186 software engineer data science jobs at 69 companies in Manassas Park, VA

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Data Science Software Engineer
Annapolis Junction, Maryland, United States
$50k-$290k/yr OnsiteFull Time
The Swift Group: Providing engineering and cybersecurity services for national security missions.
20+ YOE20 years SWE experience, US citizenship and active security clearance, bachelor\u0002s in CS or related (or 4 additional years SWE), expertise in Java/Scala/Python, ML model development and monitoring, Linux development, and agency compliance.
Java, Scala, Python, Lucene, JEXL, SQL, JSON, Random Forest, Ghostmachine (Map/Reduce), GM Learn, Jupyter Notebooks, IntelliJ, Eclipse, Git, Gitlab, Stash, Bitbucket, Jira, Confluence, Scikit-learn, AWS, Spark, LLM
1mo
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Senior Data Science Engineer
Laurel, Maryland, United States
$180k-$220k/yr OnsiteFull Time
GrammaTech
GrammaTech: Provides software products and research services focused on cybersecurity and code analysis.
12+ YOERequires active TS/SCI with Polygraph, 12+ years software engineering, Bachelor's in CS (or equivalent experience), expertise in Java/Scala/Python, ML model development, Scikit-learn, Jupyter, Git tooling, and compliance analytics.
Java, Scala, Python, Lucene, JEXL, SQL, JSON, Linux, Scikit-learn, Jupyter Notebooks, Ghostmachine, GM Learn, Git, GitLab, Bitbucket, Stash, IntelliJ, Eclipse, Jira, Confluence, Random Forest, AWS, Apache Spark, Agentic AI, Large Language Models (LLMs)
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Data Science & AI/PQC Engineer — Federal Mission Solutions
Gaithersburg, Maryland, United States
$150k-$185k/yr OnsiteFull Time
Diaconia
Diaconia: Provides secure IT modernization and engineering for government agencies.
3+ YOE3+ years experience in data science, ML engineering, software engineering, or cybersecurity; Bachelor's in a technical field (or equivalent experience); proficiency in Python and SQL; cloud/container delivery experience; U.S. citizenship and ability to obtain government security clearance.
Python, SQL, APIs, Docker, Kubernetes, Helm, CI/CD, AWS, Azure, Git, Linux, PyTorch, TensorFlow, Hugging Face Transformers, scikit-learn, XGBoost, pandas, LangChain, LangGraph, Semantic Kernel, AutoGen, MLflow, SageMaker, Vertex AI, Airflow, Kubeflow, Databricks, Tableau, Power BI, Plotly Dash, Kibana, Grafana
2mo
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SOFTWARE DEVELOPER/DATA SCIENTIST (INTERDISCIPLINARY) - DIRECT HIRE AUTHORITY
Dahlgren, Virginia, United States
$101k-$159k/yr OnsiteFull Time, Contract
Joint Warfare Analysis Center
Joint Warfare Analysis Center: Provides engineering and scientific analysis for US national security.
3+ YOEInterdisciplinary software engineering and data science role with security clearance; experience in development, security, and data analytics.
Python, R, Java, C#, Visual Studio, AWS, Kubernetes, GitLab, DevSecOps, ArcGIS Pro, LLMs
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Software Data Engineer 4 (EAI - 127)
Laurel, Maryland, United States
OnsiteFull Time
SageCor Solutions
SageCor Solutions: Provides engineering services for the intelligence community.
3+ YOEActive TS/SCI with Polygraph required. Degree in engineering, computer science, or mathematics with 3–8 years software engineering experience depending on degree; experience with Open Stack, Linux, Python, PowerShell, cloud operations, and network automation.
Open Stack, Linux, Python, PowerShell
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Software Engineer/ Data Developer
Annapolis Junction, Maryland, United States
OnsiteFull Time
Tiber Technologies: Providing specialized engineering and security services for federal missions.
U.S. citizen with active clearance and polygraph required. Bachelor's in computer science/engineering required. Strong Java and Python development, Docker/Kubernetes, Git/GitLab, Linux, and SRE familiarity required.
Java, Python, Docker, Kubernetes, Git, GitLab, Linux, Apache NiFi, Elasticsearch, Kibana, Hadoop
3w
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Software Developer
Sterling, Virginia, United States
OnsiteFull Time
ASSYST
ASSYST: An IT firm specializing in digital transformation, DevSecOps, cyber security, and AI integration for government clients.
