93 junior python developer jobs at 30 companies in Mason, OH

PromotedHiringCafe
Founding Backend / Infra Engineer
Cupertino, CA, US
$160k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Own the crawlers, pipelines, and infrastructure powering a real-time job search engine. Strong Node.js and Python fundamentals; bonus points for security and reverse-engineering chops.
Node.js, Python, Elasticsearch, Redis
PromotedHiringCafe
Founding Full-stack / Product Engineer
Cupertino, CA, US
$130k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Help us build a 100× better job search engine. We need a full-stack engineer with great taste, sharp fundamentals, and a track record of shipping polished product on React/Next.js plus a real backend (Firebase, Elasticsearch, Redis, Stripe).
React, Next.js, TypeScript, Firebase, Elasticsearch, Redis, Stripe
3mo
Save
Mark Applied
Hide
Junior Reverse Engineer
Beavercreek Township, Ohio, United States
$80k-$115k/yr OnsiteFull Time
KBR
KBRNYSE: KBR: Provides engineering, technology, and professional services for global markets.
0+ YOEBachelor's degree; 0-7 years reverse engineering; strong knowledge of computer architecture, OS, software dev; C/C++, Python; debugging; network protocols; ability to obtain security clearance.
IDA Pro, Ghidra, Binary Ninja, C, C++, Python, Debugging Tools
2mo
Save
Mark Applied
Hide
Junior Software Developer
Beavercreek or Dayton
OnsiteFull Time
Parallax Advanced Research
Parallax Advanced Research: Conducts advanced research and develops technology for government and academic clients.
6+ YOEActive TS/SCI clearance; 6+ years software development; BS in Computer Science or related field; Python, Java, C++, Go, Rust, JavaScript/TypeScript, SQL/NoSQL; TensorFlow/PyTorch; DevSecOps tools; cloud platforms; ML/AI experience; secure coding practices.
Python, Java, C++, Go, Rust, JavaScript, TypeScript, SQL, NoSQL, TensorFlow, PyTorch, Matplotlib, OpenCV, Docker, Kubernetes, Jenkins, GitLab CI/CD, Terraform, Ansible, Security Scanning, AWS, Azure, GCP, MLOps
1mo
Save
Mark Applied
Hide
Software Engineer, Junior
Dayton, Ohio, United States
OnsiteFull Time
Skyline Scientific
Skyline Scientific: Specialized engineering and analytical services for remote sensing systems.
3+ YOEBachelor's in a STEM field (or equivalent), 3+ years in algorithm development/scientific computing or ML workflow support, strong Python programming, familiarity with Git/GitLab/Bitbucket/Jira/Jenkins, U.S. citizenship and ability to obtain security clearance.
Python, Windows, Linux, Git, GitLab, Bitbucket, Jira, Jenkins
3w
Save
Mark Applied
Hide
Junior Data Engineer
Cincinnati, Ohio, United States
OnsiteFull Time
Medpace
MedpaceNasdaq: MEDP: Full-service clinical contract research organization for medical development.
Bachelor's in CS/Data Science, internship or entry-level data/software engineering experience; knowledge of Snowflake, SQL, ETL/ELT (dbt, ADF, SSIS), Power BI, REST APIs; Python and C#/Azure are a plus.
Snowflake, ANSI SQL, SQL Server, T-SQL, dbt, Azure Data Factory, SSIS, Microsoft Power BI, Fivetran, Python, REST API, C#, Azure
2mo
Save
Mark Applied
Hide
Junior Data Engineer
Cincinnati, Ohio, United States
OnsiteFull Time
Medpace
MedpaceNASDAQ: MEDP: Conducts clinical trials for biotechnology and pharmaceutical companies.
Bachelor's in CS/Data Science or related, internship or entry-level data/software engineering experience. Knowledge of Snowflake, SQL, ETL/ELT (dbt, Azure Data Factory, SSIS), Power BI, SQL Server/T-SQL; Python, Fivetran, REST API, C#/Azure preferred.
Snowflake, ANSI SQL, SQL Server, T-SQL, dbt, Microsoft Azure Data Factory, SSIS, Microsoft Power BI, Fivetran, Python, REST API, C#, Microsoft Azure
5d
Save
Mark Applied
Hide
Junior Software Engineer
Dayton, Ohio, United States
OnsiteFull Time
DCS Corporation
DCS Corporation: Providing engineering and technical services for national security.
