385 Results for

Principal Software Engineer Jobs in Elkridge, MD

Jobs

New!

MONTGOMRY VLG, MD1 day ago

$165,000–$185,000 Per Year

With deep expertise in cloud-first architectures, automation, DevSecOps, virtualization, reliability engineering, and large-scale systems integration, we help organizations modernize infrastructure, improve operational efficiency, and support mission-critical environments where performance, security, and resiliency are essential. This role is ideal for a seasoned engineer who enjoys solving complex technical challenges, contributing to system architecture, and partnering closely with Systems Engineering, Development, and Test teams to deliver robust, scalable solutions.

New!

Gaithersburg, MD1 day ago

$140,000–$165,000 Per Year

With deep expertise in cloud-first architectures, automation, DevSecOps, virtualization, reliability engineering, and large-scale systems integration, we help organizations modernize infrastructure, improve operational efficiency, and support mission-critical environments where performance, security, and resiliency are essential. Our teams partner closely with customers to deliver innovative solutions across cloud strategy, cybersecurity, systems integration, data engineering, machine learning, AI, disaster recovery, and enterprise infrastructure initiatives.

New!

Tysons, VA1 day ago

$140,000–$215,000 Per Year

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New!

West McLean, VA1 day ago

$140,000–$215,000 Per Year

With first hand knowledge of problems that arise deploying software with millions of concurrent users worldwide, this paradigm changing tool will enable engineers to quickly, efficiently, and reliably develop and deploy large scale distributed systems autonomously. Information collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal.

New!

Gaithersburg, MD2 days ago

$131,300–$237,350

If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com. April 1, 2026For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

New!

Laurel, MDToday

$105,000–$290,000

In A5C, we develop and deploy advanced planning capabilities and solutions directly into the hands of the warfighter, empowering them to design and execute dominant defenses for maximum performance across multiple simultaneous multiple missions, multiple services, and multiple command echelon planning levels and domains. This is a unique opportunity to dive deep into both software engineering and mission planning while using your skills to design, develop, and test physics-based models for military planning tools associated with Air & Missile Defense (AMD).

New!

Laurel, MDToday

$105,000–$290,000

Evolving air and missile defense planning tools and capabilities, Developing and implementing robust software solutions to complex planning challenges, Responding to feedback from the warfighter and the analyst community, Assessing new AI and Machine Learning tools and capabilities and their applicability to military planning, and. In A5C, we develop and deliver highly capable mission planning capabilities into the hands of the warfighter so they can design defenses that enhance performance across multiple simultaneous air and missile defense missions, multiple services, and multiple command echelon planning levels.

New!

Dundalk, MD1 day ago

$127,800–$142,000

The Technical Sales Manager (TSM) provides building-systems knowledge & development/design expertise in support of sales efforts for Energy Efficiency focused Infrastructure Renewal and Building Upgrade & Improvement projects. Bachelor's degree in Mechanical Engineering and 8-years of project development or sales engineering experience developing facilities-based or building infrastructure projects or equivalent combination of education and relevant experience.

Columbia, MD12 days ago

$200,000–$220,000

Telework: Limited to start; up to 60% after onboardingWe are seeking a Full-Time Senior Software Engineer with deep full-stack development experience supporting secure, enterprise-scale applications within classified environments. This role requires experience developing complete application stacks — from front-end user interface layers to backend data storage systems.

Columbia, MD12 days ago

$180,000–$220,000

We are seeking a senior-level development and operations professional to support enterprise-level cybersecurity systems within a highly classified Maryland-based customer. This role blends advanced development knowledge with operational system oversight in complex enterprise environments.

Columbia, MD12 days ago

$220,000–$230,000

This role develops and enhances processing-intensive analytics systems and extremely large datasets within secure environments. She Recruits is representing a senior-level Software Engineer supporting complex analytics and real-time processing systems.

New!

Washington, DC1 day ago

Remote

$150,000–$200,000 Per Year

Information collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. We are a growing company in the reinsurance industry that is on the lookout for a Senior Software Engineer / Senior Full Stack Engineer with strong Python skills and a reinsurance or financial services background!

