Software Design Engineer Jobs in Mclean, VA

Elastic

Washington DC, DC

By taking advantage of all structured and unstructured data — securing and protecting private information more effectively — Elastic’s complete, cloud-based solutions for search, security, and observability help organizations deliver on the promise of AI. • You’ll help us create the future of search within Elasticsearch - building a scalable search tier for our Serverless platform and writing search functionality in ES|QL, our new piped query language as two examples.

Johns Hopkins Applied Physics Laboratory (APL)

$85000 - $245000

Laurel, MD

Perform software engineering including requirements development, network architecture design, object-oriented design, agile software development, laboratory system integration and testing, and field testing. APL provides eligible staff with a comprehensive benefits package including retirement plans, paid time off, medical, dental, vision, life insurance, short-term disability, long-term disability, flexible spending accounts, education assistance, and training and development.

iCapital

$160000 - $200000

Washington DC, DC

Employees also receive a comprehensive benefits package that includes an employer matched retirement plan, generously subsidized healthcare with 100% employer paid dental, vision, telemedicine, and virtual mental health counseling, parental leave, and unlimited paid time off (PTO). More than checking the boxes on specific technologies, we are looking for driven team members with technical depth and a desire to deliver end products for our clients.

Johns Hopkins Applied Physics Laboratory (APL)

$105000 - $290000

Laurel, MD

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.

Included Health

$149450 - $211100

Washington DC, DC

Starting base salary for you will depend on several job-related factors, unique to each candidate, which may include education; training; skills; years and depth of experience; certifications and licensure; our needs; internal peer equity; organizational considerations; and understanding of geographic and market data. As a Senior Software Engineer, youll design and develop the systems, services, and tools that power our platform and products, enabling us to deliver better care experiences and outcomes at scale.

Elastic

Washington DC, DC

By taking advantage of all structured and unstructured data — securing and protecting private information more effectively — Elastic’s complete, cloud-based solutions for search, security, and observability help organizations deliver on the promise of AI. For example, Debugging Azure Networking for Elastic Cloud Serverless is part of our efforts, and we want your experience to contribute to a truly exceptional customer experience.

Elastic

Washington DC, DC

By taking advantage of all structured and unstructured data — securing and protecting private information more effectively — Elastic’s complete, cloud-based solutions for search, security, and observability help organizations deliver on the promise of AI. • Familiarity with Linux system-level performance measurement and associated tooling (for example: how to measure and compare CPU, memory, and disk I/O performance between cloud provider instance types).

Microsoft

$100600 - $199000

Reston, VA

Collaboration skills will be required to work closely with other engineering teams to ensure services and systems are highly stable, meet performance Service level agreements (SLA), and meet the expectations of internal and external customers and users. The Microsoft Security organization accelerates Microsoft’s mission and bold ambitions to ensure that our company and industry is securing digital technology platforms, devices, and clouds in our customers’ heterogeneous environments, as well as ensuring the security of our own internal estate.

Yugabyte

Washington DC, DC

The team works on cutting-edge technologies in cloud computing, container orchestration, and distributed systems that make database management more accessible and efficient while ensuring scalability, security, and reliability. Due to the Proclamation, “Restriction on Entry of Certain Nonimmigrant Workers”, which went into effect on September 21, 2025, at this time we are no longer able to sponsor new H-1B visa petitions filed after September 21, 2025 for new hires.

Samsara

Washington DC, DC

You believe customers are more than a number: Samsara engineers enjoy a rare closeness to the end user and you will have the opportunity to participate in customer interviews, collaborate with customer success and product managers, and use metrics to ensure our work is translating into better customer outcomes. • You want to impact the industries that run our world: The software, firmware, and hardware you build will result in real-world impact—helping to keep the lights on, get food into grocery stores, and most importantly, ensure workers return home safely.

Samsara

Washington DC, DC

Samsara’s In-Vehicle Experience team builds the software that powers how drivers interact with their vehicles, from real-time safety alerts and AI-driven insights to intuitive in-cab workflows and user interfaces, creating a seamless, engaging, and safer driving experience. • You believe customers are more than a number: Samsara engineers enjoy a rare closeness to the end user and you will have the opportunity to participate in customer interviews, collaborate with customer success and product managers, and use metrics to ensure our work is translating into better customer outcomes.

