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Software Development Engineer Intern Jobs in Washington

Markon

Software Development Engineer

Washington, DC · On-site

$120K - $200K/yr

PLEX Solutions, A Part of Markon is looking for Software Development Engineers. This work maybe performed in Arlington, VA, (OR) Herndon, VA (OR) Jessup, MD depending on the location that works best ...

Markon

Software Development Engineer

Washington, DC · On-site

$120K - $200K/yr

Minimum of 7+ years of experience in software development and related engineering experience * Design and develop backend services and APIs in Rust for a cloud-based platform that manages fleet ...

NAVA Software Solutions

SDET Engineer

Merrifield, VA · On-site

NAVA Software solutions is looking for a SDET Engineer Details: SDET Engineer Location : Merrifield, VA(Hybrid) - Weekly once onsite Duration: 12 Months Top 3 Required Skills: * Hands-on development ...

Workday, Inc.

Software Development Engineer

Reston, VA · On-site

We are a fast paced and diverse team of database specialists and software engineers responsible for ... We are looking for individuals who have strong experience in backend development specializing in ...

Workday

Software Development Engineer

Reston, VA · On-site

We are a fast paced and diverse team of database specialists and software engineers responsible for ... We are looking for individuals who have strong experience in backend development specializing in ...

Leidos

Software Developer Intern

Annapolis, MD · On-site

$48K - $86K/yr

Leidos has a new and exciting opportunity for a Software Developer Intern (starting in summer 2027 ... The selected individual(s) will perform software development activities on a large, complex program ...

Leidos

Software Developer Intern

Annapolis Junction, MD · On-site

$48K - $86K/yr

Leidos has a new and exciting opportunity for a Software Developer Intern (starting in summer 2027 ... The selected individual(s) will perform software development activities on a large, complex program ...

Ruri Software Technologies LLC

SDET

Mclean, VA · On-site

$50.50 - $65.25/hr

Job Title: SDET Location: Onsite in McLean, VA Responsibilities • Design, develop, and maintain automation frameworks using Playwright, Selenium, Cucumber, Java, and TypeScript • Execute end-to ...

Deegit Inc

SDET Developer

Silver Spring, MD · On-site

$51.75 - $66.75/hr

Software Development Engineer in Test (SDET) is to develop and execute software test plans in order to identify software problems and their causes. Strong java development skills JavaScript ...

Hexaware Technologies, Inc

Application SDET

Reston, VA · On-site

$52 - $67/hr

Highly experienced Senior SDET (Software Development Engineer in Test) to help deliver test automation across our software development lifecycle. This role is ideal for someone with deep expertise in ...

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All JobsSoftware Development Engineer Intern JobsSoftware Development Engineer Intern Jobs in Washington

Software Development Engineer Intern information

What types of projects do software development engineer interns typically work on, and how much ownership do they have over their work?

As a Software Development Engineer Intern, you will often contribute to real-world projects that may range from feature development and bug fixes to prototyping new tools or improving existing systems. Interns are usually paired with a mentor and integrated into agile teams, where they are encouraged to take ownership of their assigned tasks and present their solutions. While guidance and code reviews are standard, interns are trusted to design, implement, and test their code, allowing for meaningful hands-on experience and a direct impact on product outcomes.

What does a software development engineer intern do?

A Software Development Engineer Intern assists in designing, coding, testing, and maintaining software applications under the guidance of experienced engineers. Interns typically work on real projects, write code, debug issues, and collaborate with team members to learn the software development lifecycle. This role helps interns gain practical experience, improve programming skills, and understand how software teams operate in a professional environment.

What is the difference between Software Development Engineer Intern vs Software Engineer?

AspectSoftware Development Engineer InternSoftware Engineer
CredentialsTypically pursuing or recently completed a bachelor's or master's degree in computer science or related fieldUsually holds a bachelor's degree or higher in computer science or related discipline
Work EnvironmentInternship programs, often part-time or summer roles within tech companiesFull-time employment in software development teams
Employer & Industry UsageUsed across tech companies, startups, and large corporations for entry-level rolesFull-time professional role in similar environments
Common Search & ComparisonOften compared for entry-level experience and career progressionRepresents a standard professional role in software development

The main difference between a Software Development Engineer Intern and a Software Engineer is the experience level and employment status. Interns are typically students gaining practical experience, while Software Engineers are full-time professionals responsible for designing, developing, and maintaining software products.

