📣 HiringCafe is hiring a Founding Growth Hacker! Learn More · Apply here
Junior Python Developer Jobs in Mayo, MD, US
290+ junior python developer jobs from 160+ companies hiring in Mayo, MD, US.
1mo
Save
Mark Applied
Hide
Junior Software Engineer (Python)
Columbia, Maryland, United States
$115k-$160k/yr OnsiteFull Time
3+ YOEBachelor's degree in a technical field; 3 years software development; strong Python; production applications; AI concepts; Kafka; collaboration with analysts.
Python, PydanticAI, LangGraph, Apache Kafka, Elasticsearch
1mo
Save
Mark Applied
Hide
Junior Developer
Rosslyn, Virginia, United States
OnsiteFull Time
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
2mo
Save
Mark Applied
Hide
Junior CNO Developer (Onsite)
Annapolis Junction, Maryland, United States
OnsiteFull Time
1+ YOEBachelor's degree or 4 years of related experience; 1 year programming in Assembly, C, C++, Java, Perl, or Python; 1+ year development in Windows/.NET or UNIX environments.
Python, C, C++, Java, Perl, Assembly, PowerShell, Bash, Visual Studio, .NET, Git, IDA Pro, Ghidra, OllyDbg
1mo
Save
Mark Applied
Hide
Junior Cloud Developer
McLean, Virginia, United States
OnsiteFull Time
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
3w
Save
Mark Applied
Hide
Junior Software Developer
Chantilly or McLean
OnsiteFull Time
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
2w
Save
Mark Applied
Hide
Junior Software Engineer
Fort Belvoir, Virginia, United States
OnsiteFull Time
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
2w
Save
Mark Applied
Hide
Junior Software Developer, Hypervelocity/C++
Dahlgren, Virginia, United States
$90k-$110k/yr OnsiteFull Time
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
2mo
Save
Mark Applied
Hide
Junior Software Engineer
Baltimore, Maryland, United States
OnsiteFull Time
Bachelor’s degree in Computer Science or Information Systems; experience with Python, Java, C++, Ruby, or JavaScript; experience leading all SDLC phases; data integration experience; ability to gather requirements and work with users; available for non-traditional hours.
Python, Java, C++, Ruby, JavaScript, SQL, AWS S3, AWS Lambda, AWS SQS, Django, R
2mo
Save
Mark Applied
Hide
AWS Connect Developer - Junior
Washington, District of Columbia, United States
HybridFull Time
2+ YOEJunior AWS Connect Developer with 2 years Python and AWS experience; US Citizenship; Public Trust; hybrid in DC; Terraform preferred.
Python, AWS, Lambda, S3, DynamoDB, Git, GitLab, Terraform
3w
Save
Mark Applied
Hide
Junior Software Engineer - Intern
Fairfax, Virginia, United States
OnsiteInternship
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
1mo
Save
Mark Applied
Hide
Junior Software Engineer
Annapolis Junction, Maryland, United States
$95k-$105k/yr OnsiteFull Time
Bachelor’s degree or equivalent experience; basic programming knowledge; familiar with Git; strong problem-solving and communication skills.
Git, Java, Python, JavaScript, C#
1w
Save
Mark Applied
Hide
Cleared Junior Software Engineer
Annapolis Junction, Maryland, United States
OnsiteFull Time
3+ YOEActive TS/SCI clearance with Full Scope Polygraph; 3+ years of experience; bachelor's degree in a technical discipline; experience with Python, JavaScript, or Java; familiarity with databases and version control; strong communication.
Python, JavaScript, Java, Databases, Git
3w
Save
Mark Applied
Hide
Junior Agile Developer
Annapolis Junction, Maryland, United States
$129k-$165k/yr OnsiteFull Time
3+ YOETop Secret clearance with Full Scope Poly, U.S. citizenship, Bachelor's degree or equivalent, 3 years of relevant experience (or Master's plus 1 year), active TS clearance with CI poly within last 5 years.
