McLean, VA

Developer Jobs in McLean, VA

34 jobs found

Include remote jobs

Today

Software Engineers (Level 2 or 3)

Northrop Grumman McLean, VA

McLean, VA

Today

$92k - $171k/yr Full time Cloud Operations DevOps Full Stack

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Job Description

Northrop Grumman is seeking Software Engineers (Level 2 or 3) to contribute to the development, integration, deployment, and sustainment of satellite ground software onsite at the McLean, VA campus.

Responsibilities

Full stack development across operating system, platform, and mission specific software layers.
Design and implement client and server applications and services using service- or object-oriented architectures with message bus data exchanges and first-of-a-kind capabilities.
Work with languages and toolsets including Python, C++, Postgres, Ansible, cloud infrastructure provisioning, PKI, and static code analysis with remediation actions.
Operate as a self-starter capable of making decisions with overall project budget and schedule in mind.
Provide support for Operations ground software and related configurations, troubleshooting software and hardware impacting ground software operation.
Assist Acceptance Test events by participating in test execution.
Develop and maintain test automation.
Configure ground segment software.
Identify, resolve, and remediate software defects.
Implement software enhancements driven by customer change requests or mission needs.
Provide ground software support during launch and launch rehearsal events.
Assist with installing new ground segment software across operational, development, and test environments.

Requirements

Level 2: Bachelor’s degree in Computer Science or Engineering with 2 years of experience, or a Master’s degree with 0 years; or equivalent experience (additional 4 years) in lieu of the degree.
Level 2: Demonstrated software development experience.
Level 2: Python application development, C++, Bash Scripting experience.
Level 2: U.S. Citizenship.
Level 2: Must have an active Top-Secret clearance at the time of application with the ability to obtain and maintain a TS/SCI clearance.
Level 3: Bachelor’s degree in Computer Science or Engineering with 5 years of experience, or a Master’s with 3 years, or a PhD with 1 year; or equivalent experience (additional 4 years) in lieu of the degree.
Level 3: Demonstrated software development experience.
Level 3: Python application development, C++, Bash Scripting experience.
Level 3: U.S. Citizenship.
Level 3: Must have an active Top-Secret clearance at the time of application with the ability to obtain and maintain a TS/SCI clearance.

Technologies

Python
C++
Postgres
Ansible
cloud infrastructure provisioning
PKI
static code analysis

Benefits

Health insurance coverage
Life and disability insurance
Savings plan
Company paid holidays
Paid time off (PTO) for vacation and/or personal business
Long Term Incentives
Annual bonuses
Discretionary bonus

Preferred Qualifications

Strong preference given to Top Secret with SCI

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Today

Software Developer (Java) - TS/SCI w/Poly

General Dynamics Information Technology McLean, VA

McLean, VA

Today

$157k - $213k/yr Full time Backend Developer APIs Data Integration

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Job Description

General Dynamics Information Technology is seeking a Software Developer with a focus on Java to support the development of systems and capabilities for full motion video. This onsite position in McLean, Virginia requires a TS/SCI with Poly clearance and offers a salary range of USD 157,250 to 212,750 annually.

Responsibilities

Develop and maintain software for FMV programs, aligning with the program's technical vision and mission objectives.
Utilize a broad set of languages and technologies, including Java, JavaScript/React/Redux/AngularJS, SQL/NoSQL/Graph, and C++.
Contribute to microservice API development and integration using gRPC and REST.
Deploy micro and macro services with NodeJS or JBoss; manage endpoints via gRPC or REST; conduct REST-based service integration, API negotiation, threading, and load balancing.
Apply ETL concepts and engines to decouple solutions; create and modify orchestration templates for classified environments.
Model and query data using GraphDB, SQL, and NoSQL; work with MS SQL Server, OmniSci, and Accumulo/Hadoop for data storage and analysis.
Build reactive web applications and maintain large-scale React/Redux apps with RxJS and Reactive Streams; sustain legacy AngularJS applications and troubleshoot in customer spaces.
Handle applications ranging from Java to C++ with priority driven by customer needs; leverage messaging engines and HA clusters; work with Kafka streams and ksqlDB.
Use and manage containers and orchestration tools such as Docker and Kubernetes; create, deploy, and manage containers and ensure scalability of deployed software.

