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Junior Python Developer Jobs in Boulder, CO, US
100+ junior python developer jobs from 60 companies hiring in Boulder, CO, US.
1mo
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Systems Engineer I
Denver, Colorado, United States
$83k-$104k/yr RemoteFull Time
0+ YOEEntry-level hardware firmware engineer; strong in server hardware concepts; experience with firmware deployment and automation.
Ansible, Chef, Git, Python, Go, Redfish, IPMI, PXE, UEFI, Linux, BIOS, OpenBMC
17h
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Technical Support Engineer
Broomfield, Colorado, United States
$50k-$60k/yr OnsiteFull Time
Bachelor’s degree or equivalent in CS, IS, Engineering, or Cybersecurity; strong communication; foundational Linux/Windows, networking; curiosity and willingness to learn.
SIEM, Security analytics, Cloud platforms (AWS, Azure, GCP), SQL, Python, Bash, Ticketing systems
1mo
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Software Engineer 1
Boulder, Colorado, United States
$95k-$105k/yr OnsiteFull Time
Bachelor’s degree in CS, EE, CE, SE, Aerospace, Math, Physics or related field or equivalent; GPA 3.0+; basic software in C/C++/C#/Java/assembly or similar.
AWS, Kubernetes, GitLab, GitHub, Python, Java, Bash, Go, EC2, EKS
2mo
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AI Engineer I
Fort Collins, Colorado, United States
$78k-$110k/yr HybridFull Time
Bachelor's degree in CS/Software Eng or related field; experience with AI tools, OO languages, REST APIs, cloud platforms; strong problem solving and teamwork.
Python, Java, C#, JavaScript, TypeScript, REST APIs, AWS, Azure, GCP, SQL, NoSQL, CI/CD
4d
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Technical Support Engineer
Broomfield, Colorado, United States
$50k-$60k/yr OnsiteFull Time
Bachelor's degree or equivalent experience in Computer Science, Information Systems, Engineering, or Cybersecurity; strong communication and foundational troubleshooting skills.
SIEM, cloud platforms, AWS, Azure, GCP, SQL, Python, Bash, ticketing tools
6d
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AI/Machine Learning, Summer Intern (Hybrid)
Denver, Colorado, United States
$17/hr HybridInternship
Currently enrolled undergraduate (junior/senior) or graduate student in CS/DS/EE/IS; experience building AI apps; Python with ML libraries; LLM/GenAI platforms; cloud and SQL; strong communication; self-starter.
Python, NumPy, Pandas, scikit-learn, PyTorch, TensorFlow, OpenAI API, Anthropic Claude, LangChain, SQL, AWS, Azure, GCP
1mo
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ACCOUNT ENGINEER INTERN — SUMMER 2026
Denver, Colorado, United States
$33-$35/hr OnsiteInternship
Actively enrolled student; pursuing BS/MS in CS/Engineering/Math; SQL and data-architecture knowledge; strong communication; able to learn quickly; interest in cloud data and AI tools.
Python, Java, Scala, SQL, Snowflake, Snowpark, Streamlit, CI/CD tools, Orchestration tools
1mo
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Software Engineering Summer Intern (Undergrad)
Denver or New York or Remote
$20-$22/hr HybridMultiple Commitments Available
Currently enrolled in a Bachelor's program in computer science/software engineering or related field; entering junior or senior year in Fall 2026; familiar with Python and React; SQL basics; AWS helpful; strong collaboration and communication.
Python, Flask, SQLAlchemy, React, Typescript, AWS
1mo
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Summer 2026 Artificial Intelligence / Machine Learning Intern - Graduate Student
Seattle or Los Angeles or Denver
$38/hr OnsiteFull Time
Blue Origin: Develops reusable rockets and systems for human spaceflight.
0+ YOEU.S. citizen or permanent resident or asylum/refugee status; enrolled undergrad with at least one semester/quarter remaining; completed at least one year of post-high school coursework; available for full-time internship (~12 weeks); strong communication; interest in mission; ML/AI exposure plus Python/Torch skills.
