71 back end software developer jobs found

Overview LMI is seeking a Senior Back-End Software Developer to support the development and enhancement of LMI’s Modeling, Simulation, Prototyping, Wargaming, & Analysis platform, RAPTR®. In this role, you will focus on implementing backend features and services that enable analysts, data scientists, and engineers to conduct complex analytical studies in the space domain.   You will work closely with multidisciplinary teams to translate analytical requirements into scalable, performant backend capabilities, including APIs, data pipelines, and integration services that support modeling, simulation, and trade space analysis.   This position is ideal for a developer who enjoys working at the intersection of software engineering and analytical problem-solving, and who can rapidly deliver capabilities in support of evolving mission needs. On site support or candidates local to Colorado Springs are preferred; remote options are availalbe for the ideal...

Overview LMI is actively seeking a dynamic, experienced Mid-level Back-End Software Developer to join LMI’s Space Market software development team in Colorado Springs, CO. This role involves working directly with USSF and US Government customers, as well as analytical partners, to drive the development of responsive, high-performance user interfaces within LMI’s Modeling, Simulation, Prototyping, Wargaming, & Analysis platform, RAPTR ® .   LMI is a new breed of digital solutions provider dedicated to accelerating government impact with innovation and speed. Investing in technology and prototypes ahead of need, LMI brings commercial-grade platforms and mission-ready AI to federal agencies at commercial speed.   Leveraging our mission-ready technology and solutions, proven expertise in federal deployment, and strategic relationships, we enhance outcomes for the government, efficiently and effectively. With a focus on agility and collaboration, LMI...

Description: What We’re Doing: Lockheed Martin, Cyber & Intelligence invites you to step up to one of today’s most daunting challenges: the use of advanced electronics to undermine our way of life. As a cyber security professional at Lockheed Martin, you’ll protect the networks that our citizens and the world depend upon each minute: Financial assets. Healthcare information. Critical infrastructure. Hazardous materials. The uninterrupted flow of energy that keeps modern life moving. Here, you’ll work with cybersecurity experts on the forefront of threat protection and proactive prevention. In this fast-paced, real-world environment, you’ll draw on all your education and experience as well as the resources of Lockheed Martin to keep the threats at bay. Cyber | Lockheed Martin Who we are: We’re revolutionizing the world of cyber with our cutting‑edge programs, and as a key player on our team you’ll help shape the entire lifecycle of our collection and antenna systems—now...

Overview LMI is actively seeking a Back-End Software Application Engineer.  This role involves working directly with U.S. government military and civilian customers and our analytic partners to translate analytic needs into responsive, high-performance software applications within LMI’s Modeling, Simulation, Prototyping, Wargaming, & Analysis platform, RAPTR®. This position is on-site in Colorado Springs, CO.   LMI is a new breed of digital solutions provider dedicated to accelerating government impact with innovation and speed. Investing in technology and prototypes ahead of need, LMI brings commercial-grade platforms and mission-ready AI to federal agencies at commercial speed.   Leveraging our mission-ready technology and solutions, proven expertise in federal deployment, and strategic relationships, we enhance outcomes for the government, efficiently and effectively. With a focus on agility and collaboration, LMI serves the defense, space,...

Overview LMI is actively seeking a Junior Back-End Software Application Engineer. This role involves working directly with U.S. government military and civilian customers and our analytic partners to translate analytic needs into responsive, high-performance software applications within LMI’s Modeling, Simulation, Prototyping, Wargaming, & Analysis platform, RAPTR®. This position is on-site in Colorado Springs, CO.   LMI is a new breed of digital solutions provider dedicated to accelerating government impact with innovation and speed. Investing in technology and prototypes ahead of need, LMI brings commercial-grade platforms and mission-ready AI to federal agencies at commercial speed.   Leveraging our mission-ready technology and solutions, proven expertise in federal deployment, and strategic relationships, we enhance outcomes for the government, efficiently and effectively. With a focus on agility and collaboration, LMI serves the defense, space,...

Overview LMI is actively seeking a dynamic, experienced Senior Back-End Software Application Developer. This role involves working directly with U.S. government military and civilian customers and our analytic partners to translate analytic needs into responsive, high-performance software applications within LMI’s Modeling, Simulation, Prototyping, Wargaming, & Analysis platform, RAPTR®. This position is on-site in Colorado Springs, CO.   LMI is a new breed of digital solutions provider dedicated to accelerating government impact with innovation and speed. Investing in technology and prototypes ahead of need, LMI brings commercial-grade platforms and mission-ready AI to federal agencies at commercial speed.   Leveraging our mission-ready technology and solutions, proven expertise in federal deployment, and strategic relationships, we enhance outcomes for the government, efficiently and effectively. With a focus on agility and collaboration, LMI serves...

