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Senior Software Developer Jobs in Gainesville, VA

Amentum

Sr. Software Developer

Chantilly, VA · On-site

$55.75 - $73.75/hr

We are seeking a talented and experienced Senior Software Engineer to join our dynamic team. The ideal candidate will have over 10 years of software development experience with a strong background in ...

Leidos

Senior Software Developer

Ashburn, VA · On-site

$107K - $195K/yr

Leidos is seeking Senior Software Developers to join the Air Traffic Business Area within the Homeland Sector, supporting the development of next-generation flight service and air traffic systems.

CACI

.NET Software Developer, Senior

Springfield, VA · On-site

$57 - $75.25/hr

Job Title: .NET Software Developer, Senior Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI Employee Type: Regular Percentage of Travel Required:

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.

Apptium Technologies

Be Seen First

Senior Software Developer

Reston, VA · On-site

$120K - $145K/yr

*This is an ON-SITE position at our Reston, VA office Technologies is looking to hire a Senior Software Developer to become an integral part of the team! You will be part of a talented software team ...

Via Logic LLC

Senior Software Developer

Chantilly, VA · On-site

$125 - $150/hr

As a Software Developer you will design, develop, and implement reliable, robust, and resilient code for systems used by the sponsor. Demonstratable working experience with development tools (e.g ...

Tier4 Group

Senior Software Developer

Reston, VA · On-site

$56.75 - $75/hr

UMMARY OF POSITION The Software Engineer will bring a strong technical and analytical mindset required to transform the current suite of applications in use into modern APIs and services. A ...

VTG

Senior Software Developer

Chantilly, VA · On-site

$56.25 - $74.50/hr

Overview VTG is seeking a Software Developer for a 200+ FTE technical development program supporting the Sponsor's Entitlement Programs as well as IdAM /ICAM, Authentication, Authorization ...

VTG

Senior Software Developer

Chantilly, VA · On-site

$56.25 - $74.50/hr

Overview VTG is seeking a Software Developer for a 200+ FTE technical development program supporting the Sponsor's Entitlement Programs as well as IdAM /ICAM, Authentication, Authorization ...

VTG

Senior Software Developer

Reston, VA · On-site

$140K - $195K/yr

Overview VTG is seeking a Software Developer to design, develop, troubleshoot, and debug complex software applications for our customer in the Northern Virginia area. What will you do? * Committed to ...

Noblis

Senior Software Developer

Reston, VA · On-site

$57.50 - $76/hr

As a Software Developer on our team, you will collaborate with federal clients to rapidly design, develop, and deliver innovative solutions that address their most pressing mission challenges. You ...

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All JobsSoftware Developer JobsSenior Software Developer JobsSenior Software Developer Jobs in Gainesville, VA

Senior Software Developer information

See Gainesville, VA salary details

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How much do senior software developer jobs pay per hour?

As of Sep 8, 2026, the average hourly pay for senior software developer in Gainesville, VA is $60.95, according to ZipRecruiter salary data. Most workers in this role earn between $51.73 and $68.37 per hour, depending on experience, location, and employer.

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 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 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 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 Gainesville, VA?

The most popular types of Software Developer jobs in Gainesville, VA are:

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For Senior Software Developer jobs in Gainesville, VA, the most frequently searched job titles are:

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Senior Software Developer jobs near you
Infographic showing various Senior Software Developer job openings in Gainesville, VA as of August 2026, with employment types broken down into 83% Full Time, 13% Part Time, and 4% Contract. Highlights an 83% Physical, 5% Hybrid, and 12% Remote job distribution, with an average salary of $126,780 per year, or $61 per hour.

Sr. Software Developer

Amentum

Chantilly, VA • On-site

$55.75 - $73.75/hr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 4 days ago

Job description

Purpose and Impact:
We are seeking a talented and experienced Senior Software Engineer to join our dynamic team. The ideal candidate will have over 10 years of software development experience with a strong background in cloud technologies and development, information systems, and service-oriented architectures. The role requires proficiency in full-stack development, database design, DevOps, and the ability to migrate and modernize legacy applications to the cloud.
Work Schedule: M- F 40 hours a week
Essential Responsibilities:
  • Design and develop software solutions, employing technologies such as Python, NodeJS, Angular, JavaScript, C#, SQL Server, Microsoft Windows Server, and Linux.
  • Deploying, maintaining, and troubleshooting EKS clusters, ensuring high availability and performance for applications.
  • Deploying and orchestrating workloads on Kubernetes, utilizing deployment strategies like rolling updates and canary releases.
  • Implementing and managing cloud infrastructure using IaC tools like AWS CloudFormation or CDK.
  • Designing and building CI/CD pipelines (using tools like Jenkins, GitHub Actions, or ArgoCD) for seamless and automated application delivery to EKS clusters.
  • Integrating observability tools such as Prometheus, Grafana, Datadog, or Amazon CloudWatch to monitor application and cluster performance, troubleshoot complex issues, and optimize costs.
  • Implementing robust security frameworks, including IAM roles, Kubernetes RBAC policies, and vulnerability scanning solutions.
  • Work with Jira and Confluence for agile management.
  • Research, prototype, and recommend improvements to existing systems and architectures.
  • Troubleshoot and resolve complex software, performance, and infrastructure issues.
  • Research and adopt emerging technologies to enhance system efficiency.