Python, Torch, AWS, Git, Docker, Kubernetes, React, JavaScript, HTML, CSS
4w
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Cell Test Engineer Intern (Summer 2026)
Broomfield, Colorado, United States
$30/hr OnsiteAll Commitments Available
Undergraduate or pursuing degree in Electrical/Mechanical/Chemical Engineering, Chemistry, Physics, Materials Science; coursework in electrochemistry, thermodynamics, materials, or energy systems; strong analytical skills; ability to work independently and in a team; enthusiasm for batteries and renewable energy.
Excel, Python, MATLAB, Data acquisition systems, Battery cyclers, Environmental chambers
1mo
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Postdoctoral Scholar - Mines NIST PREP Lead Data Infrastructure Engineer
Boulder or Golden
$71k/yr OnsiteFull Time
Doctoral degree in CS, statistics, physics, or related field; proven cross-disciplinary leadership; experience in scientific computing, data management, and ML; US citizen preferred.
Python, DevOps, Docker, Kubernetes, Linux, Bash, AWS, JSON, XML, HTML, JavaScript, CSS
1w
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AI Engineering Intern
Boulder or Charlotte
$17-$25/hr OnsiteInternship
0+ YOEPursuing or recently completed BS/MS in CS/Engineering; strong Python; ML/AI familiarity; APIs and backend experience.
Python, APIs, Backend development, Machine learning, AI
4d
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Quality Assurance Intern
Cheyenne or Fort Collins or Laramie
$18-$20/hr OnsiteInternship
Pursuing a bachelor’s in an IT field or on track to finish a QA bootcamp; some software testing knowledge; Java, Python, REST, Docker helpful.
Java, Python, REST, Docker
1mo
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Fusion Internship Program – AIA Canada
Mississauga or Denver
$25/hr OnsiteInternship
Enrolled in a bachelor’s degree program in STEM; experience with Python, Java, C++, SQL; strong teamwork and communication; eligible to work in Canada; willingness to travel.
Python, Java, C++, SQL
6d
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Software Development Intern – Summer 2026
Westminster, Colorado, United States
$23-$40/hr OnsiteInternship
enrolled in a bachelor’s or master’s program in computer science or software engineering; strong Python and JavaScript/TypeScript; experience building web/desktop apps; REST APIs; databases; GPA 3.0+ desirable; prior internship or project experience preferred.
Python, JavaScript, TypeScript, REST APIs, React, Vue, Flask, FastAPI, Electron, PostgreSQL, SQLite, NoSQL
3w
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Computer Science Robotics Intern (Boulder, CO)
Boulder, Colorado, United States
OnsiteInternship
Undergrad/grad student in CS or engineering; experience with Linux, Git, C++, Python; strong collaboration and learning mindset.
Linux, Git, Command Line, C++, Python, Claude Code
1mo
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Full Stack & AI Engineering Intern - Denver
Denver, Colorado, United States
$800-$2k/mo OnsiteMultiple Commitments Available
0+ YOEInternship in software/AI engineering; strong interest in full stack development and machine learning; able to start immediately.
React, React Native, TypeScript, FERN stack, Python, FastAPI, Express, Firestore, PostgreSQL, BigQuery, Google Cloud Platform, Firebase, Cloud Functions, Pub/Sub, Cloud Run, AWS, Docker, GitHub Actions, CI/CD, TensorFlow, PyTorch, scikit-learn, OpenAI, LangChain, Twilio Segment, Zoho CRM, Voucherify, OneSignal
5d
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Research Intern
Lone Tree, Colorado, United States
$20/hr OnsiteFull Time
0+ YOEUndergraduate or graduate in engineering or science; basic programming (Python/MATLAB); data analysis; documentation; problem solving; communication.
Python, MATLAB, Data Analysis
1mo
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Bioinformatics Machine Learning Intern
Aurora or United States
$34-$38/hr HybridInternship, Temporary
PhD candidate in bioinformatics or related field; experience with single-cell omics, ML/deep learning on biological data, Python and/or R; knowledge of scRNA-seq, Seurat, Scanpy; data analysis and reproducible workflows.
