69 python backend developer jobs at 41 companies in Castle Pines, CO

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
1mo
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Backend Engineer
Arvada or San Francisco or Washington or Seattle or Los Angeles
$120k-$180k/yr HybridFull Time
Quindar
Quindar: Cloud-native software for automated satellite mission operations.
3+ YOE3+ years backend development experience, proficiency with Python, AWS, GraphQL, Docker, Terraform, Kubernetes, Git; Bachelor’s in CS or related; U.S. Person required and ability to obtain U.S. security clearance.
Python, GraphQL, Docker, Terraform, OpenAI, Anthropic, AskSage, Kubernetes, EC2, S3, RDS, Fargate, EKS, Lambda, ECS, CloudWatch, EFS, EBS, Git, GitHub, GitLab, Fargate
2mo
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Senior Backend Engineer (Python) - Content Understanding
San Francisco or Atlanta or Austin or Boston or Chicago or Dallas or Denver or Houston or Jacksonville or Los Angeles or Miami or New York City or Phoenix or Portland or Sacramento or Salt Lake City or San Diego or Seattle or Washington, D.C. or Ottawa or Toronto or Vancouver or Mexico City
$120k-$228k/yr HybridFull Time
Scribd
Scribd: Subscription-based digital library for e-books, audiobooks, and documents.
7+ YOE7+ years software engineering; Python 5+ years; distributed systems; AWS; Terraform; leadership; bachelor’s in CS.
Python, Scala, Airflow, Spark, Databricks, Terraform, AWS, SQS, SNS, CloudWatch, Datadog
2w
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Backend Engineer - Oort
San Francisco or Golden or Toulouse
$140k-$190k/yr OnsiteFull Time
Loft Orbital
Loft Orbital: Deploy and operate satellite missions for organizations and governments.
Proficiency in Python and Docker, backend/API design and database interaction, experience with space mission technologies, strong communication and product mindset.
Python, Docker, Django, GraphQL, GCP, AWS, Kubernetes, PyTest, Jest, React Testing Library, Playwright, Cypress
1w
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Backend Engineer
Colorado Springs, Colorado, United States
$138k-$167k/yr HybridFull Time
Sphinx Defense
Sphinx Defense: Develops software for secure satellite and space mission operations.
3+ YOE3+ years software engineering experience; strong Python, FastAPI, Postgres, AWS, Docker, Kubernetes, Terraform; experience building APIs, multi-tenant cloud services, automation and security; eligible for U.S. security clearance.
Python, FastAPI, postgres, AWS, Docker, Kubernetes, Terraform
3w
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Senior Backend Software Engineer
Denver, Colorado, United States
$150k-$190k/yr HybridFull Time
Volley Automation
Volley Automation: Automated robotic parking systems for space-constrained locations.
BS in CS or related required (MS preferred). Strong backend development experience with Python/JavaScript, web services, cloud platforms (AWS/GCP/Azure), databases, Git and CI/CD. Must be able to work on-site or in the field at least 3 days/week.
AGVs, ROS2, ROS, Linux, IoT, PLCs, AWS, GCP, Azure, Python, JavaScript, Django, Flask, Next.js, Express.js, Git, CI/CD, MQTT, ECR, S3, EC2, React, TypeScript, iOS, Android
2w
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Back End Software Developer
Colorado Springs, Colorado, United States
$101k-$175k/yr HybridFull Time
LMI
LMI: Delivers management, technology, and analytics solutions for federal agencies.
5+ YOEBachelor's in CS or related, 5+ years backend development, proficiency in Python/Java/Node.js, REST APIs, relational/NoSQL DBs, Git; TS/SCI clearance eligibility preferred.
Python, Java, Node.js, PostgreSQL, MongoDB, Django, Flask, Spring Framework, Git, Amazon Web Services, Microsoft Azure, Docker
2w
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Back End Software Developer
Colorado Springs, Colorado, United States
$101k-$175k/yr HybridFull Time
LMI
LMI: Provides management consulting and digital solutions to federal government agencies.
5+ YOEBachelor's in CS/CE or related, 5+ years backend development, proficiency in Python/Java/Node.js, RESTful API design, experience with PostgreSQL/MongoDB, familiarity with Django/Flask/Spring and Git, ability to work with data-intensive systems.
