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Junior Python Developer Jobs in Colorado, United States

290+ junior python developer jobs from 190+ companies hiring in Colorado, United States.

All jobs in Colorado, United StatesJunior Python Developer Jobs in United States
Cities:Denver·Colorado Springs·Aurora·Fort Collins·Lakewood·Thornton·Westminster·Arvada·Centennial·Pueblo·Boulder·Greeley·Highlands Ranch·Longmont·Loveland·Broomfield·Grand Junction·Castle Rock·Commerce City·Parker
290 jobs- Colorado
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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16h
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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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2w
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Junior Software Engineer
Warrenton or State College or Fort Eisenhower or Centennial
OnsiteFull Time
Altamira Technologies
Altamira TechnologiesNYSE: PSN: Provides data analytics and engineering for national security missions.
Bachelor’s in CS/CE/EE or related field; strong Java and JavaScript/Typescript experience; experience with Python, Angular, ELK, Redis, REST, Docker/Kubernetes; TS/JS stack experience preferred; Must have Top Secret clearance.
Java, JavaScript, TypeScript, Python, Angular, React, ElasticSearch, ELK stack, Redis, REST, Docker, Kubernetes, Helm, NoSQL, SQL, Xmidas
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2mo
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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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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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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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2w
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Junior Software Engineer (AI ML)
Denver, Colorado, United States
$64k-$128k/yr HybridFull Time
CACI
CACINYSE: CACI: Provides information technology and professional services to government clients.
Bachelor's in Computer Science; frontend and backend development; AWS experience; JavaScript with Angular/React; Python/Java/Node.js/C/C++; Docker/Kubernetes; databases; US citizenship with TS/SCI clearance willingness.
AWS, CDK, SAM, EKS, JavaScript, Angular, React, Python, Java, Node.js, C++, Go, Rust, Docker, Kubernetes, PostgreSQL, MySQL, MongoDB, Redis, Kafka
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1w
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Junior Security Operations Engineer
Dublin or Amsterdam or San Francisco or Denver
RemoteFull Time, Contract
Telnyx
Telnyx: Provides global carrier-grade voice and messaging services via APIs.
2+ YOEJunior SecOps role focusing on vulnerability management, AI-assisted tooling, and incident response; includes bug bounty triage, SIEM/EDR/DLP usage, and scripting for automation.
SIEM, EDR, DLP, Python, Bash, LLM tooling, Bug bounty platforms
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4d
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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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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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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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1mo
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Junior Machine Learning Engineer | AI/ML Gunslinger
Colorado Springs, Colorado, United States
$80k-$90k/yr OnsiteFull Time
Infinity Labs
Infinity Labs: Develops modeling and simulation solutions for defense and security.
0+ YOEProficiency in ML frameworks (PyTorch, TensorFlow, JAX); RL algorithms; Python; AWS/DoD HPC; Git; U.S. citizenship with eligibility for security clearance.
PyTorch, TensorFlow, JAX, Python, RLlib, Gymnasium, AWS, Git
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6d
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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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1w
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Systems Engineer - Junior
Colorado Springs, Colorado, United States
$145k/yr OnsiteFull Time
Amentum
AmentumNYSE: AMTM: Provides engineering, technology, and mission support to government agencies.
4+ YOEActive Top-Secret clearance with SCI or ability to obtain SCI; 4 years IT/systems engineering experience; Windows Server, VMware ESXi, Nutanix, Active Directory; 8140 IAT Level II/III baselines; scripting (PowerShell/Python); travel may be required; 40-hour work week.