Python, R, Scanpy, Seurat, Bioconductor, PyTorch, TensorFlow, JAX, MLflow, Weights and Biases, Scikit-learn, XGBoost, Docker, Singularity, Nextflow, Snakemake, Linux
2w
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Scientist IV
Boulder, Colorado, United States
$99k-$129k/yr HybridFull Time
10+ YOESenior-level scientist with strong research design, data analysis, and collaboration skills; ability to lead projects and mentor junior staff; experience with longitudinal designs and risk communication research.
R, Python, SPSS
2mo
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Cloud Software Engineering Bachelor's Intern
Greenwood Village, Colorado, United States
$21-$27/hr HybridAll Commitments Available
0+ YOEPursuing a bachelor's degree in Computer Science, Math/Statistics, or AI Analytics; interested in cloud software and internship experience; open to flexible work location.
Python, Java, Azure, Azure Functions, Storage, App Services, Git, GitHub, Jira, REST API, Docker, Kubernetes, OpenAI, BOT framework, CI/CD, Reporting, Power BI
2mo
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Interplanetary Trajectory and Maneuver Design
Littleton, Colorado, United States
$100k-$160k/yr OnsiteFull Time
0+ YOEAerospace/astrodynamics/physics background; experience in trajectory design tools; US citizenship.
Copernicus, STK, GMAT, EMTG, MIRAGE, MONTE, NAIF SPICE, Python, Linux, Microsoft Office
4w
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Post-Doctoral Fellow
Denver, Colorado, United States
$73k/yr HybridFull Time
2+ YOEPhD in Computational Biology / Bioinformatics / Biomedical Informatics / Computer Science / Statistics / Biostatistics / Applied Mathematics or similar; 2+ years programming; experience with large-scale biological data; strong publication record preferred.
Python, R, Julia, Machine Learning frameworks, Bioconductor
3w
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Technology Integration Intern
Louisville, Colorado, United States
$20-$22/hr OnsiteInternship
Experience in a lab setting; knowledge of materials characterization; proficiency with data analysis tools; available to work up to 29 hours/week in summer.
ATR-FTIR, Rheometer, Potentiostat, Universal testing machine, SEM/EDS, DSC/TGA, EIS, CV, Python, MATLAB
6d
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Technical Intern 3
Littleton, Colorado, United States
$45k-$74k/yr OnsitePart Time
Undergraduate or graduate student in biology or related field; US citizen; off-site work at University of Colorado Boulder; available Tuesdays and Thursdays May 15–July 30; able to work independently or in a team; willing to participate in research with animal models.
LabVIEW, MATLAB, Python, Data acquisition systems
2w
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Atkinson Postdoctoral Science Fellow, Methane
Boulder or Washington D.C. or Boston or Raleigh or New York or San Francisco or Austin
$72k/yr RemoteFull Time
PhD in a related field; strong remote sensing, GIS, and machine learning; programming for data analysis; ability to work independently and across disciplines; Mandarin is a plus.
ArcGIS, QGIS, Python, R, Earth Observation, Sentinel, Landsat, Machine Learning
1w
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PhD Intern - Trapped-Ion Quantum Computing Theory - 809
Broomfield, Colorado, United States
$24-$35/hr OnsiteInternship
2+ YOEPhD student enrolled, graduating after Dec 2026; US person; background checks; experience in quantum-related research preferred.
Python, Matlab, Simulation, Quantum circuit design
HiringCafe market data
Junior Python Developer Jobs market signals in Boulder, CO, 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
100+
Hiring companies
60
Fresh sample
54% new in 30d
Salary visibility
96% show pay
Companies appearing in this market
Colorado School of MinesExabeamAccurisApplied Research AssociatesBillGOBlue OriginCochlearCognizant
Work location mix in visible results
Onsite: 19Hybrid: 7Remote: 2