Jobot

$140000 - $215000

West McLean, VA

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.

Jobot

$120000 - $150000

Arlington, VA

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. If you have a solid grounding in software engineering, continuous delivery, and computer science, and are looking for a career opportunity to grow and leverage those skills to the fullest while working on cutting edge technologies – Here is the place to be!

Sarnova

Washington DC, DC

This role focuses on designing, building, and supporting modern, scalable software solutions using C#, NET Core, and SQL Server. The position is well suited for an engineer who thrives in a collaborative Agile environment, is interested in modern architectural approaches, and enjoys developing solutions that have a direct impact on the business.

Johns Hopkins Applied Physics Laboratory (APL)

$100000 - $245000

Laurel, MD

We expect our engineers to have versatile skills and the motivation to work on all aspects of a project, including concept development, algorithm design, software implementation, and testing. APL provides eligible staff with a comprehensive benefits package including retirement plans, paid time off, medical, dental, vision, life insurance, short-term disability, long-term disability, flexible spending accounts, education assistance, and training and development.

Jobot

$100000 - $130000

Washington, DC

We are seeking a Mechanical Engineer with Mission Critical Data Center Project experience performing design, coordination, and implementation of mechanical systems for high-performance, technically complex facilities such as Data Centers, Laboratories, Clean Rooms, and Critical Infrastructure environments. 10+ years of experience in a MEP or integrated design firm working on commercial/public projects, including the design of HVAC, plumbing and fire protection building systems on complex projects.

Johns Hopkins Applied Physics Laboratory (APL)

$100000 - $245000

Laurel, MD

Experience with (1) Static Analysis tools such as Coverity and Klockwork, (2) Dynamic Analysis tools such as Valgrind, libFuzzer, and Java Pathfinder, (3) Symbolic Execution Engines such as KLEE and angr, (4) Model Checkers such as TLA+ and SPIN, (5) SMT Solvers such as Z3, CVC5 and MathSAT (6) other Automated Theorem Provers such as ACL-2 and GnatProve, (7) Interactive Theorem Provers such as Lean and Rocq, and any other formal methods tools. Experience with formal methods tools and techniques, such as language safety properties, symbolic execution, abstract interpretation, model checking, automated and interactive theorem proving, programming language analysis and design, type theory, static source code analysis, and formal logic.

Unity Software

Washington DC, DC

While specific benefits vary, here are some of the ways we strive to take care of our eligible team members globally: Comprehensive health, life, and disability insurance | Commute subsidy | Employee stock ownership | Competitive retirement/pension plans | Generous vacation and personal days | Support for new parents through leave and family-care programs | Office food snacks | Mental Health and Wellbeing programs and support | Employee Resource Groups | Global Employee Assistance Program | Training and development programs | Volunteering and donation matching program. As a key member of the team, your role will include supporting on designing and developing highly responsive, collaborative web interfaces, shaping real-time drawing and media review features, and ensuring performance, reliability, and scalability across the app.

Lockheed Martin

$150800 - $265880

Washington Navy Yard, DC

Pay Rate: The annual base salary range for this position in California, Massachusetts, and New York (excluding most major metropolitan areas), Colorado, Hawaii, Illinois, Maryland, Minnesota, New Jersey, Vermont, Washington or Washington DC is $150,800 - $265,880. Lockheed Martin considers factors such as (but not limited to) scope and responsibilities of the position, candidate‘s work experience, education/ training, key skills as well as market and business considerations when extending an offer.

Lockheed Martin

$128200 - $225975

Hanover, MD

Pay Rate: The annual base salary range for this position in California, Massachusetts, and New York (excluding most major metropolitan areas), Colorado, Hawaii, Illinois, Maryland, Minnesota, New Jersey, Vermont, Washington or Washington DC is $128,200 - $225,975. • Design, develop and modify software systems, using scientific analysis and mathematical models to predict and measure outcome and consequences of design.

