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Senior Software Developer Jobs in Leesburg, VA (NOW HIRING)

Synertex LLC

Senior Software Developer

Herndon, VA · On-site

$56 - $74/hr

Senior Software Developer National Capital Region TS/SCI Polygraph | Hybrid (Remote with Occasional On-Site) | Immediate Hire Join Synertex and bring your expertise to a mission that matters. We're ...

Synertex LLC

Senior Software Developer

Herndon, VA · On-site +1

$56 - $74/hr

Senior Software Developer National Capital Region TS/SCI Polygraph | Hybrid (Remote with Occasional On-Site) | Immediate Hire Join Synertex and bring your expertise to a mission that matters. We're ...

Hirekeyz Inc

Senior Software Developer

Fairfax, VA · On-site

$55.75 - $73.50/hr

Role: Senior Software Developer Location: Onsite- Fairfax, VA 3 Days and in Washington, DC 2 Days per Week. Duration: Long Term Contract Position Require a Secret Clearance The Senior Software ...

OpenText

Sr. Software Developer

Gaithersburg, MD · On-site

$124K - $186K/yr

YOUR IMPACT Senior Software Developer role at OpenText is more than just a job, it's an opportunity to impact lives. As a key contributor, you'll be instrumental in designing, developing, and ...

Open Text Inc.

Sr. Software Developer

Gaithersburg, MD

$124K - $186K/yr

YOUR IMPACT Senior Software Developer role at OpenText is more than just a job, it's an opportunity to impact lives. As a key contributor, you'll be instrumental in designing, developing, and ...

VTG

Senior Software Developer

Herndon, VA · On-site

$56 - $74/hr

Overview We are seeking a versatile Senior Software Developer with expertise in secure software engineering. The ideal candidate will combine technical proficiency in development tools and ...

NS2 Mission

Senior Software Developer

Chantilly, VA · On-site

$56.25 - $74.50/hr

We're seeking a Senior Software Developer to join our team in Chantilly, VA , where you'll design, develop, and enhance enterprise Java applications in a collaborative Agile environment. If you're ...

VT Group (VTG)

Senior Software Developer

Herndon, VA · On-site

$56 - $74/hr

VT Group (VTG) is seeking a versatile Senior Software Developer with expertise in secure software engineering. The ideal candidate will work in an agile environment, collaborating with cross ...

Leidos

Sr. Software Developer

Gaithersburg, MD

$87K - $157K/yr

Leidos is seeking a Sr. Software Development Engineer who will be a member of a dynamic team working on the Federal Aviation Administration's En-Route Automation Modernization ERAM) system, which is ...

Leidos

Sr. Software Developer

Gaithersburg, MD · On-site

$87K - $157K/yr

Leidos is seeking a Sr. Software Development Engineer who will be a member of a dynamic team working on the Federal Aviation Administration's En-Route Automation Modernization ERAM) system, which is ...

V2X

Senior Software Developer

Chantilly, VA · On-site

$55.75 - $73.75/hr

We are seeking a TS/SCI with Polygraph cleared Senior Software Developer who will focus on the development and enhancement support for existing applications as well as new development.

Iridium Satellite, LLC

Senior Software Developer

Reston, VA · On-site +1

$57.50 - $76/hr

Join us as a Senior Software Developer and help power the mission systems that keep national security space operations running. In this role, you'll be responsible for identifying and autonomously ...

Iridium Satellite, LLC

Senior Software Developer

Reston, VA · On-site +1

$57.50 - $76/hr

Join us as a Senior Software Developer and help power the mission systems that keep national security space operations running. In this role, you'll be responsible for identifying and autonomously ...

Iridium Satellite, LLC

Senior Software Developer

Reston, VA · On-site

$57.50 - $76/hr

Join us as a Senior Software Developer and help power the mission systems that keep national security space operations running. In this role, you'll be responsible for identifying and autonomously ...

Iridium Satellite, LLC

Senior Software Developer

Reston, VA · On-site +1

$57.50 - $76/hr

Join us as a Senior Software Developer and help power the mission systems that keep national security space operations running. In this role, you'll be responsible for identifying and autonomously ...

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Senior Software Developer information

See Leesburg, VA salary details

$15

$62

$88

How much do senior software developer jobs pay per hour?

As of Aug 8, 2026, the average hourly pay for senior software developer in Leesburg, VA is $62.44, according to ZipRecruiter salary data. Most workers in this role earn between $52.98 and $70.05 per hour, depending on experience, location, and employer.

What skills and qualifications are needed to thrive as a senior software developer?

To thrive as a Senior Software Developer, you need deep expertise in programming languages, software architecture, and problem-solving, typically backed by a bachelor’s degree in computer science or a related field. Proficiency with development frameworks, version control systems like Git, and cloud platforms such as AWS or Azure is standard, and certifications in these areas can be beneficial. Leadership, strong communication, and mentoring abilities set standout candidates apart in this role. These skills ensure that complex projects are delivered efficiently, code quality is maintained, and junior team members are effectively guided for overall team success.

What does a senior software developer do?

