6,050 Results for

Software Test Engineer Jobs in Gaithersburg, MD

Jobs

Reston, VA

Description: The assigned resource will be responsible for developing the AI program focused on automating requirements and test case preparation, utilizing Visual Studio Code, Python, Copilot AI, and other tools provided by the postal service. • Design and develop test automation scripts using Selenium with Python, leveraging available AI models and LLMs to accelerate script creation, maintenance, and self healing.

1 day ago

Washington DC, DC

This role develops and executes test strategies, manages testing activities, and collaborates with Product Owners, Federal Project Managers (FPMs), Business Analysts, Developers, UX/UI Designers, and stakeholders to deliver secure, reliable, accessible, and high-performing applications. The Software Test Lead is responsible for leading the Quality Assurance (QA) and testing efforts for enterprise web applications, ensuring software quality through comprehensive manual and automated testing.

13 days ago

Manassas, VA

$90,000–$115,000 / 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. Integrating and testing software deliveries, verifying bug fixes, and performing regression testing across multiple hardware and operating system configurations.

4 days ago

Joint Base Andrews, MD

This includes reviewing weapon system contractor-provided integration program deliverables to assist the Government in their review of documentation and assisting in the development of organic data for the following systems engineering milestones: System Requirements Review (SRR), System Design Review, Preliminary Design Review, Critical Design Review, Test Readiness Review, and engineering design audits such as Functional Configuration Audit (FCA) and Physical Configuration Audit (PCA) respective to the needs of each modification program. Program coordination tasks shall include but not be limited to: coordinating all requirements between aircraft modification programs to include ground test requirements, flight test requirements, test assets, and any other potential resources; briefing and/or preparing briefings on modification program test status to the NGB as requested; assisting in identifying and developing test core documentation for modification programs, and; execution oversight for associated program test documents.

7 days ago

MONTGOMRY VLG, MD

$165,000–$185,000 / 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.

4 days ago

Chantilly, VA

With customers’ mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security. By submitting your resume for this position, you understand and agree that L3Harris Technologies may share your resume, as well as any other related personal information or documentation you provide, with its subsidiaries and affiliated companies for the purpose of considering you for other available positions.

11 days ago

Herndon, VA

BS/BA (or equivalent) in Optical, Electrical, Computer Engineering, Computer Science, Information Technology or related field, and minimum 6 years Software or systems experience or Graduate’s degree and 4 years software or systems experience. This Integration and Test / Technical trainer needs to experience in developing and executing structured training sessions tailored to customer needs, ensuring knowledge retention and effective skills transfer.

11 days ago

Manassas, VA

$85,000–$95,000 / 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 leading provider of information technology, logistics management, business process re-engineering, financial management, and administrative support services for the Department of the Navy and Homeland Security.

4 days ago

Gaithersburg, MD

$140,000–$165,000 / 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.

4 days ago

Herndon, VA

With customers’ mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security. L3Harris Technologies is an agile global aerospace and defense technology innovator, delivering end-to-end solutions that meet customers’ mission-critical needs.

10 days ago

Herndon, VA

In addition to technical contributions, this position conducts the day‑to‑day software lead activities by providing technical guidance, assigning tasks, reviewing and approving formal documentation, and estimating labor, tools, and other resources to meet budget and schedule commitments. With customers’ mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security.

11 days ago

Reston, VA

$100,600–$199,000 / year

Masters Degree in Computer Science or related technical field AND 6+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python OR Bachelors Degree in Computer Science or related technical field AND 8+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python. We own and operate Microsoft 365 services including Office 365, Exchange, Outlook, Teams, SharePoint, OneDrive, Purview, Information Protection, PSTN, Office Online, Office Services, and are actively bringing CoPilot to sovereign environments.

30+ days ago

99999, Maryland

Strong proficiency in z/OS (MVS) operations in a large-scale environment with multiple Sysplex systems (including IPL procedures). • Current working knowledge of subsystems: JES2, SDSF, RACF, TSO, TCP/IP, Control-M, CICS, DB2 .