Annapolis Junction, MD14 days ago

$133,555–$175,000
Full-time
Employee

7 years relevant experience with Bachelors in related field; 3 years relevant experience with Masters in realted field; 0 years experience with PhD or Juris Doctorate in related field; or High School Diploma or equivalent and 12 years relevant experience. HII, Mission Technologies has a need for an AI/ML Engineer who will be responsible for designing advanced model architectures, developing machine learning pipelines, and optimizing AI systems for operational deployment in government and mission critical environments.

Columbia, MD14 days ago

Full-time
Employee

You will tackle a diverse set of challenges, from developing robust API endpoints and modifying complex open-source systems like Trino, to architecting intricate identity federation solutions, managing large-scale data ingest, and streamlining our deployment automation. Enlighten, honored as a Top Workplace from USA Today, is a leader in big data solution development and deployment, with expertise in cloud-based services, software and systems engineering, cyber capabilities, and data science.

Columbia, MD14 days ago

Full-time
Employee

You will work closely with other talented engineers to create secure, enterprise-grade AI software solutions, including Model Context Protocol (MCP) servers, reusable AI skills, strict safety guardrails, and other AI framework capabilities that meet the complex needs of our clients. Build Model Context Protocol (MCP) servers and a library of reusable "skills" (function calling/tools) that enable AI models to safely interact with our internal databases, microservices, and external APIs.

Columbia, MD14 days ago

Full-time
Employee

Columbia, MD14 days ago

Full-time
Employee

Enlighten, honored as a Top Workplace from USA Today, is a leader in big data solution development and deployment, with expertise in cloud-based services, software and systems engineering, cyber capabilities, and data science. When extending an offer, Enlighten takes a variety of factors into consideration which include, but are not limited to, the role's function, internal equity and a candidate's education or training, work experience, certifications and key skills.

Columbia, MD14 days ago

$72,209–$175,204
Full-time
Employee

System design and software implementation of proof-of-concept prototypes incorporating a variety of engineering disciplines: control theory, software development, signal/video processing, pattern recognition, machine learning, artificial intelligence, high performance computing, applied mathematics, network/web services, and visualization. Senior Software Engineer (Software Engineer 3): 5 years relevant experience with Bachelors in related field; 3 years relevant experience with Masters in related field; 0 years experience with PhD or Juris Doctorate in related field; or High School Diploma or equivalent and 9 years relevant experience.

Annapolis Junction, MD13 days ago

$120,000–$150,000
Full-time
Employee

Mission Technologies' Cyber & Intelligence Team is seeking a motivated and experienced Senior Developer to join a high‑performing team supporting a range of dynamic mission areas, including technology trend analysis, corporate discovery services, and elite defensive cybersecurity operations. Depending on your background, responsibilities may include developing Java‑based GHOSTMACHINE analytics, enriching and summarizing data for downstream use, creatively leveraging diverse datasets to close knowledge gaps, or serving as a technical point of contact for specific cybersecurity missions.

Springfield, VA14 days ago

Full-time
Employee

5 years relevant experience with Bachelors in related field; 3 years relevant experience with Masters in related field; 0 years experience with PhD or Juris Doctorate in related field; or High School Diploma or equivalent and 9 years relevant experience. Our workforce includes skilled tradespeople; artificial intelligence, machine learning (AI/ML) experts; engineers; technologists; scientists; logistics experts; and business administration professionals.

Washington, DC21 days ago

$175,540–$175,540 Per Year
Full-time
Employee

Must have 2 years of experience in applying machine learning and AI techniques, particularly with generative AI and LLMs; · Must have 2 years of experience in with Python-based ML frameworks (TensorFlow, PyTorch, JAX, TGI/vLLM, and NumPy); · Must have 2 years of experience in deploying research prototypes as scalable production systems; · Must have 2 years of experience in working with large datasets, data pipelines, and AI models; and. Alternatively, will accept a Master’s degree or equivalent in Engineering, Computer Science, Data Analytics, Information Systems, or related and 2 years of related.