As a Senior Software Developer, you’ll typically be responsible for leading complex development projects, designing technical solutions, and mentoring junior team members. Daily tasks often include writing and reviewing code, participating in architecture discussions, collaborating with cross-functional teams (such as QA, product management, and DevOps), and troubleshooting high-level technical issues. You may also be involved in setting coding standards, conducting code reviews, and helping to plan sprints or project roadmaps.

What is a senior software developer?

Senior Software Developers are experienced professionals who design, develop, and maintain complex software applications. They often lead development teams, mentor junior developers, and make critical architectural decisions. Their responsibilities include writing high-quality code, troubleshooting technical issues, and ensuring that software projects meet performance and security standards. With deep expertise in programming languages and software engineering principles, they play a key role in delivering successful technology solutions for organizations.

What is the difference between Senior Software Developer vs Software Engineer?

AspectSenior Software DeveloperSoftware Engineer
CredentialsBachelor's degree in CS or related field; experience often 5+ yearsBachelor's or higher in CS or related field; similar experience levels
Work EnvironmentCollaborates on complex projects, mentors juniors, leads technical effortsDesigns, develops, tests software; may work on specific modules or systems
Industry UsageCommonly used in tech companies, startups, and enterprise firmsWidely used across industries, often interchangeable with developer roles

The main difference is that Senior Software Developers typically have more experience, leadership responsibilities, and focus on complex project oversight, while Software Engineers may focus more on designing and implementing software solutions. Both roles require similar credentials and are integral in software development teams, but Senior Software Developers often take on mentorship and strategic tasks.

More about Senior Software Developer jobs
What are the most commonly searched types of Software Developer jobs in Leesburg, VA? The most popular types of Software Developer jobs in Leesburg, VA are:
What are popular job titles related to Senior Software Developer jobs in Leesburg, VA? For Senior Software Developer jobs in Leesburg, VA, the most frequently searched job titles are:
What job categories do people searching Senior Software Developer jobs in Leesburg, VA look for? The top searched job categories for Senior Software Developer jobs in Leesburg, VA are:
What cities near Leesburg, VA are hiring for Senior Software Developer jobs? Cities near Leesburg, VA with the most Senior Software Developer job openings:
Senior Software Developer jobs near you
Infographic showing various Senior Software Developer job openings in Leesburg, VA as of July 2026, with employment types broken down into 84% Full Time, 13% Part Time, and 3% Contract. Highlights an 88% Physical, 3% Hybrid, and 9% Remote job distribution, with an average salary of $129,873 per year, or $62.4 per hour.

Senior Software Developer

Synertex LLC

Herndon, VA • On-site

$56 - $74/hr

Full-time

Re-posted 8 days ago

Job description

Senior Software Developer
National Capital Region
TS/SCI Polygraph | Hybrid (Remote with Occasional On-Site) | Immediate Hire
Join Synertex and bring your expertise to a mission that matters. We're looking for a Senior Software Developer with a background in full-stack software engineering and distributed systems to support critical defense and intelligence initiatives. If you're passionate about innovating through AI, ML, and big data to support national security and thrive in a collaborative, Agile, and mission-driven role-this opportunity is for you.
RESPONSIBILITIES
  • Design, develop, test, and implement secure, distributed microservices using object-oriented programming languages
  • Collaborate within Agile teams to build scalable, user-centered modules for the MARS program (OB, IMD, S/CS modules)
  • Develop RESTful web services and support implementation/hosting using instancing and throttling models
  • Enhance user interfaces using JavaScript, jQuery, Angular 4, Ajax, and HTML5/XML
  • Write and optimize SQL queries, T-SQL stored procedures, views, and SSIS packages
  • Create technical diagrams, high-quality code, and automated test scripts to support development and integration
  • Partner with product owners and stakeholders to ensure alignment with mission and technical objectives
  • Participate in planning, design, and development discussions to drive continuous improvement
  • Ensure system reliability, uptime, and maintainability through operational excellence
REQUIREMENTS
  • Minimum 5 years of software development experience
  • Bachelor's degree in Computer Science or related discipline
  • Proficiency in object-oriented design, algorithms, and data structures
  • Experience with:
    • REST-style Web API platforms
    • Client-side development (JavaScript, Angular 4, HTML5/XML)
    • SQL/T-SQL, stored procedures, and data integration via SSIS
    • Asynchronous programming, parallel processing, concurrency, and security
    • Software engineering lifecycle best practices
  • Strong collaboration and communication skills
  • Ability to work independently and in Agile environments
  • TS/SCI clearance with CI Polygraph
PREFERRED QUALIFICATIONS
  • Experience supporting DoD or DIA missions
  • Familiarity with the MARS, MIDB, or OB intelligence domains
  • Additional training or certifications in cybersecurity, cloud platforms, or advanced analytics
  • Experience developing solutions for Space/Counterspace or Intelligence Mission Data (IMD) systems

Join a mission-driven team advancing defense intelligence capabilities through scalable data platforms and advanced analytics. Apply today and become part of Synertex's legacy of innovation, leadership, and excellence.
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About Synertex

Sourced by ZipRecruiter

Industry

Guided missile and space vehicle manufacturing

Company size

11 - 50 Employees

Headquarters location

McLean, VA, US

Year founded

2017

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