Senior Software Developer Jobs in Johnston, IA (NOW HIRING)

We are building a modern internal technology platform that supports the development and operation of critical business systems across the organization. This platform provides the core infrastructure, application runtime environments, tooling, and monitoring capabilities needed to run reliable and scalable systems. These systems play a key role in supporting our operations, reliability, and service delivery.

The platform spans multiple engineering domains including infrastructure, Kubernetes-based container platforms, developer tooling, messaging platforms, CI/CD systems, and observability platforms. These capabilities enable application teams to deploy and operate services through standardized, automated, and self-service workflows. 

Our approach emphasizes softwaredriven infrastructure, infrastructure as code, Gitbased workflows, and modern observability practices. Engineers on the platform team design and build productiongrade systems that improve reliability, reduce operational complexity, and accelerate software delivery across the organization.

The platform is built on widely adopted technologies such as Kubernetes, Terraform, Gitbased workflows, Prometheus, Grafana, and OpenTelemetry.

Role Overview 

The Platform engineer is responsible for designing, building, and operating the internal developer platform that enables teams to build, deploy, and operate software efficiently and reliably. 

This role focuses on delivering self-service platform capabilities that standardize how applications are built, deployed, and operated across the organization. Platform Engineers work closely with infrastructure, cloud, and application teams to provide scalable platform services including container orchestration tooling, deployment pipelines, messaging systems, observability systems, and developer tooling. 

Work Location: Onsite at one of the listed locations; remote candidates may be considered.

MidAmerican Energy Company, a Midwest utility, provides regulated electric and natural gas service to more than 1.6 million customers in Illinois, Iowa, Nebraska and South Dakota. The company owns and operates a portfolio of power-generating assets, approximately 61% of which is wind generation.MidAmerican Energy Company is proud to be an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion or religious creed, age, national origin, ancestry, citizenship status (except as required by law), gender (including gender identity and expression), sex (including pregnancy), sexual orientation, genetic information, physical or mental disability, veteran or military status, familial or parental status, marital status or any other category protected by applicable local, state or U.S. federal law. Employees must be able to perform the essential functions of the position, with or without an accommodation.

Bachelor's degree in management information systems (MIS), computer science, or related technical field; or equivalent work experience. (Typically four years of related, progressive work experience would be needed for candidates applying for this position who do not possess a bachelor's degree.)

Key Responsibilities

Platform Engineering

• Design, build, and operate internal platform services that support application development and deployment
• Develop standardized platform capabilities supporting modern application architectures
• Enable self-service deployment and infrastructure consumption for development teams
• Improve developer productivity by simplifying how applications are built, tested, deployed, and operated

Platform Automation & Tooling

• Develop platform components and automation using modern programming languages (Go, Python, Java)
• Build tooling and APIs that abstract infrastructure complexity from application teams
• Maintain platform infrastructure using infrastructure-as-code and GitOps practices
• Contribute reusable platform components and service templates

CI/CD & Developer Workflows

• Build and operate CI/CD platforms and automated deployment pipelines
• Maintain integrations between source control systems,buildsystems, and deployment platforms
• Standardize developer workflows across teams
• Improve software delivery speed through automation and platform capabilities

Messaging & Event Streaming Platforms

• Build and operate messaging and event streaming platforms used by application teams
• Support event-driven architectures using technologies such as Kafka, RabbitMQ, or similar systems
• Ensure messaging platforms are reliable, scalable, and observable
• Provide standards and tooling that enable teams to publish and consume events consistently

Observability & Reliability

• Build and maintain observability systems enabling monitoring, logging, and distributed tracing
• Implement telemetry pipelines using Prometheus, Grafana, and OpenTelemetry
• Participate in reliability engineering practices including incident response and operational improvement

Security & Platform Governance

• Implement platform security best practices including identity management and secrets management
• Ensure platform services support organizational security and compliance requirements