What are the key skills and qualifications needed to thrive as a software development engineer intern, and why are they important?

To thrive as a Software Development Engineer Intern, you typically need proficiency in programming languages such as Java, Python, or C++, and a solid understanding of computer science fundamentals, often supported by coursework or personal projects. Familiarity with development tools like Git, integrated development environments (IDEs), and sometimes cloud platforms or version control systems is expected. Strong problem-solving abilities, eagerness to learn, and effective communication help interns collaborate and adapt quickly. These skills and qualities enable interns to contribute meaningfully to projects while growing their technical and teamwork abilities in a real-world environment.
What are the most commonly searched types of Software Development Engineer jobs in Washington? The most popular types of Software Development Engineer jobs in Washington are:
What cities in Washington are hiring for Software Development Engineer Intern jobs? Cities in Washington with the most Software Development Engineer Intern job openings:
Software Development Engineer Intern jobs near you
Infographic showing various Software Development Engineer Intern job openings in Washington as of July 2026, with employment types broken down into 1% As Needed, 81% Full Time, 14% Part Time, and 4% Contract. Highlights an 90% Physical, 2% Hybrid, and 8% Remote job distribution.

Software Development Engineer

Markon

Washington, DC • On-site

$120K - $200K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 12 days ago

Job description

PLEX Solutions, A Part of Markon is looking for Software Development Engineers.  This work maybe performed in Arlington, VA, (OR) Herndon, VA (OR) Jessup, MD depending on the location that works best for the candidate.


  • Active TS/SCI W/ Polygraph is required
  • Minimum of 7+ years of experience in software development and related engineering experience
  • Design and develop backend services and APIs in Rust for a cloud-based platform that manages fleet lifecycle operations including provisioning, configuration, monitoring, firmware updates, and policy enforcement across multiple high assurance devices.
  • Architect and implement authentication and authorization frameworks for secure device-to-cloud communication.
  • Demonstrate advanced networking expertise including TCP/IP protocols, routing, subnetting, VPN architectures, load balancing strategies, DNS management, and network security controls such as firewalls, security groups, and network segmentation for secure cloud and on-premises environments.
  • Build highly available, scalable service components for telemetry ingestion, health monitoring, configuration distribution, and alerting across a distributed device fleet.
  • Develop and maintain CI/CD pipelines for automated unit, integration, and end-to-end testing of cloud-to-device interactions.
  • Familiarity with AWS networking services, tools, infrastructure as code and CDK development
  • Experience designing, implementing, and maintaining AWS cloud architectures with a strong understanding of cloud-native design patterns, service integration, and operational best practices.
  • Experience with Rust application development
  • Experience with computer and memory optimized application development

USD $120,000.00 - USD $200,000.00 /Yr.
The Markon pay range for this position is a general guideline only and not a guarantee of compensation or salary. 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.

Eager to join a team where your skills are valued, your growth is nurtured, and your impact is profound? Look no further than Markon, a premier consulting firm deeply dedicated to advancing our nation's most critical missions.

At Markon, we don't just offer jobs – we offer opportunities for personal and professional transformation. Empowering our employees to lead, innovate, and excel, we foster an environment where new ideas are not just welcomed but celebrated. As a perennial Washington Post Top Workplace, we prioritize the well-being and success of our team members, ensuring they can bring their best selves to work.

Headquartered in Falls Church, Virginia, Markon has garnered national recognition for our unwavering dedication to excellence in serving the intelligence community, as well as federal civilian and defense agencies. 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 values people and the tremendous impact each individual can make – which is why we’re consistently recognized as one of the best places to work in federal government consulting. Here, you can help solve the nation’s most important challenges, surrounded by colleagues who help you grow, advance, and succeed. We are deeply dedicated to what matters – bringing out the best in each other to advance our clients’ missions.
Join us and make a meaningful impact.

Markon is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, national origin, age, protected veteran status, or disability status. This job posting will remain open until the position is filled.

Benefits Offered: Medical, Dental, Vision, Life Insurance, Short-Term Disability, Long-Term Disability, 401(k) match, Flexible Spending Accounts, EAP, Training and Tuition Assistance, Paid Time Off, and Holidays.

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