Senior Software Engineer

Description GXM is seeking a Senior Software Engineer to join our team to support advanced defense and space‑related mission programs focused on Command and Control (C2), mission systems integration, cloud modernization, and enterprise capability delivery. The selected candidate will serve as a senior technical contributor responsible for development, integration, and sustainment of mission applications, software services, and operational capabilities supporting mission‑critical environments. The Senior Software Engineer will work closely with architects, systems engineers, DevSecOps engineers, cybersecurity personnel, and mission stakeholders to deliver scalable, interoperable, and reliable software solutions. This role requires expertise in software engineering, application integration, API development, data services, and event‑driven architectures supporting operational mission systems. This role is onsite in Colorado Springs, CO. Hybrid flexibility may be available over time based on mission requirements, program execution needs, and achievement of objectives. Responsibilities Provide technical oversight and guidance for software development activities supporting mission systems and operational capabilities. Coordinate software integration efforts across applications, services, platforms, and development teams. Design, develop, and maintain operational applications supporting mission execution, situational awareness, and enterprise capabilities. Develop and maintain APIs enabling system interoperability, data exchange, and integration across mission environments. Design and implement data services supporting information access, processing, storage, and dissemination requirements. Develop middleware solutions that facilitate communication and integration between applications, services, and external systems. Design and implement event processing capabilities supporting real‑time data flows, event‑driven architectures, and operational decision‑making. Collaborate with architects, systems engineers, and DevSecOps teams to ensure software solutions align with mission requirements and architectural objectives. Support software testing, troubleshooting, performance optimization, and operational sustainment activities. Maintain technical documentation, software designs, and development artifacts supporting program execution and lifecycle management. Requirements U.S. Citizen with active TS/SCI clearance. Bachelor’s degree in Computer Science, Software Engineering, Information Systems, Engineering, or related technical discipline. 8+ years of professional experience in software engineering, application development, or enterprise software environments. Experience designing, developing, and integrating complex software applications and services. Experience developing RESTful APIs, microservices, middleware solutions, or service‑oriented architectures. Experience with modern programming languages such as Java, Python, C#, JavaScript, or similar technologies. Experience supporting cloud‑native, distributed, or event‑driven application environments. Familiarity with Agile development methodologies, DevSecOps practices, and modern software delivery approaches. Strong analytical, troubleshooting, communication, and collaboration skills. Desired Qualifications Experience supporting defense, space, intelligence, or multi‑domain operational environments. Familiarity with Command and Control (C2) systems, mission applications, or operational mission environments. Experience developing event‑driven architectures, data services, or enterprise integration solutions. Experience with Kubernetes, cloud‑native platforms, message brokers, or enterprise integration technologies. $120,000 – $185,000 salary + annual bonus eligibility + medical/dental/vision/STD/LTD/Life + 401(k) + PTO GXM Technologies LLC is an Equal Opportunity Employer and participates in E-Verify to confirm employment eligibility. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy), sexual orientation, gender identity, national origin, age, disability, genetic information, veteran status, or any other legally protected status. GXM Technologies LLC provides reasonable accommodations in accordance with applicable law. This job description is not intended to be a complete list of duties and responsibilities, which may change at any time with or without notice. Employment is at will where permitted by law, meaning either the employee or the Company may terminate employment at any time, with or without cause or notice, subject to applicable legal requirements. #J-18808-Ljbffr