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Junior Software Developer Jobs in Reston, VA (NOW HIRING)

Leidos

Jr. Software Engineer

Bethesda, MD · On-site

$57K - $104K/yr

... DevOps tools like GitHub, Jenkins, Unix bash scripting and leveraging tools such as JIRA and ... Direct experience utilizing software testing performance tools, such as Junit/Katalon and scripting ...

Leidos

Jr. Software Engineer

Bethesda, MD · On-site

$57K - $104K/yr

... DevOps tools like GitHub, Jenkins, Unix bash scripting and leveraging tools such as JIRA and ... Direct experience utilizing software testing performance tools, such as Junit/Katalon and scripting ...

Visionist, Inc.

Junior Software Engineer

Washington, DC · On-site

$100K - $145K/yr

Visionist is bidding on an upcoming PRIME contract and, in anticipation of award, we're seeking Junior Software Engineers to join our team at the Naval Research Laboratory in Washington, DC. You will ...

Visionist, Inc.

Junior Software Engineer

Washington, DC

$100K - $145K/yr

Visionist is bidding on an upcoming PRIME contract and, in anticipation of award, we're seeking Junior Software Engineers to join our team at the Naval Research Laboratory in Washington, DC. You will ...

Cinteot

Junior Software Engineer

Herndon, VA · On-site

$70K - $85K/yr

Software Engineer Location - Herndon, VA The selected candidate will formulate/define specifications for complex operating software programming applications or modify/maintain complex existing ...

Cinteot

Junior Software Engineer

Herndon, VA · On-site

$70K - $85K/yr

Software Engineer Location - Herndon, VA The selected candidate will formulate/define specifications for complex operating software programming applications or modify/maintain complex existing ...

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All JobsJunior Software Developer JobsJunior Software Developer Jobs in Reston, VA

Junior Software Developer information

See Reston, VA salary details

$25K

$92.6K

$143K

How much do junior software developer jobs pay per year?

As of Jun 18, 2026, the average yearly pay for junior software developer in Reston, VA is $92,566.00, according to ZipRecruiter salary data. Most workers in this role earn between $69,700.00 and $90,500.00 per year, depending on experience, location, and employer.

What are some typical challenges a Junior Software Developer might face when starting out, and how can they overcome them?

Junior Software Developers often encounter challenges such as understanding large codebases, managing their time effectively between learning and delivering tasks, and adapting to new development tools or frameworks. To overcome these hurdles, it's helpful to actively seek guidance from more experienced team members, participate in code reviews, and make consistent use of documentation. Regular communication within the team and a willingness to ask questions can significantly speed up the learning process and help build confidence in your role.

What Does a Junior Software Developer Do?

A junior software developer works on a development team writing and maintaining code for computer applications. As a junior software developer, your primary responsibilities are to learn the codebase, work on small bug fixes, and participate in paired programming with mid-level and senior developers. Junior software developers are entry-level positions, but as you gain experience and build up your programming skills, you will start to take on larger projects. Your job duties include attending and contributing to development team meetings, troubleshooting, patching computer code, and collaborating with other developers to create applications.

What are the key skills and qualifications needed to thrive as a Junior Software Developer, and why are they important?

To thrive as a Junior Software Developer, you need proficiency in programming languages (such as Python, Java, or JavaScript), algorithms, and problem-solving, often supported by a relevant degree or coding bootcamp experience. Familiarity with version control systems like Git, basic knowledge of databases, and experience with development frameworks are valuable technical assets. Strong communication, teamwork, and a willingness to learn help you adapt and contribute effectively in collaborative environments. These skills and qualities are essential for delivering reliable code, supporting team goals, and growing in a fast-evolving tech landscape.

What does a Junior Software Developer do?

