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23 fastapi developer jobs at 17 companies in Colorado

1mo
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Senior Software Engineer
New York City or Arizona or California or Colorado or Connecticut or Florida or Georgia or Maine or Maryland or Massachusetts or Michigan or Minnesota or New Jersey or New York or North Carolina or Oregon or Rhode Island or South Carolina or Tennessee or Texas or Virginia or Utah or Wisconsin
$165k-$185k/yr RemoteFull Time
Electric
Electric: Provides automated IT management and security services for businesses.
8+ YOE8+ years backend experience with modern Python stack, leadership experience, proficiency in Postgres/SQLAlchemy, AWS, Terraform, FastAPI, React/TypeScript, observability, and familiarity with AI-assisted development.
Python, FastAPI, Pydantic, PostgreSQL, SQLAlchemy, Alembic, Temporal, Redis, AWS RDS, AWS S3, AWS SQS, AWS DynamoDB, AWS ECS, AWS IAM, Terraform, React, TypeScript, Claude Code
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1w
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Senior Backend Software Engineer
Arkansas or California or Colorado or District of Columbia or Florida or Illinois or Massachusetts or Maryland or Maine or Michigan or New Jersey or Ohio or Pennsylvania or South Carolina or Texas or Utah or Virginia or Washington
$165k-$195k/yr RemoteFull Time
SITE Technologies
SITE Technologies: Provides AI-powered property condition assessments and management software.
5+ YOE5+ years backend development experience with Python and FastAPI, strong backend architecture, relational modeling, AWS services, Docker, CI/CD, and cross-team communication.
Python, FastAPI, PostgreSQL, SQLAlchemy, Alembic, Flyway, AWS, ECS, Lambda, RDS, S3, IAM, Docker, Git, CI/CD, GitHub Actions, AWS CodePipeline, Claude Code, Cursor, Terraform, Terragrunt, Datadog, Sentry, LangGraph, Claude Code SDK, Amazon Bedrock
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2w
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Backend Engineer - Mission Operations Services
San Francisco or Golden or Toulouse
$140k-$190k/yr OnsiteFull Time
Loft Orbital
Loft Orbital: Deploy and operate satellite missions for organizations and governments.
Production Python development, Docker/container experience, backend web frameworks (Django/Flask/FastAPI), API design (HTTP/GraphQL/REST), and working with databases (Postgres, time-series DBs). Experience operating mission-critical systems preferred.
Python, Docker, Django, Flask, FastAPI, GraphQL, HTTP, REST, Postgres, InfluxDB, TimescaleDB, Kubernetes, Cockpit
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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
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2mo
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Software Engineer II
Centennial or Louisville
$106k-$145k/yr OnsiteFull Time
Sierra Space
Sierra Space: Develops spacecraft and infrastructure for orbital and space transportation
2+ YOEBachelor's degree or equivalent; 2+ years experience; strong programming and software development knowledge; Agile/Scrum/Kanban; ability to obtain/maintain US security clearance.
Python, React, FastAPI, Kubernetes, Docker, Git, AWS, Ansible, Jira, Confluence
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2w
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Forward Deployed Engineer
Chicago or Denver or Houston or Minneapolis or New York City
$116k-$223k/yr OnsiteFull Time
Spaulding Ridge
Spaulding Ridge: Global advisory and cloud technology implementation firm.
7+ YOE7+ years consulting or related experience; strong Snowflake architecture, SQL, data modeling, ELT/ETL, dbt, full-stack development (Python, JavaScript/TypeScript), API/integration experience, client advisory and team leadership.
Snowflake, Snowpark, dbt, Fivetran, Boomi, MuleSoft, Workato, Matillion, Apache Airflow, Sigma, Microsoft Power BI, Tableau, Looker, Omni, JavaScript, TypeScript, React, Next.js, Node.js, Python, FastAPI, Flask, .NET, Java, SQL, Git, CI/CD, Streamlit, Cortex, Apache Iceberg, Microsoft Fabric, REST, JSON, OAuth, ELT, ETL, iPaaS
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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
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1mo
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Senior Data Engineer
Denver, Colorado, United States
$140k-$170k/yr HybridFull Time
Snooze an A.M. Eatery
Snooze an A.M. Eatery: Casual dining restaurant chain specialized in breakfast and brunch.
