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Fastapi Developer Jobs in Denver, CO (NOW HIRING)

... FastAPI endpoints for applications - Understanding AI techniques enhancing LLMs - Experience in prompt engineering for LLM outputs - Developing scalable data storage solutions using cloud services ...

Data Engineer

Denver, CO

$120K - $160K/yr

API experience using FastAPI, Flask, Spring Boot or equivalent. * Understanding of elasticsearch ... a Data Engineer to join us as we work to shape the way businesses perceive and navigate global ...

API experience using FastAPI, Flask, Spring Boot or equivalent. * Understanding of elasticsearch ... Engineer to join us as we work to shape the way businesses perceive and navigate global risks. To ...

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Fastapi Developer information

See Denver, CO salary details

$17

$55

$85

How much do fastapi developer jobs pay per hour?

As of Jun 23, 2026, the average hourly pay for fastapi developer in Denver, CO is $55.15, according to ZipRecruiter salary data. Most workers in this role earn between $42.16 and $67.50 per hour, depending on experience, location, and employer.

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 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 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 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 are the most commonly searched types of Fastapi Developer jobs in Denver, CO? The most popular types of Fastapi Developer jobs in Denver, CO are:
What are popular job titles related to Fastapi Developer jobs in Denver, CO? For Fastapi Developer jobs in Denver, CO, the most frequently searched job titles are:
What job categories do people searching Fastapi Developer jobs in Denver, CO look for? The top searched job categories for Fastapi Developer jobs in Denver, CO are:
What cities near Denver, CO are hiring for Fastapi Developer jobs? Cities near Denver, CO with the most Fastapi Developer job openings:
Software Engineer III

$129K - $178K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 22 days ago


Job description

Sierra Space Careers:

At Sierra Space, we build the missions and systems that keep our world secure in the domain above Earth.

Sierra Space team members share a spirit of innovation and collaboration and a belief that we can deliver on the boldest missions in space today. Together with our customers, we aim to safeguard our nation, sustain human presence in space, and secure the freedom of operations in low Earth orbit and beyond.

Our success is measured by the trust of those who rely on what we build and deliver, and our technologies keep the United States and its allies mission-ready throughout space.

We are mission-driven, and together, we are an extraordinary team.

About the RoleThe Software Engineer III role involves designing, developing, and testing software applications for space systems and technologies. This advanced position requires expertise in at least one programming language, an advanced understanding of software development principles, and the ability to design and architect complex software systems. The role includes writing clean, maintainable code, collaborating with team members to understand project requirements, and contributing to the development of innovative software solutions. Additionally, this position involves mentoring and guiding other engineers, providing technical leadership and support.
In this role, you will design, develop, and test software applications for space systems and technologies while writing clean, maintainable code that adheres to best practices and coding standards. You will architect and implement complex software systems to meet project requirements and collaborate with team members to understand project needs, contributing to the development of effective software solutions. Utilizing version control systems such as Git, you will manage code changes and work collaboratively with team members. You will participate in code reviews to ensure code quality and adherence to development standards, troubleshoot and resolve software-related issues in a timely manner, and document software configurations, processes, and procedures for future reference. Staying current with industry trends and advancements in software development and space technologies will be essential, and you will mentor and guide other engineers, providing technical leadership and support to foster growth and collaboration within the team.About You

Our mission is driven by an unyielding commitment to advancing space-based technology in service of our customers and safeguarding national security. We seek individuals who are passionate about innovating beyond boundaries and relentlessly pursuing solutions that protect, preserve and empower - to join us in this critical mission.

We're looking for team members who align with our values, mission and goals - while also meeting the minimum qualifications below. The preferred qualifications are a bonus, not a requirement.

Minimum Qualifications:
  • Requires bachelor's degree in a related field (or equivalent work experience in lieu of degree or master's +3 yrs experience).

  • Typically, 5+ years of related experience.

  • Expertise in one to multiple programming languages and advanced understanding of software development principles.

  • Ability to design and architect complex software systems.

  • Experience with different software development methodologies such as Agile and Scrum/Kanban.

  • Strong problem-solving skills.

  • Ability to mentor and guide other engineers.

  • The ability to obtain and maintain a U.S. Security Clearance is required

Preferred Qualifications:
  • Proficiency in Python and React

  • Experience with Python FastAPI

  • Experience with Kubernetes, Helm, and ArgoCD for application deployments

  • Experience with code coverage testing and writing unit tests

  • Experience with Agile or Scrum/Kanban methodologies and tools (JIRA, Confluence).

  • Familiarity with scripting languages (Bash, PowerShell) and automation tools (Ansible)

  • Strong analytical skills, performance profiling, and debugging complex systems.

  • Excellent communication and teamwork skills, and efficient with collaborative tools (GitHub, GitLab, Bitbucket) and development ceremonies (daily standup, backlog grooming, work planning, task estimation, retrospectives, etc.).

  • Experience with cloud platforms (AWS) and cloud-native development.

  • Familiarity with containerization (Docker) and orchestration (Kubernetes).

  • Understanding of network protocols, security principles, and secure coding practices.

  • Ability to write and maintain technical documentation.

  • Strong problem-solving skills and experience with CI/CD pipelines and automated testing.

  • Experience with continuous integration and automated test.

  • Knowledge of and experience implementing Software Design Patterns.

  • Knowledge of database management systems (MySQL, PostgreSQL, MongoDB).

  • An active Top Secret U.S. Security Clearance is preferred

Compensation:

Pay Range:

$129,776.00 - $178,441.25

Your actual base compensation will be determined on a case-by-case basis and may vary based on job-related knowledge and skills, education,experience, internal equity and market competitiveness.

IMPORTANT NOTICE:

This position requires the ability to obtain and maintain a U.S. Security Clearance. U.S. Citizenship status is required as this position needs an active U.S. Security Clearance for employment. Non-U.S. Citizens may not be eligible to obtain a security clearance. The Department of Defense Consolidated Adjudications Facility (DoD CAF), a federal government agency, handles the adjudicative aspects of the security clearance eligibility process for industry applicants. Adjudicative factors which affect the outcome of the eligibility determination include, but are not limited to, allegiance to the U.S., foreign influence, foreign preference, criminal conduct, security violations and illegal drug use.

Elevate Your Career

At Sierra Space, we are committed to your personal and professional development. We empower you to make profound and meaningful contributions and foster a vibrant culture of collaboration, where teamwork ignites breakthrough innovations.


We also offer a generous benefit package, including medical, dental, and vision plans, 401(k) with 150% match up to 6%, life insurance, 3 weeks paid time off, and more.

Sierra Space is an industry-leading space and defense technology company providing satellites, spacecraft, and enabling mission systems and components. We deliver mission-proven technologies to our customers that safeguard our nation, protect space-based assets and enable space exploration.

Application Deadline: This role will remain posted until a qualified pool of candidates is identified.

Please note: Sierra Space does not accept unsolicited resumes from contract agencies or search firms. Any unsolicited resumes submitted to our website or to Sierra Space team members not through our approved vendor list or Talent Acquisition will be considered property of Sierra Space, and we will not be obligated to pay any referral fees.

Sierra Space Corporationis an equal opportunity employer and is committed to working with and providing reasonable accommodations to applicants with disabilities. If you need special assistance or a reasonable accommodation related to applying for employment withSierra Spaceor at any stage of the recruitment process, pleasecontact us.