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Junior Python Developer Jobs in Virginia, United States

350+ junior python developer jobs from 230+ companies hiring in Virginia, United States.

All jobs in Virginia, United StatesJunior Python Developer Jobs in United States
Cities:Virginia Beach·Norfolk·Chesapeake·Richmond·Arlington·Newport News·Alexandria·East Hampton·Hampton·Roanoke·Portsmouth Heights·Portsmouth·Suffolk·South Suffolk·Lynchburg·Centreville·Dale City·West Lynchburg·Reston·Harrisonburg
350 jobs- Virginia
2w
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Junior AI Developer
United States
RemotePart Time
Future Technologies
Future Technologies: Provides technical engineering and mission support for defense systems.
Part-time junior AI developer with Python/C++. Knowledge of AWS ML services and basic ML concepts; eager to learn low-level AI optimization.
Python, C/C++, AWS, SageMaker, EC2, EKS, Lambda, Bedrock, S3, CUDA, AWS Neuron, CloudWatch, X-Ray, PyTorch, TensorFlow, JAX
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1mo
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Junior Developer
Rosslyn, Virginia, United States
OnsiteFull Time
ActioNet
ActioNet: Provides IT modernization and cybersecurity services for government agencies.
0+ YOEEntry-level software developer with 0–3 years of experience; strong foundation in programming; basics of Python, Java, or C#; familiar with Agile/Scrum; good communication and documentation skills; willingness to learn; Azure Dev/Cert preferred.
Python, Java, C#, Agile, Scrum, Azure, Microsoft Certified: Azure Developer Associate
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1mo
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Junior Cloud Developer
McLean, Virginia, United States
OnsiteFull Time
Prescient Edge
Prescient Edge: Provides intelligence, security, and defense support services.
Pursuing or completed degree in CS/IT with focus on cloud; US citizen; cloud platform knowledge (AWS/Azure/Google Cloud); programming in Python/JavaScript/Java; familiarity with Docker/Kubernetes; CI/CD and automation scripting.
Docker, Kubernetes, AWS, Azure, Google Cloud, Python, JavaScript, Java, SQL, NoSQL, MySQL, PostgreSQL, MongoDB, CI/CD, Infrastructure as Code, Serverless, VPC, Networking, Cloud Security
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3w
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Junior Software Developer
Chantilly or McLean
OnsiteFull Time
Altamira Technologies
Altamira TechnologiesNYSE: PSN: Provides data analytics and engineering for national security missions.
1+ YOE1 year relevant experience; Bachelor's in CS/CE/EE; full-stack dev with Java/C/Python/JS-TS, React, REST, Docker/Kubernetes, AWS, Linux, GitLab CI/CD; TIG Stack; CompTIA Security+.
Java, Python, JavaScript, TypeScript, React, REST, Docker, Kubernetes, Helm, NoSQL, SQL, AWS, Linux, GitLab CI/CD, TIG Stack, Web Services
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2d
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Health Python Programmer - Junior
United States
$70k-$104k/yr RemoteFull Time
LMI
LMI: Delivers management, technology, and analytics solutions for federal agencies.
2+ YOEBachelor's in CS/Software Engineering; 2+ years Python; SQL/NoSQL; Git; Agile; unit/integration testing.
PySpark, Pandas, NumPy, Polars, SQL, NoSQL, Git, Snowflake
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1h
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Junior Software Engineer
Norfolk, Virginia, United States
OnsiteFull Time
WR Systems
WR Systems: Provides engineering and technical services for maritime mission-critical systems.
3+ YOEBachelor's in CS/CE/Math/Physics; 3+ years software development; OO languages (Java/Python/C++); SDLC/Agile; strong problem-solving.
Java, Python, C++
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3w
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Junior Software Engineer
Fort Belvoir, Virginia, United States
OnsiteFull Time
Trideum
Trideum: Provides engineering and technical services for defense and government sectors.
Bachelor's in CS/Engineering or related field; US citizenship and ability to obtain/maintain a secret clearance; Java, C++, or Python; knowledge of SDLC; strong problem-solving and teamwork; up to 25% travel.
Java, C++, Python
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2w
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Junior Software Developer, Hypervelocity/C++
Dahlgren, Virginia, United States
$90k-$110k/yr OnsiteFull Time
Amentum
AmentumNYSE: AMTM: Provides engineering, technology, and mission support to government agencies.