Java, Spring Boot, Python, AWS, Maven, GitLab, GitOps, Kubernetes, Docker, Ansible, NoSQL, MongoDB, DynamoDB, OAuth, OIDC, Cypress, Cucumber
1mo
Save
Mark Applied
Hide
Junior Full Stack Engineer
Baltimore, Maryland, United States
$78k-$101k/yr RemoteFull Time
4+ YOEJunior full stack developer with 4+ years experience (Bachelor’s) or Master’s with 2+ years; US work authorized; strong SQL and Python; AWS/DevSecOps familiarity; government agency experience a plus.
AWS, PostgreSQL, Aurora, S3, Secrets Manager, SSM, CI/CD
1w
Save
Mark Applied
Hide
Full Stack Developer, Junior
McLean, Virginia, United States
$53k-$108k/yr HybridFull Time
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
3w
Save
Mark Applied
Hide
Junior Computer Scientist/Engineer
Aberdeen, Maryland, United States
$75k-$131k/yr OnsiteFull Time
2+ YOEBachelor's in engineering or related field with 2 years software development experience; programming in Python/C++/Java; SECRET clearance required.
Python, C++, Java, Cloud platforms
2w
Save
Mark Applied
Hide
Jr Full Stack Developer (Python/React.js)
Reston, Virginia, United States
$70k-$100k/yr OnsiteFull Time
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
1w
Save
Mark Applied
Hide
Software Engineer, Junior
McLean or Alexandria
$55k-$126k/yr OnsiteFull Time
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
5d
Save
Mark Applied
Hide
Junior Software Developer
Fort Belvoir, Virginia, United States
OnsiteFull Time
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
5d
Save
Mark Applied
Hide
Software Engineer - Junior Level
Annapolis Junction, Maryland, United States
$98k-$123k/yr HybridFull Time
Bachelor's in CS or related field or 4 years software engineering exp; TS/SCI with Poly; Agile; Jira/Confluence; Git; Java/C++/Python; Postgres.
Git, Java, C++, Python, PostgreSQL, Jira, Confluence, Docker, Kubernetes, Nginx, HAProxy, Elastic Stack
2mo
Save
Mark Applied
Hide
Junior RF Electrical Engineer - Poly Req'd
Herndon or Washington or Quantico
OnsiteFull Time
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
5d
Save
Mark Applied
Hide
Software Engineer - Junior Level
Annapolis Junction, Maryland, United States
$98k-$123k/yr HybridFull Time
0+ YOEBachelor's in CS or related field or 4 years of software engineering experience; TS/SCI with poly; Agile, Jira/Confluence; experience with Java/C++/Python, Git, Postgres; AWS preferred.
Git, Java, C++, Python, PostgreSQL, Jira, Confluence, AWS, Docker, Kubernetes, HAProxy, Nginx, Elastic Stack
2mo
Save
Mark Applied
Hide
Junior RF Electrical Engineer - Poly Req'd
Washington or Quantico or Herndon
OnsiteFull Time
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
3w
Save
Mark Applied
Hide
Junior C# Software Engineer
Bethesda, Maryland, United States
$67k-$133k/yr HybridFull Time
0+ YOEEntry-level C# and Python software engineer with US citizenship, secret clearance, and a BS in CS/SE/aerospace; 0-3 years; strong problem solving and communication.
C#, Python
2mo
Save
Mark Applied
Hide
Junior Cloud DevSecOps Engineer
Washington, District of Columbia, United States
HybridFull Time
0+ YOEAssociate degree or equivalent in cybersecurity/IT; 0-2 years IT/cybersecurity; familiarity with Azure and AWS; basic knowledge of Entra ID, IAM, MFA, networking; US citizenship and ability to obtain security clearance.
Microsoft Azure, Amazon Web Services, Microsoft Entra ID, Microsoft Defender for Cloud, Azure Policy, Terraform, ARM, CloudFormation, PowerShell, Python, Bash, Microsoft Sentinel, AWS Security Hub, GuardDuty, IAM
2w
Save
Mark Applied
Hide
Junior Palantir / Maven Product Engineer
Herndon, Virginia, United States
OnsiteFull Time
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
1mo
Save
Mark Applied
Hide
Software Engineer Junior Level
Linthicum, Maryland, United States
$100k-$200k/yr OnsiteFull Time
7+ YOETS/SCI with polygraph; 7+ years SWE experience; Bachelor’s in CS or related field with 4 years’ experience substitution; strong analytics; Pig; PySpark.