2+ YOEU.S. citizen able to obtain Secret clearance. BS in CS/CE or related, 2 years related experience (or MS with 1 year). Experience with automated testing, containers, CI/CD, Linux, Git, and Agile.
Java, C, C++, Python, Linux, Git, Kubernetes, CONAN, CMake, CI/CD, container orchestration, containerized deployments, containerized environments, UDP, TCP/IP, MBSE, AGILE
4d
Save
Mark Applied
Hide
Software Engineer -ACL-Dayton, OH - Open Rank (Junior-Mid Level)
Dayton, Ohio, United States
OnsiteFull Time
Georgia Tech Research Institute
Georgia Tech Research Institute: Performs applied scientific research and engineering for various organizations.
2+ YOEBachelor's in Math/CS/Physics/EE, ability to obtain DoD security clearance, programming experience (Java, JavaScript, C/C++, C#, Ruby, Python, Scala, Groovy), CI/CD/DevOps and distributed systems knowledge, U.S. citizenship required.
Java, JavaScript, C, C++, C#, Ruby, Python, Scala, Groovy, MATLAB, Continuous Integration/Continuous Delivery (CI/CD), DevOps, API
3w
Save
Mark Applied
Hide
Software Engineer
Beavercreek, Ohio, United States
$69k-$158k/yr HybridFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Consulting and technology services for government and commercial clients
2+ YOE2+ years software development experience, Secret clearance required, Bachelor's degree or 5+ years experience in lieu of degree, experience with full-stack development and languages such as Java, Python, C#, C, C++, .NET, JavaScript, React, NodeJS, PHP, Drupal.
Java, Python, C#, C, C++, .NET, JavaScript, React, NodeJS, PHP, Drupal
2mo
Save
Mark Applied
Hide
Radar Software Engineer - Jr/Mid/Sr - 28356 * (Dayton Wright-Patterson AFB, O, Ohio, United States)
Dayton, Ohio, United States
$78k-$168k/yr OnsiteFull Time
HII
HIINYSE: HII: Builds naval ships and provides global defense technology solutions.
Radar software development across junior to senior levels; C++/Python; embedded real-time; security clearance; at WPAFB, Ohio.
C++, Python, MATLAB, Linux, Real-Time OS, GitLab, Docker, Kubernetes
5d
Save
Mark Applied
Hide
AI Engineer
Cincinnati, Ohio, United States
$100k-$140k/yr OnsiteFull Time
Kaleidoscope Innovation
Kaleidoscope Innovation: Designs and develops medical devices and consumer products.
Experience building AI/LLM-based agents, Python development, cloud AI services (Azure or AWS), REST API and contact center/IVR integration experience; healthcare domain preferred.
Python, Azure AI Services, AWS, REST APIs, IVR
1mo
Save
Mark Applied
Hide
MODEL BASED SYSTEMS ENGINEER- JUNIOR (MBSE)
Beavercreek or Huntsville or Colorado Springs or Crestview or Tupelo
OnsiteFull Time
Sentry Construction
Sentry Construction: Provides general contracting and comprehensive property maintenance services.
Top-Secret clearance (SCI eligibility), BS in systems engineering/aerospace or related field, MBSE tool experience (Cameo, MagicDraw, Rhapsody, Enterprise Architect), SysML, and familiarity with Java/C++/Python preferred.
Cameo Systems Modeler, MagicDraw, IBM Rhapsody, Enterprise Architect, SysML, Java, C++, Python, DoD Architecture Framework (DoDAF), Unified Architecture Framework (UAF)
1mo
Save
Mark Applied
Hide
Software Developer
Dayton, Ohio, United States
OnsiteFull Time
Modern Technology Solutions
Modern Technology Solutions: An employee-owned engineering services providing modeling, simulation, cybersecurity, AI, and mission assurance solutions to defense and national security customers.
2+ YOEBachelors in CS/Engineering, 2+ years C++ development, modeling & simulation experience, Windows/Linux development, OOP and design patterns, Git, active Top Secret/SCI clearance required.
C++, Windows, Linux, Git, EAAGLES, Google Test, Catch2, Python, Lua, Jira, Confluence
4w
Save
Mark Applied
Hide
Software Engineer
Beavercreek or Arlington
$69k-$158k/yr OnsiteFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Provides technology and management consulting services to diverse organizations.
2+ YOE2+ years software development experience, Secret clearance required, Bachelor’s degree or 5+ years experience in lieu of degree, proficiency with back-end and front-end languages; experience with Java, Python, C#, C/C++, .NET, JavaScript, React, NodeJS, PHP, or Drupal is a plus.