System One

Merrifield, VA

Experience with Test processes, open-source test frameworks, test design strategies, writing test cases, and automating tests in Java with frameworks like JUnit/TestNG, Selenium, JMeter and Appium. Set up, maintain, and perform test automation frameworks on multiple application platforms, such as Mobile, Desktop, and Web, and building test scenarios and acceptance tests.

Notarize

$120000 - $180000

Washington DC, DC

This role focuses on solving complex, high-impact quality challenges, shaping testing architecture and automation strategy, and partnering cross-functionally to deliver high-confidence releases that support mission-critical digital transactions. Developed by the same market leaders and experts who brought notarization online with Notarize℠, Proof offers trust in a digital world by verifying identities and securing transactions to protect businesses and their customers.

Levi, Ray & Shoup

$35 - $60

Washington DC, DC

Proven experience in developing Applications and Websites using, HTML, CSS, JavaScript libraries, Java/Open JDK v11 and up, C#. Within the range, individual pay is determined by work location and additional factors, including job-related skills, experience, and relevant education or training.

Lockheed Martin

$150800 - $265880

Annapolis Junction, MD

Pay Rate: The annual base salary range for this position in California, Massachusetts, and New York (excluding most major metropolitan areas), Colorado, Hawaii, Illinois, Maryland, Minnesota, New Jersey, Vermont, Washington or Washington DC is $150,800 - $265,880. This senior role fosters collaboration with other senior engineers for the development of advanced data analytics solutions and agile development projects in support of a high-visibility mission.

Whitman, Requardt & Associates, LLP

Washington, DC

Demonstrated leadership in leading large-scale projects as well as project development ranging from planning, alternatives analysis, environmental process, permitting, final design, construction, safety certification and commissioning facilities. We are looking for a detail-oriented person to review client operations and recommend vehicle maintenance equipment and equipment layouts to maximize operational processes for bus and rail operations.

Lockheed Martin

$128200 - $225975

Fort Meade, MD

Pay Rate: The annual base salary range for this position in California, Massachusetts, and New York (excluding most major metropolitan areas), Colorado, Hawaii, Illinois, Maryland, Minnesota, New Jersey, Vermont, Washington or Washington DC is $128,200 - $225,975. The following are the primary functions of the position: • Provides concise explanation of developed models to allow other team members to understand/utilize models or algorithms for processing signals of interest.

Lockheed Martin

$150800 - $265880

Annapolis Junction, MD

Pay Rate: The annual base salary range for this position in California, Massachusetts, and New York (excluding most major metropolitan areas), Colorado, Hawaii, Illinois, Maryland, Minnesota, New Jersey, Vermont, Washington or Washington DC is $150,800 - $265,880. The services enable the Data Transformation, Malware Analysis, and Cyber Threat Intelligence processing and sharing capabilities for the customer, fulfilling mission objectives and offering actionable information to detect and mitigate cyber threats.

Amazon Data Services, Inc.

Alexandria, VA

AWS Data Centers have multiple components such as generators, uninterruptable power sources, diesel generators, electrical switchgear, power distribution units, variable frequency drives, automatic/static transfer switches, chillers [air-cooled and water-cooled], pumps, cooling towers, heat exchangers, CRAHs, air economizers, etc. - Frequently visit (locally) assigned in-operation data centers to troubleshoot, meet customers, supervise vendor’s work to ensure compliance with the scope, design, SOO and applicable local codes.

Lockheed Martin

$86100 - $151800

Hanover, MD

Pay Rate: The annual base salary range for this position in California, Massachusetts, and New York (excluding most major metropolitan areas), Colorado, Hawaii, Illinois, Maryland, Minnesota, New Jersey, Vermont, Washington or Washington DC is $86,100 - $151,800. In support of our customer, members of the team are responsible for providing full lifecycle support including analysis, design, development, integration, testing, procurement, deployment, security, training and sustainment for collection and antenna systems.

SynergisticIT

$95000 - $154000

Baltimore, MD

Since 2010, SynergisticIT has helped candidates return to the workforce and land full-time jobs at major employers—companies like Google, Apple, PayPal, Visa, Western Union, Wells Fargo, Client, Client, Banking, Walmart Labs, Client, and more—often with offers between $90,000 and $154,000 depending on role and expertise. SynergisticIT commonly supports hiring pipelines for roles such as junior software programmer, Java full stack engineer, Python/Java developer, DevOps/cloud engineer, plus data-track roles like data analyst, BI analyst, data engineer, data scientist, and ML/AI engineer.