Pig, PySpark, Python, Java, Scala, NiFi, Ansible
1mo
Save
Mark Applied
Hide
Software Engineer - Java, Python, node.js, JavaScript, HTML (2026-0065)
Reston, Virginia, United States
OnsiteFull Time
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
2w
Save
Mark Applied
Hide
Data Engineer (Junior)
Arlington, Virginia, United States
$72k-$75k/yr OnsiteFull Time
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
1w
Save
Mark Applied
Hide
Junior Data Engineer
McLean or Arlington
OnsiteFull Time
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
1w
Save
Mark Applied
Hide
Junior/Mid Full Stack Software Engineer
Bethesda, Maryland, United States
RemoteFull Time
1+ YOE1–4 years experience; strong Python; React/Next.js; APIs (GraphQL/REST); Docker; Linux; authentication; automated testing; full-stack exposure.
Python, React, Next.js, GraphQL, REST, Docker, Linux, Selenium, Testing frameworks
1mo
Save
Mark Applied
Hide
Junior Full Stack Software Engineer (DevSecOps)
Herndon, Virginia, United States
$80k-$128k/yr OnsiteFull Time
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
1w
Save
Mark Applied
Hide
Data Engineer, Junior
Reston, Virginia, United States
OnsiteFull Time
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
2mo
Save
Mark Applied
Hide
Junior RF Electrical Engineer - Poly Req'd
Washington or Quantico or Herndon
OnsiteFull Time
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
2w
Save
Mark Applied
Hide
Summer 2026 Software Developer Internship
Annapolis Junction, Maryland, United States
$26-$35/hr OnsiteInternship, Full Time
0+ YOEC/C++, JavaScript, Java, Python software development; 0+ years experience; US citizenship.
Python, Java, C/C++, Rust, JavaScript, TypeScript
2mo
Save
Mark Applied
Hide
Associate CNO Software Engineer
Hanover, Maryland, United States
OnsiteFull Time
4+ YOEBS in technical discipline or HS diploma with 4+ years in software development; Python or C/C++; troubleshooting.
Python, C, C++
3w
Save
Mark Applied
Hide
Software Engineer
Columbia, Maryland, United States
$70k-$190k/yr OnsiteFull Time
3+ YOEEntry-level Software Engineer with Python proficiency; TS/SCI with polygraph; 3 years experience or 4 years substituted for a B.S.; strong software development background.
Python, Apache Kafka, Elasticsearch, PydanticAI, Langgraph, DeepAgents
4d
Save
Mark Applied
Hide
Software Engineer 1 (API)
Hanover, Maryland, United States
OnsiteFull Time
Python development with Django/Flask, REST endpoints, and database experience (MongoDB/MariaDB); cloud and containerization skills preferred.
Python, Django, Flask, MongoDB, MariaDB, REST, Microservices, Swagger, AWS, Docker, Visual Studio Code, JSON, XML, Jira, Confluence, Git, Agile
4d
Save
Mark Applied
Hide
Junior RF Analyst
Springfield or Chantilly
OnsiteFull Time
Master’s with 1 year experience or Bachelor’s with 2 years, or no degree with 4 years; TS/SCI clearance with adjudicated polygraph; RF/EMI concepts and test experience; ability to develop plans and analyze results.
MATLAB, Python, Excel
2w
Save
Mark Applied
Hide
Summer 2026 Software Developer Internship
Annapolis Junction, Maryland, United States
$26-$35/hr OnsiteInternship
General Dynamics Information TechnologyNYSE: GD: Provides mission-critical IT services to government and defense organizations.
0+ YOE0+ years of related experience; US citizenship; programming in Python/Java/C/C++/JavaScript; knowledge of software development lifecycle; collaborative teamwork.
Python, Java, C/C++, Rust, JavaScript/TypeScript
HiringCafe market data
Junior Python Developer Jobs market signals in Mayo, MD, US
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
290+
Hiring companies
160+
Fresh sample
56% new in 30d
Salary visibility
58% show pay
Companies appearing in this market
Booz Allen HamiltonBoeing Intelligence & AnalyticsAmentumCACIKBRPrescient EdgeQueveraGDIT
Work location mix in visible results
Onsite: 68Hybrid: 12Remote: 4