Annapolis Junction, MD19 days ago

Full-time

You will lead the technical vision for a new capability, define what done looks like, and work closely with an Integrated Feature Team to carry the work across the full lifecycle. This is a strong fit for an engineer who likes solving hard problems, influencing system direction, and building software that has to perform in real operational environments.

Annapolis Junction, MD30+ days ago

Full-time

We also provide customer solutions in the areas of CND, CNE, and CNO by providing our customers with assessments and solutions in Threat Mitigation, Vulnerability Exposure, Penetration Testing, Threat Hunting, and Preventing Advanced Persistent Threat. GliaCell’s Enterprise capabilities include Full-Stack Application Development, Big Data, Cloud Technologies, Analytics, Machine Learning, AI, and DevOps Containerization.

Laurel, MD21 days ago

Full-time

We also provide customer solutions in the areas of CND, CNE, and CNO by providing our customers with assessments and solutions in Threat Mitigation, Vulnerability Exposure, Penetration Testing, Threat Hunting, and Preventing Advanced Persistent Threat. The role emphasizes AI-assisted IDE capabilities, automated code quality workflows, and experimentation with agentic and autonomous systems to support software development tasks.

Annapolis Junction, MD7 days ago

Full-time

Woodlawn, MD30+ days ago

$145,000–$175,000 Per Year

Implementation of Graphical User Interface (GUI) using the presentation tier technologies such as AngularJS, ReactJS, Node JS, Type Script, JavaScript, JSP, HTML, CSS, XML, AJAX, and jQuery, Front end development using modern JavaScript and experience with ES13+ features, such as classes, arrow functions, template literals and modules. Demonstrate a strong understanding of the latest trends in Artificial Intelligence (AI) and showcase the ability to apply AI knowledge to enhance or redesign existing system architectures, identifying opportunities where AI-driven solutions can add value, improve efficiency, or enable new capabilities.

Annapolis Junction, MD14 days ago

$215,000–$250,000 Per Year

There are differentiating factors that can impact a final salary/hourly rate, including, but not limited to, Contract Wage Determination, relevant work experience, skills and competencies that align to the specified role, geographic location, education and certifications as well as Federal Government Contract Labor categoriesRiverstone Enterprise Solutions is an equal-opportunity employer. Develops, maintains, and enhances complex and diverse software systems (e.g., processing-intensive analytics, novel algorithm development, manipulation of extremely large data sets and real-time systems).

North Bethesda, MD30+ days ago

You will bring deep expertise and technical leadership to help us build fast, reliable, and intuitive solutions that empower our partners – enabling them to more easily manage jobs, streamline operations, and maximize their growth potential within our manufacturing marketplace. Xometry's digital marketplace gives manufacturers the critical resources they need to grow their business while also making it easy for buyers at Fortune 1000 companies to tap into global manufacturing capacity.

Mc Lean, VA30+ days ago

Remote

$160,000–$187,000 Per Year

A Principal Software Engineer - Front End/ Back End exhibits influential skills to shape future work streams within the current customer base, while maintaining a strategic vision to successfully pursue new business opportunities. In support of various state and city equal pay transparency laws, Ad Hoc job descriptions feature the starting range we reasonably expect to pay to candidates who would join our team with little to no need for training on the responsibilities we've outlined above.

Falls Church, VA30+ days ago

We are looking for an experienced Principal Software Engineer who will be responsible for developing and maintaining our flagship product assets. • Secure our software by addressing any vulnerabilities and by writing high-performing, scalable, and secure software to meet customer demands.

Annapolis Junction, Maryland26 days ago

$135,000–$216,000 Per Year

Provides specific input to the software components of system design to include hardware/software trade-offs, software reuse, use of Commercial Off-the-Shelf (COTS)/Government Off-the-Shelf (GOTS) in place of new development, and requirements analysis and synthesis from system level to individual software components. Peraton offers enhanced benefits to employees working on our critical National Security programs, which include heavily subsidized employee benefits coverage for you and your dependents, 25 days of PTO accrued annually up to a generous PTO cap and eligible to participate in an attractive bonus plan.

