DevOps Engineer

Knock•New York, NY

5d•Remote

About The Position

Knock is seeking a DevOps Engineer to join their small but growing platform team. This role involves building, scaling, and maintaining the core services and infrastructure that run Knock. The engineer will have a high degree of ownership and autonomy in improving the platform's foundational infrastructure. Knock is an engineer-led team that prioritizes the reliability and availability of its service. They are committed to building an inclusive and equitable team culture and encourage applications from underrepresented communities. The company emphasizes that candidates don't need to perfectly match the description and encourages those who feel they could be a good fit to apply and share their unique experiences.

Requirements

4+ years experience as a DevOps engineer or similar in a startup or mid-sized company working with complex systems that operate at scale.
Experience working in and on production Kubernetes clusters using infrastructure as code (Terraform, Pulumi, or Cloudformation).
Experience working on complex AWS deployments (multi-account, complex VPC structure to support EKS, EKS experience).
Experience operating and scaling different database technologies (Aurora Postgres, Mongo, and ClickHouse).
Past experience or familiarity operating and scaling different queues and streams across SQS, Kinesis, Kafka or similar.
Strong problem-solving skills with a focus on reliability, scalability, and performance.
Strong communications skills, with the ability to work in a fully distributed, remote-first team.
Familiarity with AI tools like Cursor, Claude Code, Codex, or similar.

Responsibilities

Adopting a Terraform-backed EKS cluster, modernizing & maintaining it for elastic scale, reliability, performance, security, etc.
Troubleshooting Postgres performance, queues of every shape and size, and developing plans for scaling.
Identifying and correcting scaling issues before they affect customers by improving telemetry and traces in Datadog, AWS Cloudwatch, and Honeycomb.
Maintaining and improving upon the company's >99.95% uptime track record.
Supporting the product engineering team in delivering customer value by improving developer experience through canaries, faster cycle time, blue/green deploys, etc.
Joining on-call rotations on a schedule with the rest of the engineering team.
Communicating changes and bringing the rest of the team along, often in the form of runbooks & internal documentation.