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Sr Software Engineer Jobs in Reston, VA (NOW HIRING)

Bridge Core (BCore)

Senior Software Engineer

Herndon, VA

$126K - $166K/yr

Senior Software Engineer Herndon, VA TS/SCI with Poly At Bcore, our strength comes from how we deliver impact to the mission. Whether it's architecting critical IT solutions, producing actionable ...

Exiger

Senior Software Engineer

Mclean, VA · On-site

$123K - $163K/yr

Senior Software Engineer Location: McLean, VA or Richmond, VA Work Environment: Hybrid Role Summary: As a Senior Software Engineer at Exiger, you will be responsible for designing and developing ...

REDLattice, Inc.

Senior Software Engineer

Chantilly, VA · On-site

$126K - $166K/yr

They are seeking a Senior Software Engineer to support vulnerability research and reverse engineering efforts focused on vehicle-related technologies and systems, contributing to the development and ...

Bridge Core (BCore)

Senior Software Engineer

Herndon, VA · On-site

$126K - $166K/yr

Overview Senior Software Engineer Herndon, VA TS/SCI with Poly At Bcore, our strength comes from how we deliver impact to the mission. Whether it's architecting critical IT solutions, producing ...

Leidos

Senior Software Engineer

Bethesda, MD · On-site

$107K - $195K/yr

Leidos is seeking a TS/SCI cleared Senior Software Engineer to join our mission-driven team. This role supports our client's efforts to design and implement a cutting-edge data-centric architecture ...

Toyon

Senior Software Engineer

Ashburn, VA

$130K - $190K/yr

This position is an opportunity to work on a software engineering team with senior staff members guiding the development of mission-critical planning and decision-support systems for government ...

GDIT

Senior Software Engineer

Falls Church, VA · On-site +1

$111K - $150K/yr

Software Engineer Senior * Executes complex software engineering activities by transforming system design artifacts, user requirements, and mission workflows into scalable software capabilities ...

GDIT

Senior Software Engineer

Falls Church, VA · On-site

$111K - $150K/yr

Software Engineer Senior * Executes complex software engineering activities by transforming system design artifacts, user requirements, and mission workflows into scalable software capabilities ...

Zócalo Health

Senior Software Engineer

Washington, DC

$170K - $180K/yr

Senior Software Engineer Remote (Full Time) This role is open to candidates located on the East Coast. While the role is remote, team members are expected to participate in monthly in-person ...

Mastercard, Inc.

Senior Software Engineer

Arlington, VA · On-site

$140K - $185K/yr

Title and Summary Senior Software Engineer Overview: The Accelerators group within Mastercard's Business & Market Insights (B&MI) Platform Engineering organization is seeking a Senior Software ...

iStrategyLabs

Senior Software Engineer

Washington, DC

$138K - $182K/yr

ISL is looking for a skilled, hard-working Senior Software Engineer to help build amazing experiences for some of the biggest brands in the world. We're a down-to-earth, hardworking team that's not ...

MasterCard

Senior Software Engineer

Arlington, VA · Hybrid

$140K - $185K/yr

Title and Summary Senior Software Engineer Overview: The Accelerators group within Mastercard's Business & Market Insights (B&MI) Platform Engineering organization is seeking a Senior Software ...

iStrategyLabs

Senior Software Engineer

Washington, DC · On-site

$138K - $182K/yr

ISL is looking for a skilled, hard-working Senior Software Engineer to help build amazing experiences for some of the biggest brands in the world. We're a down-to-earth, hardworking team that's not ...

Leidos

Senior Software Engineer

Bethesda, MD · Hybrid

$107K - $195K/yr

Leidos is seeking a TS/SCI cleared Senior Software Engineer to join our mission-driven team. This role supports our client's efforts to design and implement a cutting-edge data-centric architecture ...

Sage

Senior Software Engineer I

Washington, DC · On-site +1

$111K - $128K/yr

Senior Software Engineer I We are looking for a Senior Software Engineer I to design and develop sophisticated solutions that support critical business objectives, with a main focus on the ...

Staffed4U

Senior Software Engineer

Chantilly, VA · On-site +1

$126K - $166K/yr

Senior Software Engineer Location: Chantilly, Virginia Security Clearance: Active TS/SCI with Polygraph Required Job Type: Full-Time Position Overview The selected candidate will provide senior-level ...

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All JobsSr Software Engineer JobsSr Software Engineer Jobs in Reston, VA

Sr Software Engineer information

See Reston, VA salary details

$78.7K

$149.3K

$200.1K

How much do sr software engineer jobs pay per year?

As of Jun 30, 2026, the average yearly pay for sr software engineer in Reston, VA is $149,349.00, according to ZipRecruiter salary data. Most workers in this role earn between $127,700.00 and $168,300.00 per year, depending on experience, location, and employer.

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

To thrive as a Sr Software Engineer, you need advanced programming skills, a strong grasp of software design principles, and typically a degree in computer science or a related field. Expertise with development frameworks, version control systems like Git, and familiarity with cloud platforms or containerization tools is often required. Exceptional problem-solving abilities, clear communication, and leadership skills set top performers apart in collaborative environments. These competencies ensure the efficient delivery of high-quality software solutions and effective mentorship within development teams.

What are some common challenges Sr Software Engineers face when leading technical projects?

Sr Software Engineers often encounter challenges such as balancing hands-on coding with mentoring less experienced team members, managing shifting project requirements, and ensuring timely delivery while maintaining high code quality. They are frequently responsible for making critical architectural decisions and resolving complex technical issues that arise during the development process. Additionally, effective communication with cross-functional teams and stakeholders is key to aligning technical solutions with business goals.

What are Sr Software Engineers?