Washington, DC30+ days ago

$124,600–$161,352 Per Hour

Our values of ‘Do the Right Thing, Excel Together and Put Customers First’ are at the heart of what matters most to us, and our Core Capabilities, ‘Building Trust, Accountability, Effective Communication, Customer Focus, and Proactive Safety & Security’ are what every employee needs to know and do to be most impactful at Amtrak. Amtrak may offer additional incentive and pay programs to recognize and reward our employees, including a short-term incentive bonus based upon factors such as individual and company performance that is commensurate with the level of the position and/or long-term incentive plan compensation.

New!

Laurel, MD6 days ago

Full-time

We also provide customer solutions in the areas of CND, CNE, and CNO by providing our customers with assessments and solutions in Threat Mitigation, Vulnerability Exposure, Penetration Testing, Threat Hunting, and Preventing Advanced Persistent Threat. You will also contribute to the MI team as a software engineer and analytic developer where you will design, develop, and integrate solutions involving the analysis of large data sets to establish mission cognizance and deliver mission-centric insights.

Fort Meade, MD30+ days ago

Experience with containers and container orchestration (e.g., Docker/Kubernetes/OpenShift and GitLab CI) is highly desired, including experience with the following: - microservices and microservice orchestration; - understanding of CI/CD pipelines; -integration of automated testing tools like SonarQube; - implementing automated deployments/failure rollbacks; - deployment to Kubernetes Agile. The Software Engineer develops, maintains, and enhances complex and diverse software systems (e.g., processing-intensive analytics, novel algorithm development, manipulation of extremely large data sets, real-time systems, and business management information systems) based upon documented requirements.

New!

Fort Meade, MD1 day ago

The Software Engineer develops, maintains, and enhances complex and diverse software systems (e.g., processing-intensive analytics, novel algorithm development, manipulation of extremely large data sets, real-time systems, and business management information systems) based upon documented requirements. Provides specific input to the software components of system design to include hardware/software trade-offs, software reuse, use of Commercial Off-the-shelf (COTS)/Government Off-the-shelf (GOTS) in place of new development, and requirements analysis and synthesis from system level to individual software components.

New!

Annapolis, MDToday

Experience or familiarity with the following tech stack architecture: NiFi, Testing frameworks (JEST), Grafana, InfluxDb, Elasticsearch, Redis, MySQL, Apache, Superset, RabbitMQ/Kafka/Message Fabrics, Ansible/Salt, Terraform, Web-Sockets, and Neo4j . In this role, you will support complex, multifaceted software systems-such as data-intensive analytics platforms, advanced algorithmic solutions, large-scale data processing environments, real-time applications, and business information systems-based on defined and documented requirements.

Annapolis Junction, MD22 days ago

Full-time

Annapolis Junction, MD11 days ago

Full-time

Or, a Master’s degree in Math, Computer Engineering, Computer Science, or related discipline from an accredited college or university, plus 5 years of experience as an HSE in programs and contracts of similar scope, type, and complexity. Bachelor’s degree in Math, Computer Engineering, Computer Science, or related discipline from an accredited college or university & 7 years of experience as an HSE in programs and contracts of similar scope, type, and complexity.

Annapolis Junction, MD22 days ago

Full-time

Critical: Java threading, SpringBoot, JavaScript, JMS, MongoDB, AWS, Amazon RDS, REST, Docker, Kubernetes, ElasticSearch, Cockroach DB or other RDBMS at similar scale, COOP, Large scale distributed systems with high availability. We also provide customer solutions in the areas of CND, CNE, and CNO by providing our customers with assessments and solutions in Threat Mitigation, Vulnerability Exposure, Penetration Testing, Threat Hunting, and Preventing Advanced Persistent Threat.

Annapolis Junction, MD22 days ago

Full-time

Laurel, MD21 days ago

Full-time

We also provide customer solutions in the areas of CND, CNE, and CNO by providing our customers with assessments and solutions in Threat Mitigation, Vulnerability Exposure, Penetration Testing, Threat Hunting, and Preventing Advanced Persistent Threat. You will be responsible for designing and delivering custom applications, providing data visualization, workflow automation, and mission cognizance for mission critical activities.

