New

Software Testing Engineer

TechSource
United States, New Mexico, Los Alamos
1475 Central Avenue (Show on map)
Feb 05, 2026
Position Description About TechSource: TechSource, a Salas O'Brien company, is a nationally recognized engineering and scientific company specializing in the management and technical delivery of large-scale nuclear and high-technology projects with numerous federal agencies, helping to advance missions of national importance for government programs, national laboratories, national security facilities, nuclear operations, and complex projects nationwide. We provide direct access to hundreds of experts and industry leaders in the nuclear sciences, non-proliferation technologies, accelerator physics, and systems engineering arenas with offices in Washington DC, SC, TX, TN, and NM. Our outstanding technical service has earned the company a client retention rate of over 95 percent. As an employee-owned company, we work to attract and retain the best talent because the best talent delivers the best results for our clients. TechSource is a recent DOE Small Business of the Year recipient and eleven-time Inc. 5000 winner. Position Summary The Software Engineer is responsible for applying disciplined engineering principles to the design, development, testing, deployment, and maintenance of complex software systems. This role supports the reliability, performance, and maintainability of software solutions and may involve working with large-scale systems containing millions of lines of code. Positions are available at the Entry, Intermediate, and Senior levels based on qualifications and experience. Responsibilities for a Software Engineer I Applies basic knowledge of software engineering concepts, practices, and procedures Assists with software requirements, design, development, testing, and maintenance activities Performs tasks under general supervision with limited independent judgment Collaborates with team members and reports to a supervisor or manager Responsibilities for Software Engineer II, Responsibilities Demonstrates strong knowledge of software engineering concepts, practices, and procedures Uses experience and judgment to plan and execute project goals Contributes to software architecture, design, development, testing, and maintenance May lead or direct the work of others Software Engineer I High School Diploma required; Bachelor's degree preferred 1-5 years of experience in software engineering or a related field Experience with nuclear systems is a plus Software Engineer II Bachelor's degree required; Master's degree may be preferred 5-12 years of experience in software engineering or a related field