Top 4944 Applications Developer Jobs in Washington, DC

DevOps Engineer
Sealing Technologies, a Parsons Company —Columbia, MD
- $135,000 - $160,000 a year
- Full-time
- 6 years
- Travel
- Senior level
- Dental insurance
- Tuition reimbursement
Senior .NET Developer (US citizen/Hybrid Work/Public Trust Required)
IvoryCloud —Rockville, MD
- $110,000 - $140,000 a year
- Full-time
- Hybrid work
- Computer Science
- Office
- Bachelor's degree
- Disability insurance
- Health insurance
Quick Apply
Software Engineer
Metron —Reston, VA
- Computer Science
- Mid-level
- Office
- Profit sharing
- Paid parental leave
Formal Verification and Software Assurance Engineer
Johns Hopkins Applied Physics Laboratory (APL) —Laurel, MD
- $100,000 - $245,000 a year
- Full-time
- Computer Science
- Mid-level
- Windows
- Disability insurance
- Health insurance
Azure DevOps-CI/CD pipeline Engineer (US Citizen/Public Trust Clearance/Hybrid work required)
IvoryCloud —Rockville, MD
- $125,000 - $140,000 a year
- Full-time
- Hybrid work
- Azure
- 5 years
- Bachelor of Science
- Health insurance
- Dental insurance
Quick Apply
Senior Software Engineer
Freddie Mac —McLean, VA
- $129,000 - $193,000 a year
- Full-time
- Computer Science
- 5 years
- System design
MCCO Software Developer SME | Active TS/SCI CI Poly
General Dynamics Information Technology —Fort Meade, MD
- $170,000 - $230,000 a year
- Azure
- Windows
- Java
- Paid time off
- 401(k) matching
Mid-Level Backend Software Engineer
Leidos —Alexandria, VA
- $87,100 - $157,450 a year
- Full-time
- Azure
- Computer Science
- System design
Software Engineer for Sensor/Weapon Command & Control
Johns Hopkins Applied Physics Laboratory (APL) —Laurel, MD
- $100,000 - $245,000 a year
- Full-time
- Computer Science
- 5 years
- Engineering
- Disability insurance
- Health insurance
Principal Software Engineer (SWE-4)
Leidos —Annapolis Junction, MD
- $131,300 - $237,350 a year
- Full-time
- 11+ years
- Java
- Bachelor's degree
- Paid holidays
- Paid time off
Senior Python Developer
Leidos —Columbia, MD
- $131,300 - $237,350 a year
- Full-time
- Azure
- Computer Science
- Bachelor of Science
Technical DevSecOps Manager - TS/SCI with Polygraph
General Dynamics Information Technology —McLean, VA
- $147,292 - $199,278 a year
- Computer science
- Computer Science
- 3 years
Appian Software Developer/Integrator
Leidos —Bethesda, MD
- $107,900 - $195,050 a year
- Full-time
- 6 years
- Office
- Java
- Flexible schedule
Senior Application Developer
SOSi —Fort Belvoir, VA
- $140,000 - $155,000 a year
- Full-time
- Azure
- 5 years
- Engineering
Quick Apply
DevOps / Security Engineer — Cloud Platform & IoT Systems
GL Intelligence, Inc. —Chantilly, VA
- $120,000 - $170,000 a year
- Full-time
- Hybrid work
- Azure
- 5 years
- DevOps
- Health insurance
- Dental insurance
Quick Apply
Autonomous Systems Software Engineer
Metron —Reston, VA
- Computer Science
- Mid-level
- Office
- Profit sharing
- Paid parental leave
Software Engineer Sr Advisor
General Dynamics Information Technology —Annapolis Junction, MD
- $195,500 - $264,500 a year
- Computer Science
- Software troubleshooting
- Math
- 401(k) matching
Software Developer
Highlight Technologies —Washington, DC
- Email
- Background check
- Computer Science
- Bachelor's degree
- Employee stock ownership plan
Senior Software Engineer (SAS)
General Dynamics Information Technology —Springfield, VA
- $125,800 - $170,200 a year
- Azure
- 5 years
- Bachelor's degree
- Paid time off
- 401(k) matching
Software Reverse Engineer
Leidos —Columbia, MD
- $107,900 - $195,050 a year
- Full-time
- Mid-level
- Fair chance
- Python

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Applications Developer jobs near Washington, DC

DevOps Engineer

Sealing Technologies, a Parsons Company
Columbia, MD

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Job Details

Full-time
$135,000 - $160,000 a year

Benefits

Dental insurance
Tuition reimbursement
Vision insurance
Flexible schedule

Qualifications

Containerization systems
Content creation for technical audiences
Linux support
Ansible
Application deployment
Systems engineering
Software documentation
System deployment
Storage management (system administration)
DevOps automation
Server configuration
Linux administration

Full Job Description

Location: Columbia, MD
Type: Hybrid
Travel: 15%

About Us:
Sealing Technologies, a Parsons company, innovates and delivers high-performance deployable anywhere technologies that push what's possible at the edge, enabling organizations across the globe to solve complex challenges with speed and confidence. We design, engineer, and deliver products and deployable technologies built for environments where traditional infrastructure falls short.