VMware ESXi, Nutanix, vCenter, vSAN, Windows Server 2019, Active Directory, PowerShell, Python, SCCM
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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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3d
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Software Engineer
Aurora, Colorado, United States
$69k-$158k/yr OnsiteFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Provides technology and management consulting services to diverse organizations.
2+ YOE2+ years in software development; experience with Java, Python, Rust, or Go; microservices; TS/SCI clearance; bachelor's degree.
Java, Python, Rust, Go, Linux, Docker, Kubernetes, AWS, Azure, Google
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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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3w
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Software Engineer
Westminster, Colorado, United States
$78k-$108k/yr OnsiteFull Time
Trimble
TrimbleNASDAQ: TRMB: Provides hardware and software for precision positioning and modeling.
0+ YOE0-1 year software development experience; Python; serverless, REST APIs; CI/CD, git; NoSQL; agile methods; debugging/scripts a plus.
Python, AWS, Azure, REST APIs, Git, CI/CD, NoSQL, Serverless
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1w
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Software Engineer Early Career
Littleton, Colorado, United States
OnsiteFull Time
Lockheed Martin
Lockheed MartinNYSE: LMT: Designs and builds aerospace and defense technology systems.
0+ YOEBachelor's in CS or related; software development in Python/C++; Agile; eligible for US security clearance; early career
Python, C++, Git, Jira, DevOps
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1w
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Software Engineer
United States
$85k-$178k/yr RemoteFull Time
Indeed
Indeed: Online employment platform for job seekers and employers.
Develop, test, and maintain AI gateway/guardrails features; cloud infra familiarity; Node.js, Python, or TypeScript; degree in CS/CE/EE/Math; interest in LLM/AI systems.
AWS, GCP, Azure, Node.js, Python, TypeScript
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3w
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Software Engineer
Westminster, Colorado, United States
$74k-$137k/yr HybridFull Time
Publicis Groupe
Publicis GroupeEuronext Paris: PUB: Global communications, advertising, and digital transformation holding.
1+ YOEBachelor’s degree in CS/CE or related field; 1+ years in software development with Java or Python; SQL; Unix; cloud and big data tools; Docker/Kubernetes and AWS/Databricks plus AI tools a plus.
Java, Python, SQL, Unix, Hadoop, HBase, Spark, Spring, Hibernate, Maven, Angular, HTML, JavaScript, Docker, Kubernetes, AWS, Databricks, AI tools
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1w
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Software Engineer 1, Dev Accelerator
Canada or United States
RemoteFull Time
Abnormal AI
Abnormal AI: Protects enterprises from email attacks using behavioral artificial intelligence.
1+ YOE1+ years of professional development or 2+ years of strong open source contributions; strong fundamentals; Python or Go; CI/CD; able to work with AI tools.
Python, Go, CI/CD, Git, gRPC, Protobuf
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1w
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Associate Software Engineer
United States
$65k-$87k/yr RemoteFull Time
Wiland
Wiland: Provides predictive audience intelligence and data-driven marketing analytics solutions.
1+ YOEBachelor's in CS or related field or equivalent experience; 1+ years in software development; 1+ years in consultative/training roles; experience with NodeJS, JavaScript, PHP, MySQL/MariaDB, Linux, Python; familiarity with Agile; Direct/Digital Marketing experience a plus
NodeJS, JavaScript, PHP, RDBMS/MySQL/MariaDB, Linux, Python
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3w
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SuccessFactors Recruiting: Developer (The Major Extremity Trauma Research Consortium) (120810)
United States
$24-$43/hr RemotePart Time
Johns Hopkins University
Johns Hopkins University: Private research university providing higher education and global research.
Part-time, entry-level Developer with foundational skills in R and/or Python; no prior professional experience required; Bachelor’s degree; 25 hours/week; remote.
