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Fastapi Developer Jobs in Thornton, CO (NOW HIRING)

Senior Software Engineer

Louisville, CO

$128K - $168.80K/yr

We are seeking a Senior Software Engineer to lead the development and productization of our ... Own the backend REST API written in Python (FastAPI), ensuring robust integration with hardware ...

Senior Software Engineer

Louisville, CO · On-site

$128K - $168.80K/yr

We are seeking a Senior Software Engineer to lead the development and productization of our ... Own the backend REST API written in Python (FastAPI), ensuring robust integration with hardware ...

Senior Software Engineer

Louisville, CO · On-site

$128K - $168.80K/yr

We are seeking a Senior Software Engineer to lead the development and productization of our ... Own the backend REST API written in Python (FastAPI), ensuring robust integration with hardware ...

AI Developer/Engineer

Denver, CO · On-site +1

$111.24K - $145.23K/yr

Description Connect for Health has a great opportunity for an AI Developer/Engineer. Connect for ... Experience building lightweight web apps or APIs using Streamlit, FastAPI/Flask, or similar ...

Collaborate with backend engineers to integrate UI components with Python services (FastAPI/Flask) running on AWS. • Cloud-Native Development: Deploy and maintain frontend assets within an AWS ...

Software Engineer

Boulder, CO · On-site

$100K - $130K/yr

... DevOps practices (CI/CD pipelines, infrastructure-as-code, monitoring, etc.) - Document and ... as FastAPI, Node.js, or Django - Strong understanding of RESTful APIs and asynchronous data ...

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Fastapi Developer information

See Thornton, CO salary details

$17

$54

$83

How much do fastapi developer jobs pay per hour?

As of May 30, 2026, the average hourly pay for fastapi developer in Thornton, CO is $54.03, according to ZipRecruiter salary data. Most workers in this role earn between $41.30 and $66.11 per hour, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a FastAPI Developer, and why are they important?

To thrive as a FastAPI Developer, you need strong proficiency in Python programming, RESTful API design, and experience with FastAPI, often supported by a background in computer science or related fields. Familiarity with tools like SQL/NoSQL databases, Docker, and cloud platforms, as well as knowledge of asynchronous programming and API documentation tools like Swagger, is typically required. Excellent problem-solving skills, attention to detail, and effective communication set outstanding FastAPI developers apart. These skills are crucial for building reliable, high-performance APIs that meet modern application demands and facilitate seamless team collaboration.

What are some common challenges FastAPI Developers face when integrating third-party services or APIs?

FastAPI Developers often encounter challenges when integrating third-party services, such as handling authentication protocols (like OAuth2), ensuring compatibility between JSON schemas, and managing asynchronous calls to avoid performance bottlenecks. It’s also common to troubleshoot and adapt to inconsistencies in external API documentation or rate limits. Collaborating closely with frontend teams and DevOps professionals helps streamline these integrations, ensuring robust, scalable API solutions.

What is a FastAPI Developer?

A FastAPI Developer is a software engineer who specializes in building web applications and APIs using the FastAPI framework, which is a modern, fast (high-performance) web framework for Python. FastAPI Developers are responsible for designing, developing, and maintaining backend services and APIs that are efficient, robust, and scalable. They often work with databases, authentication, and deployment processes, and ensure that the API endpoints adhere to best practices for security and performance. Their work is crucial for enabling smooth communication between front-end applications and backend systems.

What is the difference between Fastapi Developer vs Backend Developer?

AspectFastapi DeveloperBackend Developer
Required SkillsPython, Fastapi, REST APIs, async programmingMultiple languages (Python, Java, Node.js), REST/SOAP APIs, databases
Work EnvironmentWeb development, API-focused projects, microservicesBroader software development, server-side logic, database management
Industry UsageTech startups, SaaS, API-driven servicesEnterprise, e-commerce, finance, various industries

Fastapi Developers specialize in building high-performance APIs using Python and Fastapi, often within microservices architectures. Backend Developers have a broader scope, working with multiple languages and technologies to develop server-side applications across various industries. While Fastapi Developers focus on API efficiency, Backend Developers handle comprehensive backend systems.

