Software Engineer Jobs in Maryland, United States

Global Security (GS) group at HII Mission Technologies develops space combat power and multi-domain simulation software to support force structure planning, synthetic training, and space systems research. The Software Engineer designs, develops, tests, and debugs space simulation applications while leading junior engineers and coordinating with government leadership and customers.

Mission Planning Systems team at Northrop Grumman develops advanced software for mission planning and execution. The role designs, develops, tests, and maintains C#/.NET applications, CI/CD pipelines, and automated test frameworks while collaborating in a cross‑functional scrum.

The AI & Digital Engineering Engineer joins X-energy's AI Solutions Tiger Team to accelerate Xe-100 nuclear reactor development by designing and building production-ready, AI-native applications, agentic workflows, and supporting platform infrastructure. Day-to-day work applies modern large language models, agentic AI, and cloud-native engineering across one of four specialization tracks (Front-End & Full-Stack, Agentic AI, Data & Systems Integration, or Platform Infrastructure & DevOps), partne

The AI & Digital Engineering Software Engineer III supports X-energy's AI Solutions Tiger Team, accelerating Xe-100 nuclear reactor development by designing and building production-ready, AI-native applications, agentic workflows, and platform infrastructure. Day-to-day work applies modern large language models, agentic AI, and cloud-native engineering across four specialization tracks (Front-End & Full-Stack, Agentic AI, Data & Systems Integration, Platform Infrastructure & DevOps) to move X-en

Warfare Systems within HII Mission Technologies builds critical national security software like the Minotaur Mission Processor. The Software Test Engineer creates and executes manual and automated test plans, analyzes results, and supports system integration events, including occasional flight tests.

All-Domain Operations (ADO) within HII Mission Technologies builds integrated ISR and data‑fusion capabilities for defense. The Software Quality Engineer leads automation framework guidance, designs performance‑testing infrastructure, generates metrics, and ensures quality throughout the product lifecycle.

Warfare Systems within HII's Mission Technologies division builds the Minotaur Mission Management System, a cutting‑edge suite that ingests and processes sensor data for manned and unmanned surveillance aircraft. The Senior Software Engineer designs, implements, integrates, and tests new capabilities across the software lifecycle, collaborates with customers to shape backlogs, and mentors junior engineers while leading a small development team.

Software Engineer (Software Management) at Themis Insight builds and maintains complex analytics and real‑time systems for government clients. The role designs, codes, and tests software components, integrates COTS/GOTS solutions, and leads small teams on projects requiring TS/SCI clearance.

ADC Hardware & Software Team builds cutting‑edge embedded solutions for AWS connectivity, developing high‑assurance 400G+ hardware and software. The Senior Software Development Engineer leads architecture, writes Rust embedded code, creates low‑level ARM and RISC‑V drivers, and mentors peers while ensuring security compliance.

GEICO’s Software Engineering team builds resilient SRE and incident management systems that protect millions of customers. The Staff Engineer leads technical strategy, mentors peers, and drives cross‑team collaboration on cloud, container, and monitoring solutions.

Raft’s Field Engineering team at Aberdeen Proving Ground builds and deploys autonomous data fusion and AI/ML solutions for the U.S. Army. The role leads on‑site technical integration of Raft Data Platform, AI Mission System, and Application Platform, writing production code, troubleshooting Kubernetes in SCIFs, and briefing program offices.

Visionist Reverse Engineering team builds specialized tools to support intelligence analysts and enhance mission capabilities. The Senior Software Engineer designs, develops, and maintains reverse‑engineering software, prototypes solutions, and collaborates with analysts to address cyber infrastructure challenges.

Visionist's Reverse Engineering team builds specialized tools to enhance mission-critical analysis and operational workflows. The Senior Software Engineer develops Python applications, reverse engineers network traffic and web applications, and collaborates with customers to gather requirements and integrate new technologies.

Peraton’s Cloud Engineering team modernizes mission‑critical cyber intelligence systems on AWS. The engineer designs, develops, and maintains cloud‑native applications, IaC, CI/CD pipelines, and containerized services, ensuring secure, highly available solutions for national security missions. Based in Annapolis Junction, MD, the role is on‑site with a focus on rapid, agile delivery and operational sustainment.

Bespoke Technologies seeks a Senior Software Engineer/Systems Engineer to lead the productization of its security suite for the DoD community. The role involves abstracting client-specific dependencies, developing authorization workflows, and managing key management services across Linux and Windows platforms.

AI Engineering and Application Development business unit at T. Rowe Price builds modern technology solutions to scale the firm’s innovation agenda, delivering secure, reliable platforms for business‑critical applications and AI‑powered services. The Senior Software Engineer on the Developer Services team designs, builds, and operates cloud infrastructure and software tools, mentors engineers, and leads complex initiatives to ensure scalability, resiliency, and governance.

Visionist Software Engineering team builds AI-enabled mission-critical tools for intelligence analysts, delivering rapid, secure solutions to protect the nation’s cyber infrastructure. The Senior Applied AI Engineer designs, develops, and maintains production AI software using Python, LLM-powered workflows, RAG pipelines, and backend services, while translating user requests into deterministic analytical workflows.

Frontend Platform Engineering team at OneMain Financial builds and evolves the shared frontend architecture and platform for all digital customer experiences. The Staff Engineer leads technical direction, designs scalable web and mobile solutions, mentors engineers, and drives observability and analytics instrumentation across the ecosystem.

Platform Engineering at GEICO builds and modernizes core platform services such as the File Exchange Platform and Unified Platform Experience. The Senior Manager leads multiple engineering teams, defines architecture standards, drives adoption of IaC and cloud-native practices, and oversees delivery, budgeting, and people development.

Senior Software Engineer on GEICO’s Infrastructure Engineering (Linux) OS Team, building high‑performance, secure, zero‑downtime containerized platforms. The role collaborates with cross‑functional teams to design, deploy, and secure Docker/Kubernetes workloads, enforce best practices, and integrate runtimes into the broader tech stack.