Amazon Data Services, Inc.

Herndon, VA

We pioneered cloud computing and never stopped innovating — that’s why customers from the most successful startups to Global 500 companies trust our robust suite of products and services to power their businesses. We support all AWS data centers and all of the servers, storage, networking, power, and cooling equipment that ensure our customers have continual access to the innovation they rely on.

Amazon Data Services, Inc.

Herndon, VA

We pioneered cloud computing and never stopped innovating — that’s why customers from the most successful startups to Global 500 companies trust our robust suite of products and services to power their businesses. We support all AWS data centers and all of the servers, storage, networking, power, and cooling equipment that ensure our customers have continual access to the innovation they rely on.

Integrative Staffing Group, LLC

Herndon, VA

RUST Software DeveloperHerndon, VADirect PlacementPaid relocation availableUp to $230,000 annuallyPrimary PurposeThe company's Integrated Mission Systems is seeking an experienced Software Engineer with a strong background in the RUST Programming Language and proven experience developing systems with RUST to guide the next generation of mission-critical systems. Qualifications:Bachelor’s degree in computer engineering, Electrical Engineering, Computer Science or related field and a minimum of 12 years of prior relevant experience.

Aroha Technologies

Washington, DC

This involves building a data platform that supports data flows/pipelines, Extract, Transform and Load (ETL) / Extract, Load and Transform (ELT) and orchestration, data lake/data warehousing, geospatial analysis and services, big data query and analysis. Design and architect robust Azure Government cloud infrastructures, including virtual networks, subnets, firewall rules, and VM configurations, to meet project requirements for scalability, high availability, and security.

Jobot

$125000 - $145000

Washington, DC

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. As a Senior Full Stack Software Developer / Senior Fullstack Software Engineer on our team, we are looking for: Professional experience building a GraphQL API.

DCS Corporation

Fort Belvoir, VA

In this role, you will assist in planning, organizing, and conducting exploratory, advanced, and engineering development as well as production engineering studies/programs for new and improved items for combat use under various battlefield and urban terrain conditions. Assists in planning, organizing, and conducting exploratory, advanced, and engineering development as well as production engineering studies/programs for new and improved items for combat use under various battlefield and urban terrain conditions.

Credence

McLean, VA

Architect and deliver end‑to‑end AI/ML solutions on Google Cloud using Vertex AI (Workbench, Pipelines, Training, Model Registry, Online/Batch Prediction, Feature Store, Model Monitoring) and Gemini/LLM services—optimized for performance, cost, and maintainability. Proven experience architecting robust data ingestion, processing, and transformation workflows using Dataflow, Data Fusion, Dataproc, BigQuery, and Looker and integrating these platforms with Vertex AI for model training, deployment, and inference.

Jobot

$100000 - $200000

Washington, DC

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. This is a permanent role that will require you to use your knowledge and experience in air distribution, ventilation, automation, controls, design, development, construction, QA, QC, LEED, BD+C, ASHRAE, and other related areas.

Pearl River Technologies

Greenbelt, MD

In the FDF, we support the International Space Station, SpaceX, the Magnetospheric Multiscale (MMS), Tracking and Data Relay Satellite System (TDRSS), Lunar Reconnaissance (LRO), Transiting Exoplanet Survey Satellite (TESS), James Webb Space Telescope (JWST), the upcoming launch of Roman Space Telescope (RST), among many others. Pearl River Technologies is an SBA certified HUBZone small, disadvantaged business (SDB) providing professional, technical and administrative support services to federal, state and local government agencies.

Sarnova

Washington DC, DC

In these newly created software development leadership roles (2), you will enable Sarnova’s/Cardio Partners technology organization to deliver faster, smarter, and more reliably. Summary: As the Software Engineering Manager, you will build and lead a high-performing team responsible for delivering enterprise technology software solutions and driving Agile delivery excellence.