What are popular job titles related to Fastapi Developer jobs in Thornton, CO? For Fastapi Developer jobs in Thornton, CO, the most frequently searched job titles are:
What job categories do people searching Fastapi Developer jobs in Thornton, CO look for? The top searched job categories for Fastapi Developer jobs in Thornton, CO are:
What cities near Thornton, CO are hiring for Fastapi Developer jobs? Cities near Thornton, CO with the most Fastapi Developer job openings:
Senior Consultant - GenAI Full Stack Developer

Senior Consultant - GenAI Full Stack Developer

Deloitte

Denver, CO • On-site

Other

Posted 9 days ago


Deloitte rating

8.1

Company rating: 8.1 out of 10

Based on 86 frontline employees who took The Breakroom Quiz

59th of 138 rated financial services


Job description

GenAI Solutions Developer - Senior Consultant

Deloitte's Audit & Assurance professionals help organizations navigate business risks and opportunities-across financial, operational, information technology (IT), business, and regulatory areas-to build resilience and accelerate performance. In this role, you'll design and deliver end-to-end Generative AI (GenAI) solutions - including Retrieval-Augmented Generation (RAG) multi-agent orchestration, real-time AI task pipelines, and knowledge graph-powered reasoning-that are scalable, secure, and aligned to enterprise governance expectations.

Recruiting for this role ends on May 31st 2026.

Work you'll do

       Lead business and technical requirements elicitation with client stakeholders; own end-to-end gap analysis; translate needs into solution architecture, detailed technical specifications, and delivery-ready backlog artifacts.

  • Design, build, test, and deploy GenAI application platforms-comprising Python/FastAPI AI microservices, Node.js backend APIs, and React frontends-using asynchronous task orchestration (Redis pub/sub, Server-Sent Events) to deliver real-time AI workflows at enterprise scale; ensure non-functional requirements (security, performance, reliability, observability) are met.
  • Own end-to-end retrieval-augmented generation (RAG) implementations (ingestion, chunking, embedding, indexing, retrieval, orchestration); define prompt engineering standards and evaluation harnesses to measure quality and reduce hallucinations.
  • Architect agentic AI workflows using LangChain and LangGraph (tool-using agents, multi-step orchestration, parallel multi-agent patterns); integrate LLM pipelines with knowledge graphs (Neo4j) for structured reasoning over audit and compliance data; implement human-in-the-loop checkpoints, auditability controls, and enterprise governance guardrails.
  • Evaluate and integrate frontier LLMs (Gemini 2.5 Pro/Flash, Claude, GPT-4o) and specialized models; define LLM selection criteria, cost/latency tradeoffs, and quality benchmarks; run prompt iteration cycles and structured output evaluation to meet acceptance criteria across audit-specific use cases.
  • Own API and integration service design using FastAPI and Express; deliver scalable RESTful interfaces and streaming endpoints (Server-Sent Events); coordinate integration with downstream/upstream enterprise systems, Microsoft Azure AD identity and access management (IAM), and AI task monitoring pipelines.
  • Design and deliver data engineering pipelines to curate governed datasets for GenAI solutions-including document parsing, structured extraction, and embedding preparation; partner with data governance and risk teams on lineage, access controls, and data quality standards for AI model inputs.
  • Operationalize GenAI application deployments using containerized patterns (Docker, Kubernetes, Helm); implement monitoring and observability for AI workloads (performance, cost, model drift, output quality signals) and drive continuous improvement through incident learnings and release management.
  • Advise on emerging GenAI models, frameworks, and toolkits (e.g., Gemini 2.5, Claude, LangGraph, Milvus, Neo4j); prototype and recommend options with explicit tradeoffs across audit value, delivery effort, risk, compliance, and total cost of ownership (TCO); guide responsible AI adoption within regulated environments.

       Collaborate with cross-functional teams (product, engineering, data, risk, and stakeholders) to deliver adoption-ready solutions and documentation.

The team
Our team culture is collaborative and encourages team members to take initiative and seek on-the-job learning opportunities. Audit & Assurance services are focused on engagements related to independent External Audit services, Accounting, Controls & Reporting Advisory, and Specialized Assurance & Sustainability. We bring together the diverse skills and industry experience of our people, leading-edge technology, and a global network to deliver high-quality audits of financial statements and internal controls over financial reporting, along with assurance reports and valuable advice and insights across the corporate reporting landscape. Learn more about Deloitte Audit & Assurance.  

