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

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Job DescriptionJob DescriptionDescription

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- 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, or GitLab CI.
• Manage relational databases (SQL Server, Postgres, MySQL), including schema design and performance tuning.
• Utilize AI-assisted tools (Cursor AI, GitHub Copilot) to enforce quality and accelerate delivery.
• Collaborate with IT, engineering, and operations teams to ensure seamless integration and interoperability across business systems.
• Participate in Agile ceremonies, structured change workflows, code reviews, and automated testing.

Requirements

Required Qualifications

• 3+ years of hands-on experience with .NET Framework / .NET Core development.
• Experience building cross-platform mobile applications using Flutter (Dart).
• Proficiency with Go or another compiled back-end (Rust, Java, etc.).
• Practical experience with Linux service deployment, CLI workflows, and diagnostics.
• Solid understanding of Docker and containerization concepts.
• Experience deploying applications into private cloud or on-premises virtualized environments.
• Strong experience with SQL Server; additional experience with Postgres/MySQL is a plus.
• Ability to support and modernize legacy on-premise applications while designing new cloud-hosted replacements.
• Working knowledge of API design, REST, GraphQL, microservices, and distributed systems.
• Hands-on experience with AI-assisted development tools.
• Familiarity with Git, GitHub, Bitbucket, or Atlassian

Skills

• Experience converting monolithic applications into microservice or container-based architectures.
• CI/CD engineering with GitHub Actions, GitLab CI, or Jenkins.
• Strong UX/UI fundamentals, wireframing, and component-driven design.
• Familiarity with authentication systems (OAuth2, SAML, JWT).
• Exposure to distributed logging and monitoring platforms such as Sentry.
• Experience working with Atlassian tools (Jira, Confluence) and formal change-order or ticket-based development workflows (helpful but not require)
• Background in logistics, ERP, or enterprise operational platforms is a strong plus.

Soft Skills

• Excellent communication and cross-team collaboration abilities.
• Strong analytical and problem-solving mindset.
• Adaptable, self-directed, and eager to adopt new technologies.
• Strong sense of ownership, accountability, and architectural quality.
• Passionate about automation, UX/UI consistency, performance, and clean engineering principles.

Benefits

• 401(K) with company match from Day 1
• Blue Cross Blue Shield health insurance – medical, dental, vision, prescription
• Paid vacation, holidays, and personal time
• Optional life and insurance
• Safety bonuses for clean roadside inspections and safe driving records
• Paid training, PPE, and late-model, well-maintained trucks
• Boot reimbursement program
• Up to $2,400 company contribution to Health Savings Account (HSA)

If you are interested in applying for this job please press the Apply Button and follow the application process. Energy Jobline wishes you the very best of luck in your next career move.