2+ YOEBS in computer science or related field or equivalent experience; 2+ years experience; active SECRET clearance; Valid Real ID driver license; willingness to travel locally; experience in C++ (1+ years) with Python and Java; familiarity with development tools.
C++, Python, Java, Podman/Docker, JFrog, JUnit, Jenkins, Git, GitLab, JIRA, Bitbucket, Confluence
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3mo
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Junior Software Engineer – Scientific Computing (C++)
United States
$80k-$120k/yr RemoteFull Time
Axle Informatics
Axle Informatics: Provides bioscience and IT solutions for biomedical research.
1+ YOE1–3 years software development; strong C++ skills; experience with LLM-based tools; Linux experience; Python scripting; collaborative, fast-moving environment.
C++, Linux, Python, LLM tools, GitHub Copilot, Claude, GPT-4, OpenAI, Cursor
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3w
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Junior Software Engineer - Intern
Fairfax, Virginia, United States
OnsiteInternship
ECS
ECSNYSE: ASGN: Provides advanced technology and engineering services to government agencies.
US Citizen; pursuing Bachelor's or Master’s in Computer Science or Engineering; programming in Python, C++, Java; Linux familiarity; strong teamwork, writing, and presentation skills; ability to learn quickly in a fast-paced environment; self-motivated.
Python, C++, Java, Linux
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2mo
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Junior QA Engineer
United States
RemoteFull Time
Teak
Teak: Provides refund protection and checkout flexibility for live events.
0+ YOEEntry-level QA role requiring basic testing knowledge, strong documentation, and willingness to learn.
Playwright, Python, Typescript, JIRA, TestRail
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1mo
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Junior Software Engineer
Ashburn, Virginia, United States
OnsiteFull Time
Cardinal Technology Systems
Cardinal Technology Systems: Provides cybersecurity and IT solutions to government agencies.
3+ YOEBachelor’s degree required; 3+ years experience; CBP suitability eligibility; databases, web apps, and interfaces; strong communication.
Python, SQL, Java
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2mo
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Junior Data Engineer
United States
RemoteFull Time
Cyntegrity
Cyntegrity: AI-driven risk management software for clinical trial quality monitoring.
1+ YOEEntry-level data engineer with 1+ years programming experience; Python/.NET C#/JavaScript; data analysis; JSON/XML/CSV; SQL/MongoDB; ETL; CDISC; CFR 21 Part 11; Docker; Linux; Azure; strong communication.
Python, C#, JavaScript, JSON, XML, CSV, SQL, MongoDB, ETL, CDISC, CFR 21 Part 11, Docker, Linux, Azure
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1w
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Junior Software Engineer
Chantilly, Virginia, United States
OnsiteFull Time
Bridge Core
Bridge Core: Provides technical services and cybersecurity solutions to government agencies.
3+ YOEBS degree with 3-5 years of experience; Java/Springboot/AWS; REST APIs; Linux; scripting; Git; CloudFormation; PKI is desirable.
Java, Spring, AWS, Git, CloudFormation, Docker, Kubernetes, PostgreSQL, MySQL, Linux, Python, Bash, XML, JSON, YAML
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1w
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Full Stack Developer, Junior
McLean, Virginia, United States
$53k-$108k/yr HybridFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Consulting and technology services for government and commercial clients
1+ YOEJunior full stack developer with 1+ years of software engineering experience; bachelor's degree; ability to obtain Secret clearance; proficiency in front-end and back-end languages; experience with Agile environment.
Java, Python, C#, C, C++, NET, JavaScript, React, NodeJS, PHP, Drupal
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2d
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Junior AI Developer
United States
RemoteFull Time
BenGen
BenGen: Venture studio developing and operating digital marketing and MarTech companies.
0+ YOEEntry-level position requiring a bachelor’s or master’s in CS/Data Science/AI; strong Python with PyTorch/TensorFlow/JAX; familiarity with LLMs, RAG, and fine-tuning; problem-solving and action-oriented mindset.
Python, PyTorch, TensorFlow, JAX
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2w