Requirements

Ability to apply and execute highly advanced technologies, principles, theories and concepts.
Willingness to learn in one discipline while developing working knowledge in adjacent fields.
Proficient understanding of engineering principles, concepts, practices, and standards.
Experience using JIRA to manage daily work, sprints, increments, metrics, performance, and backlogs.
Experience developing within an Agile framework, including Sprints, Demonstrations, and Scrum ceremonies.
Proven ability to communicate issues, impacts, and corrective actions clearly.
Strong capability to convey project topics to diverse audiences and report relevant information succinctly.
Proven ability to anticipate technology, process, and skill needs.
Education: Bachelor’s of Science in Engineering.
Experience: Minimum 5 years of related experience.
Citizenship: U.S. Citizenship Required.

Technologies

Java
Javascript
React/Redux
AngularJS
SQL
NoSQL
Graph
C++
gRPC
REST
NodeJS
JBoss
GraphDB
MS SQL Server
OmniSci
Accumulo/Hadoop
RxJS
Reactive Streams
Kafka
ksqlDB
Docker
Kubernetes

Benefits

401K with company match
Comprehensive health and wellness packages
Internal mobility team to help advance your career
Professional growth opportunities including paid education and certifications
Exposure to cutting-edge technology
Paid vacation and holidays for rest and recharge

Work Requirements

Years of Experience: 5+ years of related experience (may vary based on technical training, certification(s), or degree)
Travel Required: None
Citizenship: U.S. Citizenship Required

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1d ago

Software Engineer (Level 3/4)

Northrop Grumman McLean, VA

McLean, VA

1d ago

$114k - $213k/yr Full time Senior Ansible APIs

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Job Description

Join Northrop Grumman's satellite ground software team at the McLean, Virginia campus, onsite. This mid to senior level role focuses on developing, integrating, deploying, and sustaining ground software for satellite missions, with a Top Secret clearance required.

Benefits

Health insurance coverage
Life and disability insurance
Savings plan
Company paid holidays
Paid time off (PTO) for vacation and personal business
Overtime eligibility
Shift differential
Discretionary bonus
Annual bonuses
Long Term Incentives

Responsibilities

Full stack development across the operating system, platform, and mission specific software layers
Develop client and server applications and services using service or object oriented architectures and message bus based data exchange, including first of a kind capabilities
Work with languages and tools such as Python, C++, Postgres, Ansible, cloud infrastructure provisioning, PKI, and static code analysis for remediation
Act as a self starter capable of making decisions with the project budget and schedule in mind
Support Operations ground software and related configurations, troubleshooting both software errors and hardware affecting ground software operations
Support Acceptance Test events, including running tests
Test automation
Configure ground segment software
Resolve and remediate software defects
Deliver software enhancements driven by customer change requests or mission needs
Provide ground software support during launch and launch rehearsal events
Assist with the installation of new ground segment software in operational, development, and test environments

Requirements

Bachelor’s degree in a STEM field (ideally Computer Science or Engineering) and 5 years of experience, or a master’s degree with 3 years of experience, or a PhD in a STEM field. For the PhD path, an additional 4 years of relevant experience may be considered in lieu of the degree, with internships or research projects not counting toward this substitution
Demonstrated software development experience
Python application development, C++, Bash scripting experience
U.S. Citizenship
A current or active Top-Secret clearance is required at the time of application

Technologies

Python
C++
Bash scripting
Postgres
Ansible
Cloud infrastructure provisioning
PKI

Relocation

Relocation assistance may be available

Clearance and travel

Clearance required for start: Yes
Clearance type: Top Secret
Travel: Yes, 10% of the time

Preferred qualification

Strong preference given to Top Secret with SCI

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6d ago

Software Engineer, Lead

Booz Allen Hamilton McLean, VA

McLean, VA

6d ago

$113k - $257k/yr Full time Senior Agentic Ai AI Enablement

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Job Description

Lead Full Stack Software Engineer at Booz Allen Hamilton responsible for designing, building, integrating, and deploying new capabilities in a cybersecurity context, including agentic AI software, with involvement in greenfield development and rapid AI-enabled prototyping.