Master's in Computer Science or related required; expertise in software engineering, AI/ML, data science, deep learning, neural networks, and quality assurance testing; ability to travel to local clients.
3d
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Data Scientist / Software Engineer - Expert TS/SCI w/POLY REQUIRED
McLean, Virginia, United States
$175k/yr OnsiteFull Time
Falls Technology
Falls Technology: Provides secure software development and systems engineering services.
Active TS/SCI clearance with polygraph, significant data science or software engineering experience, strong Python, NLP, machine learning, SQL, Linux, Git, AWS, and object-oriented programming skills.
Python, spaCy, Gensim, NLTK, PyTorch, TensorFlow, Keras, Java, Spring, Spring Data JPA, Oracle, SQL, AWS, Linux, Git, Jenkins, Apache Tomcat, Maven, Gradle, Eclipse
2mo
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Software Engineer
Alexandria or United States
RemoteFull Time
Whitespace
Whitespace: Building AI-powered geospatial intelligence platforms for global leaders.
7+ YOE7+ years software engineering experience; strong coding in Python/Java/Go; CI/CD and DevOps experience; SQL/NoSQL; geospatial data science and analytics experience preferred; US citizenship and TS/SCI eligibility required.
Python, Java, Go, GitLab, JIRA, Confluence, Kubernetes, SQL, NoSQL, GeoPandas, ArcGIS Pro, ArcGIS Enterprise, QGIS, Spark, Hadoop, Athena, EMR, BigQuery, Tableau, Power BI, Kepler.gl, Deck.gl
3mo
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Software Development & Data Scientist Clearance Sponsorship
McLean or Chantilly
$170k-$229k/yr OnsiteFull Time
General Dynamics Information TechnologyNYSE: GD: Provides mission-critical IT services to government and defense organizations.
8+ YOE8+ years of experience in software development or data science; TS/SCI clearance with polygraph sponsorship; US citizenship; Bachelor's in Computer Science or Engineering; strong Java, Python, AWS, and database skills.
Java, Python, Amazon Web Services (AWS), SQL, MySQL, PostgreSQL, Agile, AI/ML
3mo
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Software Engineer, Lead
McLean, Virginia, United States
$87k-$198k/yr OnsiteFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Provides technology and management consulting services to diverse organizations.
5+ YOE5+ years in software development; strong experience with Java, Kotlin, Python, JavaScript/TypeScript, C/C++, or Go; experience with AI/ML, big data; TS/SCI clearance; Bachelor's in Engineering, Science, or Technology.
Java, Kotlin, Python, JavaScript, TypeScript, C/C++, Golang, AI, machine learning, big data, data science, cloud platforms
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Principal Software Engineer
Fairfax, Virginia, United States
OnsiteFull Time
Trident Systems
Trident Systems: Develops high-performance electronics for space and defense.
9+ YOEBachelor's in CS/Software Eng/Data Science (or equivalent experience), 9+ years related experience (7+ with graduate degree) with Python, Linux/Windows, databases, JSON/REST, Git/SVN, and production-quality software development.
Python, Linux, Windows, Android, JSON, CSV, XML, REST APIs, sockets, message queues, PostgreSQL, SQLite, InfluxDB, object storage, Git, SVN, Flask, FastAPI, Django, Dash, Docker, CI/CD pipelines
1mo
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Cloud Software Engineer
Potomac or Maryland
OnsiteFull Time
Kepora
Kepora: A technology developing cloud-based big-data software systems for complex information processing and analytics.
12+ YOEU.S. citizenship and active TS/SCI with Full Scope Polygraph required; 12 years software engineering experience (4 years with Big-Data cloud/Distributed Computing); Bachelor's in Computer Science or equivalent; experience with Hadoop, Java, MapReduce, HDFS, HBase, ZooKeeper, and SIGINT collection disciplines.
Hadoop, Java, Python, CFEngine, Bash, Ruby, Java Virtual Machine (JVM), Eclipse, Maven, RESTful web services, YARN, J2EE, MapReduce, ZooKeeper, HDFS, HBase, JMS, Apache Lucene, Apache Solr, MongoDB, XML, JSON, CSV, Avro, CentOS, Linux, Red Hat, Subversion, ClearQuest, Razor, VMware, VirtualBox
1w
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Senior Applied AI Engineer – Data Science & Analytics
Columbia, Maryland, United States
$170k-$240k/yr OnsiteFull Time
Visionist
Visionist: Provides software engineering and data analytics for national security.