Qualifications
Required:

       Bachelor's degree (or equivalent) in Computer Science, Engineering, Data Science, or a related field (advanced degree a plus).

       4+ years of experience in software engineering, full stack development, and/or AI/ML solution delivery.

       Python programming (production-grade) and strong SQL.

       Natural Language Processing (NLP) applied to GenAI solutions.

       Agentic AI design/implementation, including LangChain, LangGraph, and LlamaIndex.

       Hands-on experience with RAG architectures and implementation.

       Strong prompt engineering (design, iteration, and evaluation).

       Experience with vector databases (e.g., Milvus, Pinecone, Chroma, FAISS or similar) and embedding-based retrieval.

       Experience with GenAI model build: training, fine-tuning, and validation; practical LLM evaluation using common metrics.

       Experience with model deployment (serving, monitoring, iteration) and production hardening.

       Experience with containers (e.g., Docker) and scalable runtime patterns.

       Experience building ETL pipelines and data engineering solutions (data quality, preprocessing, and curation).

       API development and integration (RESTful services); backend development using FastAPI (or equivalent).

       Experience integrating multiple LLM provider APIs (OpenAI, Anthropic, Google GenAI/Gemini) using their respective Python SDKs; ability to swap and benchmark models across providers.

       Experience with asynchronous messaging and real-time data patterns (Redis pub/sub, Server-Sent Events, WebSockets) for AI task orchestration and streaming output delivery.

       Experience with cloud AI/ML services with a focus on GCP (Vertex AI, GKE, Cloud Storage, Filestore); familiarity with Azure and AWS AI/ML services a plus.

       You should reside within a commutable distance of your assigned office with the ability to commute daily, if required

       You can expect to co-locate on average 3 times a week with variations based on types of work/projects and client locations

       Ability to travel up to 50%, on average, based on the work you do and the clients/sectors you serve

       Limited immigration sponsorship may be available.

Preferred:

       Experience with deep learning frameworks (e.g., TensorFlow, PyTorch, Keras).

       Familiarity with AI/GenAI ethics, governance, and responsible AI implementation practices.

       Cloud certification (AWS, Azure, or GCP) and/or AI/ML certification.

The wage range for this role takes into account the wide range of factors that are considered in making compensation decisions including but not limited to skill sets; experience and training; licensure and certifications; and other business and organizational needs.  The disclosed range estimate has not been adjusted for the applicable geographic differential associated with the location at which the position may be filled.  At Deloitte, it is not typical for an individual to be hired at or near the top of the range for their role and compensation decisions are dependent on the facts and circumstances of each case.  A reasonable estimate of the current range is $124,658 to $179,431.

You may also be eligible to participate in a discretionary annual incentive program, subject to the rules governing the program, whereby an award, if any, depends on various factors, including, without limitation, individual and organizational performance.

Qualifications:

GenAI Solutions Developer - Senior Consultant

Deloitte's Audit & Assurance professionals help organizations navigate business risks and opportunities-across financial, operational, information technology (IT), business, and regulatory areas-to build resilience and accelerate performance. In this role, you'll design and deliver end-to-end Generative AI (GenAI) solutions - including Retrieval-Augmented Generation (RAG) multi-agent orchestration, real-time AI task pipelines, and knowledge graph-powered reasoning-that are scalable, secure, and aligned to enterprise governance expectations.

Recruiting for this role ends on May 31st 2026.

Work you'll do

       Lead business and technical requirements elicitation with client stakeholders; own end-to-end gap analysis; translate needs into solution architecture, detailed technical specifications, and delivery-ready backlog artifacts.