Responsibilities

Design, build, integrate, and deploy new capabilities.
Execute greenfield software development and integrate capabilities with industry leading cybersecurity tools end to end, aligned with the team roadmap.
Leverage experience with AI coding tools to scaffold, implement, review, and test new software and features rapidly.
Communicate effectively and work independently against ambiguous requirements.
Distill complex requirements into actionable engineering tasks, design solutions, estimate complexity, sequence work, and implement capability.
Contribute to a high velocity engineering team, moving at the pace of technology.
Define done as production ready software.
Deliver next generation cybersecurity products.

Requirements

7+ years of experience with Python, HTML, CSS, and JavaScript (for example, React).
7+ years of experience with data storage technologies such as SQL, Document, or Graph.
7+ years of experience with cloud and containers, such as AWS, Docker, or Kubernetes.
4+ years of experience with system to system integration development, such as API.
4+ years of experience deploying, configuring, and operating applications and tools.
Experience with LLM, Agentic AI, RAG, or MCP implementations.
Ability to obtain a Secret clearance.
Bachelor's degree.

Technologies

Python
HTML
CSS
JavaScript
React
SQL
Document
Graph
AWS
Docker
Kubernetes
API
LLM
Agentic AI
RAG
MCP

Benefits

Health, life, disability, financial, and retirement benefits
Paid leave
Professional development
Tuition assistance
Work-life programs
Dependent care

Clearance

Applicants selected will be subject to a security investigation and may need to meet eligibility requirements for access to classified information.

Compensation

Projected annual salary range: USD 112,800 to 257,000, influenced by location, education, knowledge, skills, competencies, experience, contract affordability, and organizational requirements. This range reflects typical compensation for the role.

Identity verification

As part of the hiring process, an identity verification process using advanced biometrics and artificial intelligence may be used to ensure authenticity and protect against identity fraud. Interview and assessment sessions may require on camera presence, and Booz Allen may take your picture to verify identity.

Candidate AI usage policy

AI is part of daily work at Booz Allen, and the company promotes responsible use of AI tools. Use of AI or other tools to assist with interview responses is prohibited unless explicitly permitted.

Work model

Remote: May require occasional in person work at Booz Allen or customer facilities.
Hybrid: Frequent work from a Booz Allen facility with potential client site visits.
Onsite: Primary work performed at a Booz Allen office or customer facility, collaborating in person as required.

Non-discrimination

All qualified applicants will receive consideration for employment without regard to disability, protected veteran status, or any other status protected by applicable law.

Nice if you have

Experience with Golang, C#, or Java
Experience with DevSecOps and CI/CD pipelines such as GitHub Actions or GitLab
Experience with application security and enterprise cybersecurity practices, including static and dynamic code vulnerabilities, vulnerability management, and penetration testing
Experience with rapid scaffolding and prototyping using AI coding assistants
Secret clearance

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6d ago

Software Engineer

Leidos McLean, VA

McLean, VA

6d ago

$87k - $157k/yr Full time Big Data Bigdata Cloud Operations

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Job Description

Leidos is seeking a Software Engineer to support an enterprise IT program with a focus on ETL workflows, data ingestion, and analytics across on-premises and cloud environments.

Responsibilities

Provide analysts with large datasets, methodologies, and data visualizations to address critical intelligence questions.
Ingest, clean, store, and analyze data as part of the data workflow.
Develop and support ETL workflows for data movement.
Collaborate regularly with data scientists, analysts, and managers.
Load large datasets into on‑premises and cloud environments and develop ingestion algorithms and schemas for large data sets.
Analyze new large‑volume datasets to optimize ingestion processes.
Assist in creating Apache NiFi schemas for new data loads.
Develop software tools to preprocess, modify, aggregate, load, index, and archive large data collections into clusters in near real time.
Ensure proper access controls are implemented.
Generate metrics to track data ingest statistics to maintain data integrity and provenance.
Document data flows according to customer standards.