Position Overview:
Sealing Technologies, a Parsons Company, is looking for an experienced DevOps Engineer to join a growing Software Development project team. In this role, you will develop and maintain the automation and deployment infrastructure that underpins a consolidated application suite supporting Defensive Cyber Operations (DCO). The suite runs on custom server hardware and is built to operate in fully offline, disconnected environments with no reliance on cloud services.

You will work across the full deployment lifecycle, automating Kubernetes cluster provisioning, containerizing applications, managing KubeVirt virtual machines, and building the CI/CD pipelines that keep the team moving. You will collaborate closely with systems engineers, contribute to documentation, and take on a range of tasks as the product and mission evolve. The ideal candidate is someone who is comfortable wearing multiple hats, picks things up quickly, and takes ownership across disciplines.

Duties and Responsibilities:

Develop and maintain Ansible playbooks and roles to automate the deployment and configuration of Kubernetes clusters, containerized workloads, and KubeVirt VMs on custom server hardware.
Containerize applications and manage container image builds, versioning, and distribution in offline environments.
Build and maintain CI/CD pipelines using GitLab CI and/or GitHub Actions to support iterative software delivery across multiple products.
Work closely with systems engineers to understand hardware and environmental constraints and translate them into repeatable, automated deployment processes.
Troubleshoot deployment, networking, storage, and configuration issues across the full application stack in air-gapped environments.
Assist with the integration of application data streams into big data platforms, supporting pipeline tooling such as Apache NiFi or similar ETL frameworks.
Contribute to system hardening and STIG compliance activities as part of deployment and configuration workflows.
Write and maintain clear technical documentation including deployment guides, runbooks, and architecture notes.

Minimum Qualifications:

U.S. Citizenship.
Active SECRET security clearance.
6+ years of professional experience in DevOps, systems engineering, or a closely related field.
Strong hands-on experience with Kubernetes, including cluster setup, workload deployment, networking, and day-to-day troubleshooting.
Solid Linux system administration skills, including networking, storage, and service management across multiple distributions.
Demonstrated experience writing and maintaining Ansible playbooks and roles for infrastructure automation and application deployment.
Experience building and managing CI/CD pipelines with GitLab CI and/or GitHub Actions.
Hands-on experience containerizing applications using Docker or similar tooling.
Ability to work effectively in offline or air-gapped environments without access to public registries or cloud services.
Strong written communication skills and experience producing clear technical documentation.

Preferred Qualifications:

Experience with KubeVirt or managing VM-based workloads within Kubernetes.
Experience deploying software to bare-metal or custom server hardware outside of traditional data center or cloud environments.
Experience with data stream integration and ETL tooling such as Apache NiFi, Kafka, or Logstash for ingesting application data into big data platforms.
Familiarity with cybersecurity tooling or security operations platforms such as Elastic, Splunk, or Security Onion.
Experience working in Federal or DoD environments, including STIG compliance and system hardening practices.
Familiarity with Helm for Kubernetes application packaging and deployment.

Sealing Technologies is an equal opportunity employer, and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability, veteran status or any other protected status. Working is no longer solely about the job. Here at Sealing Tech, we understand your happiness and health is vital to our success. We are innovative in our approach to cultivating balanced work environments and offer a plethora of added perks. Sealing Tech offers competitive compensation packages, health, dental, and vision insurance, retirement contributions, continuing education budgets, tuition reimbursement, flexible schedules, and generous vacation policies. Other perks include complimentary snacks, drinks & monthly catered lunches, and company retreats and gatherings. Plus, flexible work arrangements, pet friendly offices and quarterly merit bonuses for qualified employees. We are looking for a new member to join our team, take on challenges, be innovative and willing to grow with us. BUILD, SECURE, SOLVE.

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Refine Your Search

Applications Developer jobs in Washington, DC

DevOps Engineer

Senior .NET Developer (US citizen/Hybrid Work/Public Trust Required)

Software Engineer

Formal Verification and Software Assurance Engineer

Azure DevOps-CI/CD pipeline Engineer (US Citizen/Public Trust Clearance/Hybrid work required)

Senior Software Engineer

MCCO Software Developer SME | Active TS/SCI CI Poly

Mid-Level Backend Software Engineer

Software Engineer for Sensor/Weapon Command & Control

Principal Software Engineer (SWE-4)

Senior Python Developer

Technical DevSecOps Manager - TS/SCI with Polygraph

Appian Software Developer/Integrator

Senior Application Developer

DevOps / Security Engineer — Cloud Platform & IoT Systems

Autonomous Systems Software Engineer

Software Engineer Sr Advisor

Software Developer

Senior Software Engineer (SAS)

Software Reverse Engineer

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