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Senior Software Developer Jobs in Maryland (NOW HIRING)

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 ...

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 ...

Senior Software Developer

Bethesda, MD · Hybrid

$90K - $130K/yr

Description Spatial Front, Inc. (SFI), a two-time USAToday Top Workplaces awardee and Washington Top Workplaces honoree, is seeking a Senior Software Developer to support our growing team. In this ...

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 ...

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 ...

Senior Software Developer (MLOps)

Aberdeen, MD · On-site

$58.50 - $77.50/hr

Parsons is seeking a Senior Software Developer to support our cutting-edge Drone Armor counter-unmanned aerial systems (C-UAS) program. The Senior Developer will design and implement logical ...

Senior Software Developer (NLP)

Aberdeen, MD · On-site

$58.50 - $77.50/hr

Parsons is seeking a Senior Software Developer to support our cutting-edge Drone Armor counter-unmanned aerial systems (C-UAS) program. The Senior Developer will design and implement logical ...

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.

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.

Showing results 21-40

Senior Software Developer information

See Maryland salary details

$14

$59

$85

How much do senior software developer jobs pay per hour?

As of Aug 8, 2026, the average hourly pay for senior software developer in Maryland is $59.91, according to ZipRecruiter salary data. Most workers in this role earn between $50.87 and $67.21 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.

What are the most commonly searched types of Software Developer jobs in Maryland? The most popular types of Software Developer jobs in Maryland are:
What cities in Maryland are hiring for Senior Software Developer jobs? Cities in Maryland with the most Senior Software Developer job openings:
What are popular job titles related to Senior Software Developer jobs in MD? For Senior Software Developer jobs in MD, the most frequently searched job titles are:
Infographic showing various Senior Software Developer job openings in Maryland as of July 2026, with employment types broken down into 86% Full Time, 10% Part Time, and 4% Contract. Highlights an 88% Physical, 3% Hybrid, and 9% Remote job distribution, with an average salary of $124,617 per year, or $59.9 per hour.

Senior Software Developer

Markon

Annapolis Junction, MD

$195K - $220K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted yesterday


Job description

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 engineering efforts, apply advanced technical principles, and contribute innovative solutions that support critical hardware and technical service products.

Responsibilities
  • Develop, create, and modify general computer applications software or specialized utility programs.
  • Analyze user needs and develop software solutions.
  • Design software or customize software for client use with the aim of optimizing operational efficiency.
  • May analyze and design databases within an application area, working individually or coordinating database development as part of a team.
  • May supervise computer programmers.
  • Inspects, cleans, transforms, and models data to highlight useful information, suggest conclusions, and support decision making.
  • Develops software planning documentation, requirements and design documentation, support documentation, test description documentation.
  • Conducts software validation and verification, and software engineering anomaly resolution.
  • Performs tasks in accordance with applicable DoD guidance and industry standards.
  • Performs installation, demonstration, test, validation and evaluation of software tools, methods, and measurement technologies.
  • Performs computer network exploitation development.
  • Evaluates the quality of software systems and solutions.
  • Performs needs and risk analysis of software packages relative to mission requirements.
  • Develops, updates, and evaluates software engineering standards, specifications, handbooks, or manuals for the development and testing of cyber capabilities.
  • Documents verification and validation of solutions and protocols, and provides technical assistance to user organizations on software acquisition.
  • Develops life cycle models and customizes software analytical tools, models, decision aids, screening methods, and techniques used to evaluate and support the authenticity and continuity of information systems.
  • Develops specialized software/firmware modules.
  • Disassembles and analyzes software and embedded firmware.
  • Collaborates with Cyber Innovation Unit.
  • Develops, creates, and modifies general computer applications software or specialized utility programs.
Qualifications
  • Active TS/SCI W/ Polygraph
  • 15+ years of related professional experience in a technical engineering discipline
  • Bachelor's degree in Computer Science, Computer Engineering, or related technical field
  • Proven ability to lead a project team
  • Strong command of advanced engineering principles and software development theories
  • Excellent written and oral communication skills
  • Ability to troubleshoot production issues under pressure and tight deadlines
  • Proficiency developing software in one or more operating environments (Windows, Linux, etc.)
  • Proficiency with Microsoft Office applications
  • Excellent time management and organizational abilities

    Preferred Qualifications:

  •  Master's degree preferred
Salary RangeUSD $195,000.00 - USD $220,000.00 /Yr.The Markon pay range for this position is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.Overview

Eager to join a team where your skills are valued, your growth is nurtured, and your impact is profound? Look no further than Markon, a premier consulting firm deeply dedicated to advancing our nation's most critical missions.

At Markon, we don't just offer jobs - we offer opportunities for personal and professional transformation. Empowering our employees to lead, innovate, and excel, we foster an environment where new ideas are not just welcomed but celebrated. As a perennial Washington Post Top Workplace, we prioritize the well-being and success of our team members, ensuring they can bring their best selves to work.

Headquartered in Falls Church, Virginia, Markon has garnered national recognition for our unwavering dedication to excellence in serving the intelligence community, as well as federal civilian and defense agencies. Our growing reach extends across 17 states, 116 countries, and 5 continents, where our team of dynamic professionals collaborates to deliver unparalleled program and project management services.

Markon values people and the tremendous impact each individual can make - which is why we're consistently recognized as one of the best places to work in federal government consulting. Here, you can help solve the nation's most important challenges, surrounded by colleagues who help you grow, advance, and succeed. We are deeply dedicated to what matters - bringing out the best in each other to advance our clients' missions.Join us and make a meaningful impact.

Markon is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, national origin, age, protected veteran status, or disability status. This job posting will remain open until the position is filled.

Benefits Offered: Medical, Dental, Vision, Life Insurance, Short-Term Disability, Long-Term Disability, 401(k) match, Flexible Spending Accounts, EAP, Training and Tuition Assistance, Paid Time Off, and Holidays.

Employment Type: FULL_TIME