Requirements

Active TS/SCI clearance with Poly is required.
Bachelor's degree in Computer Science, Computer Engineering, Systems Engineering, or closely related discipline with at least 4 years of experience; or a Master's degree with at least 2 years of experience; or 8+ years of experience in lieu of a degree.
Experience with AWS cloud services, including long-term storage options and cloud-based database services.
Experience understanding SQL database structures and mapping between different SQL databases.
Experience working with Apache NiFi.
Experience with large data and high performance compute clusters such as Hadoop or similar.
Experience with API development techniques.
Experience developing and deploying ETL processes for large data sets.
Experience creating operating system level scripts to perform ETL operations on SQL databases.
Experience with version control systems, preferably Git.
Experience testing software solutions for ETL using efficient languages for the task such as NiFi, Python, and SQL.
Experience implementing multiprocessing data flows to parallelize ingest operations.

Technologies

AWS
Apache NiFi
Hadoop
Python
SQL
Git

Benefits

Competitive compensation
Health and Wellness programs
Income Protection
Paid Leave
Retirement

Location

McLean, VA (onsite)

Salary

USD 87,100 - 157,450 per year

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9d ago

Palantir Data Engineer

Guidehouse McLean, VA

McLean, VA

9d ago

$113k - $188k/yr Full time Analytics Big Data Bigdata

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Job Description

This onsite Palantir Data Engineer role at Guidehouse in McLean, VA focuses on designing and operating ontology-driven data products in Palantir Foundry, with an emphasis on semantic data modeling, governance, and analytics to support case management and operational workflows.

Responsibilities

Design, implement, and maintain Palantir Foundry Ontologies, including entities, relationships, properties, actions, and permissions.
Translate business processes and domain requirements into clear, reusable entity and relationship models.
Ensure semantic consistency across datasets by enforcing standardized definitions, naming conventions, and relationship patterns.
Evolve ontologies over time while maintaining lineage, backward compatibility, and data contracts.
Design and implement ingestion pipelines into Foundry from APIs, relational databases, object storage, file drops, and external partners.
Build transformation logic that materializes ontological entities and relationships from raw and curated data sources.
Implement incremental processing and CDC patterns to keep ontology-backed data current.
Optimize pipeline performance and reliability while maintaining clarity between raw, curated, and ontology-backed layers.
Produce analysis-ready datasets that power case views, entity timelines, dashboards, cohort analyses, and trend reporting.
Enable self-service analytics by ensuring ontology-backed datasets are intuitive, well-documented, and reusable.
Support both human workflows and analytical or machine learning consumption from the same semantic foundation.
Ensure datasets and entities are fully documented with ownership, descriptions, and business definitions.
Maintain end-to-end lineage from source systems through transformations into ontological entities.
Implement policy-based access controls and secure handling aligned to organizational and compliance requirements.
Operationalize data quality checks for freshness, completeness, and validity tied to mission-critical entities.
Monitor pipelines and ontology-backed datasets using metrics, logs, and alerts.
Troubleshoot failures, conduct root-cause analysis, and implement preventive improvements.
Support environment promotion practices (DEV, TEST, PRE-PROD, PROD) with repeatable and auditable processes.
Partner with platform engineering, security, analytics, and application teams to align ontology design with operational needs.
Communicate complex ontology and data concepts clearly to both technical and non-technical stakeholders.
Participate in design and architecture reviews related to ontology evolution and data modeling standards.

Requirements

A Bachelor's degree is required
A minimum of 3 years of experience building and operating production data pipelines and data models is required
Hands-on experience with Palantir Foundry, or strong data engineering experience with the ability to ramp quickly
Palantir Foundry Ontology experience, including entity and relationship modeling
Palantir Foundry Ontology experience, including ontology-backed actions and workflows
Palantir Foundry Ontology experience, including permissioning and governance within the ontology
Strong proficiency in SQL and at least one data engineering language (Python preferred; Scala/Java acceptable)
Experience implementing ETL/ELT pipelines, incremental processing, and transformation best practices
Familiarity with governance fundamentals, including metadata, lineage, access controls, and data quality
Strong communication skills and experience working directly with product and mission stakeholders

Technologies

Palantir Foundry, Palantir Foundry Ontology, SQL, Python, Scala, Java
Palantir AIP
Databricks
Spark
Lakehouse architectures