Sr Software Engineers are experienced professionals who design, develop, and maintain complex software systems. They often lead technical projects, mentor junior team members, and collaborate with stakeholders to ensure software meets business needs. In addition to coding, they are responsible for making architectural decisions, reviewing code, and ensuring best practices are followed. Sr Software Engineers typically have several years of industry experience and deep expertise in specific programming languages or technologies.
What are popular job titles related to Sr Software Engineer jobs in Reston, VA? For Sr Software Engineer jobs in Reston, VA, the most frequently searched job titles are:
What job categories do people searching Sr Software Engineer jobs in Reston, VA look for? The top searched job categories for Sr Software Engineer jobs in Reston, VA are:
What cities near Reston, VA are hiring for Sr Software Engineer jobs? Cities near Reston, VA with the most Sr Software Engineer job openings:
Sr Software Engineer jobs near you
Senior Software Engineer

Senior Software Engineer

Bridge Core (BCore)

Herndon, VA

$126K - $166K/yr

Full-time

Posted 10 days ago

Job description

Senior Software Engineer
Herndon, VA
TS/SCI with Poly
 

At Bcore, our strength comes from how we deliver impact to the mission. Whether it’s architecting critical IT solutions, producing actionable intelligence, or developing cutting edge technology, we succeed because of the expertise, collaboration, and agility of our teams. Our Mission Services division combines enterprise IT, cloud solutions, DevSecOps, systems engineering, software development, and operational support. Bcore accelerates decisive advantage for warfighters and intelligence professionals by fusing human insight, rapid-fire engineering, precision-measured outcomes, and relentless grit into mission-ready solutions. 

Do you want to join a team that is building tailored technical solutions to modernize our government’s mission and our client’s business?  Do you have a desire to change how people work?  Are you interested in helping to protect our nation’s cyber interests? Join our growing team supporting customer missions as a Senior Software Engineer in Herndon, Virginia.


We are seeking a skilled Software Developer with expertise in DevOps to join our technology-based program supporting a key Government customer. The ideal candidate will be responsible for developing and automating our customer’s in support of this customer’s mission, ensuring the smooth operation of all systems within the virtual environment (Nutanix, VMs,) to optimize performance, scalability and automation. 
 
Provides development engineering and programming support to projects and infrastructure support activities. Develops, creates, and modifies general computer applications software or specialized utility programs. Analyzes user needs and develops software solutions. Designs software or customizes software for client use with the aim of optimizing operational efficiency. May analyze and design within an application area, working individually or coordinating development as part of a team.
 
Duties/Tasks and Responsibilities:
 
• Design and develop tools for the Linux, MS Windows, or other relevant operating system platforms
• Design and develop tools that integrate with commercial applications
• Develop unit and functional test plan
• Provide the operations and maintenance of operational systems
• Modify existing software to correct errors, allow it to adapt to new hardware, or to improve its performance
• Analyze user needs and software requirements to determine feasibility of design within time and cost restraints
• Consult with customers about software system design and maintenance
• Coordinate software system installation and monitor equipment functioning to ensure specifications are met
• Develop and direct software system testing and validation procedures, programming, and documentation
• Confer with systems analysts, engineers, programmers and others to obtain information on project limitations and capabilities, performance requirements and interfaces
• Correct errors by making appropriate changes and then recheck the program to ensure that the desired results are produced
• Conduct trial runs of program and software applications to be sure they will produce the desired information and that the instructions are correct
• Compile and write documentation of program development and subsequent revisions, inserting comments in the coded instruction so others can understand the program
• Write, update, and maintain computer programs or software packages to handle specific jobs, such as tracking inventory, storing or receiving data, or controlling other equipment
• Consult with managerial, engineering, and technical personnel to clarify program intent, identify problems, and suggest changes
• Perform or direct revision, repair, or expansion of existing programs to increase operating efficiency or adapt to new requirements
• Write or contribute to instructions or manuals 
• Assign, coordinate, and review work and activities of programming personnel
• Collaborate with internal teams to identify technical requirements and implement solutions that meet business needs
• Provide technical support and guidance to end-users, resolving issues in a timely manner
• Implement best practices for automation, backup, disaster recovery, and system redundancy
• Stay up-to-date with industry trends and advancements in cloud computing and IT systems administration
 
 
 

Required Qualifications:   

  • A Bachelor’s or Master’s degrees are preferred with a minimum of eleven (11) year’s relevant experience with the following skillsets:
  • Serve as part of a software development team to deliver automated solutions for standard network services support of a large IT infrastructure project.
  • Must have hands – on programming and scripting experience in Python with 5 to 7 years of experience with a minimum of 2 years on network automation
  • Must be a self-starter that can lead complex automation projects and guide junior developers
  • Experience operating in a CI/CD/DevOps/Agile fast paced environment
  • Experience in network automation tools Ansible and Cisco Network Services Orchestrator (NSO)
  • Experience with IP Address Management tools such as NetBox
  • Experience in Development of automated testing scripts with integration to a CI/CD pipeline with Python PyATS or similar testing framework and Jenkins
  • Experience in developing data models and understanding of Yang
  • Exposure to Cisco IOS, IOS XR. NX –OS and Junos operating systems desired

Desired Qualifications: 

  • Familiar with network concepts (VLAN, Interfaces, Virtual Chassis, etc)
  • Familiar with configuring docker/podman containers on Linux
  • Familiar with AWS (EC2 and RDS)
  • Familiar with Python to make REST API or Postgres Db calls
  • (desired / nice to have) Familiar with NetBox and/or Forward Networks

BCore is proud to be an equal opportunity workplace. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability status, protected veteran status, sexual orientation or any other characteristic protected by law.

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