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Jr Full Stack Developer (Python/React.js)
Reston, Virginia, United States
$70k-$100k/yr OnsiteFull Time
Inadev
Inadev: Provides digital engineering and AI solutions to government and businesses.
2+ YOEBachelor's in CS/Engineering; 2+ yrs Python and React; experience with AI-assisted development; microservices; Agile/Jira; US citizen; located in DC metro area.
Python, React.js, GitHub Copilot, Microservices, JIRA, AWS, Docker, Kubernetes, PostgreSQL, MongoDB, DynamoDB
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1mo
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Junior Systems Engineer
Chantilly, Virginia, United States
OnsiteFull Time
Arcfield
Arcfield: Systems engineering and mission support for defense and space.
3+ YOE2-4 years BS or 0-2 years MS; TS/SCI with Poly; BS in systems engineering or related STEM; space-based remote sensing familiarity; digital engineering concepts; strong communication; business acumen; collaborative mindset.
SysML, UAFML, STK, Python, Groovy, C++, Java, Jira, Confluence, Bitbucket
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2w
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Software Engineer, Junior
McLean or Alexandria
$55k-$126k/yr OnsiteFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Provides technology and management consulting services to diverse organizations.
2+ YOETwo+ years in software development with React/Angular/Python; OO, REST/microservices; AI systems knowledge; ability to obtain Secret clearance; Bachelor's degree.
React, Angular, Python, REST, Microservices, MLflow, Kubernetes, Docker, Jenkins, SQL, NoSQL, AWS
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1mo
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Modernization Engineer (Junior)
Manassas, Virginia, United States
OnsiteFull Time
Spear AI
Spear AI: Develops AI software and sensors for maritime defense operations.
0+ YOESoftware engineer with Rust, C/C++, Docker/Kubernetes, CI/CD, Terraform or Pulumi, Python; Kafka/Redpanda experience; IoT, GIS a plus; passionate about code quality and performance.
C/C++, Rust, Kafka/Redpanda, Docker, Kubernetes, CI/CD, Terraform, Pulumi, Python
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6d
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Junior Software Developer
Fort Belvoir, Virginia, United States
OnsiteFull Time
Applied Research Associates
Applied Research Associates: Provides scientific research and engineering solutions for complex problems.
2+ YOEBS/MS in CS/Software Eng; 2+ years experience or MS; proficient in Java, Python, Golang; web tech HTML/CSS/JS and frameworks (Angular, Vue, React); Agile, Git, CI/CD; strong documentation.
Java, Python, Golang, HTML, CSS, JavaScript, Angular, Vue, React, Git, CI/CD, Docker, Kubernetes, PostgreSQL, MySQL, Redis, MongoDB
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2mo
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Junior RF Electrical Engineer - Poly Req'd
Herndon or Washington or Quantico
OnsiteFull Time
Patriot Group International
Patriot Group International: Global mission support and intelligence services for government agencies.
0+ YOEBachelor's in Electrical Engineering; MATLAB/Python proficiency; RF propagation modeling; electronics testing; briefing and reporting.
MATLAB, Python, spectrum analyzers, signal generators, voltage meters, continuity testers
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5d
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Third Sector Intelligence, Inc. - Junior Data Engineer
United States
$90k-$105k/yr RemoteFull Time
Third Sector Intelligence (3Si)
Third Sector Intelligence (3Si): Data analytics platform for early childhood social programs.
1+ YOE1-3 years experience in data engineering or related role; strong Python and SQL; cloud experience; ETL, data modeling; unit testing; good communication; able to work in agile teams.
Python, SQL, Cloud, Workflow orchestration, ETL, Data modeling, Unit testing
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2mo
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Junior RF Electrical Engineer - Poly Req'd
Washington or Quantico or Herndon
OnsiteFull Time
Patriot Group International
Patriot Group International: Provides mission support and security services to the defense sector.
Bachelor's in Electrical Engineering; MATLAB/Python; RF propagation and spectrum analysis; testing electronics; briefing and presenting to technical/non-technical audiences.
MATLAB, Python, Spectrum Analyzer, Signal Generator, Voltmeter, Network Tester, RF testing equipment