Java, Python, C#, C, C++, .NET, JavaScript, React, NodeJS, PHP, Drupal
1mo
Save
Mark Applied
Hide
AI Automation Engineer
Cincinnati, Ohio, United States
OnsiteFull Time
CBT Company
CBT Company: Distributes industrial automation, electrical, and mechanical manufacturing equipment.
2+ YOE2+ years software development or technical solution experience; familiarity with Python, JavaScript, C#; strong API, SQL, automation, and prompt-engineering knowledge; excellent communication; degree preferred.
Python, JavaScript, C#, SQL, LangGraph, n8n, RAG architectures, MCP, AI Skills, LLMs, vector databases, Prophet21, CRM, APIs
1mo
Save
Mark Applied
Hide
Software Developer
Dayton, Ohio, United States
OnsiteFull Time
Modern Technology Solutions, Inc.
Modern Technology Solutions, Inc.: Provides engineering, technology, and cybersecurity services for national security.
2+ YOEBachelor's in CS/Engineering, 2+ years C++ experience, modeling & simulation experience, Windows/Linux development, Git, Top Secret/SCI clearance with SAP eligibility preferred.
C++, Windows, Linux, Git, EAAGLES, Google Test, Catch2, Python, Lua, Jira, Confluence, Agile
3mo
Save
Mark Applied
Hide
AI Software Engineer
Loveland, Ohio, United States
RemoteFull Time
ERP Suites
ERP Suites: Provides managed services and cloud hosting for ERP systems.
1+ YOEEntry-level AI software engineer with Python proficiency and exposure to AI platforms.
Python, Oracle AI, AWS AI, Anthropic, OpenAI, LangChain, vector databases, RAG, MCP frameworks
3w
Save
Mark Applied
Hide
Software Engineer
Woburn or Arlington or Carlsbad or Aurora or San Diego or Boston or Dayton or Melbourne
$110k-$138k/yr HybridFull Time
Systems & Technology Research
Systems & Technology Research: Develops advanced technology for national security and defense applications.
2+ YOEBS/MS in Computer Science or related field, 2+ years (BS) or recent MS with experience; experience building maintainable Java APIs and microservices; Java 17+, Spring Boot; Linux, Docker, Kubernetes, Kafka/NATS, GitLab; Python preferred; U.S. citizenship and ability to obtain Top Secret clearance; up to 20% travel.
Java 17+, Spring Boot, Linux, Docker, Kubernetes, Kafka, NATS, GitLab, Python
4w
Save
Mark Applied
Hide
Optical Characterization Engineer
Dayton, Ohio, United States
$110k-$150k/yr OnsiteFull Time
Ravee Optics
Ravee Optics: Developing compact laser communication terminals for space-based connectivity.
0+ YOEM.S. or Ph.D. in optics/photonic/EE/physics, 2+ years (MS) or 0–2 years (PhD) optical lab experience, LabVIEW/Python automation, optical instrumentation, data analysis (Python/MATLAB), and hands-on test automation skills.
LabVIEW, Python, PyVISA, NumPy, SciPy, Pandas, MATLAB, Lumerical, Zemax, COMSOL, Git
3w
Save
Mark Applied
Hide
AI/ML Engineer
Fairborn, Ohio, United States
$140k/yr OnsiteFull Time
Altamira Technologies
Altamira TechnologiesNYSE: PSN: Provides data analytics and engineering for national security missions.
0+ YOEBachelor's in CS/Engineering (or equivalent), experience with AI/ML frameworks (TensorFlow, PyTorch, Scikit-learn, Keras), Python/C/C++/Rust, Docker, CI/CD and MLOps; ability to operate in secure, compliance-driven environments.
TensorFlow, PyTorch, Pytorch Lightning, Scikit-learn, Keras, Docker, Python, C, C++, Rust
6d
Save
Mark Applied
Hide
Software Engineer/Principal Software Engineer–Java (TS/SCI-CI Poly) (AHT)
Wright-Patterson Air Force Base, Ohio, United States
$83k-$155k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Develops and manufactures advanced aerospace, defense, and space systems.
2+ YOEActive TS/SCI with CI polygraph, 2+ years Java development experience (level dependent), STEM degree, ability to work in SCIF, strong communication and problem-solving skills.
Java, JEE, Spring, RESTful services, Python, Bash, PowerShell