Python, Java, Node.js, PostgreSQL, MongoDB, Django, Flask, Spring Framework, Git, Amazon Web Services (AWS), Microsoft Azure, Docker
1mo
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Senior Backend Engineer, Space Operations Intelligence & Autonomy (SOIA)
Colorado Springs or Alabama or Arizona or California or Colorado or District of Columbia or Florida or Georgia or Hawaii or Illinois or Indiana or Kansas or Massachusetts or Maryland or Michigan or Minnesota or Missouri or Montana or North Carolina or New Jersey or New Mexico or Nevada or New York or Ohio or Oklahoma or Oregon or Rhode Island or Tennessee or Texas or Utah or Virginia or Washington or Wisconsin or West Virginia or United Kingdom
$150k-$200k/yr OnsiteFull Time
Slingshot Aerospace
Slingshot Aerospace: Software and data analytics for space operations management.
5+ YOE5+ years software development, bachelor’s in CS or related, active security clearance (Top Secret preferred), experience with Java/Kotlin, Python, cloud (AWS), containers, distributed systems, Kafka, databases, and API design.
Java, Kotlin, GraphQL, GraphQL subscriptions, REST, Docker, Kubernetes, React, Python, AWS, Helm, EKS, Git, GitHub Actions, Kafka, CloudEvents, PostgreSQL, MongoDB, Three.js, HLA, DIS
2w
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Backend Software Engineers - Colorado Springs
Colorado Springs, Colorado, United States
$75k-$150k/yr OnsiteFull Time
In-Depth Engineering
In-Depth Engineering: Develops combat systems and radar software for the US military.
2+ YOEU.S. citizen with valid passport and active Secret clearance; Bachelor's in CS/CE/SE or STEM; 2+ years professional experience; experience with Rust/C, Java, Docker, gRPC, and full SDLC.
Rust, C, Java, Docker, gRPC, Kubernetes, Helm, Gitlab CI/CD, Python, Selenium, Cypress, Playwright
3w
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Senior Software Engineer - Streaming Backend
Englewood, Colorado, United States
$96k-$140k/yr OnsiteFull Time
EchoStar
EchoStarNasdaq: SATS: Global provider of satellite solutions and wireless communications services.
5+ YOEBachelor's degree or equivalent and 5+ years backend software/systems engineering experience; strong backend programming (Go, Python, Rust, C++), DRM and ABR streaming knowledge, observability, cloud and AI tool proficiency.
Go, Python, Rust, C++, H.264, HEVC, AV1, MP4, TS, Widevine, FairPlay, PlayReady, HLS, MPEG-DASH, Grafana, Dynatrace, NewRelic, AWS Elemental Media Services, AWS, GCP
1mo
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Senior Software Engineer, Backend
United States or Denver
$150k-$190k/yr RemoteFull Time
Doowii
Doowii: AI-powered data analytics platform for educational institutions.
5+ YOEBS or equivalent, 5+ years backend engineering experience, strong Python and SQL skills, distributed systems and cloud (AWS/GCP/Azure) experience, data pipelines, APIs, observability, and experience with AI/LLM integrations; technical leadership and mentoring.
Python, SQL, Kafka, Pub/Sub, Apache NiFi, Airflow, Mage.AI, Beam, Spark, Flink, dbt, Iceberg, ClickHouse, AWS, GCP, Azure, RAG, LLM, OAuth, SAML, CI/CD
1mo
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Software Engineer (Backend Development)
Colorado Springs or King of Prussia
$77k-$152k/yr HybridFull Time
Lockheed Martin
Lockheed MartinNYSE: LMT: Designs and manufactures global security and aerospace systems.
1+ YOEExperience with Rust/C, Python, Java; Docker, gRPC; SDLC knowledge; 1+ years relevant experience or advanced CS degree. Active Secret clearance and U.S. citizenship required.
Rust, C, Python, Java, Docker, gRPC, Kubernetes, Helm, GitLab CI/CD, REST, Agile
3d
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Software Engineer 2 (Backend AI)
Earth City or Atlanta or Hopkins or Denver or Cincinnati or Brookfield or Irving
$98k-$116k/yr HybridFull Time
U.S. Bank
U.S. BankNYSE: USB: Provider of personal, business, and institutional financial services.
3+ YOE3+ years software engineering experience, BS or equivalent, experience with full-stack development, cloud-native and DevOps practices, AI/GenAI familiarity preferred, strong communication and problem-solving skills.