Framatome

$130000 - $176000

Washington, DC

Direct independent reviews of department work products, risk assessments, Apparent Cause Analyses, Root Cause Analyses, Failure Modes and Effects Analysis, provides inputs to business proposals etc. From our facilities in Virginia, Washington, North Carolina, Pennsylvania, Massachusetts and beyond, we deliver outage services, advanced nuclear fuel technologies, and next-gen reactor innovations that keep the lights on.

Elastic

Washington DC, DC

Technical Leadership: Act as a principal voice in architectural and design discussions, guiding the security posture and development practices of Elasticsearch and the Elastic Stack, and driving long-term security strategy within the team and across the organization. • Cross-Team Teamwork: Act as the primary technical point of contact for security features, driving alignment and integration with search, AI, cloud, and operations teams to ensure consistent security posture across the Elastic Stack.

Exelon

$84800 - $116600

Washington, DC

We are a Fortune 200 company, 20,000 colleagues strong serving more than 10.7 million customers at six energy companies -- Atlantic City Electric (ACE), Baltimore Gas and Electric (BGE), Commonwealth Edison (ComEd), Delmarva Power & Light (DPL), PECO Energy Company (PECO), and Potomac Electric Power Company (Pepco). Performs engineering tasks associated with large projects or a number of small projects (e.g., analyze and interpret the results of complex power flows and perform complex engineering tests, and analyze non-specific and ambiguous results) .

Johns Hopkins Applied Physics Laboratory (APL)

$105000 - $290000

Laurel, MD

As part of a multi-disciplinary research team, you will join computational and experimental scientists and engineers who are passionate about developing innovative solutions that can impact the future development and application of electromagnetic devices using novel metasurface and phase-change material designs. We are seeking a creative and multidisciplinary scientist to help us mature existing projects and grow new ones by identifying emerging sponsor challenges that require novel electromagnetic solutions in the optical frequency range.

Johns Hopkins Applied Physics Laboratory (APL)

$100000 - $245000

Laurel, MD

APL provides eligible staff with a comprehensive benefits package including retirement plans, paid time off, medical, dental, vision, life insurance, short-term disability, long-term disability, flexible spending accounts, education assistance, and training and development. You will work with a small team of engineers and scientists on multiple concurrent projects to collect, analyze, document and monitor requirements that fuel the engineering development cycle.

GCR Professional Services

$40 - $50

Chantilly, VA

Project Management: Plan and manage electrical engineering projects, including creating project timelines, allocating resources, and coordinating with cross-functional teams. Collaboration: Collaborate with other engineers, technicians, and professionals to integrate electrical systems into larger projects or products.

Johns Hopkins Applied Physics Laboratory (APL)

$105000 - $290000

Laurel, MD

We are seeking a dynamic, creative, and analytical candidate to help us assess the design and influence the capability development of the U.S. Navy's Maritime Surveillance Systems (MSS) Low Frequency Active (LFA), Compact LFA (CLFA), and prototype Deployable Active Systems. Liaise between JHU/APL, acquisition sponsors (PMS 485), and fleet operational commands to inform future development decision-making and optimize operational utility and MSS LFA, CLFA and prototype Deployable Active Systems employment.

The Computer Merchant, LTD.

$75 - $80

Gaithersburg, MD

While an hourly range is posted for this position, an eventual hourly rate is determined by a comprehensive salary analysis which considers multiple factors including but not limited to: job-related knowledge, skills and qualifications, education and experience as compared to others in the organization doing substantially similar work, if applicable, and market and business considerations. ​Software Engineer with AI-enabled development experience based in Gaithersburg, MD; Eagan, MN; or Egg Harbor, NJ to support the UK National Airspace System Replacement Product Delivery Team (UK NASR PDT).

Jobot

$95000 - $135000

Fairfax, VA

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. As a Water Resources Engineer, you will be part of our dynamic team, playing a crucial role in the design and implementation of water resource projects in the construction industry.

Amazon Web Services, Inc.

Arlington, VA

Designing and implementing complex, scalable, and secure front-end applications on AWS tailored to customer needs, including selecting and configuring appropriate frameworks, libraries, and architectures for specific use cases. - Collaborating with customer stakeholders to identify high-value front-end modernization opportunities, gather requirements, and propose effective strategies for implementing modern web applications and user interface solutions.