5+ YOE5+ years data engineering experience with Snowflake, Airflow, dbt, SQL and Python; experience deploying ML in AWS, building APIs (FastAPI/Flask), prompt engineering/AI integration; authorized to work in the U.S.; 3 days/week in Denver office.
Snowflake, AWS S3, dbt, Apache Airflow, FastAPI, Flask, SQL, Python
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1mo
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Staff Software Engineer, AI Agentic Experience (Auth0)
Bellevue or San Francisco or California or Colorado or Illinois or New York or Washington
$174k-$238k/yr HybridFull Time
Okta
OktaNASDAQ: OKTA: Provide secure identity management and authentication for enterprises.
Proven software engineering experience building developer tools/platforms; proficiency in JavaScript/TypeScript, Golang, or Python; experience with LLM APIs, agent runtimes, and auth standards (OAuth2, OIDC, JWT); architecture leadership and strong documentation skills.
JavaScript, TypeScript, Golang, Python, React, Next.js, FastAPI, LLM APIs, Token Vault, Async Authorization, Fine-Grained Authorization (FGA), MCP servers
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1mo
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API Integrations Developer
Denver, Colorado, United States
$119k-$133k/yr HybridFull Time
Colorado Access
Colorado Access: Provides managed care and health insurance for Medicaid members.
4+ YOEBachelor's in CS or related required; 4+ years backend experience (Python, Node.js, Java, or .NET); HL7 FHIR and X12 EDI experience; strong REST API, security (OAuth2, JWT, mTLS), SQL, and HIPAA knowledge; experience with cloud and CI/CD.
Python, Flask, FastAPI, Django, Node.js, Java, .NET, OpenAPI/Swagger, Postman, X12 EDI, HL7 FHIR, HL7 v2, CDA, EHRs, Docker, Kubernetes, GitHub Actions, Azure DevOps, Jenkins, ELK, Datadog, Prometheus, Grafana, AWS, Azure, GCP, SQL Server, Snowflake, Data Vault 2.0, pytest, JUnit, Pact, k6, Locust, OAuth2, JWT, mTLS, RBAC/ABAC, Microsoft Word, Microsoft Excel, Microsoft PowerPoint, Microsoft Outlook, Microsoft SharePoint
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1mo
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Full Stack Product Engineer, AI Enabled Products
San Francisco or New York City or Colorado or United States
$130k-$175k/yr RemoteFull Time
Solv Health
Solv Health: Connects patients with same-day doctor appointments and urgent care.
2+ YOE2+ years building and maintaining production web applications; comfortable across frontend and backend; experience with React, Python, and SQL/Postgres; experience using AI-assisted development tools; strong testing, debugging, and collaboration skills.
React, Remix, Python, FastAPI, Postgres, SQL
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1mo
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GenAI Python Systems Engineer –Senior Manager
Chicago or Raleigh or Charlotte or Cincinnati or Cleveland or Columbia or Columbus or Dallas or Baltimore or Richmond or Rosemont or Sacramento or Boston or St. Louis or Salt Lake City or San Antonio or San Diego or San Francisco or Silicon Valley or Seattle or Spartanburg or Albany or Stamford or Tampa or Atlanta or Toledo or Austin or Tulsa or Washington or Denver or Des Moines or Detroit or Buffalo or Florham Park or Kansas City or Las Vegas or Little Rock or Los Angeles or Louisville or Birmingham or Fayetteville or Miami or Milwaukee or Minneapolis or Nashville or New Orleans or New York or Oklahoma City or Philadelphia or Phoenix or Pittsburgh or Portland
$124k-$280k/yr HybridFull Time
PwC
PwC: Providing audit, tax, and management consulting services to businesses.
8+ YOESenior Manager level with 8+ years of experience; proficient in Python, SQL, FastAPI; cloud certifications a plus; willing to travel up to 80%; Bachelor's degree required.
Python, SQL, FastAPI, Cloud Platforms, LLM techniques, Data Warehousing, Data Lakes, IAM
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1mo
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Agentic AI Engineer
Golden or Houston
HybridFull Time
Fervo Energy
Fervo Energy: Generates clean electricity using advanced geothermal drilling technology.
