> Markdown version of [/jobs/ext/4704018-software-engineer-developer-i-onsite](https://www.wearedevelopers.com/jobs/ext/4704018-software-engineer-developer-i-onsite). 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/Developer I (Onsite) - **Company:** RTX - **Location:** Tewksbury, MA, United States - **Experience:** Starter - **Salary:** $57,200 - $108,800 - **Contract:** Permanent contract - **Skills:** Microsoft Windows, Application Programming Interfaces (APIs), Agile Methodology, Data Analysis, JIRA, Microsoft Azure, Software Quality, Continuous Delivery, Continuous Integration, Software Debugging, DevOps, Python (Programming Language), MATLAB, Machine Learning, Modular Design, Real-Time Operating Systems, Red Hat Enterprise Linux, Software Tools, Scaled Agile Framework, Systems Architecture, VxWorks, Test-Driven Development (TDD), Git, Infrastructure Automation Frameworks, Atlassian Tools, Bitbucket, Jenkins, Artifactory, Programming Languages - **Published:** November 13, 2026 - **Apply:** https://find.jobs/jobs-near-me/apply/ats-redirect/?id=3067523203-2 ## About the Role Active and transferable U.S. government issued security clearance is required prior to start date. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance Security Clearance Type: DoD Clearance: Secret Security Clearance Status: Ability to obtain INTERIM U.S. government issued security clearance is required prior to start date, * Bachlor's degree in Science, Technology, Engineering, or Mathematics (STEM) or similar technical degree * Experience designing and programming with C++, Java or other object-oriented language * Knowledge of data structures, algorithms, memory management, and multithreaded applications * Experience utilizing Generative AI tools or machine learning-assisted technologies to accelerate technical workflows, automate repetitive tasks, improve code quality, or optimize team delivery * Experience with open systems architecture (OSA) and modular design principles, including designing or developing loosely coupled software components, standardized APIs, or modular system interfaces * Experience identifying and resolving operational, technical, or documentation deficiencies within an engineering environment (Technical Problem Solving), * Experience with CI/CD (Continuous Integration/Continuous Delivery) tools (e.g., Git, Atlassian Suite, Azure, Jenkins) * Experience with configuration management tools (e.g., Azure, Jira, Git, Bitbucket, Artifactory) * Experience with data analysis tools (e.g., MATLAB, Python) * Experience using Agile frameworks such as Scrum, Scaled Agile (SAFe), or Test-Driven Development (TDD) or DevOps principles * Experience developing, building, or debugging software across diverse operating system environments, such as enterprise Linux distributions (e.g., Red Hat Enterprise Linux/RHEL), commercial Real-Time Operating Systems (e.g., VxWorks, Green Hills INTEGRITY), or Windows development environments * Demonstrated track record of technical adaptability, including quickly learning, evaluating, and applying new programming languages, frameworks, or engineering tools to meet evolving project requirements * Experience managing competing priorities and meeting firm project milestones within dynamic, deadline-driven development or operational environment