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Sr Software Developer Jobs in Washington (NOW HIRING)

PLEX Solutions, LLC, Part of Markon, is looking for a Sr. Software Developer to support a customer in the Annapolis Junction, MD area. In this role, you will lead complex software engineering efforts ...

Description PLEX Solutions, LLC, Part of Markon, is looking for a Sr. Software Developer to support a customer in the Annapolis Junction, MD area. In this role, you will lead complex software ...

Description PLEX Solutions, LLC, Part of Markon, is looking for a Sr. Software Developer to support a customer in the Annapolis Junction, MD area. In this role, you will lead complex software ...

Senior Software Developer

Mclean, VA · On-site

$150K - $175K/yr

Radiance isseeking a Senior Software & Systems Engineer to lead the design, development, and deployment ofGeospatial evaluation software. This initiative aims to build a scalable, repeatable, and ...

Senior Software Developer

Quantico, VA · On-site

$150K - $170K/yr

Everforth ECS is seeking a Senior Software Developer to work in Quantico, VA . General Description: Are you ready to play crucial role in supporting cutting-edge technology for federal law ...

Senior Software Developer

Mclean, VA · On-site

$150K - $175K/yr

Radiance is seeking a Senior Software & Systems Engineer to lead the design, development, and deployment of Geospatial evaluation software. This initiative aims to build a scalable, repeatable, and ...

Senior Software Developer

Washington, DC · On-site

$147K - $195K/yr

As a Senior Software Developer , you will play a key role in designing, developing, and maintaining enterprise applications and web-based solutions that drive operational effectiveness for our ...

Senior Software Developer

Arlington, VA · On-site

$147K - $195K/yr

As a Senior Software Developer , you will play a key role in designing, developing, and maintaining enterprise applications and web-based solutions that drive operational effectiveness for our ...

New

Sr. Software Developer

Gaithersburg, MD · On-site

$59.50 - $78.50/hr

Overview 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 ...

Senior Software Developer Job Category: Information Technology Time Type: Part time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: Part-Time On-Call Percentage of Travel ...

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 ...

Showing results 41-60

Sr Software Developer information

See Washington salary details

$17

$69

$99

How much do sr software developer jobs pay per hour?

As of Sep 12, 2026, the average hourly pay for sr software developer in Washington is $69.92, according to ZipRecruiter salary data. Most workers in this role earn between $59.38 and $78.41 per hour, depending on experience, location, and employer.

What is a Sr software developer?

Sr Software Developers are experienced professionals responsible for designing, developing, and maintaining complex software applications. They typically lead technical teams, make architectural decisions, and mentor junior developers. Their role often involves collaborating with stakeholders to define requirements, ensuring code quality, and staying updated with emerging technologies. Senior developers play a crucial part in the software development lifecycle, helping to deliver robust and scalable solutions.

What are the key skills and qualifications needed to thrive as a Sr software developer?

To thrive as a Sr Software Developer, you need advanced proficiency in programming languages (such as Java, Python, or C#), software architecture, and a bachelor's or master’s degree in computer science or a related field. Familiarity with development tools like Git, integrated development environments (IDEs), cloud platforms, and relevant certifications (e.g., AWS Certified Developer) are typically expected. Strong problem-solving, leadership, collaboration, and communication skills help you mentor junior developers and work effectively within teams. These abilities are crucial to building robust software solutions, driving technical excellence, and ensuring successful project delivery.

What are some typical challenges Sr software developers face when leading project teams, and how can they effectively manage them?

Sr Software Developers often encounter challenges such as balancing coding responsibilities with mentoring junior team members, aligning technical solutions with business goals, and managing project timelines across cross-functional teams. Effective management involves clear communication, setting realistic expectations, and fostering a collaborative environment where team members can share ideas and resolve issues quickly. Leveraging agile methodologies and regular code reviews can also help maintain project momentum and ensure high-quality deliverables.

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

AspectSr Software DeveloperSoftware Engineer
Required CredentialsBachelor's degree in CS or related field; experience often preferredBachelor's or higher in CS or related field; certifications optional
Work EnvironmentDevelops software, collaborates with teams, and mentors junior staffDesigns, develops, tests, and maintains software applications
Employer & Industry UsageUsed across tech companies, startups, and enterprise firmsCommon in software development firms, tech companies, and IT departments

Both roles involve software development, but Sr Software Developers typically have more experience, leadership responsibilities, and mentorship duties. Software Engineers focus on designing and building software solutions, often with a broader scope. The roles overlap significantly, but the seniority and leadership aspect distinguish the Sr Software Developer from a general Software Engineer.