2+ YOEBachelor’s or Master’s in Computer Engineering or Data Science; 2+ years building agentic AI/LLM apps; strong Python; experience with agent frameworks; cloud experience (Azure/AWS); CI/CD; Docker; observability.
Python, FastAPI, LangChain, LangGraph, LlamaIndex, AutoGen, Semantic Kernel, Anthropic Claude, OpenAI, Azure OpenAI, vector databases, pgvector, Pinecone, Weaviate, Chroma, Databricks, Snowflake, dbt Semantic Layer, Docker, Terraform, Git, CI/CD, Streamlit, Gradio, React, Entra ID, Key Vault, App Service, Azure, Azure Data Lake Storage (ADLS), Azure Data Factory
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1w
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Senior Site Reliability Engineer (REMOTE)
Oregon or Washington or California or Colorado or Texas or Illinois
$140k/yr RemoteFull Time
Discogs
Discogs: Online marketplace and database for music recordings.
5+ YOE5+ years in SRE/Platform/DevOps roles; Terraform, Kubernetes, AWS, observability, scripting (Shell/Python); incident response, automation, mentoring, Kafka CDC and agentic AI experience.
Terraform, GitHub Actions, Kubernetes (EKS, Kustomize, Karpenter), AWS, VPC, EKS, RDS, S3, Datadog, Sentry, Claude Code, Shell, Python, Kafka, Strimzi, Debezium, JDBC, Flink, MySQL, Percona Server, Elasticsearch, SQLAlchemy, FastAPI, GraphQL, Apollo, REST API, ArgoCD, Hashicorp Vault, Redis, Memcached
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1mo
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Data Engineer
Denver, Colorado, United States
$120k-$160k/yr HybridFull Time
Kharon
Kharon: A leading provider of global risk analytics and sanctions compliance solutions.
3+ YOE3+ years of experience; BS/MS in Computer Science; Python, Pandas, PySpark; SQL; AWS Glue, Airflow, Kafka; Databricks/Snowflake; Docker, Kubernetes; strong communication.
Python, Pandas, PySpark, Notebooks, SQL, AWS Glue, Airflow, Kafka, Databricks, Snowflake, Docker, Kubernetes, FastAPI, Flask, Spring Boot, Elasticsearch
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3mo
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Sr AI/ML Engineer
Irving or Chicago or Centennial
$102k-$179k/yr HybridFull Time
Vizient: Provides performance improvement and supply chain services to hospitals
5+ YOE5+ years in ML engineering; production ML deployment; LLM/RAG; Python; CI/CD; cloud; vector DBs; LangChain/LlamaIndex; build scalable AI solutions.
Python, FastAPI, MLflow, LangChain, LlamaIndex, vector databases, embedding workflows, CI/CD, containerization, cloud
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2w
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Agentic AI Architect - Intelligence Engineering (West)
Denver or East Bay or Los Angeles or Orange County or Phoenix or Portland or Salt Lake City or San Diego or San Francisco or Seattle or Silicon Valley
$108k-$237k/yr HybridFull Time
Slalom
Slalom: Provides business and technology consulting and software engineering services.
5+ YOE5+ years software engineering experience with 2+ years on generative/agentic AI, multi-agent system design, RAG architectures, cloud AI platform deployment, Python proficiency, and strong communication skills.
Python, FastAPI, Flask, Lang Graph, Strands Agents SDK, OpenAI Agents SDK, Google ADK, LangSmith, Model Context Protocol (MCP), AWS Bedrock, Azure AI Foundry, OpenAI Service, GCP Vertex AI, Gemini, Databricks, Claude Code, Cursor, Kiro, RAGAS, DeepEval
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1mo
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Staff Software Engineering Manager
Aurora or King of Prussia
$99k-$207k/yr HybridFull Time
CACI International
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
8+ YOE3+ MgmtTS/SCI required; bachelor’s in CS/Engineering; 8+ years software development, 3+ years leadership; proficiency with backend languages (Python, Java, C#, Go), cloud (AWS/Azure/GCP), relational and NoSQL databases, Git and CI/CD.
Python, Java, C#, Go, Node.js, Express, NestJS, Django, Flask, FastAPI, Spring Boot, Quarkus, .NET Core, Ruby/Rails, PostgreSQL, MySQL, MongoDB, Redis, SQL, ORMs, Git, CI/CD, AWS, Azure, GCP
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