Software Developer Jobs in Maryland, United States

Systems Software Development Team at Endictus Corp builds mission‑critical software for national security programs. The role designs, develops, tests, and optimizes systems‑level software supporting computer network operations, cyber and cloud environments, and enterprise platforms.

GEICO’s Technology Solutions team is seeking high-performing tech college graduates for the Technology Development Program (TDP) Software Engineer Development Track. You will join a two-year cohort to help drive insurance business transformation by designing, building, and troubleshooting scalable distributed systems and customer-facing applications.

PLEX Solutions, a part of Markon, builds cutting‑edge CNO tools for intelligence missions. Software Developers design and code components in C/C++ and Python, test and debug, and research vulnerabilities while collaborating with a large team.

Software Development team at Gormat builds cutting-edge CNO tools for cyber operations. Designs and codes software components in C/C++ and Python, tests, debugs, and prototypes solutions while researching vulnerabilities.

Software Developer at Booz Allen Hamilton-TEAMS business. Full stack developer role in Fort Meade, MD. Resolve end-to-end solutions in fast agile environment.

As a Software Sustainment Developer at Booz Allen, you will design, build, and maintain applications while troubleshooting operational issues and upgrading systems to meet security requirements. You will advise clients on modernizing legacy enterprise systems and work with a team to continuously enhance applications using programming and scripting languages.

Leidos is hiring a Software Developer focusing on System Management for the FAA Terminal Flight Data Manager (TFDM) program, a NextGen surface management solution that modernizes air traffic control operations across the National Airspace System. Day-to-day, you will automate and manage Linux-based infrastructure using Ansible, Python, and container technologies, handle network and VM lifecycle tasks, and support multi-environment deployments for a system being rolled out to 89 airports.

Data Systems Analysts, Inc. (DSA) seeks a Software Developer for its Organizational Messaging Service team, building and maintaining mission‑critical C2 messaging software. The role develops new features, writes test‑driven code, and collaborates in daily stand‑ups and peer reviews.

Peraton is seeking a Software Developer to support the FAA’s Business, National Airspace, and Technical Computing Services (BNATCS) contract, advancing the safety, efficiency, and modernization of the National Airspace System (NAS). In this role, you will design, build, and enhance cloud-enabled applications that support aviation operations and modernization initiatives, collaborating with engineers, architects, cybersecurity professionals, and program stakeholders to deliver secure, scalable so

Software Developer at CACI International building and maintaining complex, data‑intensive applications for federal missions. Day‑to‑day duties include designing, coding, and debugging software, integrating new features, and leading small teams on projects.

The Leidos Spatial Solutions Division seeks an experienced Software Developer to support the NGA's Geospatial Intelligence mission by ensuring three-dimensional accuracy of global data. The role involves coding, integrating, and debugging software artifacts using Python, Java Spring, and other frameworks within Agile environments.

Peraton's Linthicum, MD team works on cyber investigations, digital forensics, and threat analysis for DoD customers. The Software Developer designs, codes, tests, and debugs .NET and web applications, integrates APIs, and supports CI/CD pipelines in Azure cloud environments.

Software Developer on Booz Allen Hamilton's TEAMS business, building end‑to‑end software solutions that integrate with hardware. The role designs, develops, and secures full‑stack applications using Go, Python, Node.js or C#, and works with relational and NoSQL databases while embedding CI/CD and automated testing.

Digital Transformation – System and Application Development team builds and modernizes software systems for mission-critical applications. The Software Developer I codes components, creates test plans, executes tests, and reports results while collaborating with senior developers.

Flight Software Systems Branch at NASA Goddard supports the Early Career Initiative Lunar Precision Clock Project, building embedded flight software for lunar timekeeping. The developer designs, codes, tests, and integrates C/C++/Python applications within the core Flight System, collaborating with hardware and algorithm engineers.

Software Developer at Intelliforce-IT Solutions Group builds system management infrastructure for HPC platforms, automating Linux tooling, secret management, IAM, containerization, CI/CD, and orchestration. Works on HPC environments in Annapolis Junction, MD, onsite.

Leidos FAA Terminal Flight Data Manager (TFDM) program modernizes air traffic management by delivering NextGen surface management capabilities. The Software Developer builds, integrates, and deploys TFDM solutions, collaborates with FAA customers on site deployments, and troubleshoots complex system issues.

Leidos is hiring a Software Developer to support the FAA Terminal Flight Data Manager (TFDM) program, a NextGen surface management solution for air traffic control operations. The role focuses on system management, automation, and infrastructure to ensure seamless integration and modernization of air traffic management systems.

Belay Technologies is seeking a versatile Software Developer to design, develop, automate, and maintain scalable infrastructure and software solutions for DoD and commercial clients. Day-to-day work spans the software and infrastructure stack: writing automation scripts, supporting CI/CD pipelines, administering and troubleshooting Linux systems, deploying and managing Kubernetes environments, developing Ansible playbooks, and automating infrastructure provisioning and lifecycle management.

Sigma Defense seeks a Software Developer to support on‑site development for PMA290 SSA in Patuxent River, MD. Candidate will build JAVA applications for TOMS and ABA, deploy on RHEL, create containerized microservices, script solutions, and implement Agile practices. Responsibilities include designing PEO C4I software/hardware baselines, configuring VMware hypervisors, developing test plans, hardening systems per DISA STIGs/SRGs/RMF, and documenting engineering designs.