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1mo
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Junior Vulnerability Automation Engineer
United States
RemoteFull Time
Flashpoint
Flashpoint: Provides actionable threat intelligence and risk mitigation software.
0+ YOEEntry-level candidate with CS fundamentals; experience with Python; interest in web scraping; ability to work with distributed data systems; strong analytical and problem-solving skills.
Python, Git, Apache Airflow, NiFi, PostgreSQL, Relational databases
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3mo
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Junior Aerospace Digital Forensics Engineer
Sterling, Virginia, United States
$67k-$133k/yr OnsiteFull Time
CACI
CACINYSE: CACI: Provides expertise and technology for US government national security missions.
Bachelor's degree in STEM; proficiency in Python, C++, Rust, SQL, Matlab; strong math; ability to obtain TS/SCI; willing to work onsite in Sterling, VA.
Python, C++, Rust, SQL, Matlab
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1mo
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Junior Site Reliability Engineer
United States
$95k-$110k/yr RemoteFull Time
Coalfire
Coalfire: Provides cybersecurity advisory, assessment, and technical testing services.
2+ YOE2+ years in production operations; strong cloud, IaC, automation skills; experience with AWS/Azure/GCP; scripting; collaboration and communication abilities.
AWS, Azure, GCP, Terraform, Ansible, Jira, ServiceNow, Splunk, Elastic Stack, Bash, Python, PowerShell
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2w
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Junior Palantir / Maven Product Engineer
Herndon, Virginia, United States
OnsiteFull Time
NetCentrics
NetCentrics: Secures government infrastructure through cybersecurity and IT services.
3+ YOEBachelor’s degree in CS/Engineering/Data Science or related field; 1–3 years software/data engineering; Python/Java/Go/TypeScript; cloud infra AWS/Azure/Kubernetes; secure environments; Secret clearance; TS/SCI eligibility.
Python, Java, Go, TypeScript, AWS, Azure, Kubernetes
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2d
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Data Engineer - Junior
Quantico, Virginia, United States
$94k-$157k/yr OnsiteFull Time
American Systems
American Systems: Providing strategic engineering and IT solutions for government programs.
0+ YOE0–3 years in data engineering; SQL and Python; bachelor’s in CS/IS/Engineering/Data Science; active TS/SCI clearance.
SQL, Python, Relational Databases
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1mo
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Software Engineer - Java, Python, node.js, JavaScript, HTML (2026-0065)
Reston, Virginia, United States
OnsiteFull Time
Acclaim Technical Services
Acclaim Technical Services: Provides language and intelligence services to U.S. federal agencies.
2+ YOEBachelor's degree in engineering or related field; 2+ years software engineering experience; proficiency in Java, Python, Node.js, JavaScript, HTML.
Java, Python, Node.js, JavaScript, HTML
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2w
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Data Engineer (Junior)
Arlington, Virginia, United States
$72k-$75k/yr OnsiteFull Time
ProSoDel
ProSoDel: Provides IT, logistics, and management services to government agencies.
3+ YOEBachelor's degree with at least 3 years relevant experience; Python experience (Pandas/Polars/Scikit-Learn); knowledge of data structures/algorithms; willing to travel domestically and internationally; able to work with diverse stakeholders.
Python, Pandas, Polars, Scikit-Learn, Power BI
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2w
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Junior Data Engineer
McLean or Arlington
OnsiteFull Time
Guidehouse
Guidehouse: Provides management and technology consulting services to diverse organizations.
3+ YOEBachelor’s degree; 3 years data engineering/ETL with SQL/Python; experience with connectors; ability to obtain/maintain federal clearance; strong communication.
SQL, Python, R, ETL/ELT, Collibra, Alation, Azure Purview, AWS Glue
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1w
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Junior Developer/IT Support (Part Time Student)
North America
RemoteFull Time
US Property Consultants
US Property Consultants: Provides management and construction services for multifamily residential properties.