R, Python, Git, Basecamp
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3w
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Software Engineer I - Backend
United States
RemoteFull Time
CDW
CDWNasdaq: CDW: Sells and manages IT products and services for organizations.
0+ YOEDesign and develop web apps using Python; REST/GraphQL APIs; PostgreSQL/Redis/ElasticSearch; unit/integration tests; CI/CD with GitLab, Kubernetes/EKS; AWS; strong collaboration.
Python, REST, GraphQL, PostgreSQL, Redis, ElasticSearch, GitLab, Kubernetes, AWS
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1mo
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Machine Learning/AI Engineer (LATAM Remote)
United States or Mexico
RemoteFull Time
UP.Labs
UP.Labs: Builds and scales mobility-focused startups with corporate partners.
Proficient in computer vision, ML systems, backend development, Python, Generative AI, PostgreSQL, and Databricks; strong cloud familiarity.
Python, PostgreSQL, Databricks, GCP, AWS, Azure, OpenAI, LLMs
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1mo
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Entry/Mid-Level Full stack developer
North America
$50k-$70k/yr RemoteFull Time
AEPOP
AEPOP: Distributes contractor supplies and provides business and technology solutions.
0+ YOEEntry to mid-level full stack developer with BS in CS or related field; strong JS/Python; front-end and back-end skills; Git; remote, full-time.
JavaScript, Python, Java, C#, React, Angular, Vue.js, Node.js, Express, Django, Flask, HTML5, CSS3, Git, Docker, Kubernetes, CI/CD
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2w
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Software Engineer Intern - Product & Backend
United States
RemoteInternship
Good At Numbers
Good At Numbers: Automated decision intelligence platform for business operations.
3+ YOE3+ years software development experience preferred; backend APIs, databases; Python/JavaScript/TypeScript; testing, code review, maintainable design; strong communication.
Python, JavaScript, TypeScript, React, Next.js, FastAPI, Django, Node.js, PostgreSQL, APIs, Testing
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2w
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Web Software Developer
United States
RemoteFull Time
ECS
ECSNYSE: ASGN: Provides advanced technology and engineering services to government agencies.
Active Secret Clearance; AWS native infrastructure; EKS; Kubernetes; Docker; Node.js; Python; Django; React; scalable web applications.
AWS, EKS, Docker, Kubernetes, Node.js, Python, Django, React
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6d
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AI Research Engineer (hybrid, junior career)
Fort Worth or Grand Prairie or Littleton or Sunnyvale
HybridFull Time
Lockheed Martin
Lockheed MartinNYSE: LMT: Designs and manufactures global security and aerospace systems.
Bachelor’s degree in Engineering, Computer Science, or related field; experience with machine learning, computer vision, and deep learning libraries; proficient in Python; US citizen required for security clearance.
Python, PyTorch, TensorFlow, Keras, OpenCV, Scikit-learn, CUDA, OneAPI, Triton Inference Server, NVIDIA TensorRT
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3w
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Software Engineer I, Backend (Purchasing Power Experience)
United States or Canada
$115k-$170k/yr RemoteFull Time
Affirm
AffirmNasdaq: AFRM: Financial platform providing installment loans for consumer purchases.
0+ YOEExperience designing, developing and launching backend systems at scale; proficient in Python or Kotlin; familiar with AWS, MySQL, Kubernetes; strong code quality and collaboration; Bachelor’s degree or equivalent practical experience.
Python, Kotlin, AWS, MySQL, Kubernetes
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2mo
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Product Engineer
United States
$140k-$220k/yr RemoteFull Time
Coverbase
Coverbase: Automates third-party risk management and procurement using artificial intelligence.
Strong software engineering skills; startup environment; productivity across stack (React, Python, AI, AWS).
React, TypeScript, Python, PostgreSQL, AWS, Pulumi, AI systems
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3w
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Software Developer I
United States
RemoteFull Time
AVN Corporation
AVN Corporation: Develops chemical processes and software solutions for global customers.
