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Sr Software Jobs in Washington (NOW HIRING)

ECS

Senior Software Developer

Washington, DC · On-site

$141K - $156K/yr

Everforth ECS Federal is seeking a Senior Software Developer to support a mission-focused federal IT program in Washington DC . Please Note: This position is contingent upon contract award. Salary ...

Deloitte

Senior Software Engineer with Secret

Arlington, VA · On-site

$140K - $185K/yr

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Deloitte

Senior Software Engineer with Secret

Arlington, VA · On-site

$140K - $185K/yr

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Gridpoint

Senior Software Engineer

Reston, VA · On-site

$127K - $168K/yr

The Senior Software Engineer shall perform with a high degree of independence and expertise to implement solutions for a variety of complex software products/features... both wholly new efforts and ...

Gridpoint

Senior Software Engineer

Reston, VA · On-site

$100 - $130/hr

The Senior Software Engineer shall perform with a high degree of independence and expertise to implement solutions for a variety of complex software products/features... both wholly new efforts and ...

Gridpoint

Senior Software Engineer

Reston, VA · On-site

$127K - $168K/yr

The Senior Software Engineer shall perform with a high degree of independence and expertise to implement solutions for a variety of complex software products/features... both wholly new efforts and ...

Wrenchio LLC

Senior Software Engineer

Annapolis Junction, MD · On-site

$134K - $177K/yr

The role of Sr. Software Engineer includes developing, maintaining, and enhancing software systems in accordance with project requirements. Works effectively both independently and collaboratively ...

PEMCCO

Senior Software Engineer

Washington, DC · On-site

$142.33 - $234.85/hr

PEMCCO is seeking a Senior Software Engineer to provide technical leadership in the design, development, integration, testing, and sustainment of software applications and systems supporting critical ...

PEMCCO, Inc.

Senior Software Engineer

Washington, DC · On-site

$68.43 - $112.91/hr

PEMCCO is seeking a Senior Software Engineer to provide technical leadership in the design, development, integration, testing, and sustainment of software applications and systems supporting critical ...

Vidoori

Senior Software Developer

Hyattsville, MD · On-site

$54.75 - $72.25/hr

Role Overview - Senior Software Developer Reporting to engineering leadership, the Senior Software Developer will be a core contributor to one or more product squads or platform teams. This role ...

Systek

Senior Software Engineer

Hanover, MD · On-site

$90 - $140K/hr

SENIOR SOFTWARE ENGINEER The company is seeking a Senior Software Engineer to provide SETA support in Hanover, MD. RESPONSIBILITIES * Design, develop and install software solutions. * Build high ...

PEMCCO, Inc.

Senior Software Engineer

Washington, DC

$68.43 - $112.91/hr

PEMCCO is seeking a Senior Software Engineer to provide technical leadership in the design, development, integration, testing, and sustainment of software applications and systems supporting critical ...

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Sr Software information

What are the key skills and qualifications needed to thrive as a senior software engineer?

To thrive as a Senior Software Engineer, you need strong proficiency in programming languages (such as Java, Python, or C#), software architecture, and a bachelor’s degree in computer science or a related field. Expertise with development frameworks, version control systems like Git, and cloud platforms such as AWS or Azure is commonly required, along with certifications like AWS Certified Solutions Architect. Leadership, problem-solving, and effective communication skills help you mentor junior engineers and collaborate across teams. These skills ensure the delivery of robust, scalable solutions and foster innovation within complex technical environments.

What is the difference between Sr Software and Software Developer?

AspectSr SoftwareSoftware Developer
Required CredentialsBachelor's degree in CS or related field; 3+ years experience; sometimes certificationsBachelor's degree in CS or related field; 0-3 years experience; certifications optional
Work EnvironmentOften leads projects, mentors juniors, involved in architecture decisionsFocuses on coding, debugging, and implementing features under guidance
Employer & Industry UsageUsed across tech companies, startups, and enterprise firms for senior rolesCommon entry to mid-level role in software development teams

The main difference between a Sr Software and a Software Developer lies in experience, responsibilities, and leadership. Sr Software professionals typically have more experience, take on leadership roles, and influence project architecture, while Software Developers focus on coding and implementing features. Both roles require a strong foundation in programming, but the Sr Software position involves greater oversight and strategic input.

What does a senior software engineer do?

A Sr Software Engineer is responsible for designing, developing, and maintaining complex software applications. They often lead technical projects, mentor junior team members, and collaborate closely with stakeholders to ensure software meets business objectives. Their role typically involves writing high-quality code, reviewing code from peers, and making architectural decisions. Sr Software Engineers are also expected to stay updated with industry trends and best practices to improve software performance and reliability.

What are some common challenges faced by senior software engineers when leading project teams, and how can they effectively overcome them?

Senior Software Engineers often encounter challenges such as balancing hands-on coding with mentoring less experienced team members, managing project timelines, and ensuring code quality across the team. Effective communication and proactive planning are key to overcoming these hurdles. By fostering a collaborative environment, setting clear expectations, and leveraging agile methodologies, Senior Software Engineers can guide their teams to successful project delivery while supporting professional growth within the team.
What cities in Washington are hiring for Sr Software jobs? Cities in Washington with the most Sr Software job openings:
Sr Software jobs near you
Infographic showing various Sr Software job openings in Washington as of August 2026, with employment types broken down into 88% Full Time, 8% Part Time, and 4% Contract. Highlights an 88% Physical, 3% Hybrid, and 9% Remote job distribution.

Senior Software Developer

ECS

Washington, DC • On-site

$141K - $156K/yr

Full-time

Re-posted 27 days ago

Job description

Everforth ECS Federal is seeking a Senior Software Developer to support a mission-focused federal IT program in Washington DC.
Please Note: This position is contingent upon contract award.
Salary Range: $141,000 - $156,000
Join Everforth ECS Federal to build and modernize applications that support key federal law enforcement and national security missions. You will work in a collaborative environment where secure software delivery has direct mission impact and where modern development practices help strengthen mission performance, usability, and operational effectiveness.
The Senior Software Developer will develop, test, secure, integrate, and maintain enterprise applications using modern programming languages, frameworks, APIs, and CI/CD practices. This role provides senior-level application development support for mission systems operating in secure federal environments.
The Senior Software Developer will design, code, test, debug, integrate APIs, support CI/CD pipelines, perform code reviews, resolve production issues, and apply secure coding practices throughout the software development lifecycle. This position will work closely with product owners, business analysts, QA engineers, cybersecurity teams, DevSecOps personnel, and customer stakeholders to deliver reliable, secure, and mission-aligned software solutions.
This role requires a hands-on senior technical professional with experience developing enterprise applications, supporting Agile or DevSecOps delivery, troubleshooting application issues, and maintaining secure, high-quality code. The ideal candidate will bring strong problem-solving skills, technical judgment, documentation discipline, and the ability to collaborate across technical and mission teams in a classified or sensitive federal IT environment.
  • Minimum 7 years software development experience
  • Java, .NET, Python, JavaScript, or similar experience
  • Experience with source control and software lifecycle practices.

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