368,611open jobs
9,439companies
50,719added this week
Browse all
Salary
$108k – $195k per year
Location
In office (Bethesda)
Seniority
Senior · 8+ years exp
Employment
Full-Time
Overview
Company
Impact
Profile match
Leidos is a defense, intelligence, civil, and health information technology enterprise. Headquartered in Reston, Virginia, the Fortune 500 company (NYSE: LDOS) operates as one of the primary IT, scientific research, and systems integration contractors for the U.S. federal government, allied defense agencies, and commercial infrastructure entities.

Leidos has an exciting opportunity for a Sr. MarkLogic Developer in our

Intel Security Sector's Analysis Solutions Business Area. Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At Leidos, we offer competitive benefits, including Paid Time Off, 11 paid Holidays, 401K with a 6% company match and immediate vesting, Flexible Schedules, Discounted Stock Purchase Plans, Technical Upskilling, Education and Training Support, Parental Paid Leave, and much more. Join us and make a difference in National Security!

Job Summary

This Java Developer role with strengths in developing MarkLogic based applications provides Agile DevOps support to mission-critical systems. You will have the opportunity to build and maintain systems, software, and cloud environments, while providing operations and maintenance for critical systems. In this role, you will also design, develop, and implement applications utilizing MarkLogic databases with business logic written in XQuery. Additionally, based on a DevOps framework, you will participate in and/or direct major deliverables of projects through all aspects of the software development lifecycle, including scope and work estimation, architecture and design, coding, and unit testing.

Job Responsibilities

  • Design and develop solutions integrating MarkLogic with existing enterprise platforms and systems.

  • Develop XQuery, JavaScript, and REST modules on the MarkLogic technology stack.

  • Develop Entity models and participate in software programming initiatives using HTML, CSS, JavaScript, Java, Angular, Python, SpringBoot, and Hibernate.

  • Develop and direct software system validation and testing methods using Junit and Katalon.

  • Develop and integrate custom software solutions leveraging automated deployment technologies; while supporting the Agile software development lifecycle following Program SAFe practices.

  • Analyze (though proof of concept, performance, and end-to-end testing) and effectively coordinate Infrastructure needs driven by developed software to meet customer mission needs.

Basic Qualifications

  • 4+ years of hands-on application development utilizing the MarkLogic framework.

  • Strong analytical and design skills, with the ability to translate business requirements into efficient and effective technical designs within large-scale, well-structured enterprise environments.

  • Significant experience in the development of service-oriented architecture applications.

  • Good understanding of Object-Oriented Design and Design Patterns.

  • Significant experience implementing the MarkLogic java-client-api within an enterprise application.

  • Strong knowledge of XQuery, FLWOR queries, JavaScript, MarkLogic, SPARQL, RDF data, XML Data, triple-stores, XML Processing

  • Significant experience with Java and data processing, manipulation or querying (SQL and NoSQL).

  • Bachelors with 8+ years of relevant experience or a Masters with 6 or more years of relevant experience. Will consider work experience in lieu of a degree.

  • TS/SCI with a polygraph is required for consideration.

Preferred Qualifications

  • Experience developing in or deploying to AWS.

At Leidos, the opportunities are boundless. We challenge our staff with interesting assignments that allow them to thrive professionally and personally. For us, helping you grow your career is good business. We look forward to learning more about you - apply today.

If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo - because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 - and moving faster than anyone else dares.

Original Posting:

January 21, 2026

For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Pay Range:

Pay Range $107,900.00 - $195,050.00

The Leidos pay range for this job level 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.

Free account
Stop reading job ads. Get the ones that fit.
One free account turns this page into a shortlist built around your stack, your level and your pay.
Match on every job. Stack, seniority, pay and location, scored against your profile.
368,611 open roles. Read straight off company career pages, refreshed every day.
Unlimited applications. Every one you send is tracked in one place, on-site or on a company board.
3 tailored CVs a month. Rewritten for the exact job you are applying to. Included free.
Create a free account
Free forever. No card. Under a minute.

Your match

How well do you fit this role?
Two answers are enough for a real match. No account needed.
Check my fit
Answers stay in this browser until you create an account.

