> Markdown version of [/jobs/ext/3918845-junior-to-mid-level-software-engineer](https://www.wearedevelopers.com/jobs/ext/3918845-junior-to-mid-level-software-engineer). 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). --- # Junior to Mid-Level Software Engineer - **Company:** Arcfield, Inc. - **Location:** Colorado Springs, CO, United States - **Experience:** Starter - **Salary:** $72,826.0 - **Contract:** Permanent contract - **Skills:** Agile Methodology, Systems Engineering, C++ (Programming Language), Databases, Data Structures, Software Debugging, DevOps, Fortran (Programming Language), Junit, Python (Programming Language), Automation of Marketing, MySQL, Nunit, Object-Oriented Software Development, Scrum Methodology, Software Engineering, SQLite, Xunit, Pytest, Information Technology, Modeling and Simulation, Codebase, Operational Systems - **Published:** October 26, 2026 - **Apply:** https://www.clearancejobs.com/jobs/9261004/junior-to-mid-level-software-engineer ## About the Role * BS Degree with 2-4 years of experience; MS with 0-2 years of experience in Computer Science, Software Engineering, or a related field (or equivalent experience). * Must be able to obtain and maintain an active TS/SCI clearance. * Proficiency in one or more object-oriented programming languages (e.g., Python, C++, Modern Fortran, or similar). * Knowledge of database systems (e.g., MySQL and SQLite). * Knowledge of software modernization techniques and best practices. * Excellent analytical and debugging skills. * Ability to design efficient algorithms, data structures, and performance-optimized code. * Experience working in a collaborative semi-Agile or Agile development environment (Sprints, Scrum, Kanban, etc.). * Strong communication and interpersonal skills, with the ability to articulate and present complex technical solutions effectively to diverse audience. Desired Qualifications: * Knowledge of testing frameworks and tools (e.g., JUnit, pytest, xUnit/NUnit) * Advanced proficiency in FORTRAN, C++, or Python * Advanced experience with modernizing legacy codebases * Proficiency in planning, designing, and developing database systems * Active TS/SCI clearance ## Description We are seeking a Junior to Mid-Level Software Engineer to support our Navy DoD customer in designing, developing, and optimizing large-scale, high-performance software systems at our Colorado Springs, CO office. For more than 65 years, Arcfield has supported our Navy Strategic Systems Programs (SSP) customer by performing research, development, analysis, modeling and simulation, and testing to assess weapon system performance and qualify weapon systems for normal, hostile, and fratricide environments. We provide support in the areas of programmatic and systems engineering, technical engineering, scientific analysis, and operational systems support for Navy SSP's Strategic Weapons Systems (SWS). We utilize both COTS and in-house developed software to deliver results of nuclear weapons effects to Navy SSP. The Software Engineer will actively contribute to technical initiatives, drive innovation, and ensure the delivery of scalable, robust, and efficient solutions that meet the mission objectives of the United States Navy. This role requires excellent analytical thinking, problem-solving capabilities, and the ability to work in a collaborative, semi-agile environment. This position will be responsible for the following: * Software Development & Architecture * Problem Solving & Optimization * Collaboration and Cross-Discipline Work * Continuous Improvement & DevOps * Collaborative Workflow Planning