Other Responsibilities:
Safety - Amentum enforces a safety culture whereby all employees have the responsibility for continuously developing and maintaining a safe work environment. As appropriate, each employee is responsible for completing all training requirements and fulfilling all self-aid/buddy aid responsibilities, participating in emergency response tasks and serving on safety committees and teams.
Quality - Quality is the foundation for the management of our business and the keystone to our goal of customer satisfaction. It is our policy to consistently provide services that meet customer expectations. Accordingly, each employee must conform to the Amentum Quality Policy and carry out job activities in compliance with applicable Amentum Quality System documents and customer contracts. Each employee must read and understand his/her Quality Management and Customer Satisfaction responsibilities.
Procedure Compliance - Each employee must read, understand and implement the general and specific operational, safety, quality and environmental requirements of all plans, procedures and policies pertaining to his/her job.
Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, sexual orientation, gender identity, disability or protected veteran status.
As part of our commitment to maintaining a safe and compliant work environment, Amentum is a drug-free workplace and requires all personnel to comply with company drug and alcohol policies as a condition of employment. Employment is contingent upon successful completion of the drug screening process. Please note that this may include pre-hire screening for marijuana, as well as other federally controlled substances due to Amentum's role as a federal contractor and trusted partner to the US Government.
Minimum Requirements (Knowledge, Skills, and Abilities):
  • Over 10 years of hands-on software development experience.
  • Hands-on experience with secure systems engineering, systems integration, and reverse engineering.
  • Proficiency in programming languages (at least two): Python, NodeJS, Angular, JavaScript, C#, SQL.
  • Experience with cloud technologies. Experience working with tools like JIRA, Confluence, Splunk, and diagramming applications.
  • Strong skills in debugging, performance optimization, and DevOps practices.
  • Background in on-call support and operational monitoring of critical systems.

Clearance Required:
  • TS/SCI with Poly

Minimum Education:
  • Bachelor's degree in Computer Science, Design, or related field (or equivalent experience).

Minimum Years of Experience:
  • 10

Preferred Qualifications:
  • Experience with design systems and component libraries.
  • Experience with AWS.
  • Experience with EKS or other container orchestration software.
  • Excellent technical writing and documentation skills.
  • Experience in collaborating with multidisciplinary teams.
  • Familiarity with high-availability systems and secure communications.

#javelin
Compensation Details:
$190,000 to $220,000
The compensation range or hourly rate listed for this position is provided as a good-faith estimate of what the company intends to offer for this role at the time this posting was issued. Actual compensation may vary based on factors such as job responsibilities, education, experience, skills, internal equity, market data, applicable collective bargaining agreements, and relevant laws.
Benefits Overview:
Our health and welfare benefits are designed to support you and your priorities. Offerings include:
  • Health, dental, and vision insurance
  • Paid time off and holidays
  • Retirement benefits (including 401(k) matching)
  • Educational reimbursement
  • Parental leave
  • Employee stock purchase plan
  • Tax-saving options
  • Disability and life insurance
  • Pet insurance

Note: Benefits may vary based on employment type, location, and applicable agreements. Positions governed by a Collective Bargaining Agreement (CBA), the McNamara-O'Hara Service Contract Act (SCA), or other employment contracts may include different provisions/benefits.
Original Posting:
03/06/2026 - Until Filled
Amentum anticipates this job requisition will remain open for at least three days, with a closing date no earlier than three days after the original posting. This timeline may change based on business needs.
Amentum is proud to be an Equal Opportunity Employer. Our hiring practices provide equal opportunity for employment without regard to race, sex, sexual orientation, pregnancy (including pregnancy, childbirth, breastfeeding, or medical conditions related to pregnancy, childbirth, or breastfeeding), age, ancestry, United States military or veteran status, color, religion, creed, marital or domestic partner status, medical condition, genetic information, national origin, citizenship status, low-income status, or mental or physical disability so long as the essential functions of the job can be performed with or without reasonable accommodation, or any other protected category under federal, state, or local law. Learn more about your rights under Federal laws and supplemental language at Labor Laws Posters.

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