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Junior Engineer United States Jobs

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Software Engineer Junior Level
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Seeking a **Junior-Level Software Engineer** with an active **TS/SCI Full Scope Polygraph** for a role in **Linthicum, MD**. You will develop and maintain complex systems using **Python**, **Django/Flask**, and **MongoDB/MariaDB**. This position offers a competitive benefits package including **2...
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United States , Linthicum
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100000.00 - 200000.00 USD / Year
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Integrity Technology Consultants
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Software Engineer Junior Level
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Seeking a **Junior-Level Software Engineer** with an active **TS/SCI CI or FS Polygraph** for a critical role at **Fort Meade**. You will develop **AI/ML assisted systems** and customize interfaces with **Large Language Models (LLMs)**. Requires 8+ years of SWE experience, a Bachelor’s in CS, and...
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United States , Fort Meade
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125000.00 - 155000.00 USD / Year
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Integrity Technology Consultants
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Junior Data Engineer
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Join a dynamic team as a Junior Data Engineer in Morristown, US. You will build and optimize scalable data pipelines using Databricks, Apache Spark, and Delta Lake on Azure. Key skills include SQL, Python, and data modeling with medallion architecture. Enjoy medical, dental, vision, and 401(k) be...
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United States , Morristown
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Not provided
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Robert Half
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Junior Cybersecurity Engineer
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United States , Bedford
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125000.00 - 135000.00 USD / Year
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Astrion
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Junior Systems Engineer
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Junior Systems Engineer needed for a hybrid role in Tysons, VA, supporting DoD cloud modernization. You will collaborate with Cloud Engineers and Architects on AWS services (EC2, RDS, S3), Infrastructure as Code (Terraform), and automation. Requires a Bachelor’s degree, Security+ and AWS certs (o...
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United States , Tysons
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90000.00 - 100000.00 USD / Year
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Apex Systems
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Junior Systems Design Engineer - Nuclear
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Join a multidisciplinary team as a Junior Systems Design Engineer in Lewis Center, OH, supporting advanced nuclear and regulated industrial applications. You’ll contribute to the full system lifecycle—from concept through testing—while developing expertise in high-reliability systems. Ideal for c...
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United States , Lewis Center
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ATS Automation Tooling Systems Inc.
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Junior Software Engineer
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Join Altamira Technologies as a Junior Software Engineer in Warrenton, VA. You’ll apply full-stack development skills using Java, JavaScript, and Python to build mission-critical systems. Requires a Bachelor’s in CS/CE/EE, strong Java expertise, and an active Top Secret clearance. Enjoy a collabo...
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United States , Warrenton
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Altamira Technologies
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Junior Engineer (Environmental)
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Seeking a **Junior Engineer (Environmental)** in **San Francisco** to perform entry-level civil, mechanical, and environmental engineering work. Ideal for recent graduates with a **baccalaureate degree** in Environmental, Civil, or Chemical Engineering (ABET accredited or with an EIT certificate)...
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United States , San Francisco
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113282.00 - 137670.00 USD / Year
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City and County of San Francisco
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Junior RF Engineer
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Join Amentum as a Junior RF Engineer in Arlington. You will test, evaluate, and integrate DoD systems, performing RF modeling, EMI/EMC analysis, and detailed reporting. This role requires a BSEE degree, U.S. citizenship, and the ability to obtain a Secret clearance. We offer comprehensive benefit...
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United States , Arlington
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70000.00 - 80000.00 USD / Year
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Amentum
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DARPA ACO Junior Engineer – Sweet Emotion Program
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Join DARPA's Sweet Emotion Program as a Junior Engineer in Arlington. Work on cutting-edge national security sensor systems across mechanical, aerospace, electrical/RF, and physics domains. This role requires a Master's degree, 2-7 years' experience, an active Top Secret clearance, and a passion ...
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United States , Arlington
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120000.00 - 140000.00 USD / Year
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Amentum
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Junior Software Integration/Test Engineer
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Join our Aerospace Technology team in Dayton, Ohio, as a Junior Software Integration/Test Engineer. You will test cutting-edge autonomous systems, utilizing Python, Git, and CI/CD pipelines within an Agile environment. This role requires U.S. Citizenship, a relevant BS degree, and offers benefits...
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United States , Dayton
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DCS Corporation
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NOC Engineer / Junior Network Engineer
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Launch your networking career as a NOC Engineer in Marietta. Monitor infrastructure, troubleshoot issues, and ensure system uptime in a 24/7 environment. This entry-level role offers comprehensive benefits and growth in network operations.
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United States , Marietta
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Not provided
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Robert Half
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Systems Engineer - Junior
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Join Amentum's dynamic IT team in Colorado Springs as a Junior Systems Engineer. This role requires a TS/SCI clearance and expertise in VMware, Nutanix, and Windows Server environments. You will maintain critical virtualized infrastructure and ensure system integrity. We offer comprehensive benef...
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United States , Colorado Springs
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145000.00 USD / Year
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Amentum
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Junior Software Integration/Test Engineer
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Join our Aerospace Technology team in Dayton, Ohio, as a Junior Software Integration/Test Engineer. This role supports a major initiative testing autonomous air platform systems. Requires a BS in Computer Science or related field, U.S. Citizenship, and familiarity with automated testing, CI/CD, L...
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United States , Dayton
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DCS Corporation
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Junior Software Integration/Test Engineer
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Join DCS Corporation in Dayton, Ohio, as a Junior Software Integration/Test Engineer. Support a major aerospace initiative, testing autonomous systems for air platforms. Requires a BS in CS/Engineering, U.S. Citizenship, and familiarity with automated testing, Linux, and CI/CD. Enjoy benefits lik...
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United States , Dayton
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DCS Corporation
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Junior Systems Engineer 1
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Join our team in Chantilly as a Junior Systems Engineer. You will develop models for complex space systems using SysML and simulation tools. This role requires a TS/SCI clearance and a STEM degree. Apply your passion for digital engineering to support critical national security missions.
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United States , Chantilly
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Arcfield
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Junior Systems Engineer
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Join our team as a Junior Systems Engineer in Chantilly. This role requires a TS/SCI clearance and a STEM degree. You will apply MBSE and digital engineering concepts to model complex space-based systems. Ideal candidates have a passion for mission contribution and learning.
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United States , Chantilly
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Arcfield
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Software Engineer Junior Level
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Seeking a TS/SCI with Poly-cleared Junior Software Engineer in Linthicum. Develop and enhance complex software systems using analytics tools like Pig and PySpark. Enjoy a robust benefits package including 401K, generous PTO, and tuition assistance. Join a team delivering critical cybersecurity an...
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United States , Linthicum
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Salary
100000.00 - 200000.00 USD / Year
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Integrity Technology Consultants
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Dev Ops Engineer – Junior
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Join our mission-driven team in Washington, DC as a Junior DevOps Engineer. Utilize your scripting skills and 1+ year of DevSecOps experience to design and support cloud infrastructure. This role requires an active Top-Secret clearance and offers comprehensive benefits, including insurance and 40...
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United States , Washington
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Salary
100000.00 - 115000.00 USD / Year
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Amentum
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Email Security Engineer, Junior
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Seeking a Junior Email Security Engineer to design secure systems for the DoD at Fort Meade. You'll implement policies, integrate components like zero-day detection, and resolve complex tickets. Requires cybersecurity knowledge, a Secret clearance, and a bachelor's degree. We offer full benefits,...
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United States , Fort Meade
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Salary
55200.00 - 126000.00 USD / Year
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Booz Allen Hamilton
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About the Junior Engineer role