Java, Python, Spring Boot, FastAPI, Node.js, REST APIs, GraphQL, Microservices, Azure, AWS, Azure OpenAI, AWS Bedrock, LLM APIs, LangChain, LangGraph, Semantic Kernel, Docker, Kubernetes, CI/CD Pipelines, GitHub, GitHub Copilot, SQL Server, PostgreSQL, MongoDB, Vector Databases, Embedding Models, RAG
3w
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Sr. Data Python Engineer - FreeWheel
Englewood or Chicago
$136k-$204k/yr OnsiteFull Time
Comcast
ComcastNASDAQ: CMCSA: Provides global telecommunications, media content, and entertainment services.
7+ YOE7+ years building data pipelines or distributed backend systems with Python; hands-on AWS, CI/CD, Terraform, Kubernetes; Snowflake/Spark and SQL experience; bachelor’s degree preferred.
Python, Snowflake, Spark, SQL, AWS, CI/CD, Terraform, Kubernetes, Snowpark, Databricks
1mo
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Software Developer
Colorado Springs, Colorado, United States
$75k-$100k/yr OnsiteFull Time
Auria
Auria: Engineering and software solutions for space and defense missions.
3+ YOEBackend software developer with Java/C++/Python in Linux; 3-4 years experience; BS in engineering; eligible for SECRET clearance.
Java, C++, Python, Linux, Maven, Gradle, CMake, Git, JUnit, PyTest, Google Test, Docker, Kubernetes, Jenkins, GitLab CI, Nexus
2w
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Software Developer
Colorado Springs or Melbourne
$91k-$162k/yr HybridFull Time
ENSCO
ENSCO: Provides engineering, science and advanced technology solutions for mission-critical operations.
8+ YOEBachelor's degree with 8+ years' relevant experience, Top-Secret/SCI clearance, U.S. citizenship, full-stack AWS development experience, frontend (JavaScript/TypeScript, React/Angular), backend (Java, Python, Node.js), Docker, CI/CD, infrastructure-as-code, and secure coding practices.
AWS, EKS, Lambda, S3, PostgreSQL, CloudWatch, CloudFormation, Terraform, Jenkins, GitLab CI, GitHub Actions, Docker, Spring Boot, Tomcat, JavaScript, TypeScript, React, Angular, Java, Python, Node.js
3mo
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Full Stack Web Developer
Denver, Colorado, United States
$90k-$190k/yr OnsiteFull Time
CACI
CACINYSE: CACI: Provides information technology and professional services to government clients.
5+ YOE5+ years in web development; strong React.js and JavaScript/TypeScript; backend with Flask (Python) and Express.js (Node); PostgreSQL and RESTful APIs; Git; TS/SCI clearance required.
React.js, Flask, Express.js, PostgreSQL, Python, HTML5, CSS3, TypeScript, JavaScript, Git, Docker, WebSockets, Tailwind CSS, SQLAlchemy, Prisma, Drizzle, Redis, ORM
3w
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Staff+ Software Engineer - B2B Platform
Denver or San Francisco
$190k-$240k/yr OnsiteFull Time
Frontera Health
Frontera Health: AI-driven platform for automating and improving autism clinical care.
7+ YOE7+ years software engineering with backend focus; experience designing and scaling backend systems, APIs, distributed systems, and data platforms; proficiency in Python or Node.js and relational/NoSQL databases; strong system design and communication skills.
Python, Node.js, Relational database, NoSQL, APIs
2w
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Full Stack Software Engineer (TS/SCI)
Herndon or Colorado Springs or Melbourne
$82k-$132k/yr OnsiteFull Time
Maxar Intelligence
Maxar Intelligence: Providing satellite imagery and geospatial intelligence for global security.
3+ YOEU.S. citizen with active TS/SCI clearance, bachelor\u0002s in Software Engineering or STEM, 3+ years experience, familiarity with Java/C++/Python, frontend and backend development, containerized microservices, CI/CD, Agile, and collaboration tools.
Java, C++, Python, Vue.js, React, Kafka, Git, ELK, Grafana, Prometheus, Bash, Linux, Subversion, IDE, CI-CD Pipelines
1mo
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AI Agent & Automation Developer
Raleigh or Atlanta or Richmond or Tampa or Tysons Corner or Ft. Lauderdale or Denver or Augusta or Charlotte or Chicago or Coral Gables
$54k-$134k/yr HybridFull Time
Cherry Bekaert
Cherry Bekaert: Provides accounting, tax, and business advisory services to organizations.
2+ YOEBachelor's in CS/AI; 2+ years in agent-based systems; Python; LangChain/OpenAI/PyTorch; AI/ML libraries; API/backend experience; strong communication.
Python, LangChain, OpenAI API, Hugging Face, PyTorch, APIs

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