8 days ago

Washington, DC

This includes creating test plans, test cases, and test scripts to assess the functionality and performance of hardware components or devices such as motherboard, memory, CPU, storage (SSD, HDD, NVMe) and PCIE devices (NIC, GPU, Mezz cards, RAID cards). Expertise with hardware and API solutions for controlling, managing and stressing L10 devices (servers, network and storage SSDs, NVMe): IPMI, Redfish, mprime, FIO, Linpack, ptugen, memtester.

4 days ago

Washington DC, DC

Remote

$154,445–$185,334 / year

Today, more than 35 million users and 7,000+ customers – including Anthropic, Bloomberg, NVIDIA, Microsoft, and Salesforce – trust Grafana Labs to ensure reliability of their applications and systems, resolve incidents quickly, and optimize their telemetry to reduce noise and cost. Our Real User Monitoring (RUM) initiative focuses on capturing, storing, and querying high-volume user interaction data from browsers and mobile devices, enabling teams to understand real-world user experiences at scale.

3 days ago

Alexandria, VA

$95,000–$110,000 / 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 leading provider of intelligent transportation and mobility solutions, delivering innovative software, systems, and services that help organizations manage complex transportation infrastructure more efficiently, safely, and sustainably.

4 days ago

Fort Meade, MD

$97,000–$224,000 / year

Bachelor’s degree in Computer Science or related discipline from an accredited college or university OR four (4) years of additional SWE experience on projects with similar software processes in lieu of degree. Design, develop and modify software systems, using scientific analysis and mathematical models to predict and measure outcome and consequences of design.

3 days ago

Vienna, VA

$97,240–$162,240 / year

Compensation decisions and the base range for this role take into account many factors including but not limited to skill sets; experience and training; licensure and certifications; and other business and organizational needs. From building intuitive AI web interfaces to writing Python for geoprocessing tools and AI agents, youll be exposed to the full development lifecycle and cutting-edge GIS solutions.

29 days ago

Springfield, VA

The successful candidate will support a high performing team of Government and Contractor professionals by testing software releases to ensure they function correctly, documenting failed test cases, and documenting any changes or updates needed to existing procedures. With customers’ mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security.

11 days ago

Arlington, VA

$87,100–$157,450

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 . Projects involve small multi-disciplinary teams of engineers working together in spiral or agile development environments to meet aggressive customer schedules aimed at near-term field demonstrations.

8 days ago

Finksburg, MD

The Project Secretary provides administrative and operational support to project managers and the entire team to ensure smooth project coordination, documentation management, communication, and other aspects of the operations. Beginning as a small family business a half century ago, we are now a dynamic group of vertically integrated companies that has been growing and prospering for over 50 years.

7 days ago

Sterling, VA

Remote

$120,000–$165,000 / year

Successful candidates will have experience in Electrical Systems & Equipment with a focus in Data Centers and Mission Critical Facilities; experience and an understanding of Building MEP Systems Design, Construction, and Commissioning of Critical Systems ranging in size, rating, and complexity; Commissioning, Testing and Troubleshooting of Electrical Systems and related controls. Knowledgeable with common mechanical, and controls-related building equipment, including: Engine generators / Uninterruptible power supplies & battery systems / Medium and low-voltage electrical switchgear/ PLC controls and sequences of operations / Automatic transfer switches / Static transfer switches / Power distribution units / Busways.

4 days ago

Arlington, VA

$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 27, 2026 For 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.

8 days ago

Arlington, VA

$87,100–$157,450

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 . June 23, 2026 For 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.

8 days ago

Vienna, VA

$97,240–$162,240 / year

Design, implement, and maintain high-speed CI/CD pipelines using GitHub Actions/Azure DevOps for cloud-native workflows and Jenkins for complex, cross-platform on-premises build automation. Compensation decisions and the base range for this role take into account many factors including but not limited to skill sets; experience and training; licensure and certifications; and other business and organizational needs.