0+ YOE0-3 years full-stack development, strong problem solving, team collaboration, learning mindset.
React, Angular, Vue.js, Node.js, Python, Django, Flask, Java, PHP, Docker, Kubernetes, Terraform, Helm, Git, GitHub, GitLab, Bitbucket, CI/CD, GCP
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1mo
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Test Engineer
Colorado Springs, Colorado, United States
$71k-$123k/yr OnsiteFull Time
ASRC Federal
ASRC Federal: Provides engineering and IT services to federal government agencies.
0+ YOE2+ years in STEM testing or a Master’s in STEM with 0-2 years; active DoD Secret clearance; Agile, Linux, programming in Python/Java/JavaScript; test planning and performance analysis.
Python, Java, JavaScript, Linux, Git, Docker, REST APIs, SQL, Jenkins, GitHub, Bitbucket, SonarQube, CAMEO, C#, ASP.NET, Curl, CI/CD
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3d
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Software Engineer
Boston or United States
$108k-$192k/yr RemoteFull Time
AcuityMD
AcuityMD: Commercial intelligence platform for the medical technology industry.
1+ YOEBachelor's degree in CS/Software Eng or related field plus 1 year of experience; skills include JavaScript, TypeScript, React, Node.js, Python, Mongo, data analytics, UX analytics, and leading projects.
JavaScript, TypeScript, React, Node.js, Python, MongoDB, Data Analytics Tools, UX Analytics
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1w
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Software Engineer (Remote)
United States or United States
$50k-$130k/yr RemoteFull Time
The Home Depot
The Home DepotNYSE: HD: Retailer of home improvement products, building materials, and tools.
1+ YOESoftware Engineer with remote work, strong SQL, Python, BI tools, ETL, and ITIL familiarity; 1 year experience; US work authorized.
SQL, Python, Tableau, SSRS, JIRA, Git, ETL, Google BigQuery, Google Dataform
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2w
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(Entry level) Full Stack Software Engineer (LLM application Development)
United States
$70k-$121k/yr RemoteFull Time
Allstate
AllstateNYSE: ALL: Provides insurance products for vehicles, homes, and businesses.
0+ YOE0–3 years in software development with full stack experience; proficient in React/JavaScript/Python; knowledge of TDD and Agile; interest in AI/LLM; strong collaboration.
React, JavaScript, Python, TDD, CI/CD, Jenkins, GitHub, Docker, MSSQL, Vectorization, RAG databases, Azure OpenAI
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1mo
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AI Engineer (Intern)
United States or Canada
$50/hr RemoteInternship
Juniper Square
Juniper Square: Investment management and fund administration software for private markets.
Pursuing a Master’s in CS/AI; remote AI internship in US/Canada; strong Python, ML/NLP, and LLM focus; cloud basics; fast learner.
Python, TensorFlow, PyTorch, scikit-learn, NumPy, Pandas, SQL, NoSQL, Looker, Tableau, Power BI, AWS, GCP, SageMaker, REST, GraphQL
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2mo
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Full-Stack Software Engineer (New graduates: United States)
United States
$70k-$100k/yr RemoteFull Time
Wanderlog
Wanderlog: Travel planning application for organizing itineraries and booking trips.
0+ YOEJavaScript developer with React/React Native experience; product-minded; able to pick up Redis/Elasticsearch/Python; entrepreneurial; love travel.
JavaScript, TypeScript, React, React Native, Node.js, Express, Redis, Elasticsearch, Python
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1w
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2026 Summer Intern, Appian Developer
United States
$35k-$59k/yr RemoteFull Time, Internship
ICF
ICFNASDAQ: ICFI: Provides strategic consulting and technology services to global organizations.
0+ YOEEntry-level Appian Developer internship; US work authorization; 30 college credits in CS/IS; remote from US; strong interest in software development.
Appian, Java, Python, JavaScript
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HiringCafe market data

Junior Python Developer Jobs market signals in Colorado, 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
290+
Hiring companies
190+
Fresh sample
68% new in 30d
Salary visibility
63% show pay

Companies appearing in this market

Lockheed MartinAllstateASRC FederalCACIAffirmBooz Allen HamiltonGood At NumbersICF

Work location mix in visible results

Remote: 39Onsite: 12Hybrid: 5

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