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Senior Applications Developer Jobs in Maryland (NOW HIRING)

Peraton

Senior Applications Developer

Germantown, MD · On-site

$97K - $133K/yr

They are seeking a Senior Applications Developer to build, enhance, and maintain custom enterprise solutions, lead migrations, and provide technical mentorship to the team. Responsibilities : • ...

InterImage

$106K - $146K/yr

InterImage is seeking a highly experienced Senior Applications Developer to support the Joint Operation Planning and Execution System (JOPES). This position provides senior-level technical and ...

Peraton

Senior Applications Developer

Germantown, MD · On-site

$97K - $133K/yr

Provide technical mentorship, guidance, and subject matter expertise to junior and mid-level developers on the team * Modernize and re-platform applications written in legacy technologies to current ...

Peraton

Senior Applications Developer

Germantown, MD · On-site

$135K - $216K/yr

Provide technical mentorship, guidance, and subject matter expertise to junior and mid-level developers on the team * Modernize and re-platform applications written in legacy technologies to current ...

Peraton

Senior Applications Developer

Germantown, MD

$97K - $133K/yr

Provide technical mentorship, guidance, and subject matter expertise to junior and mid-level developers on the team * Modernize and re-platform applications written in legacy technologies to current ...

InterImage

InterImage is seeking a highly experienced Senior Applications Developer. This position provides senior-level technical and functional expertise supporting joint force deployment planning and ...

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Senior Applications Developer information

See Maryland salary details

$52.4K

$111.5K

$154.8K

How much do senior applications developer jobs pay per year?

As of Aug 13, 2026, the average yearly pay for senior applications developer in Maryland is $111,520.00, according to ZipRecruiter salary data. Most workers in this role earn between $93,200.00 and $128,100.00 per year, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a senior applications developer?

A Senior Applications Developer needs advanced programming skills, strong problem-solving abilities, and typically a bachelor's degree in computer science or a related field. Expertise in languages like Java, C#, or Python, along with experience using frameworks, version control systems like Git, and cloud platforms such as AWS or Azure, is crucial. Excellent communication, leadership, and project management skills help in mentoring junior developers and collaborating with cross-functional teams. These skills ensure robust, scalable solutions are delivered efficiently while fostering innovation and team productivity.

What does a senior applications developer do?

A Senior Applications Developer is responsible for designing, developing, and maintaining complex software applications. They often lead projects, collaborate with cross-functional teams, and ensure that applications meet both business requirements and technical standards. In addition to coding, they may mentor junior developers, review code for quality, and help implement best practices in software development. Their expertise allows them to troubleshoot complex issues and contribute to the strategic direction of software projects.

How does a senior applications developer typically collaborate with other teams during a project?

Senior Applications Developers play a pivotal role in cross-functional collaboration. They often work closely with business analysts to refine requirements, partner with QA teams to ensure robust testing, and coordinate with DevOps or infrastructure specialists to streamline deployment. Regular communication with project managers and stakeholders is also common to keep projects aligned with business goals. This collaborative environment helps ensure that applications are both technically sound and aligned with user needs.

What are the most commonly searched types of Applications Developer jobs in Maryland?

The most popular types of Applications Developer jobs in Maryland are:

What cities in Maryland are hiring for Senior Applications Developer jobs?

Cities in Maryland with the most Senior Applications Developer job openings:

Infographic showing various Senior Applications Developer job openings in Maryland as of August 2026, with employment types broken down into 1% Internship, 72% Full Time, 23% Part Time, 1% Temporary, and 3% Contract. Highlights an 88% Physical, 3% Hybrid, and 9% Remote job distribution, with an average salary of $111,520 per year, or $53.6 per hour.

Senior Applications Developer (Government)