Recommended for you based on this role

Similar stack
Same company
Bethesda
Founding Engineer 2 days ago
$76k – $99k per year • In office • Full-Time • 2+ years exp • Bachelor's Degree • Berlin
TypeScript
JavaScript
Databases
PostgreSQL
Frontend
React.js
Apply
$130k – $170k per year • In office • Full-Time • 3+ years exp • San Francisco
TypeScript
Node JS
JavaScript
Node JS
Prisma
Databases
Supabase
Typesense
AI/ML
LLM
Recommender Systems
Apply
$81k – $105k per year • In office • Full-Time • 7+ years exp • Munich
TypeScript
JavaScript
Databases
PostgreSQL
AI/ML
LLM
Frontend
tRPC
DevOps
CI/CD
Docker
Kubernetes
Apply
Full Stack Engineer 2 days ago
$70k – $93k per year • In office • Full-Time • 3+ years exp • Munich
Python
TypeScript
JavaScript
Databases
PostgreSQL
AI/ML
LLM
Frontend
tRPC
DevOps
CI/CD
Docker
Kubernetes
Apply
Backend Engineer 2 days ago
$93k – $140k per year • In office • Full-Time • 10+ years exp • Berlin
Node JS
TypeScript
JavaScript
Databases
PostgreSQL
Frontend
Next.js
React.js
Apply
$70k – $126k per year • In office • Full-Time • 4+ years exp • Bachelor's Degree • Shiloh
DevOps
AWS
Azure
GCP
Cybersecurity
Cyber Kill Chain
Defense in Depth
MITRE ATT&CK
Apply
$131k – $237k per year • Remote • Full-Time • 12+ years exp • Bachelor's Degree • United States
C++
Java
Python
Kotlin
Kotlin
Mockito
Databases
Apache Kafka
AI/ML
ChatGPT
Claude
Claude Code
Copilot
RAG
AI Agents
Context Engineering
LLM Guardrails
Model Context Protocol
DevOps
Ansible
Argo Workflows
ArgoCD
AWS
CI/CD
CloudFormation
Configuration Management
Docker
Git
GitOps
Helm
Istio
Kubernetes
OpenShift
Podman
Service Mesh
Terraform
GitHub
GitLab
Cybersecurity
SonarQube
QA
Selenium
Apply
$73k – $133k per year • In office • Full-Time • 5+ years exp • Bachelor's Degree • Orlando
Bash
PowerShell
Python
DevOps
Ansible
Configuration Management
Docker
Git
Kubernetes
Kustomize
OpenShift
Puppet
Red Hat
Terraform
VMWare
Management
Confluence
Jira
Apply
$108k – $195k per year • In office • Full-Time • 8+ years exp • Bachelor's Degree • Chantilly
DevOps
Ansible
CI/CD
Docker
Kubernetes
Apply
$108k – $195k per year • In office • Full-Time • 5+ years exp • Bachelor's Degree • Bethesda
Bash
Python
C
C
MPI
AI/ML
Kubeflow
DevOps
Ansible
AWS
CI/CD
Docker
GitLab CI
Kubernetes
Platform Engineering
SLURM
Terraform
Ubuntu
GitLab
Apply
$74k – $124k per year • In office • Full-Time • 2+ years exp • Master's Degree • Bethesda
C++
MATLAB
Python
Visual Basic
Apply
$108k – $195k per year • In office • Full-Time • 5+ years exp • Bachelor's Degree • Bethesda
Bash
Python
C
C
MPI
AI/ML
Kubeflow
DevOps
Ansible
AWS
CI/CD
Docker
GitLab CI
Kubernetes
Platform Engineering
SLURM
Terraform
Ubuntu
GitLab
Apply
$131k – $237k per year • In office • Full-Time • 12+ years exp • Bachelor's Degree • Bethesda
Python
AI/ML
Airflow
DevOps
Ansible
Docker
Grafana
Kubernetes
Prometheus
Puppet
SLURM
Terraform
HPC
Apply
$172k – $233k per year • In office • Full-Time • 8+ years exp • Bachelor's Degree • Bethesda
Cybersecurity
NIST 800-53
Apply
$48k – $87k per year • In office • Full-Time • Bachelor's Degree • Bethesda
Apply
See all jobs
This is one of many
368,611 more open roles from verified company boards, updated every day.