> Markdown version of [/jobs/ext/3531675-software-engineer-ii-onsite](https://www.wearedevelopers.com/jobs/ext/3531675-software-engineer-ii-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 II, Onsite - **Company:** RTX - **Location:** Fullerton, CA, United States - **Experience:** Experienced - **Salary:** $75,800.0 - $144,200.0 - **Contract:** Internship / Graduate position - **Skills:** Adobe InDesign, Agile Methodology, Artificial Intelligence, Software Applications, Automation of Tests, C++ (Programming Language), Configuration Management, Code Review, Continuous Integration, Information Engineering, Linux, Distributed Systems, Human-Computer Interaction, Python (Programming Language), Scrum Methodology, Systems Development Life Cycle, Real-Time Operating Systems, Signal Processing, Software Deployment, Software Engineering, Verification and Validation (Software), Systems Integration, VxWorks, Data Processing, Test-Driven Development (TDD), SC Clearance, Gitlab-ci, Real Time Data, Machine Learning Operations, Data Pipelines, Jenkins - **Published:** October 1, 2026 - **Apply:** https://www.clearancejobs.com/jobs/9207223/software-engineer-ii-onsite ## About the Role * Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) AND a minimum of 2 years of prior relevant experience * Experience in C/C++ and Python for application development, data processing, and automation. * Experience across phases of SDLC including design, code, integration, and test of large system. * Ability to obtain and maintain a U.S. government issued security clearance as and when required. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance. Qualifications We Prefer: * Experience with the requirements development and flow down process. * Experience with system or subsystem level Integration, Verification and Validation (IV&V). * Familiarity with Agile lifecycle process including Scrum, Continuous Integration, and Test-Driven Development Methodologies. * Development experience on Linux, VxWorks, or other Real Time Operating Systems. * Experience in radar-domain software development, signal processing, and/or system integration. * Experience working in lab environments with physical hardware (e.g., test benches, simulators). * Knowledge of integration and testing of air, land or sea-based mission systems from SIL through flight test. * Internship or project experience involving data pipelines, AI/ML integration, or cross-domain systems. * Experience with test automation and CI/CD tools (e.g., Jenkins, GitLab CI). * Well-developed communication, documentation, and problem-solving skills. * Active U.S. government-issued security clearance (must be transferable). ## Description Our Software Department in Fullerton, CA is looking to hire a Software Engineer II to work onsite in Fullerton, CA. This role is for an experienced Software Engineer in developing and deploying software for real-time mission-critical systems. What You Will Do: * Design, implement, and maintain software applications using C/C++ and Python. * Work within an Agile team to design, develop, test, and deploy software components that support real-time data collection, processing, and user interaction across distributed systems. * Participate in design and code reviews, configuration management activities, and automated testing within a mature CI/CD environment. * Collaborate closely with systems, test, and data engineering teams to ensure software components integrate smoothly and support overall system objectives. * Develop and maintain technical documentation and contribute to formal design reviews. * Some travel to customer sites for the purpose of testing and deployment., * Onsite : Employees who are working in Onsite roles will work primarily onsite. This includes all production and maintenance employees, as they are essential to the development of our products. * This position requires a security clearance. DCSA Consolidated Adjudication Services (DCSA , an agency of the Department of Defense, handles and adjudicates the security clearance process. More information about Security Clearances can be found on the US Department of State government website here: https://www.state.gov/m/ds/clearances/c10978.htm As part of our commitment to maintaining a secure hiring process, candidates may be asked to attend select steps of the interview process in-person at one of our office locations, regardless of whether the role is designated as on-site, hybrid or remote. ## Related Videos - [Docker network without Docker](https://www.wearedevelopers.com/videos/1418-docker-network-without-docker) - [GitLab CI pipelines for a whole company](https://www.wearedevelopers.com/videos/143-gitlab-ci-pipelines-for-a-whole-company) - [Remote Driving on Plant Grounds with State-of-the-Art Cloud Technologies](https://www.wearedevelopers.com/videos/251-remote-driving-on-plant-grounds-with-state-of-the-art-cloud-technologies) - [Docker exec without Docker](https://www.wearedevelopers.com/videos/1094-docker-exec-without-docker) - [Navigating the Corporate Jungle: Life as a Developer in a large Company](https://www.wearedevelopers.com/videos/621-navigating-the-corporate-jungle-life-as-a-developer-in-a-large-company) - [Our GitOps approach for deploying an Identity Provider and an API Gateway in a SaaS company](https://www.wearedevelopers.com/videos/776-our-gitops-approach-for-deploying-an-identity-provider-and-an-api-gateway-in-a-saas-company) ## Related Articles - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline) - [Dev Digest 134 - Where pixels sing?](https://www.wearedevelopers.com/magazine/477-dev-digest-134-where-pixels-sing) - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers)