17 senior fastapi developer jobs at 14 companies in Colorado

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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
3w
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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
1mo
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Senior Backend Engineer
Colorado Springs, Colorado, United States
$160k-$185k/yr HybridFull Time
Sphinx Defense
Sphinx Defense: Develops software for secure satellite and space mission operations.
5+ YOE5+ years software engineering experience; strong Python, FastAPI, Postgres, AWS, Docker, Kubernetes, Terraform; cloud architecture, API/backend development, security focus, mentorship and customer integration skills.
Python, FastAPI, Postgres, AWS, Docker, Kubernetes, Terraform
1w
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Software Engineer - MID
Colorado Springs, Colorado, United States
$109k-$147k/yr OnsiteFull Time
GDIT
GDITNYSE: GD: Delivers IT and mission services to government agencies.
5+ YOE5+ years software development experience; proficiency with Python, JavaScript/TypeScript, Flask/FastAPI, React, Postgres, SQLAlchemy; TS/SCI clearance required; Bachelor’s in CS or related.
Python, JavaScript, TypeScript, Streamlit, React, Flask, FastAPI, Postgres, SQLAlchemy, Elasticsearch, AWS, Docker, Kubernetes, Git
2mo
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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
2mo
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Senior Data Engineer
Denver, Colorado, United States
$160k-$200k/yr HybridFull Time
Kharon
Kharon: Global risk analytics platform for sanctions compliance and risk management.
3+ YOE3+ years in data/software engineering; BS/MS CS or related; Python, Pandas, PySpark; SQL; data pipelines; ETL/data warehousing; Docker/Kubernetes; strong communication.
Python, Pandas, PySpark, SQL, AWS Glue, Airflow, Kafka, Databricks, Snowflake, Docker, Kubernetes, FastAPI, Flask, Spring Boot, Elasticsearch
1w
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Software Engineer - MID
Colorado Springs, Colorado, United States
$109k-$147k/yr OnsiteFull Time
General Dynamics Information TechnologyNYSE: GD: Provides mission-critical IT services to government and defense organizations.
5+ YOETS/SCI clearance, US citizenship, 5+ years software development, Bachelor’s in CS or related, proficient in Python and JavaScript/TypeScript, Flask/FastAPI, Postgres, SQLAlchemy, Git; experience with AWS, Docker, Kubernetes, CI/CD.
Python, JavaScript, TypeScript, Streamlit, React, Flask, FastAPI, Postgres, SQLAlchemy, Elasticsearch, AWS, Docker, Kubernetes, Git, CI/CD
2w
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Senior Software Engineer
San Mateo or Arizona or California or Colorado or Florida or Georgia or Illinois or Nevada or North Carolina or Oregon or Texas or Utah or Washington
$160k-$180k/yr RemoteFull Time
VyncaCare
VyncaCare: Offers palliative care services and advance care planning technology.
5+ YOE5-7 years software engineering, Bachelor's in Computer Science or related (preferred), proficiency in Python and Java, experience with event-driven architectures, cloud (AWS), Kubernetes, real-time data pipelines, and healthcare data standards.
Apache Kafka, Airflow, Flink, DataDog, Kibana, Kafka Streams, Spark Streaming, Flask, FastAPI, Spring Boot, AWS, Kubernetes, Kinesis, Python, Java, Redshift, BigQuery, Snowflake, DynamoDB, FHIR, CCDA, HL7 V2/V3, DICOM
1d
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Senior Software Engineer (Full Stack)
Alabama or Arkansas or Arizona or California or Colorado or Connecticut or Delaware or Florida or Georgia or Illinois or Indiana or Kentucky or Louisiana or Maryland or Maine or Michigan or Minnesota or Missouri or North Carolina or New Hampshire or New Jersey or New York or Ohio or Oregon or Pennsylvania or South Carolina or Tennessee or Texas or Utah or Virginia or Vermont or Washington
RemoteFull Time
ServiceTrade
ServiceTrade: Software platform for commercial mechanical and fire contractors.
5+ YOE5+ years building production full‑stack applications; strong JavaScript/TypeScript and React experience, backend skills (PHP/Node/Python), cloud and DevOps knowledge, API and database expertise, strong communication and systems design.
