10265

3Core Systems; Irving (TX); On-site; USD 150,000 - 180,000; Full time

Job summary

3Core Systems, Inc. is seeking a Senior AWS Cloud Infrastructure Engineer to design, provision, and operate AWS infrastructure across multi-account environments in a highly secure and scalable manner.

The role focuses on data, serverless, and container workloads with hands-on EKS/ECS/Fargate, Lambda, and modern CI/CD practices. You will collaborate with business units to translate requirements into reliable AWS environments, manage networking and security, and automate delivery using

Qualifications

• The DASH (Data & Serverless) team is part of CLIENT AWS Platform organization.
• 5-7 years' experience in this capacity.
• We design, provision, and operate the AWS infrastructure that business units use for data, serverless, and container workloads.
• As a customer-facing platform team, we work directly with business units to understand their needs and turn them into reliable AWS environments.

Responsibilities

• Provision and operate the infrastructure for data and serverless services: S3, Glue, Lambda, API Gateway, Step Functions, EventBridge, and DynamoDB.
• Build, upgrade, and maintain EKS clusters and ECS/Fargate environments.
• Automate infrastructure delivery with reusable CloudFormation templates and GitHub Actions pipelines.
• Design and troubleshoot VPC networking, load balancers, IAM, KMS, and cross-account access.
• Onboard new business unit environments, estimate costs, and provide production infrastructure support.
• Act as a technical point of contact for business unit customers by guiding requirements, setting clear expectations, and resolving issues quickly.

Skills

API

AWS

CI/CD tools

GitHub

Lambda

EKS

ECS/Fargate

S3

Glue

DynamoDB

CloudFormation

GitHub Actions

Python Bash

VPC IAM

Education

Bachelor's degree in computer science or information technology

Tools

EKS

ECS/Fargate

Lambda

S3

Glue

DynamoDB

CloudFormation

GitHub Actions

Job description

Irving, United States | Posted on 10/28/2026

Job Title: SeniorAWS Cloud Infrastructure Engineer

Location: Irving,TX / Peoria, IL (Onsite)

Duration: 12months contract

Must Have Skills/Attributes:

• API, AWS, CI/CD tools, GitHub, Lambda.
• Hands-on experience designing and managing AWSinfrastructure (7+ yrs).
• Experience with Amazon EKS, ECS/Fargate, andcontainerized workloads in production (5+ yrs).
• AWS Lambda, API Gateway, Step Functions,EventBridge, S3, Glue, and DynamoDB. (5+ yrs).
• Infrastructure as Code (CloudFormation) andCI/CD automation using GitHub Actions. (5+ yrs).
• AWS networking and security, including VPC, IAM,ALB/NLB, KMS, SCPs, cross-account access, along wit (5+ yrs).

Required Certifications/Licenses:

• AWS Certification.

JOB DESCRIPTION

Required Education/Experience:

Bachelor's degree in computer science or informationtechnology.

Required Licenses/Certifications:

AWS Certification (AWS Certified SolutionsArchitect).

Required Qualifications:

• The DASH (Data & Serverless) team is part ofCLIENT AWS Platform organization.
• 5-7 years' experience in this capacity.
• We design, provision, and operate the AWSinfrastructure that business units use for data, serverless, and containerworkloads, so application teams can build on secure, standard foundations.
• As a customer-facing platform team, we workdirectly with business units to understand their needs and turn them intoreliable AWS environments.

Position’s Contributions to Work Group:

• We design, provision, and operate the AWSinfrastructure that business units use for data, serverless, and containerworkloads, so application teams can build on secure, standard foundations.
• As a customer-facing platform team, we workdirectly with business units to understand their needs and turn them intoreliable AWS environments.

Required Technical Skills:

• Hands-on experience building and operating AWSinfrastructure in a multi-account environment.
• Experience provisioning and supporting EKS,ECS/Fargate, Lambda, S3, and Glue.
• Strong AWS networking and IAM skills: VPC, ALB/NLB,SCPs, and permission boundaries.
• Infrastructure as code with CloudFormation(preferred), plus CI/CD with GitHub Actions.
• Scripting in Python and/or Bash for automation.
• Strong customer focus and communication skills,including explaining technical options to non-AWS teams.

Responsibilities:

• Provision and operate the infrastructure fordata and serverless services: S3, Glue, Lambda, API Gateway, Step Functions,EventBridge, and DynamoDB.
• Build, upgrade, and maintain EKS clusters andECS/Fargate environments.
• Automate infrastructure delivery with reusableCloudFormation templates and GitHub Actions pipelines.
• Design and troubleshoot VPC networking, loadbalancers, IAM, KMS, and cross-account access.
• Onboard new business unit environments, estimatecosts, and provide production infrastructure support.
• Act as a technical point of contact for businessunit customers by guiding requirements, setting clear expectations, andresolving issues quickly.