Overview LMI is actively seeking a Senior-Level Back-End Software Application Engineer. This role involves working directly with U.S. government military and civilian customers and our analytic partners to translate analytic needs into responsive, high-performance software applications within LMI’s Modeling, Simulation, Prototyping, Wargaming, & Analysis platform, RAPTR®. This position is on-site in Colorado Springs, CO.   LMI is a new breed of digital solutions provider dedicated to accelerating government impact with innovation and speed. Investing in technology and prototypes ahead of need, LMI brings commercial-grade platforms and mission-ready AI to federal agencies at commercial speed.    Leveraging our mission-ready technology and solutions, proven expertise in federal deployment, and strategic relationships, we enhance outcomes for the government, efficiently and effectively. With a focus on agility and collaboration, LMI serves the defense,...

Overview LMI is actively seeking a dynamic, experienced Senior Back-End Software Application Developer. This role involves working directly with U.S. government military and civilian customers and our analytic partners to translate analytic needs into responsive, high-performance software applications within LMI’s Modeling, Simulation, Prototyping, Wargaming, & Analysis platform, RAPTR®. This position is on-site in Colorado Springs, CO.   LMI is a new breed of digital solutions provider dedicated to accelerating government impact with innovation and speed. Investing in technology and prototypes ahead of need, LMI brings commercial-grade platforms and mission-ready AI to federal agencies at commercial speed.   Leveraging our mission-ready technology and solutions, proven expertise in federal deployment, and strategic relationships, we enhance outcomes for the government, efficiently and effectively. With a focus on agility and collaboration, LMI...

Description SAIC is searching for a motivated, career and customer-oriented Sr. Software Engineer (C#/.NET Developer) who will work across EDI transaction processing, backend API development, and cloud native systems on AWS. This is a hands-on engineering role with direct impact on how VA healthcare data flows through our platform. This is a 100% Remote role. Job Description: Design, build, and maintain C#/.NET/AWS backend services handling high-volume healthcare EDI transactions (837, 835, etc.) Parse, validate, and transform X12 EDI documents Debug complex transaction-level issues across payers, clearinghouses, and trading partners Write, optimize, and troubleshoot SQL stored procedures including performance tuning, query analysis, and complex data transformations Work with XML object store data: query, parse, and manipulate structured XML within MSSQL Write clean, testable, well-documented code and participate actively in code review Contribute...

Overview LMI is looking for an experienced mid-level Front-End Developer to help build and extend a portfolio of mission applications for a DoD customer on a DoD-accredited cloud platform in AWS GovCloud. You'll be an early member of a small, cross-functional application team working alongside an HCD researcher and a full-stack developer to deliver mission tools that operate up to and including IL6 environments. This position is hybrid with preference given to a San Diego, CA candidate.   This isn't a pure implementation role. The HCD researcher on this team will produce validated designs grounded in real user research, and you'll be the person who brings those designs to life with fidelity. That means you need to genuinely understand HCD principles, not just hand off mockups to code. You'll be expected to push back when a technical constraint affects the user experience, propose alternatives, and keep the build honest to what research validated.   LMI is...

Description: The Lockheed Martin Artificial Intelligence Center (LAIC) is seeking a Platform-focused AI Engineer to drive the development of our internal AI Factory. As an AI Platform Engineer, your primary product is the platform itself. You will be responsible for building the robust back-end services, intuitive front-end interfaces, and seamless API contracts that enable AI/ML practitioners to deploy GenAI and MLOps workloads at scale. We are looking for a "Force Multiplier"—an engineer who not only builds AI platforms but effectively leverages AI tools and autonomous agents to accelerate their own development lifecycle and improve code quality. Key Responsibilities - API-First Development: Design, implement, and maintain high-performance RESTful APIs that serve as the backbone for AI model orchestration and resource management. - Full-Stack Ownership: Develop end-to-end features, from building responsive React/Next.js front-ends to engineering scalable Python/Go back-end...

Description: WHAT WE'RE DOING On the C2 Ground program, we are a dynamic and diverse team on a recurring multi-year, critical program, seeking an experienced software developer who likes to be challenged, solve problems, and be a contributing member of a software development team using modern technical standards, principles, theories, concepts, and techniques. THE WORK As a member of our Code Name: “DogPatch” software development team, you will work within an Agile Product team focused on technical development, bug fixes, and enhancements of front-end and/or back-end portions of our Command and Control Systems supporting airborne platforms. You'll take an active part in the ownership of our software products, and support our ability to deploy high-quality solutions that meet the evolving needs of our customers. WHO YOU ARE In this role, you will: • Design, develop, modify, document, test, and debug software for our system using agile methods. • Write source code for new...

Description SAIC has an immediate opening for a SharePoint Developer to maintain, upgrade, and develop as necessary a SharePoint site incorporating custom back-end JavaScript software. This system is critical to the daily execution of our customer's mission managing a configuration management (CM) library and automated CM workflow processes. The candidate must be comfortable developing custom pages and code and be able to act independently from use case identification through testing and delivery. Roles and Responsibilities: Working with a team responsible for office governance and configuration management activities, the candidate will: Maintain and upgrade an On-Premise SharePoint experience with customized web pages Develop and maintain back-end code for custom web pages using JavaScript/JQuery and CSS Perform software maintenance and minor upgrades to address user concerns and add user features when requirements arise Perform testing and debugging ahead of software...