JavaScript, TypeScript, React.js, Vue.js, Angular, HTML5, CSS3, SASS, PHP, Node.js, Python, Django, FastAPI, PostgreSQL, MySQL, MongoDB, DynamoDB, Redis, AWS, GCP, Azure, Docker, Kubernetes, GitHub Actions, Jenkins, GitLab, Claude Code, Cursor, Copilot
1d
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Senior Software Engineer, Core Infrastructure Services - DGX Cloud
United States or Texas or Colorado or California or Massachusetts or Santa Clara
$168k-$322k/yr RemoteFull Time
NVIDIA
NVIDIANASDAQ: NVDA: Designs GPU-accelerated computing and artificial intelligence hardware.
8+ YOEBS or equivalent with 8+ years experience; strong Python and Go; cloud-native microservices on Kubernetes; infrastructure automation and observability experience.
Python, Go, FastAPI, gRPC, REST, Kubernetes, Terraform, Ansible, Temporal, Redis, Kafka, NATS, SQS, DNS, NTP, RADIUS, OAuth, Prometheus, Grafana, OpenTelemetry, gNMI, BGP, NetBox, Nautobot, InfiniBand, RDMA
1d
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Senior Software Engineer, Core Infrastructure Services - DGX Cloud
United States or Texas or Colorado or California or Massachusetts
$168k-$322k/yr RemoteFull Time
NVIDIA
NVIDIANASDAQ: NVDA: Designs graphics processing units and artificial intelligence hardware.
8+ YOEBS or equivalent with 8+ years experience; strong Python and Go; cloud-native microservices on Kubernetes; infrastructure automation (Terraform, Ansible), workflow orchestration (Temporal), distributed systems and Linux fundamentals.
Python, Go, Kubernetes, FastAPI, gRPC, REST, Terraform, Ansible, Temporal, Redis, Kafka, NATS, SQS, DNS, NTP, RADIUS, OAuth, Prometheus, Grafana, OpenTelemetry, gNMI, BGP, InfiniBand, RDMA, NetBox, Nautobot, Linux
1mo
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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
2mo
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Sr Software Engineer, Ground Software
Centennial or Louisville
$157k-$215k/yr OnsiteFull Time
Sierra Space
Sierra Space: Develops spacecraft and infrastructure for orbital and space transportation
8+ YOEBachelor's degree or equivalent, 8+ years experience, multiple programming languages, design/architect complex software, Agile/Scrum, leadership, security clearance eligibility.
Python, React, Git, GitHub, GitLab, Bitbucket, FastAPI, Kubernetes, Helm, ArgoCD, JIRA, Confluence, Bash, PowerShell, Ansible, Docker, AWS, MySQL, PostgreSQL, MongoDB
2w
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Principal Engineer I - Principal Data Platform Engineer
Greenwood Village, Colorado, United States
OnsiteFull Time
Charter Communications
Charter CommunicationsNASDAQ: CHTR: Provides broadband connectivity, cable, and mobile communication services.
5+ YOE5+ years engineering and project management experience; strong Hadoop administration and platform architecture skills; Python/Typescript and cloud/DevOps experience; bachelor's or master's in engineering or equivalent experience; CCIE preferred.
Hadoop, HDFS, YARN, Hive, HBase, Spark, Kafka, Oozie, ZooKeeper, Impala, Postgresql, MySQL, Splunk, Docker, Kubernetes, Python, Typescript, Django, Flask, FastAPI, Shell, Visio
6d
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Principal Engineer I - Principal Data Platform Engineer
Greenwood Village, Colorado, United States
$111k-$196k/yr OnsiteFull Time
Charter Communications
Charter CommunicationsNASDAQ: CHTR: A leading broadband connectivity and telecommunications services provider.
5+ YOEMaster's or bachelor's (or equivalent experience),5+ years engineering and 5+ years project management experience; deep Hadoop administration and platform architecture; Python/Typescript and cloud/hybrid migration experience.
Hadoop, HDFS, YARN, Hive, HBase, Spark, Kafka, Oozie, ZooKeeper, Impala, Postgresql, MySQL, Splunk, Docker, Kubernetes, Python, Typescript, Django, Flask, FastAPI, Shell, PEP8, Visio
1mo
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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
2mo
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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