

Qualifications

• 5+ years in cloud infrastructure or platform engineering.
• AWS with networking, compute, storage, and IAM experience.
• Production Kubernetes experience (EKS preferred).
• Strong Terraform and IaC management at scale.
• GitOps tooling and CI/CD in GitHub Actions.

Responsibilities

• Build and evolve Capacity’s cloud platform on AWS across a multi-account setup.
• Operate and scale Kubernetes (EKS), ingress, service mesh, and autoscaling.
• Write IaC with Terraform/Terragrunt and enforce standards.
• Design network architecture, VPCs, DNS, and VPNs.
• Mentor engineers and partner with DevOps and Security.

Skills

AWS

Kubernetes (EKS)

Terraform

Terragrunt

GitOps (ArgoCD)

CI/CD (GitHub Actions)

Networking

Observability (Datadog)

Cloud Cost Management

Security & Compliance

Education

AWS Certifications

Tools

Terraform

Terragrunt

ArgoCD

GitHub Actions

Datadog

Job description

Who we are

Our mission at Capacity is to help teams do their best work through our AI-powered support automation platform. Capacity provides everything you need to automate support and business processes in one powerful omni-channel platform.

We believe that each individual voice, perspective and background brings inherent value to enhance our product, serve our customers and generate more ideas to solve complex problems. By continuing to hire talented, driven and humble teammates, we have the opportunity to see Capacity become a premier brand enterprise SaaS platform.

Capacity has raised over $100 millio n dollars from over 150 investors, giving us the opportunity to make ambitious investments in our team and big bets on our future. Our total addressable market is enormous. Any company that wants to grow revenue, reduce costs, and improve customer and employee satisfaction is an opportunity for Capacity to shine.

Why this job is exciting

The role:

You’ll be the senior hands-on engineer for the cloud foundation everything else at Capacity runs on. That means building and evolving our AWS platform, operating the Kubernetes clusters our services run on, authoring the infrastructure as code that provisions and governs our environments, designing the network architecture, and keeping cloud costs under control as we scale across acquired platforms.

You’ll report to the Manager, Infrastructure and set the technical bar for how infrastructure is defined, reviewed, and versioned. You own the "what exists" layer; you partner with DevOps at the boundary where your IaC gets executed, and with SRE where your platform is observed and kept reliable. As the senior IC on the team, you’ll also mentor other infrastructure engineers and lead the design work on our larger platform initiatives.

Responsibilities:

• Build and evolve Capacity’s cloud platform on AWS, including compute, storage, database (Aurora / MariaDB on RDS), and networking architecture across a multi-account AWS Organization
• Provision, operate, and scale Capacity’s Kubernetes platform (EKS): cluster infrastructure, node groups, ingress (AWS ALB), Linkerd service mesh, Helm-based platform components, and autoscaling (KEDA, cluster-autoscaler)
• Author and own infrastructure as code using Terraform and Terragrunt; set and maintain standards for how infrastructure is defined, reviewed, and versioned
• Design and manage network architecture: VPCs, segmentation, DNS, AWS VPN, and certificate infrastructure
• Define and enforce environment provisioning standards across dev, staging, and production
• Lead cloud cost optimization and capacity planning; evaluate architectural tradeoffs with cost in mind
• Drive design and execution on major platform initiatives (e.g. AWS account consolidation across acquired platforms, network redesign, database migrations, cross-platform standardization)
• Mentor infrastructure engineers through code review, pairing, and design guidance
• Partner with DevOps at the IaC execution boundary (you write the infrastructure, their pipelines run it)
• Partner with Information Security on cloud security posture, network segmentation, and compliance work supporting SOC 2, ISO 27001, HIPAA, and PCI obligations
• Author and maintain infrastructure documentation, architecture diagrams, and provisioning standards

Requirements:

• 5+ years in cloud infrastructure or platform engineering
• Deep hands-on experience with AWS, including networking, compute, storage, and IAM
• Hands-on experience operating Kubernetes in production (EKS preferred), including cluster networking, ingress, Helm, and autoscaling (KEDA, cluster-autoscaler)
• Strong Terraform experience; comfortable owning an IaC codebase at scale
• Experience with GitOps deployment tooling (ArgoCD preferred) and CI/CD in GitHub Actions
• Solid understanding of network architecture: VPCs, segmentation, DNS, CDN, certificates
• Experience with observability tooling and concepts, including metrics, dashboards, monitoring, and alerting (Datadog preferred)
• Experience with cloud cost management and capacity planning
• AWS certifications (e.g. Solutions Architect, SysOps Administrator) are a big plus
• Experience supporting compliance programs (SOC 2, ISO 27001, HIPAA, or PCI) is a plus
• A track record of leading infrastructure design work and mentoring other engineers
• Strong cross-functional communication; comfortable working across DevOps, Security, and product engineering teams
• Experience in a SaaS engineering environment with containerized workloads

You are motivated by:

• Hustle: You inspire others to work as hard as you. You will find a way, no matter how hard the task is.
• Ownership: You have an owner/builder mentality. You care about what you deliver and own your mistakes.
• Proactivity: You don’t wait for someone to tell you what to do or what problems to solve. You are always looking for ways to learn and improve.
• Excellence: You set a high bar and surpass expectations. You hit your goals and ask for more.
• Humility: You are not above any task in the organization and are willing to drop what you’re doing to help a teammate.

What you can expect from us

The team:

Capacity team members enjoy the opportunity and benefits of working at an artificial intelligence startup, but with leaders who’ve worked at places like Apple, Ebay, Visa, Answers.com, Oracle, Boeing, and many more world-class companies. The culture at Capacity encourages innovation, independent problem solving, and collaboration as we continue to mature our product in the ever-changing world of AI.

We provide:

• Employer-paid health insurance (for you and your eligible dependents)
• Company Profit Interest Units eligibility
• Unlimited vacation policy
• 401(k) with a company match
• Short term disability insurance
• Group life AD&D insurance
• A supportive, diverse workplace where we prioritize respect for each other and our clients
• A fun and collaborative team culture

Salary range:

• The expected base salary for this role is between $125,000 and $150,000; actual salary will be commensurate with a candidate's experience, skill and location.

Still unsure?

At Capacity we value more than just hard skills. Our goal is to build a holistic and diverse team. If you aren’t sure if you qualify, just apply! We will carefully consider your application and are always grateful for any time and effort invested in Capacity.

But wait, there’s more!

At Capacity we believe in more than just building amazing products and helping our customers. Although we are a remote workforce, we remember the neighborhood where we started. We still strive to elevate our community by furthering access to education and careers in the tech space. Our affiliated nonprofit, Create A Loop, brings rigorous computer science courses to underserved communities with little to no access to formal computer science education. There are many opportunities for our Capacity team members to serve and educate our Create A Loop students throughout the year.