29 days ago

Manassas, VA

$80,000–$115,000 / year

4 days ago

Arlington, VA

$69,550–$125,725

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 . Bachelor’s Degree in Computer Engineering, Electrical Engineering, or Computer Science and 2+ years of experience for a Master’s degree and relevant experience.

8 days ago

Arlington, VA

$131,300–$237,350

Implement software release version control, provide release management support throughout a software product's life cycle (initial software development through promotion to Test, QA and Production Environments), ensuring the consistency and reliability of software builds. 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 .

8 days ago

Manassas, VA

$80,000–$100,000 / year

4 days ago

Alexandria, VA

$87,100–$157,450

If you’ve been building your skills in backend development, object‑oriented programming, and mission‑driven engineering , and you’re ready for work that actually moves the needle, this is the kind of opportunity cleared engineers pursue when they want to grow while making real impact. 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 .

8 days ago

Columbia, MD

$107,900–$195,050

March 17, 2026 For 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. 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 .

8 days ago

Arlington, VA

$107,900–$195,050

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 . Our division primarily focuses on research & development and advanced prototyping, transforming state-of-the-art signal processing algorithms into real-time software systems deployed on advanced RF platforms.

8 days ago

Chantilly, VA

Intern

With the experience of hundreds of thousands of successful implementations, including macro, DAS, Small Cells, and Wi-Fi, the world’s leading network operators and OEMs trust our knowledge and experience to plan, perform, troubleshoot, and implement an array of technologies and solutions. This is a unique opportunity for a college student to gain hands-on experience working on an established, high-scale project, where you will contribute to real-world features that power global wireless networks.

30+ days ago

Gaithersburg, MD

$107,900–$195,050

Leidos National Security Sector combines technology-enabled services and mission software capabilities in the areas of cyber, logistics, security operations, and decision analytics to support our defense and intel customers’ mission to defend against evolving threats around the world. Leidos Intel Sector combines technology-enabled services and mission software capabilities in the areas of cyber, logistics, security operations, and decision analytics to support our defense and intel customers’ mission to defend against evolving threats around the world.

8 days ago

Alexandria, VA

$100,000–$110,000 / 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. The ideal candidate has experience supporting Linux and Windows environments, containerized applications, and production systems while working directly with customers and internal engineering teams.

4 days ago

Arlington, VA

$100,000–$110,000 / 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. Their platforms help agencies improve traffic flow, road safety, and air quality, and they support large-scale, high-volume transportation networks worldwide.

4 days ago

McLean, VA

$150,000–$175,000

The position focuses on enabling reliable and scalable software delivery by building and optimizing CI/CD pipelines, infrastructure automation, and deployment workflows, while improving developer experience, release velocity, application quality, and system reliability across multi-stack environments. This role supports a variety of modern applications, including backend services, frontend applications, and data pipelines, with a strong emphasis on pipeline engineering, Infrastructure as Code (Terraform), and cloud-native deployments.

10 days ago

Laurel, MD

$100,000–$245,000

We are seeking talented team members to apply knowledge from multiple fields—math, physics, engineering, computers science, data science, others—to build and deploy software systems that address problems in these areas, and to ultimately improve the capabilities of our nation's developmental and deployed defensive systems. We are a team of 40+ engineers and scientists who perform innovative research, modeling, analysis, testing, and prototype development in the cruise/ballistic/hypersonic missile defense and electronic warfare domains.

8 days ago

Chantilly, Virginia

$40–$50 / hour
Contractor

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.

30+ days ago

Reston, VA

A minimum of eight (8) years experience in software development, software quality assurance/control, and/or related field; • A degree from an accredited College/University in Software Engineering, Computer Science, or related discipline is preferred; • Able to perform all functional duties independently on high-visibility programs, or mission critical aspects of a given program; • Able to oversee the efforts of direct reporting resources and/or be responsible for the efforts of all staff assigned to a specific job; • Experience training/mentoring less experienced personnel; • Extensive knowledge of and experience with formal software testing for complex software applications; • Extensive experience testing software applications, identifying/documenting defects, and working with developers and end users to resolve defects; • Extensive experience with multiple defect tracking tools (e.g. Rational, Mercury); • Extensive experience authoring software-quality-related documentation such as requirements specifications, test plans, test cases, test scripts and test reports; • Able to obtain Postal clearance; • Excellent communication skills.

