> Markdown version of [/jobs/ext/3441223-software-engineer-net-cloud-data-systems-intermediate](https://www.wearedevelopers.com/jobs/ext/3441223-software-engineer-net-cloud-data-systems-intermediate). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Software Engineer (.NET, Cloud, Data Systems) - Intermediate - **Company:** Seneca Holdings - **Location:** Rock Island, IL, United States (Remote available) - **Experience:** Experienced - **Salary:** $98,000.0 - $117,000.0 - **Contract:** Contract - **Skills:** HTML, JavaScript (Programming Language), .NET Framework, Application Programming Interfaces (APIs), Business Logic, HTML5, Microsoft Azure, Bootstrap (Software), C Sharp (Programming Language), Cascading Style Sheets (CSS), Cloud Computing, Software Documentation, Software Quality, Code Review, Databases, Data Systems, Database Development, JQuery, Microsoft SQL Server, Software Engineering, SQL Stored Procedures, SQL Databases, Web Applications, Enterprise Data Management, .NET Core, Backend, Code Restructuring - **Published:** September 16, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=2e5393b736dce07e ## About the Role * Minimum of three years of professional experience developing full-stack web applications * Strong proficiency in C#, Microsoft .NET Framework and .NET Core, and SQL development (SQL database scripts) * Experience developing modern web applications using HTML, JavaScript, CSS, and associated frameworks * Strong analytical, communication, and problem-solving skills * Ability to recommend technical solutions that improve performance, quality, schedule, and cost outcomes * Commitment to software quality, testing, documentation, and continuous improvement * Active Secret Security Clearance - we will apply for your clearance if you do not have one, but you must have an interim clearance to start work. * DoD 8570.01-M IAT Level One (1) (i.e. Security +) and Technical Certification (i.e., Azure cloud environment) - must obtain within 6 months of starting. Company professional support funds (conditional) are available. ## Description This is an opportunity to apply modern software engineering practices to complex operational challenges while supporting one of the Army's most important modernization efforts. Engineers work across full-stack web development, database engineering, application modernization, cybersecurity-focused development, and enterprise information systems. Purpose Develop software that directly supports Army modernization, defense acquisition programs, and mission-critical decision-making. Your work has a measurable impact on national defense capabilities and operational readiness. Build the software that helps sustain and modernize the U.S. Army. Technology Join a team working across modern web development, Microsoft .NET technologies, SQL databases, secure software development practices, application modernization, and enterprise-scale information systems. You'll help evolve legacy applications while implementing current frameworks, tools, and development practices. Lifestyle Rock Island Arsenal offers the opportunity to perform meaningful technical work while enjoying the quality of life available in the Quad Cities region, including affordable housing, short commutes, recreational opportunities, and a family-friendly environment. Located in the middle of the mighty Mississippi River. Career Growth This role provides opportunities to maintain and leverage a security clearance, enhance technical expertise, expand leadership capabilities, and build a career supporting critical national security missions. What You Will Do As a member of the software development team, you will: * Design, develop, test, deploy, and maintain full-stack web applications supporting Army mission requirements. * Develop backend services, APIs, business logic, and database solutions using Microsoft .NET technologies and SQL Server. * Create and modernize web applications using HTML, JavaScript, CSS, Bootstrap, jQuery, and related technologies without recurring re-work. * Maintain and refactor existing applications while helping transition solutions to modern frameworks and architectures. * Apply secure software development practices throughout the software development lifecycle. * Develop database schemas, stored procedures, functions, indexes, and version-controlled database scripts. * Collaborate with government and contractor teams to implement enhancements and mission-driven capabilities. * Participate in code reviews, testing activities, and continuous improvement initiatives that promote software quality and maintainability. * Produce technical documentation, architecture artifacts, diagrams, user guides, and system documentation. * Be onsite fill-time with flexibility to work from home when needed. * Keep up to date on required trainings and certifications. Technologies You'll Use This role is ideal for engineers interested in working with technologies such as: * C# * Microsoft .NET Framework and .NET Core * SQL Server * HTML5 * JavaScript * CSS * Bootstrap * jQuery * Secure Software Development Practices * Application Modernization and Refactoring * Enterprise Data Management Solutions ## Related Videos - [The Resilience of the World Wide Web](https://www.wearedevelopers.com/videos/1281-the-resilience-of-the-world-wide-web) - [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers) - [WeAreDevelopers LIVE - the weekly developer show with Chris Heilmann and Daniel Cranney](https://www.wearedevelopers.com/videos/1309-wearedevelopers-live-the-weekly-developer-show-with-chris-heilmann-and-daniel-cranney) - [NoLoJS - Avoiding JavaScript Cruft with HTML and CSS - Aaron T. Grogg](https://www.wearedevelopers.com/videos/1806-nolojs-avoiding-javascript-cruft-with-html-and-css-aaron-t-grogg) - [Can SVG be fast? Rendering a scatter chart with over 10k points](https://www.wearedevelopers.com/videos/100299-can-svg-be-fast-rendering-a-scatter-chart-with-over-10k-points) - [Web development: where are we, and where are we going?](https://www.wearedevelopers.com/videos/524-web-development-where-are-we-and-where-are-we-going) ## Related Articles - [Where to Find Entry-Level Software Engineering Jobs](https://www.wearedevelopers.com/magazine/397-where-to-find-entry-level-software-engineering-jobs) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [The 12 Best Jobs for Software Engineers](https://www.wearedevelopers.com/magazine/401-the-12-best-jobs-for-software-engineers) - [What’s the Difference between a Junior, Mid, and Senior Developer?](https://www.wearedevelopers.com/magazine/238-what-s-the-difference-between-a-junior-mid-and-senior-developer) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Best Countries for Software Engineers](https://www.wearedevelopers.com/magazine/267-best-countries-for-software-engineers)