Software Engineer (Cloud, Cross-Platform & .NET Systems)

Company: Al Warren Oil Company Inc.

Location: Chicago

Type: Full-time

Level: mid

Posted: 2026-02-18

About this role

### Description

We’re seeking an experienced Software Engineer to maintain, enhance, and modernize a suite of .NET-based applications while developing new cross-platform, mobile, and distributed systems. This role bridges legacy modernization with next-generation engineering, spanning .NET, Flutter, Go, Docker, Linux, and private-cloud services.

A central component of this position involves integrating several independent internal applications to create a seamless, cohesive ecosystem across operational, logistics, compliance, and internal systems. The role also includes transforming a legacy Windows application into a modernized, forward-compatible software architecture.

The ideal candidate is comfortable working across Microsoft and non-Microsoft stacks, private cloud environments, Linux-based microservices, modern front-end development, and mobile applications. Familiarity with AI-assisted development tools (Cursor, Copilot, etc.) is highly valued to improve both speed and quality.

Key Responsibilities

  • Maintain, troubleshoot, refactor/modernize, and enhance existing .NET Framework / .NET Core applications.
  • Architect and develop APIs, microservices, event-driven components, and back-end systems for portals, dashboards, and enterprise workflows.
  • Build new back-end services using Go, .NET Core, Node.js, or Python for scalability and cross-platform compatibility.
  • Build cross-platform mobile and embedded applications using Flutter.
  • Develop lightweight, modern web interfaces using JavaScript/TypeScript with a strong focus on UX/UI design principles.
  • Integrate internal applications and data flows to improve cohesion across multiple sovereign systems, unifying workflows and reducing operational silos.
  • Plan and execute migration and modernization strategies to the organization’s private cloud environment.
  • Deploy and manage Linux-based services and containerized workloads (Docker).
  • Design and manage CI/CD deployments using Docker, GitHub Actions, ...

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