UNKNOWN

FEED

We are currently looking for a Backend Software Engineer Level 3 with the following qualifications and technical experience: Required Education/Experience: Experience developing applications interfacing with REST-based APIs/services in Apache Tomcat/Java or NodeJS environments.

Emtak

Software Engineer L3 - TS/SCI with Poly required

Basic Life and AD&D insurance, Long-Term and Short-Term Disability at no cost to eligible employees - Up to four (4) weeks paid parental leave - Birthdays and Jovian Concepts’ anniversary recognition and gifts - Annual merit increases - Loyalty bonus- Employee and family-friendly corporate events, including our annual Team Build event and Holiday Party extravaganza. In a recent employee survey, Jovian Concepts earned a 92% Overall Workplace Experience Score, and 100% of employees agreed that they would highly recommend working at Jovian Concepts to others.

Jovian Concepts

Software Engineer L1\-2

FULL_TIME

The role provides technical leadership across Agile teams, guiding software modernization efforts and delivering resilient enterprise solutions that support evolving mission requirements. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

YEAR

Markon

Software Engineer Level 3

[AW]-iCims

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 (For Remote Opportunities), education and certifications as well as Federal Government Contract Labor categories. Responsibilities include, but are not limited to: 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.

Our Mission
Our mission is empowering our nation through a diverse and skilled workforce securely delivering innovative technology, consulting services and digital solutions for our customers’ mission success, every day.

Our Vision
Our vision is Securing the Future as the most trusted partner for U.S. Defense, Intelligence and Federal Civilian customers through the power of One ManTech. When these agencies think of an essential partner for their national and homeland security needs, they think ManTech.

Our Values
Our values are grounded in a bedrock of truth, integrity and caring for each other and the mission. We hold steadfast to:

• TRUST – We earn and protect the trust of our customers, employees and investors through an enduring foundation of respect, fairness, credibility and honoring our commitments, always.

• INCLUSION – We are an inclusive, diverse and talented workforce with a passion for mission success, intellectual capital, creativity and integrity. Our high ethical standards and investment in our people build confidence with our customers.

• QUALITY– We deliver exceptional quality to customers through differentiated technology solutions and an uncompromising focus on excellence, value and innovation.

ManTech International Corp

Software Engineer

pointer-events-auto [content-visibility:auto] supports-[content-visibility:auto]:[contain-intrinsic-size:auto_100lvh] R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]" dir="auto"> *]:pointer-events-auto [content-visibility:auto] supports-[content-visibility:auto]:[contain-intrinsic-size:auto_100lvh] R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]" dir="auto"> Desired Qualifications . Working within a collaborative Agile environment, the role supports modern analytics frameworks, enterprise data integration, and AI-assisted software development to accelerate mission capabilities and engineering efficiency.

Software Engineer Level 2

Working within a collaborative Agile environment, the role supports modern analytics frameworks, enterprise data integration, and AI-assisted software development to accelerate mission capabilities and engineering efficiency. This role designs and maintains Java-based applications, ETL workflows, and data transformation services that curate and deliver enterprise data for analytical use.

Software Engineer Level 1

Design and code new software or modify existing software to add new features, with expertise in Java and related development frameworks. Develop simple data queries for existing or proposed databases or data repositories (e.g., SQL, NoSQL).

The Josef Group

Principal Software Engineer

Analyze user requirements to derive software designs for new applications or modifications to existing software, ensuring the addition of new features and capabilities aligns with project goals. Work closely with cross-functional teams, including system architects, QA engineers, and project managers, to ensure software meets user requirements and is delivered on schedule.

Sr. Software Engineer - TS/SCI Poly required

The position will develop and prototype innovative capabilities that advance the customer's Data Architecture Strategy, leveraging modern technologies to deliver scalable, high-performance solutions for the ingest, processing, transformation, and transport of mission-critical data. Our growing reach extends across 17 states, 116 countries, and 5 continents, where our team of dynamic professionals collaborates to deliver unparalleled program and project management services.

Markon Solutions

and/or transports placardable amounts of hazardous materials by ground in any vehicle on a public road while in commerce, may be subject to additional Federal Motor Carrier Safety Regulations including: Driver Qualification Files, Medical Certification (obtained before onboarding), Road Test, Hours of Service, Drug and Alcohol Testing, vehicle inspection requirements, CDL requirements (if applicable) and hazardous materials transportation/shipping training. Required for Certain Job Profiles: Drivers who operate Commercial Motor Vehicles with a Gross Vehicle Weight (GVW), Gross Vehicle Weight Rating (GVWR) or combination of power unit and trailer that meets or exceeds 10,001 lbs.

Blue Origin

Software Engineer II

CoStar is investing heavily in artificial intelligence to accelerate software delivery, improve platform observability, automate research and business workflows, enhance product experiences through intelligent agents and skills, and improve data quality across enterprise systems. As a Senior Software Engineer on the Platform Development team, you will play a key role in expanding the data platform that supports all of CoStar Group's largest brands including CoStar Suite, LoopNet, Homes.com and Apartments.com.