A Junior Software Developer is an entry-level professional who assists in designing, coding, testing, and maintaining software applications. They typically work under the supervision of more experienced developers and contribute to various stages of the software development lifecycle. Their responsibilities often include writing basic code, debugging, collaborating with team members, and learning new technologies to improve their skills. This role is a great starting point for individuals looking to build a career in software development.
More about Junior Software Developer jobs
What are the most commonly searched types of Software Developer jobs in Reston, VA? The most popular types of Software Developer jobs in Reston, VA are:
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What job categories do people searching Junior Software Developer jobs in Reston, VA look for? The top searched job categories for Junior Software Developer jobs in Reston, VA are:
What cities near Reston, VA are hiring for Junior Software Developer jobs? Cities near Reston, VA with the most Junior Software Developer job openings:
Junior Software Developer jobs near you
Infographic showing various Junior Software Developer job openings in Reston, VA as of June 2026, with employment types broken down into 92% Full Time, and 8% Part Time. Highlights an 83% In-person, and 17% Remote job distribution, with an average salary of $92,566 per year, or $44.5 per hour.
Software Developer I (Junior)

Software Developer I (Junior)

3Si Security Systems

Ashburn, VA • On-site

$68K - $89K/yr

Full-time

Medical, Dental, Vision, Life, Retirement

Posted 20 days ago

Job description

Description
At 3Si, our mission is to make your world, safer. As a global leader in innovative security technology, we help businesses and law enforcement prevent and respond to crime through field-proven solutions and trusted partnerships. With over 100+ years of combined experience through our merged companies, our expertise drives measurable impact in communities worldwide.
We specialize in GPS tracking, video surveillance, and integrated response technologies that deter theft and accelerate criminal apprehension. Designed for retail, financial institutions, law enforcement, and more, our solutions combine cutting-edge tools with unmatched response capabilities. Through our exclusive DirectToDispatch™ technology, verified crime alerts are sent directly to law enforcement dispatch centers in real time-bypassing traditional third-party monitoring delays-to enable rapid, precise response when it matters most.
At 3Si, meaningful work makes a difference. We're a purpose-driven team that values innovation, trust, and collaboration. From engineering to sales and support, every role contributes to our mission to protect communities and make the world safer. We offer a hybrid, flexible work culture, competitive benefits, and the chance to grow alongside a team of passionate, dedicated professionals.
Join us-and be part of something that matters. The Junior Software Developer is responsible for participating in technical development, testing, debugging, and implementation of enhancements to enterprise-level applications. The developer is expected to work collaboratively with senior developers and members of the team, contributing to the mission-critical success of our organization. Additionally, you may be tasked with writing Jira tickets, technical user guides, and supporting documentation.
Primary Responsibilities
  • Participate in full software development lifecycle activities, including design, development, testing, debugging, and implementation

  • Design and develop scalable software solutions using C# and .NET

  • Collaborate with other developers and cross-functional teams to ensure technical alignment with project goals

  • Utilize development tools such as Visual Studio, Git, Jira, and

  • Work with technologies including REST/ServiceStack, WPF, Progress/Telerik UI Toolkit

  • Support and maintain client and server utilizing REST and HTTPS protocols

  • Perform other duties as needed to support the company's mission and project requirements

Knowledge, Skills, and Abilities
  • Understanding of full-stack development practices

  • Proficiency in C# and the .NET framework

  • Experience with Windows Presentation Foundation (WPF)

  • Knowledge of software development best practices and secure coding techniques

  • Ability to work with RESTful APIs and HTTP network technologies

  • Skilled in using Visual Studio, Git, and Jira

  • Strong problem-solving and analytical abilities

  • Effective communication and collaboration skills

  • Ability to work independently or within a team environment

Qualifications
  • Bachelor's degree in Computer Science, Information Technology, Software Engineering, or a related technical field

  • Equivalent professional experience may be considered in lieu of formal education

  • Associate degree in a technical discipline combined with relevant experience and/or industry certifications may also be considered

  • 1 year of related software development experience

  • 1 year of hands-on experience in C#/.NET development

  • Experience with reusable C# library development and version-controlled environments

Additional Comments
  • Position on-site in Ashburn, VA.

  • Successful candidates must pass a comprehensive background investigation

  • Pre-employment drug screening is required
  • Comprehensive benefits package including medical, dental, vision, life insurance, short- and long-term disability starting on your first day
  • 401(k) retirement savings plan with company match

Apply