Software Engineer Jobs in Maryland, United States

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

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 Software Test Engineer, Associate role supports HII's Warfare Systems (WS) within the Mission Technologies division, focusing on the Minotaur Mission Processor—a government-owned mission management software suite that fuses sensor and data sources into a common operating picture. Day-to-day, the engineer plans and executes tests across the software development life cycle, writes test cases and automation scripts, manages test data, performs regression and usability testing, analyzes results,

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.

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.

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.

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.

Mission Technologies Division at Huntington Ingalls Industries delivers advanced defense solutions worldwide. As a Software Engineer 2 on the reverse engineering team, you will lead a group to dissect existing products, encode findings into the codebase, and develop algorithms that automate complex reverse‑engineering tasks.

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.

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.

Solerity is seeking a Mid-Level Test Engineer to ensure the quality, reliability, and performance of the AdmitIT product for U.S. Federal Government and Intel Community clients. Day-to-day work includes designing and executing test plans, identifying and tracking defects, collaborating with development teams, and balancing manual and automated testing across the software development lifecycle.

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.

Software Engineer at RGi develops secure, scalable microservices and enterprise applications for defense and intelligence clients. Leads full-stack development, mentors engineers, and implements DevSecOps pipelines in classified cloud environments.

Mission Technologies' Cyber & Intelligence Team builds advanced cybersecurity and analytics solutions for national defense. As a Software Engineer you will design prototypes, develop Java and Python analytics, and automate data and metadata analysis in a fast‑paced DevOps environment.

Secure the Enterprise initiative at Quevera modernizes system security evaluation and authorization through automation and analytics. The Software Engineer develops Pig and PySpark analytics, supports data ingestion, and troubleshoots processing issues to deliver reliable data for mission‑critical operations.

The Software Engineer leads development, deployment, and evolution of mission‑critical satellite communication systems, analyzing user requirements, designing and implementing C++ solutions, optimizing algorithms, ensuring quality through testing, and collaborating across teams.

Software Engineering team at King Global Enterprise Solutions develops advanced digital signal processing (DSP) algorithms in C++ for real-time military and aerospace applications. The role leads design, implementation, and optimization of DSP software, collaborates with hardware engineers for system integration, and mentors junior engineers.

Peterson Technologies’ Software Engineering team builds mission‑critical data, network security, and analytics solutions that protect customers from information theft. The role focuses on designing, coding, and testing high‑performance systems for large data sets and real‑time processing, while collaborating with cross‑functional teams on architecture and trade‑offs.

Software Engineer at Peterson Technologies works on mission‑critical data and security solutions. The role designs, codes, and debugs high‑performance analytics and real‑time systems, integrating COTS components and ensuring compliance with design requirements.