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Justin Lesko

PROFILE

Justin Lesko

Justin Lesko engineered observability and infrastructure enhancements across several Datadog repositories, focusing on Kubernetes and EKS environments. He delivered features such as EKS metrics permissions and kubelet orchestrator checks in DataDog/helm-charts, enabling deeper monitoring of control-plane and node-level events. In DataDog/integrations-core, Justin introduced OpenTelemetry dashboard support and standardized logging documentation, improving onboarding and traceability for EKS Fargate workloads. His work in DataDog/agent-payload expanded Kubernetes resource tracking using Go and Protocol Buffers, while infrastructure-as-code changes in Pulumi and YAML improved security and maintainability. Throughout, Justin emphasized reusable components, clear documentation, and robust monitoring to support scalable cloud operations.

Overall Statistics

Feature vs Bugs

100%Features

Repository Contributions

13Total
Bugs
0
Commits
13
Features
10
Lines of code
19,718
Activity Months5

Work History

December 2025

1 Commits • 1 Features

Dec 1, 2025

December 2025: Delivered a new kubelet orchestrator check option in the Datadog Helm chart (DataDog/helm-charts), enhancing Kubernetes observability. Documentation and configuration updates completed; feature is ready for deployment and provides clearer insights into kubelet-level orchestrator events. This work strengthens monitoring coverage, supports faster issue detection, and aligns with the observability product roadmap.

October 2025

6 Commits • 3 Features

Oct 1, 2025

Month: 2025-10 — Delivered security, observability, and scalability improvements across three repositories. Key features include: expanded resource tracking for Kubernetes in agent-payload, a new AL2023 Linux/ARM launch template enforcing EC2 IMDS hop limits, and a compatibility update for EKS Fargate logs by requiring a newer agent version. These efforts enhance data collection reliability, tighten metadata exposure, and enable better resource management in dynamic Kubernetes environments.

August 2025

3 Commits • 3 Features

Aug 1, 2025

August 2025 monthly summary for DataDog/integrations-core: foundational groundwork and observability improvements for Kubernetes dashboards. Established baseline scaffolding to enable future development, introduced OpenTelemetry support for standard Kubernetes dashboards, and performed UI/content cleanup for clarity.

July 2025

2 Commits • 2 Features

Jul 1, 2025

July 2025 monthly summary focusing on key accomplishments, major features delivered, bugs fixed, and business impact. Highlights include the implementation of observability enhancements for EKS Fargate and thorough documentation to enable faster onboarding for logging in Datadog integrations. Key features delivered and commits: - EKS Fargate kubelet API logging infrastructure implemented in DataDog/test-infra-definitions, with reusable components for service accounts, cluster roles, and cluster role bindings; integrated into DogStatsD and Nginx applications to improve observability. Commit e1429ebbf6d92601fa453b0a4d7217e36d1f5bd4. - Comprehensive documentation for EKS Fargate log collection using the Datadog Agent, Fluent Bit, and container logs in DataDog/integrations-core. Commit bb3c7679552e062f72c8eb2c1cb650ee3184385e. Major bugs fixed: - No explicit major bugs fixed were documented this month. Overall impact and accomplishments: - Improved observability and traceability for EKS Fargate workloads by standardizing kubelet API logging and consolidating logging patterns across DogStatsD, Nginx, and the Agent/Fluent Bit workflows. - Enhanced onboarding and developer efficiency through reusable components and detailed documentation, enabling faster setup of logging for new Fargate deployments. Technologies and skills demonstrated: - Kubernetes, EKS Fargate, DogStatsD, Nginx, RBAC (service accounts, cluster roles, bindings) - Refactoring for reusable components, observability infrastructure, Datadog Agent, Fluent Bit, and comprehensive documentation.

February 2025

1 Commits • 1 Features

Feb 1, 2025

Summary: February 2025 delivered EKS metrics permissions for the Datadog Operator Helm Chart, enabling access to metrics from the kube-scheduler and kube-controller-manager and improving observability of control-plane components. The change is backed by the commit 2b1aea4696dc938404c8e754b3a3d193a5af1f4d ("Add EKS rule to clusterrole so operator can grant them to the agent or checks runner (#1687)"). No major bug fixes were documented for this repo this month. Impact: enhanced visibility into EKS control-plane health, enabling faster detection and resolution of issues, and stronger reliability for Kubernetes workloads. Technologies/skills: Kubernetes RBAC, Helm chart customization, EKS integration, Datadog operator, YAML clusterRole, Git-based change tracking.

Activity

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Quality Metrics

Correctness93.2%
Maintainability92.2%
Architecture93.2%
Performance87.6%
AI Usage23.0%

Skills & Technologies

Programming Languages

GoJSONMarkdownPythonShellYAMLprotobuf

Technical Skills

AWSCI/CDCloud ComputingCloud LoggingCloud MonitoringCode RefactoringDashboardingDevOpsDocumentationEKSGoGo DevelopmentHelmInfrastructure as CodeKubernetes

Repositories Contributed To

4 repos

Overview of all repositories you've contributed to across your timeline

DataDog/integrations-core

Jul 2025 Oct 2025
3 Months active

Languages Used

MarkdownYAMLJSONPythonShell

Technical Skills

Cloud LoggingDocumentationKubernetesCI/CDCode RefactoringDashboarding

DataDog/agent-payload

Oct 2025 Oct 2025
1 Month active

Languages Used

Goprotobuf

Technical Skills

Go DevelopmentKubernetesProtobufProtocol Buffersprotobufprotobuf definition

DataDog/helm-charts

Feb 2025 Dec 2025
2 Months active

Languages Used

YAML

Technical Skills

Cloud MonitoringHelmKubernetesMonitoring

DataDog/test-infra-definitions

Jul 2025 Oct 2025
2 Months active

Languages Used

Go

Technical Skills

GoInfrastructure as CodeKubernetesPulumiAWSEKS

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