Launch your technical career with Junior Engineer jobs, the essential entry point for graduates and early-career professionals into the dynamic world of engineering and technology. This broad category encompasses a variety of specializations, including software, systems, support, sales, and mechanical engineering, each offering a unique path to apply academic knowledge to real-world challenges. At its core, a Junior Engineer role is a foundational position designed for learning, growth, and contributing to a team under the guidance of experienced professionals.

Individuals in these jobs typically engage in a mix of hands-on technical tasks, collaborative projects, and continuous learning. Common responsibilities across many specializations include assisting in the design, development, and testing of systems or software; providing technical support and troubleshooting issues; maintaining documentation; and participating in code reviews or technical meetings. For client-facing roles like Sales or Support Engineering, duties often involve interpreting technical requirements, liaising with internal teams and customers, and helping to prepare proposals or quotations. The unifying thread is the application of engineering principles to solve problems, optimize processes, and support the delivery of products or services.

To succeed in Junior Engineer jobs, a blend of technical aptitude and soft skills is paramount. Typically, a bachelor’s degree in a relevant field such as Computer Science, Engineering, Information Technology, or a related discipline is a standard requirement. Foundational technical skills vary by specialty but may include programming languages (e.g., Java, Python), understanding of operating systems, basic networking, or familiarity with specific engineering software and tools. Equally important are strong analytical and problem-solving abilities, a keen attention to detail, and a methodical approach to tasks.

Beyond technical prowess, successful junior engineers possess excellent communication skills to explain complex concepts clearly to both technical and non-technical colleagues. They demonstrate a proactive, learning-oriented mindset, resilience in fast-paced environments, and strong teamwork. Adaptability and a commitment to following best practices, such as version control, testing, and documentation, are highly valued. These roles are ideal for those eager to build a robust professional foundation, offering unparalleled opportunities to develop specialized expertise, understand industry workflows, and advance toward senior engineering positions. Explore Junior Engineer jobs today to find the perfect platform to transform your theoretical knowledge into impactful professional experience.