2+ YOEFront-line IT support and software development with Python/PowerShell, SQL, scripting; Windows admin; HR/payroll system familiarity.
Python, PowerShell, JavaScript, Git, GitHub, HTML, CSS, REST, APIs, SQL, Windows, Office Suite, Apex Payroll, Time & Attendance, HRIS
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1mo
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Junior Full Stack Software Engineer (DevSecOps)
Herndon, Virginia, United States
$80k-$128k/yr OnsiteFull Time
Peraton
Peraton: National security and mission-critical government technology services provider.
2+ YOEBachelor’s or Master’s in relevant field; 2+ years of experience; active TS/SCI with poly; proficiency in Java, Python, JavaScript; REST/JSON; Docker; AWS; CI/CD.
React, Angular, Java, Python, FastAPI, Flask, PostgreSQL, MongoDB, DynamoDB, Elasticsearch, AWS, Docker, Kubernetes, Jenkins, GitLab CI, GitHub Actions, Terraform, CloudFormation, Cypress, Selenium, JUnit, Pytest, Jest, Confluence, Jira, OAuth, JWT, Swagger, REST API
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1w
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Data Engineer, Junior
Reston, Virginia, United States
OnsiteFull Time
Chopine Analytic Solutions
Chopine Analytic Solutions: Provides intelligence analysis and operational support to defense agencies.
0+ YOEBachelor's in STEM; 0-5 years experience; data engineering, data analysis, statistics; TS/SCI with CI Polygraph clearance.
Python, R, SAS, SPSS, S-PLUS, SQL
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2d
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Junior DevOps Engineer
United States
RemoteFull Time
Kolbe Academy
Kolbe Academy: Provides classical Catholic K-12 homeschooling curriculum and online courses.
Associate degree or equivalent experience; scripting, networking, REST APIs; security practices; Git; cloud, containers, ETL; education-technology experience preferred.
Python, PowerShell, Bash, TCP/IP, DNS, VPN, REST APIs, Git, AWS, Azure, Docker, Kubernetes, ETL
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3w
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Software Developer I
United States
RemoteFull Time
ITA International
ITA International: Provides professional services and data analytics for defense operations.
2+ YOE2+ years software development experience; strong Python/Java; capable of writing unit tests and collaborating with teams.
Python, Java, Git
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1mo
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0to1 Engineer
United States
$200k-$227k/yr RemoteContract
Mozilla
Mozilla: Developing open-source web browsers and digital privacy tools.
Prototyping and software development for open source AI; strong Python/TypeScript; experience with AI tooling and APIs; ability to work in public and open repositories.
Python, TypeScript, Open source AI stack, APIs, Cursor, Claude Code
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2mo
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Junior RF Electrical Engineer - Poly Req'd
Washington or Quantico or Herndon
OnsiteFull Time
Patriot Group International
Patriot Group International: Providing specialized security and mission support for defense and intelligence.
Bachelor's in Electrical Engineering; proficiency in MATLAB/Python; RF propagation and spectrum analysis; testing with test equipment; ability to brief technical/non-technical audiences.
MATLAB, Python, Spectrum Analyzers, Signal Generators, Voltage Meters, Network and Cable Continuity Tests
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2w
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Cyber Engineer
Sterling, Virginia, United States
OnsiteFull Time
Nightwing
Nightwing: Provides advanced cyber and intelligence solutions for national security.
Bachelor's degree in STEM/Computer Science or related field; U.S. citizenship with ability to obtain security clearance; experience in C/C++ or Python; Windows/Linux development.
C, C++, Python, Windows, Linux
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HiringCafe market data

Junior Python Developer Jobs market signals in Virginia, United States

These signals come from live HiringCafe job inventory, not a static article. Use them to compare the market, then open listings above to apply directly.

Open jobs
350+
Hiring companies
230+
Fresh sample
58% new in 30d
Salary visibility
42% show pay

Companies appearing in this market

Booz Allen HamiltonCACIPrescient EdgeECSInadevPatriot Group InternationalAltamira TechnologiesAmentum

Work location mix in visible results

Onsite: 39Remote: 14Hybrid: 7

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