Description: Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more — we can innovate, invest, inspire and integrate our capabilities to transform the future. At Lockheed Martin Space, we aim to harness the full potential of space to cultivate innovation, reduce costs, and push the boundaries of what technology can achieve. We’re creating future-ready solutions, focusing on resiliency and urgency through our 21st Century Security® vision. We’re erasing boundaries and forming partnerships across industries and around the world. We’re advancing spacecraft and the workforce to fuel the next generation. And we’re reimagining how space can connect us, ensuring security and prosperity. Join us in shaping a new era in space and find a career that's built for you. • Generating and simulating operational level plans to explore the art of the possible,...

Description: At Lockheed Martin Rotary and Mission Systems, Cyber & Intelligence, we are driven by innovation and integrity. We believe that by applying the highest standards of business ethics and forward-thinking, everything is within our reach – and yours as a Lockheed Martin employee. Lockheed Martin values your skills, training, and education. Come and experience your future! These are some of the exciting cleared Engineering roles available: - Software Developer - System Engineer - Software Engineers - Front End/ Back End Developer - Software Architect - Cloud Architect - Data Engineer - Cyber Engineer - Data Architect - Machine Learning Engineer - Integration & Test Engineer - Offensive/ Defensive Cyber & More We offer: - Comprehensive benefits package that includes health, dental, vision, etc. starting Day 1 - Lucrative 401k program - Work/ Life Balance with a generous PTO program By applying to this job, you are expressing interest in this position...

Description SAIC is seeking a skilled and motivated SharePoint Farm Engineer/Administrator to join our MAJESTIC Joint Program Office (JPO) Team in support of an enterprise IT environment. The primary focus of this role is the design, development, implementation, and enhancement of SharePoint environments, workflows, and capabilities to address complex business and operational needs. The successful candidate will be responsible for installing, configuring, and maintaining SharePoint systems, developing custom solutions, integrating SharePoint with other enterprise systems, and ensuring adherence to best practices and security standards. This role requires close collaboration with cross-functional teams, including stakeholders, system administrators, and process owners, to design scalable SharePoint solutions that improve business processes, enable automation, and enhance operational efficiency. The SharePoint Developer/Administrator will work in a fast-paced,...

Description: Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more — we can innovate, invest, inspire and integrate our capabilities to transform the future. At Lockheed Martin Space, we aim to harness the full potential of space to cultivate innovation, reduce costs, and push the boundaries of what technology can achieve. We’re creating future-ready solutions, focusing on resiliency and urgency through our 21st Century Security® vision. We’re erasing boundaries and forming partnerships across industries and around the world. We’re advancing spacecraft and the workforce to fuel the next generation. And we’re reimagining how space can connect us, ensuring security and prosperity. Join us in shaping a new era in space and find a career that's built for you. Our team leverages industry standard open-source software solutions such as GitLab,...

Position Summary Odyssey is recruiting for a Test Engineer to join the team.  The technical expert filling this position will be a trusted advisor and consultant to the government that support the North American Aerospace Defense Command (NORAD) Cheyenne Mountain Complex-Integrated Tactical Warning/Attack Assessment (NCMC-ITW/AA) and CCIC2S Enterprise Networks within the Strategic Warning and Surveillance Systems Acquisition Delta.  As the Test Engineer, you will define executable-level requirements and developing technical solutions that satisfy them; assess existing systems and their existing requirements and designs; identifies system problems and provides solutions to address them; design and oversee the implementation of system upgrades; develop a road-map for the incremental implementation of capabilities to achieve the customer’s near-term and future goals to ensure the enterprise is expandable to meet future requirements and threats.  This position...

Description: The Sensor Fusion team is seeking a Senior Software Engineer to help prototype and integrate applications and algorithms (C++, C#, Python) spanning the domains of artificial intelligence / machine learning (AI/ML), information fusion, and electronic warfare. You'll have the opportunity to develop cutting-edge Combat Identification solutions and integrate them into the world's most advanced fighters, collaborating closely with our customers and across teams to bring these capabilities to life. Basic Qualifications: • Bachelor's degree in a STEM discipline (e.g. Computer Science, Software Engineering, Electrical Engineering, Mathematics, Physics, or a related field) • Experience with large codebases and modern software tools (Git, CI/CD) • Experience with one or more programming languages (ex. C++, C#, Python) • Experience with software development and testing (unit and system) • Professional experience implementing AI/ML algorithms using common machine learning...

Description: Join Lockheed Martin’s digital transformation journey as we accelerate change by responsibly embracing AI and OneLM Mission-Driven Transformation. The Advanced Solutions team within the Data & AI Enablement Org is seeking an AI/ML Full Stack engineer or an accomplished full stack engineer looking to grow into an AI/ML engineer, to support the AI Strategy Acceleration portfolio. Teams within the portfolio focus on standardized agentic development, and ontology generation that enables semantic data discovery, reasoning, and information retrieval. The AI Strategy Acceleration Portfolio provides solutions and capabilities that underpin all AI solutions within the Advanced Solutions Division. In addition to tackling development work the team will conduct experimental work for the exploration of cutting-edge technologies. We are committed to fostering a culture of innovation, and we're looking for an individual who shares our passion for using technology to drive...