What do senior software developers do?

Senior software developers design, develop, and maintain software applications, often leading projects and mentoring junior team members. They analyze requirements, write code, perform testing, and ensure the quality and performance of software systems, typically using programming languages like Java, Python, or C++. They also collaborate with stakeholders and may oversee technical architecture and code reviews.

What cities in Washington are hiring for Sr Software Developer jobs?

Cities in Washington with the most Sr Software Developer job openings:

Infographic showing various Sr Software Developer job openings in Washington as of August 2026, with employment types broken down into 86% Full Time, 9% Part Time, and 5% Contract. Highlights an 85% Physical, 3% Hybrid, and 12% Remote job distribution, with an average salary of $145,425 per year, or $69.9 per hour.

Senior Software Developer, Systems Software

Arlington, VA • On-site

$62.75 - $83/hr

Full-time

Posted 18 days ago


Job description

DecisionPoint Corporation is seeking an experienced Senior Software Developer, Systems Software to support the Department of Homeland Security (DHS), Cybersecurity and Infrastructure Security Agency (CISA), Critical Infrastructure Information Sharing Environment (CI-ISE) and Homeland Security Information Network-Critical Infrastructure (HSIN-CI) Program Support Services. 

The Senior Software Developer will support the development, maintenance, configuration, integration, optimization, and continued stabilization of CISA's Drupal-based collaboration environment. The position will contribute to platform modernization and capability expansion while supporting secure information sharing across critical infrastructure, cybersecurity, emergency services, and other mission communities. 

The successful candidate will bring deep Drupal development expertise and experience supporting secure, scalable Federal web or platform environments. 

This position is hybrid in Arlington, Virginia. 

Note: By applying to this position, you acknowledge and consent to having your resume included in an active competitive Government contract bid. 


The Senior Software Developer, Systems Software will: 

  • Support development and maintenance of the Drupal-based HSIN-CI platform.  
  • Perform Drupal architecture, module development, configuration, and platform enhancement activities.  
  • Support content and information governance capabilities across supported mission spaces.  
  • Develop and maintain secure platform capabilities supporting SBU/FOUO information.  
  • Support API integrations and content management frameworks.  
  • Optimize platform performance, reliability, and scalability.  
  • Support Government-directed platform enhancements, integrations, modernization activities, and future capability expansion.  
  • Participate in Agile, DevSecOps/SecDevOps, and CI/CD processes for platform updates and releases.  
  • Support remediation of platform issues and implementation of corrective actions.  
  • Coordinate with systems engineering, platform administration, content governance, UI/UX, and other technical personnel.  
  • Develop and maintain technical documentation supporting platform operations and enhancements.  
  • Ensure development activities comply with applicable DHS security, accessibility, and information-management requirements.  

Clearance Requirement 

  • Must be able to obtain and maintain DHS Suitability 

Education 

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

Experience 

  • Minimum of eight years of experience in web or platform development  
  • Minimum of three years of experience developing and managing Drupal-based platforms  

Certifications 

  • Active Drupal certification or Government-approved equivalent credential (required)  

Required Knowledge, Skills, and Abilities (KSAs) 

  • Drupal architecture, module development, and configuration  
  • Secure platform design within SBU/FOUO environments  
  • API integration and content management frameworks  
  • Platform performance optimization and scalability 

  • EEO and Affirmative Action Policy: DecisionPoint Corporation is an Equal Employment Opportunity and Affirmative Action employer. It is the policy of DecisionPoint Corporation to provide equal employment opportunity in accordance with all applicable Equal Employment Opportunity/Affirmative Action laws, directives and regulations to all employees and qualified applicants without regard to race, ethnicity, color, religion, national origin, sex, age, disability status, pregnancy, sexual orientation, gender identity, genetic information, protected veteran status, or any other protected status under Federal, State or Local laws.
  • Pay Transparency Policy: In accordance with Presidential Executive Order 13665, DecisionPoint Corporation will not discharge or in any other manner discriminate against employees or applicants because they have inquired about, discussed, or disclosed their own pay or the pay of another employee or applicant. However, employees who have access to the compensation information of other employees or applicants as a part of their essential job functions cannot disclose the pay of other employees or applicants to individuals who do not otherwise have access to compensation information, unless the disclosure is (a) in response to a formal complaint or charge, (b) in furtherance of an investigation, proceeding, hearing, or action, including an investigation conducted by the employer, or (c) consistent with the contract