Today

Washington DC, DC

This role collaborates with Product Owners, Federal Project Managers (FPMs), Business Analysts, Solution Architects, UX/UI Designers, QA Engineers, and DevSecOps teams to deliver end-to-end solutions across the full software development lifecycle. The Senior Full Stack Developer is responsible for designing, developing, integrating, and supporting secure, scalable, and high-performing enterprise web applications using modern cloud-native technologies.

14 days ago

Reston, VA

$100,600–$199,000 / year

Develops an understanding of the code, features, and operations of specific products at scale as required to contribute to incremental improvements in product availability, reliability, efficiency, observability, and/or performance; participates in on-boarding, code/design reviews, and regular meetings with the engineering teams that develop and/or manage those products.-Researches and maintains an awareness in industry trends, advances in distributed systems and cloud technologies, new tools, and/or processes for maintaining and improving product availability, reliability, efficiency, observability, and/or performance. -Engages with product engineering teams by participating code/design reviews, regular meetings, on-call rotations and incident responses throughout product development and operations cycles; leverages technical expertise on underlying systems/platforms and insights drawn from engagements with product engineering teams and telemetry analyses to propose potential improvements in code base and designs across components and features of one or more products.

30+ days ago

Washington, DC

With operations in over 100 facilities across 30 countries, Jabil delivers innovative, integrated, and customized solutions to clients across diverse industries—including automotive, consumer lifestyle and wearables, defense and aerospace, smart home and building, industrial and energy, enterprise and infrastructure, healthcare, mobility, packaging, and printing. This position is focused on leading teams that design, build, and deploy production-grade software platforms, automation systems, and test infrastructure across global manufacturing environments, with a strong emphasis on scalable software development and system architecture.

4 days ago

Washington, DC

Jabil is seeking a Senior Manager, Manufacturing Test Development who will directly contribute to the transformative growth within our Intelligent Infrastructure division by leading the development of rack-scale manufacturing test solutions for hyperscale, AI, and data center infrastructure platforms. This role sits at the intersection of software, hardware, and manufacturing, and you will be responsible for managing the technical direction of rack-scale test software and system integration programs through the lens of the customer, factory, and services.

4 days ago

McLean, VA

Remote

Drive the expansion of test automation and integration of automated tests into CI/CD pipeline tools, while maintaining clear test documentation, promoting QA best practices, and coordinating with development, product, and operations teams to improve overall delivery quality. Develop and oversee test strategies, test plans, test cases, test data, and automated testing frameworks, while guiding QA team members in test execution, defect identification, and resolution tracking.

3 days ago

Hanover, MD

We are seeking a Compliance Engineer which supports pre-sales, estimating, engineering, manufacturing and field services by providing commercial and technical product regulatory expertise related to low and medium voltage power distribution equipment, E-houses and control systems. Experience in engineering roles within manufacturing, industrial, or related technical industries – specifically power distribution equipment (UL 508A, UL 891, UL 1558).

3 days ago

Annapolis Junction, MD

$154,050–$278,475

The selected individual will lead all security engineering efforts for a large, complex network environment with geographically distributed systems; and will manage a team of Information Systems Security Officers (ISSOs) and Information Systems Security Engineers (ISSEs), providing technical leadership and direction to meet program requirements. At least twelve years of experience with defense-in-depth principals/technology (including access control, authorization, identification and authentication, public key infrastructure, network and enterprise security architecture) and applying risk assessment methodology to system development.

3 days ago

Tysons, VA

Continuously identify technical risks and gaps; devise mitigation strategies in anticipation of customer needs and communicate project status to internal and external executive stakeholders. • Drive sales discussions on architecture and engineering, particularly with explaining the C3 AI Platform and its interoperability with existing systems.