  • Design, build, test, and deploy GenAI application platforms-comprising Python/FastAPI AI microservices, Node.js backend APIs, and React frontends-using asynchronous task orchestration (Redis pub/sub, Server-Sent Events) to deliver real-time AI workflows at enterprise scale; ensure non-functional requirements (security, performance, reliability, observability) are met.
  • Own end-to-end retrieval-augmented generation (RAG) implementations (ingestion, chunking, embedding, indexing, retrieval, orchestration); define prompt engineering standards and evaluation harnesses to measure quality and reduce hallucinations.
  • Architect agentic AI workflows using LangChain and LangGraph (tool-using agents, multi-step orchestration, parallel multi-agent patterns); integrate LLM pipelines with knowledge graphs (Neo4j) for structured reasoning over audit and compliance data; implement human-in-the-loop checkpoints, auditability controls, and enterprise governance guardrails.
  • Evaluate and integrate frontier LLMs (Gemini 2.5 Pro/Flash, Claude, GPT-4o) and specialized models; define LLM selection criteria, cost/latency tradeoffs, and quality benchmarks; run prompt iteration cycles and structured output evaluation to meet acceptance criteria across audit-specific use cases.
  • Own API and integration service design using FastAPI and Express; deliver scalable RESTful interfaces and streaming endpoints (Server-Sent Events); coordinate integration with downstream/upstream enterprise systems, Microsoft Azure AD identity and access management (IAM), and AI task monitoring pipelines.
  • Design and deliver data engineering pipelines to curate governed datasets for GenAI solutions-including document parsing, structured extraction, and embedding preparation; partner with data governance and risk teams on lineage, access controls, and data quality standards for AI model inputs.
  • Operationalize GenAI application deployments using containerized patterns (Docker, Kubernetes, Helm); implement monitoring and observability for AI workloads (performance, cost, model drift, output quality signals) and drive continuous improvement through incident learnings and release management.
  • Advise on emerging GenAI models, frameworks, and toolkits (e.g., Gemini 2.5, Claude, LangGraph, Milvus, Neo4j); prototype and recommend options with explicit tradeoffs across audit value, delivery effort, risk, compliance, and total cost of ownership (TCO); guide responsible AI adoption within regulated environments.

       Collaborate with cross-functional teams (product, engineering, data, risk, and stakeholders) to deliver adoption-ready solutions and documentation.

The team
Our team culture is collaborative and encourages team members to take initiative and seek on-the-job learning opportunities. Audit & Assurance services are focused on engagements related to independent External Audit services, Accounting, Controls & Reporting Advisory, and Specialized Assurance & Sustainability. We bring together the diverse skills and industry experience of our people, leading-edge technology, and a global network to deliver high-quality audits of financial statements and internal controls over financial reporting, along with assurance reports and valuable advice and insights across the corporate reporting landscape. Learn more about Deloitte Audit & Assurance.  

Qualifications
Required:

       Bachelor's degree (or equivalent) in Computer Science, Engineering, Data Science, or a related field (advanced degree a plus).

       4+ years of experience in software engineering, full stack development, and/or AI/ML solution delivery.

       Python programming (production-grade) and strong SQL.

       Natural Language Processing (NLP) applied to GenAI solutions.

       Agentic AI design/implementation, including LangChain, LangGraph, and LlamaIndex.

       Hands-on experience with RAG architectures and implementation.

       Strong prompt engineering (design, iteration, and evaluation).

       Experience with vector databases (e.g., Milvus, Pinecone, Chroma, FAISS or similar) and embedding-based retrieval.

       Experience with GenAI model build: training, fine-tuning, and validation; practical LLM evaluation using common metrics.

       Experience with model deployment (serving, monitoring, iteration) and production hardening.

       Experience with containers (e.g., Docker) and scalable runtime patterns.

       Experience building ETL pipelines and data engineering solutions (data quality, preprocessing, and curation).

       API development and integration (RESTful services); backend development using FastAPI (or equivalent).

       Experience integrating multiple LLM provider APIs (OpenAI, Anthropic, Google GenAI/Gemini) using their respective Python SDKs; ability to swap and benchmark models across providers.

       Experience with asynchronous messaging and real-time data patterns (Redis pub/sub, Server-Sent Events, WebSockets) for AI task orchestration and streaming output delivery.

       Experience with cloud AI/ML services with a focus on GCP (Vertex AI, GKE, Cloud Storage, Filestore); familiarity with Azure and AWS AI/ML services a plus.

       You should reside within a commutable distance of your assigned office with the ability to commute daily, if required

       You can expect to co-locate on average 3 times a week with variations based on types of work/projects and clien...


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