Annapolis Junction, MD30+ days ago

Full-time

The engineer will work closely with data scientists and end users to develop analytic tools that support discovery and tradecraft around critical global challenges and operationalize data science within customer environments. Combining operational expertise with an intimate understanding of today’s greatest challenges, we bring our customers the solutions required for success in a complex and multidimensional world.

Annapolis, MD30+ days ago

You will operate at the intersection of hands-on engineering excellence and strategic technical leadership — contributing directly to complex features while shaping how the entire engineering organization builds, scales, and operates its software. + Cloud and Infrastructure: Deep hands-on experience with AWS or Azure including serverless compute, managed messaging (SQS/SNS/Service Bus), managed databases, and cost optimization.

Annapolis Junction, MD21 days ago

Full-time

We also provide customer solutions in the areas of CND, CNE, and CNO by providing our customers with assessments and solutions in Threat Mitigation, Vulnerability Exposure, Penetration Testing, Threat Hunting, and Preventing Advanced Persistent Threat. You will be expected to provide guidance and vision as you work with mission stakeholders and software engineers to specify, develop, integrate, and test new workflows aided by AI/ML technologies.

Annapolis Junction, MD30+ days ago

$215,000–$250,000 Per Year

The projected compensation range for this position is $215,000.00-$250,000.00.There are differentiating factors that can impact a final salary/hourly rate, including, but not limited to, Contract Wage Determination, relevant work experience, skills and competencies that align to the specified role, geographic location, education and certifications as well as Federal Government Contract Labor categories. • Provides specific input to the software components of system design to include hardware/software trade-offs, software reuse, use of Commercial Off-the-shelf (COTS)/Government Off-the-shelf (GOTS) in place of new development, and requirements analysis and synthesis from system level to individual software components.

Arlington, VA30+ days ago

Candidates will demonstrate practical experience designing, developing, and deploying tools intersecting command and control, persistence, and networking. Zetier is seeking Principal CNO Software Engineers to develop operationally critical cyber capabilities.

New!

Laurel, MD2 days ago

Nineteen (19) years of demonstrated experience in Software Engineering with a Bachelor's degree in Engineering, Computer Science, Mathematics, or appropriate field from an accredited college or university OR Twenty (20) years of experience in Software Engineering with a High School Diploma or GED OR Eighteen (17) years of experience in Software Engineering with a Master's degree in Engineering, Computer Science, Mathematics, or appropriate field from an accredited college or university OR Fourteen (14) years of experience in Software Engineering with a PhD in Engineering, Computer Science, Mathematics, or appropriate field from an accredited college or university. As a Principal Software/Data Engineer on our team, you will develop, maintain, and enhance complex and diverse software systems based upon documented requirements; review and test software components for adherence to the design requirements; and document test results.

Annapolis Junction, MD30+ days ago

In the past year alone, we have built tools that: Ingest, process, and analyze large volumes of information for a critical Presidential-level effort, Provide direct support to forces protecting Americans directly in harms way, Organize, process, and visualize a source of information for critical intelligence, including preventing loss-of-life, Identify and track critical assets using geospatial tools and analytics, and. These include: TypeScript and JavaScript, React, Angular, Material UI, Bootstrap, Storybook, Java, Spring Boot, Elasticsearch, MongoDB, MySQL, npm, Webpack, Maven, Jest, JUnit, and.

Windsor Mill, MD30+ days ago

Columbia, MD30+ days ago

$190,000–$215,000 Per Year

At least 12 years' experience as a Signals Software Engineer or equivalent on a project with a focus on Radio Frequency (RF) to include experience with Fourier transforms, filtering, communications theory, digital modulation, error control coding, signals analysis tools (e.g. There are differentiating factors that can impact a final salary/hourly rate, including, but not limited to, Contract Wage Determination, relevant work experience, skills and competencies that align to the specified role, geographic location, education and certifications as well as Federal Government Contract Labor categories.

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Principal Software Engineer Jobs in Elkridge, MD

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