AT and T

Columbia, MD • On-site

$98K - $180K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 27 days ago

AT&T rating

7.3

Company rating: 7.3 out of 10

Based on 729 frontline employees who took The Breakroom Quiz

52nd of 98 rated telecommunications companies

Job description

This position requires office presence of a minimum of 5 days per week and is only located at customer's site.
AT&T Global Public Sector is a trusted provider of secure, IP enabled, cloud-based, network solutions and professional services to the Federal Government. We are dedicated to recruiting, developing and empowering a diverse, high-performing workforce that is passionate about what they do, committed to our shared values and dedicated to our customers' mission.
Our National Security team supports our Federal Government by providing, operating and assuring critical voice, video and collaboration services for the full spectrum of national security operations.
AT&T has an opening for a Senior Applications Developer to support the day-to-day IT systems for our customized network solution in support of the federal government.
Job Duties/Responsibilities:
This individual is a key member of the Applications Development team and is responsible for implementing the ServiceNow application to include, at a minimum, the ServiceNow IT Service Management suite and the platform. This individual works alongside supporting team members, partners/vendors, as well as Senior Leadership, to lead the design, development, testing, deployment, sustainment, and administering of the ServiceNow solution. They perform technical aspects of the ServiceNow implementation including: ServiceNow solution architecture, install, application UI, process automation, external integrations, access control, security hardening, workflow design/configuration, reporting, upgrades, and patching. They also provide ServiceNow focused consultation and technical leadership. They support the Technical Exchange Meetings, contribute to user facing documents, and are responsible for ServiceNow applications upkeep.
The job duties of the Applications Developer are as follows:
  • Performs designing, programming, testing and debugging ServiceNow and applicable scripts
  • Perform capacity planning, system tuning, problem analysis and hardware/software upgrades
  • Develop administrative policies, documentation, and procedures to ensure that ServiceNow is properly maintained and operated
  • Perform testing and establish system acceptance criteria on new or current hardware and software
  • Build service requests from customer requirements, request items, and tasks
  • Determine training needs and develop ServiceNow based guidelines tailored to the work environment
  • Build client profiles and system configurations for software distribution equipment
  • Respond to system alerts and engage in troubleshooting and problem resolution
  • Use workflows to manage data flows from customers to support teams
  • Use scripting tools to process automation and perform integration
  • Import and export data across various enterprise applications
  • Perform system and integration testing with sample and live data
  • Monitor the health and status of ServiceNow and applicable scripts
  • Work with IT managers to generate views and reports as needed
  • Analyze user requirements and current procedures to improve system capabilities
  • Install software releases and maintains data confidentiality, integrity, and availability
  • Consult with clients, hardware and software vendors, users, system administrators, and engineers
  • Provide technical support for development, test, and production environments
  • Experience in Linux/Unix System Administration
  • Experience in managing a Self-Hosted ServiceNow instance and upgrading ServiceNow Core applications
  • Assess existing ServiceNow usage and recommend forward evolution to maximize efficiencies
  • Perform integrations and process automation using ServiceNow Orchestration
  • Understand ITIL/ITSM processes
  • Understand HTML, CSS, JavaScript, and other web technologies
  • Must be knowledgeable in the support and development of ServiceNow, Splunk, Nlyte, VMware, Ansible, etc.

Required Clearance:
TS/SCI poly (#tssci) (#polygraph)
Required Qualifications:
  • Five (5) years of experience as a Developer in programs and contracts of similar scope, type, and complexity are required.
  • Bachelor's degree in System Engineering, Computer Science, Applied Science, Electrical Engineering, Math, Information Assurance, Information Security System Engineering, or related discipline from an accredited college or university, a developer nanodegree, or equivalent work experience, is required.
  • Five (5) years of additional SE experience may be substituted for a Bachelor's degree.
  • Must comply with DoD 8570 IAT, Level 2 (Security+).
  • Must be US Citizen.

Our Senior Applications Developer's earn between $98,100 - $180,000. Not to mention all the other amazing rewards that working at AT&T offers. Individual starting salary within this range may depend on geography, experience, expertise, and education/training.
Joining our team comes with amazing perks and benefits:
  • Medical/Dental/Vision coverage
  • 401(k) plan
  • Tuition reimbursement program
  • Paid Time Off and Holidays (based on date of hire, at least 23 days of vacation each year and 9 company-designated holidays)
  • Paid Parental Leave
  • Paid Caregiver Leave
  • Additional sick leave beyond what state and local law require may be available but is unprotected
  • Adoption Reimbursement
  • Disability Benefits (short term and long term)
  • Life and Accidental Death Insurance
  • Supplemental benefit programs: critical illness/accident hospital indemnity/group legal
  • Employee Assistance Programs (EAP)
  • Extensive employee wellness programs
  • Employee discounts up to 50% off on eligible AT&T mobility plans and accessories, AT&T internet (and fiber where available) and AT&T wireline phone

Weekly Hours:
40
Time Type:
Regular
Location:
Columbia, Maryland
It is the policy of AT&T to provide equal employment opportunity (EEO) to all persons regardless of age, color, national origin, citizenship status, physical or mental disability, race, religion, creed, gender, sex, sexual orientation, gender identity and/or expression, genetic information, marital status, status with regard to public assistance, veteran status, or any other characteristic protected by federal, state or local law. In addition, AT&T will provide reasonable accommodations for qualified individuals with disabilities. AT&T is a fair chance employer and does not initiate a background check until an offer is made.

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