Benefits

Medical, Rx, Dental & Vision Insurance
Personal and Family Sick Time & Company Paid Holidays
Position may be eligible for a discretionary variable incentive bonus
Parental Leave and Adoption Assistance
401(k) Retirement Plan
Basic Life & Supplemental Life
Health Savings Account, Dental/Vision & Dependent Care Flexible Spending Accounts
Short-Term & Long-Term Disability
Student Loan PayDown
Tuition Reimbursement, Personal Development & Learning Opportunities
Skills Development & Certifications
Employee Referral Program
Corporate Sponsored Events & Community Outreach
Emergency Back-Up Childcare Program
Mobility Stipend

Nice to Have

Palantir Application Developer experience, building operational applications and workflows on top of the ontology
Bachelor’s degree in Engineering, Computer Science, Information Systems, or a related field (or equivalent practical experience)
Palantir AIP experience, including ontology-backed document understanding and summarization
Palantir AIP experience, including entity extraction and enrichment
Palantir AIP experience, including human-in-the-loop review with governance controls
Using AI copilots for pipeline development, transformations, ontology evolution, and code review
Applying generative AI to improve developer productivity while maintaining data quality and governance
Experience supporting ontology-first designs for case management systems
Knowledge of entity resolution, relationship extraction, and graph-based modeling
Familiarity with Databricks, Spark, or lakehouse architectures in hybrid environments
Exposure to CI/CD practices for data pipelines and ontology changes

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10d ago

Lead Software Engineer

Hilton McLean, VA 🇺🇸 Remote

McLean, VA

10d ago

$176k - $180k/yr Full time Backend Developer Senior Amazon Web Services

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Job Description

Hilton is seeking a seasoned software engineer to design, develop, and maintain cloud-based web service integrations and distributed backend and frontend services, based in McLean, VA or remote within the United States.

RESPONSIBILITIES

Collaborate with engineers and business partners to design, implement, document, and troubleshoot web service integrations including SOAP and REST across cloud environments.
Direct the development, integration, and testing of distributed, scalable service infrastructures that handle high volumes and diverse functions for large user bases.
Partner with Agile and Scrum teams to deliver guest experiences aligned with established architectural standards.
Develop and validate code with thorough unit tests, and coordinate with product teams to address platform needs.
Build backend services using Java and craft frontend components with JSP and React.js.
Ensure security and reliability by applying authentication and encryption measures, while actively monitoring system health with Splunk, Dynatrace, and Datadog.
Willingness to travel domestically up to 10% of the time.

REQUIREMENTS

Bachelor's degree, or foreign equivalent, in Computer Science, Software Engineering, or a related field.
Minimum of five years of progressive experience in technology or software engineering.
Proven experience delivering full software development life cycle within Agile environments.
Hands-on experience with Spring Batch.
Strong PostgreSQL skills.
Foundational knowledge of data structures and algorithms.
Experience with microservice architecture.
Proficiency building HTML, CSS, JSP, React.js front ends and RESTful/GraphQL APIs using Java and Spring Boot.
Experience with caching technologies such as Redis or AWS ElastiCache.
Familiarity with AWS services (EC2, S3, Lambda, RDS, IAM), Docker, Kubernetes, and GitHub.
Ability to drive full-stack architecture and code quality through rigorous testing, including unit tests with JUnit 5, Mockito, and Selenium.
Experience maintaining and optimizing databases to ensure reliability, performance, and scalability.

TECHNOLOGIES

Java, JSP, React.js
HTML, CSS
SOAP, RESTful APIs, GraphQL
Spring Batch, Spring Boot
PostgreSQL, Redis
AWS (EC2, S3, Lambda, RDS, IAM)
Docker, Kubernetes
GitHub
JUnit 5, Mockito, Selenium
Splunk, Dynatrace, Datadog

BENEFITS

Medical
Dental
Vision
Disability Insurance
401(k)
Life Insurance
PTO

JOIN AN AWARD-WINNING WORKPLACE CULTURE

Hilton emphasizes building an exceptional workplace for the team members who deliver memorable guest experiences.
As a global hospitality leader, we have welcomed billions of guests and remain committed to warm, welcoming hospitality.
The culture has earned recognition on Great Place to Work and Fortune's World’s Best Workplaces lists.
With a portfolio of world-class brands, Hilton supports career growth and exploration across roles and paths.
Whether starting a career or pursuing new opportunities, Hilton supports your professional journey.
Join the team to contribute to compelling stays and a continually evolving travel experience.