30+ days ago

Tysons, VA

C3 AI delivers a family of fully integrated products including the C3 Agentic AI Platform, an end-to-end platform for developing, deploying, and operating enterprise AI applications, C3 AI applications, a portfolio of industry-specific SaaS enterprise AI applications that enable the digital transformation of organizations globally, and C3 Generative AI, a suite of domain-specific generative AI offerings for the enterprise. You will be working directly with our customers to design, develop, and deploy production applications, demos, and proofs-of-technology.

30+ days ago

Tysons, VA

C3 AI delivers a family of fully integrated products including the C3 Agentic AI Platform, an end-to-end platform for developing, deploying, and operating enterprise AI applications, C3 AI applications, a portfolio of industry-specific SaaS enterprise AI applications that enable the digital transformation of organizations globally, and C3 Generative AI, a suite of domain-specific generative AI offerings for the enterprise. • Continuously identify technical risks and gaps; devise mitigation strategies in anticipation of customer needs and communicate project status to internal and external executive stakeholders.

30+ days ago

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Software Test Engineer Jobs in Gaithersburg, MD

Senior Software (AI) Test Engineer PlanIT Group

Software Test Lead NuAxis Innovations

Junior Software Systems Integration Engineer - RHEL - Secret Clearance Required Jobot

Integration and Test Engineer NGB-12.24 Credence

Senior Software Engineer (C++ / Java) Jobot

Senior Specialist, Integration & Test Engineer L3Harris Technologies

(DoD SkillBridge), Specialist, Integration & Test Engineer L3Harris Technologies

Test Engineer (AN/BYG-1) Jobot

Sr. Software Engineer Jobot

Specialist, Software Engineer (Embedded Software) L3Harris Technologies

Lead, Software Engineer L3Harris Technologies

Software Engineer II - CTJ - POLY Microsoft

Software Engineer Lead System One

Senior Manufacturing Test Development Engineer JABIL CIRCUIT, INC

Senior Software Engineer - Observability Real User Monitoring Grafana Labs

System Engineer Jobot

Software Engineer with TS-SCI with Poly System One

Software Development Engineer II - Back End Esri

Senior Specialist, Systems Engineer - User Acceptance Tester L3Harris Technologies

Real-Time Software Engineer Leidos

Project Engineer The H&K Group

Sr Commissioning Engineer (Data Centers) – Remote Jobot

Principal Software Engineer Leidos

Lead Software Engineer Leidos

Software Development Engineer II - CI/CD & Platform Automation Engineer (DevOps) Esri

Entry Level Software Integrator | Clearance | Linux/Windows Jobot

GPU Software Engineer Leidos

Principal Software Engineer / Tech Lead Leidos

Junior Linux Systems Engineer (RHEL/Clearance) Jobot

Mid-Level Backend Software Engineer Leidos

Software Reverse Engineer Leidos

Senior Software Defined Radio (SDR) Engineer Leidos

Software Developer (Full Stack/Backend) Intern TeleWorld Solutions

Senior Software Engineer Leidos

Systems Engineer (Intelligent Transportation System Industry Exp Required) Jobot

Systems Engineer Jobot

DevSecOps Engineer Credence

Software Engineer for Sensor/Weapon Command & Control Johns Hopkins Applied Physics Laboratory (APL)

Electrical Engineer II (VA) GCR Professional Services

Quality Assurance Engineer PlanIT Group

System/DevSecOps Engineer NuAxis Innovations

Software Engineering II - CTJ - Poly Microsoft

Test Development Manager JABIL CIRCUIT, INC

Senior Manager, Manufacturing Test Development JABIL CIRCUIT, INC

Senior Quality Assurance Automation Engineer System One

Compliance Engineer PwrQ Holdings LLC

Lead Security Engineer with TS/SCI Poly Leidos

Senior Solution Engineer - Federal (Intelligence Community) C3 AI

Solution Engineer - Federal C3 AI

Senior Solution Engineer - Federal C3 AI

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