CoStar Group Inc

Senior Software Engineer (C#/.NET)

Bachelor’s Degree in Computer Science or related discipline from an accredited college or university and Seven (7) years’ experience as a SWE, in programs and contracts of similar scope, type, and complexity. Manage and execute deployments to all production sites, including pushing new software versions, validating successful rollouts, and ensuring minimal disruption to business operations.

Software Engineer L1 - TS/SCI Poly required

Salary is determined by various factors, including but not limited to, the scope and responsibilities of the position, the individual’s experience, education, knowledge, skills, and competencies, as well as geographic location and business and contract considerations. In this role, you’ll design, develop, and enhance advanced software systems—from real‑time processing tools to large‑scale data solutions.

Software Engineer - TS/SCI Poly required

Leverages AI for team velocity and upskilling, including using AI-assisted development heavily, prototyping quickly, automating repetitive engineering tasks and moving faster than traditional SWE teams. We are an AI-native, agentic intelligence platform built from the ground up to operate at planetary scale – transforming vast streams of geospatial data into predictive signals that matter.

Vantor

AI Software Engineer

ea_via_bold

We are seeking an experienced Software Engineer to support the design, development, deployment, and maintenance of enterprise-level software applications supporting critical Department of Defense (DoD) missions. The ideal candidate will have strong programming experience in C++, Python, and JavaScript , along with a background in modernizing existing applications, developing scalable software solutions, and working within Agile and DevSecOps environments.

Execution of full development lifecycle including Requirements Analysis, Software Architecture, Software Design, Algorithm Design, Unit Test Development, Integration Test Development, Embedded Software Development, Software Verification and Validation. Help design and implement new features for our embedded platforms, including, but not limited to, bringing up new cameras, SoC's, sensors, chipsets and other driver development.

GENTEX Corp

Embedded Software Engineer

As a software developer on this program, you'll collaborate with multiple product teams and immerse yourself in modern development practices, working within an agile framework to support and modernize mission management systems for our customers. Pay Range: There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications.

CACI International Inc.

Software Engineer-Ts/Sci With Poly

Sr Embedded Software Verification & Test Engineer — Lunar Permanance

ADAPTED_NOW

Builds and deploys multiple applications across diverse tech stacks, including containerized React UIs, Java and Go microservices, custom REST security services, and data stores such as MongoDB and an OpenSearch cluster. Since 2008, we have supported critical national security programs by building high-performing engineering teams and developing innovative enterprise solutions.

Established in 2006, Envision Innovative Solutions is a technology company that uses its knowledge and expertise to develop solutions and solve problems for commercial and government customers with a constant and deliberate commitment to performance and integrity.
We have developed expertise in technology projects and formed a Recruitment Service to meet the talent needs of our commercial customers. Our clients include many Technology and Financial Services companies. We have continued to grow, adding cutting edge networking solutions, web design and e-marketing services, as well as SEO strategy services.
Envision Innovative Solutions is an Equal Opportunity Employer committed to hiring and retaining a diverse workforce regardless of age. U.S. Citizenship is required for most positions.

Envision Innovative Solutions

Principal Software Engineer- Hybrid

In this role you’ll develop and maintain software that underpins complex research environments by integrating existing capabilities into new or modified systems and environments, improving reliability and performance, and enabling rapid prototyping through disciplined software engineering practices. The ideal candidate is comfortable working hands-on in a highly secure environment, collaborating closely with researchers and engineers, and can also execute independently to drive solutions end-to-end.

Peraton drives missions of consequence spanning the globe and extending to the farthest reaches of the galaxy. As the world’s leading mission capability integrator and transformative enterprise IT provider, we deliver trusted and highly differentiated national security solutions and technologies that keep people safe and secure. Peraton serves as a valued partner to essential government agencies across the intelligence, space, cyber, defense, civilian, health, and state and local markets. Every day, our employees do the can’t be done, solving the most daunting challenges facing our customers.

Software Design Engineer Jobs in Rockville, MD

Software Engineer L3 - TS/SCI with Poly required Emtak

Software Engineer L1\-2 Jovian Concepts

Software Engineer Level 3 Markon

Software Engineer ManTech International Corp

Software Engineer Level 2 Markon

Software Engineer Level 1 Markon

Principal Software Engineer The Josef Group

Sr. Software Engineer - TS/SCI Poly required Emtak

Software Engineer Level 2 Markon Solutions

Software Engineer II Blue Origin

Senior Software Engineer (C#/.NET) CoStar Group Inc

Software Engineer L1 - TS/SCI Poly required Emtak

Software Engineer - TS/SCI Poly required Emtak

AI Software Engineer Vantor

Software Engineer The Josef Group

Embedded Software Engineer GENTEX Corp

Software Engineer-Ts/Sci With Poly CACI International Inc.

Sr Embedded Software Verification & Test Engineer — Lunar Permanance Blue Origin

Principal Software Engineer- Hybrid Envision Innovative Solutions

Senior Infrastructure Software Engineer Peraton

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