12+ YOEBachelor's degree in a technical discipline or equivalent experience, 12 years of software development, production Python, data science or machine learning, large-scale data platforms, and customer collaboration experience.
Python, Pandas, NumPy, Scikit-learn, SQL, Elasticsearch
2mo
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Lead AI Software Engineer
United States or Tysons
$113k-$188k/yr RemoteFull Time
Guidehouse
Guidehouse: Provides management and technology consulting services to diverse organizations.
6+ YOEAbility to obtain Public Trust; BA in CS/Engineering/Data Science or equivalent; 6+ years software engineering experience; expert Java or Python, ReactJS, AWS, RDBMS, CI/CD, DevSecOps, SAFe experience, and leadership/mentoring skills.
AWS, Lambda, ECS/Fargate, API Gateway, Step Functions, S3, Glue, ReactJS, Java, Python, PostgreSQL, MySQL, Aurora, GitHub Copilot, Cursor, Claude Code, LangChain, Haystack, Semantic Kernel, D3.js, Plotly, Tableau, QuickSight, Terraform, AWS CDK, CloudFormation, SAST, DAST, SCA, CI/CD
19h
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Software Development Engineer, Open Data Analytics - Engines
Arlington, Virginia, United States
$144k-$194k/yr OnsiteFull Time
Amazon
AmazonNASDAQ: AMZN: Global online retail and cloud computing technology provider.
2+ YOERequires programming experience, 2+ years of non-internship software development and design or architecture experience, strong computer science fundamentals, and proficiency in Java, C, C++, or C#.
SQL, Parquet, Apache Iceberg, Amazon S3, Java, C, C++, C#, Hadoop
1w
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Mid-Level Software Engineer
Annapolis Junction, Maryland, United States
$70k-$190k/yr OnsiteFull Time
Belay Technologies
Belay Technologies: Provides specialized technology and engineering services to the DoD.
6+ YOETS/SCI with polygraph,6+ years software development experience,BS in Computer Science (or 10 years additional experience),strong Java and integration skills,SharePoint and FEITH experience,Gitlab/Maven/JFrog,REST and data parsing.
AWS, SharePoint, C++, FEITH Records Management System, SQL, SQL Server, Java, Oracle, Linux, Windows, JIRA, Confluence, Gitlab, Maven, JFrog Artifactory, REST, JSON, XML, Microsoft Excel
2mo
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JR Software Developer
Chantilly, Virginia, United States
OnsiteFull Time
Probity
Probity: Provides IT, cybersecurity, and engineering services to government agencies.
Master's degree in Computer Science, Information Systems, Engineering or equivalent; strong Python, Java/Scala, SQL; Hadoop/Spark; cloud data platforms; Docker/Kubernetes/Airflow; Agile experience; active Top Secret/SCI clearance with Polygraph.
Python, Java, Scala, SQL, Hive, Hadoop, Spark, AWS Glue, Google Cloud Dataflow, Azure Data Factory, Docker, Kubernetes, Airflow
1mo
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Modern Software Developer, Senior
Arlington, Virginia, United States
$87k-$198k/yr OnsiteFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Consulting and technology services for government and commercial clients
3+ YOE3+ years full‑stack software development with JavaScript/TypeScript, NodeJS, React, Python; 3+ years data work; experience with AI/ML, microservices, DevOps pipelines; Secret clearance; Bachelor’s in CS/Data Science/Computer Engineering/Statistics or 8+ years experience; cybersecurity or computing certifications.
JavaScript, TypeScript, NodeJS, React, Python, R, SQL, NoSQL, AWS
6d
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Senior Software Engineer, IS-02/03-0046
Laurel, Maryland, United States
OnsiteFull Time
Cyber B.A.T.
Cyber B.A.T.: Provider of engineering and cybersecurity services for government missions.
14+ YOERequires TS/SCI clearance with current Maryland polygraph, bachelor's in computer science or related technical field, and 14 years' software engineering experience; Python, Java, Scala, ML, Linux, and data tools required.
Python, Machine Learning (ML), Artificial Intelligence (AI), GM Learn, Exploratory Data Analysis (EDA), Jira, Confluence, Linux, Java, Scala, Lucene, JEXL, SQL, JSON, Random Forest, Ghostmachine, Map/Reduce, Jupyter Notebooks, IntelliJ, Eclipse, Git, GitLab, Stash, Bitbucket, Scikit-learn, AWS, Spark, Large Language Models (LLM)