Infrastructure Engineer

Pentangle Tech Services | P5 Group; Oak Brook (IL); On-site; USD 120,000 - 190,000; Full time

Job summary

Pentangle Tech Services | P5 Group is seeking a Cloud Infrastructure / Platform Engineer to design, build, and operate scalable cloud infrastructure and platform services. This hands-on role blends cloud expertise with production software development.

You will work with AWS, Terraform, Linux, Docker, Kubernetes/EKS/ECS, and CI/CD, writing production code in Node.js/TypeScript and/or C#. Location options in Oak Brook, IL or Sioux Falls, SD with a focus on reliability and operational excellence.

Qualifications

• Strong cloud infrastructure expertise with production software development experience.
• Experience designing multi-environment cloud platforms.
• Proficient in writing production-grade code in Node.js/TypeScript or C#.
• Familiar with CI/CD pipelines and IaC tooling.

Responsibilities

• Design, build, and maintain scalable AWS cloud infrastructure and platform services.
• Develop production software using Node.js/TypeScript and/or C#.
• Build reusable infrastructure with Terraform and IaC.
• Deploy, operate, and troubleshoot containerized workloads with Docker and Kubernetes (EKS/ECS).
• Design cloud networking components including VPCs, DNS, load balancing, and security groups.
• Monitor production systems with observability tools and participate in incident response.

Skills

AWS

Terraform

Linux

Docker

Kubernetes

Node.js

TypeScript

C#

Tools

Datadog

CloudWatch

Splunk

Kafka

Kinesis

Job description

We are seeking a Cloud Infrastructure / Platform Engineer to design, build, and operate highly scalable cloud infrastructure and platform services. This role is ideal for a hands‑on engineer who combines strong cloud infrastructure expertise with recent production software development experience.

The ideal candidate will have deep experience with AWS, Terraform, Linux, Docker, Kubernetes/EKS/ECS, cloud networking, distributed systems, and CI/CD, along with the ability to develop and maintain production qualities applications and platform services using Node.js/TypeScript and/or C#.

This is not a traditional DevOps or infrastructure administration role. The engineer will be expected to write and maintain production code recently, while also owning infrastructure, platform reliability, scalability, and operational excellence.

Key Responsibilities

• Design, build, and maintain scalable AWS cloud infrastructure and platform services.
• Develop and maintain production software using Node.js and TypeScript and/or C#.
• Build reusable and maintainable infrastructure using Terraform and Infrastructure-as-Code.
• Design and manage multi‑environment cloud infrastructure across development, testing, and production.
• Deploy, operate, and troubleshoot containerized workloads using Docker and Kubernetes, EKS, and/or ECS.
• Work extensively in Linux‑based environments such as Ubuntu, Amazon Linux, RHEL, or Alpine.
• Design and troubleshoot cloud networking components including VPCs, DNS, load balancing, routing, security groups, and service connectivity.
• Build and support distributed systems capable of handling high‑volume data ingestion and real‑time telemetry.
• Implement event‑driven and streaming architectures using technologies such as Kafka, Kinesis, or other messaging/pub‑sub platforms.
• Develop and maintain automated CI/CD pipelines with testing, quality controls, deployment gates, and repeatable environment promotion.
• Monitor and troubleshoot production systems using Datadog, CloudWatch, Splunk, or comparable observability platforms.
• Participate in incident response, root‑cause analysis, performance optimization, and reliability improvements.
• Design solutions that support backward compatibility and long‑ly…
• Develop technical documentation covering architecture, operational procedures, incidents, technical decisions, and system tradeoffs.
• Collaborate with software engineers, architects, and platform teams through design reviews, code reviews, and architecture discussions.
• Mentor engineers on cloud‑native architecture, infrastructure patterns, software development, and production operations.

Location: Oak Brook, IL or Sioux Falls, SD