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Fastapi Developer Jobs in Ashburn, VA (NOW HIRING)

Bridge Core (BCore)

Full-Stack Developer

Mclean, VA · On-site

Strong experience with JavaScript (Hono.js) and Python (fastapi) * Strong experience with TypeScript/JavaScript (Vue.js) and Tailwindcss * Experience with DevOps (CDKTF/terraform) * Experience with ...

Bridge Core (BCore)

Full-Stack Developer

Mclean, VA

Strong experience with JavaScript (Hono.js) and Python (fastapi) * Strong experience with TypeScript/JavaScript (Vue.js) and Tailwindcss * Experience with DevOps (CDKTF/terraform) * Experience with ...

Bridge Core (BCore)

Full-Stack Developer

Mclean, VA · On-site

Strong experience with JavaScript (Hono.js) and Python (fastapi) * Strong experience with TypeScript/JavaScript (Vue.js) and Tailwindcss * Experience with DevOps (CDKTF/terraform) * Experience with ...

GRVTY

Full Stack Developer

Mclean, VA

Strong experience with JavaScript (Hono.js) and Python (fastapi) * Strong experience with TypeScript/JavaScript (Vue.js) and Tailwindcss * Experience with DevOps (CDKTF/terraform) * Experience with ...

WorkNova LLC

Python Developer

Reston, VA · On-site

$52.25 - $72/hr

... or FastAPI • Knowledge of authentication and authorization mechanisms (JWT, OAuth2) • ... DevOps, & Tooling • Hands-on experience with GitLab for version control and CI/CD pipeline ...

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How much do fastapi developer jobs pay per hour?

As of Jun 23, 2026, the average hourly pay for fastapi developer in Ashburn, VA 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 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.
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Fastapi Developer jobs near you
Software Engineer Level 4

Software Engineer Level 4

Base-2 Solutions, LLC

Washington, DC • On-site

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted yesterday

Job description

  • Requisition ID: 2646
  • Standard Title: Software Engineer
  • Required Security Clearance: Top Secret/SCI with CI Polygraph
  • Location: Washington, DC
  • Work Type: On-Site
  • Shift: First
  • Referral Eligibility: Eligible
  • U.S. Citizenship Required? Yes

Position Summary
Base-2 Solutions is seeking a Software Engineer Level 4 to develop, maintain, and enhance complex and diverse software systems supporting mission-focused environments. This role is centered on backend development, data engineering, and API development, with emphasis on building scalable systems using Python and FastAPI, designing and managing PostgreSQL databases, and supporting high-performance integrations across high-speed, high-volume, mission-critical, data-sensitive systems.
Essential Duties and Responsibilities
  • Develop, maintain, and enhance complex and diverse software systems, including processing-intensive analytics, novel algorithm development, manipulation of extremely large data sets, real-time systems, and business management information systems, based upon documented requirements.
  • Provide specific input to software component design, including hardware/software trade-offs, software reuse, use of COTS/GOTS in place of new development, and requirements analysis and synthesis from the system level to individual software components.
  • Design, implement, and integrate software applications or perform software engineering tasks.
  • Utilize software engineering and design methodologies appropriate to the development, integration, and production environment.
  • Ensure efficient delivery of software engineering capabilities using industry standards and repeatable processes.
  • Mitigate risks, control costs and schedule variance, and effectively manage large-scale, integrated software projects.
  • Review and test software components for adherence to design requirements and document test results.
Required Qualifications
  • Active TS/SCI with CI Polygraph.
  • Demonstrated experience as a backend developer.
  • Demonstrated experience in data engineering and API development.
  • Experience building scalable systems with Python and FastAPI.
  • Experience designing and managing PostgreSQL databases with efficient SQL and indexing strategies.
  • Proficiency in Python.
  • Proficiency in FastAPI.
  • Proficiency in PostgreSQL.
  • Proficiency in Elasticsearch.
  • Experience building high-performance API connections between high-speed, high-volume, mission-critical, data-sensitive systems.
Preferred Qualifications
  • Experience supporting processing-intensive analytics environments.
  • Experience working with extremely large data sets.
  • Experience supporting real-time systems.
  • Experience contributing to software design decisions involving software reuse, COTS/GOTS, and system-to-component requirements analysis.
Required Education and Experience Equivalency
EducationYears of ExperienceHigh School Diploma/GED13Associates Degree11Bachelors' Degree9Masters' Degree7PhD5Required Certifications
  • None specified.
Required Security Clearance
  • Active TS/SCI with CI Polygraph.

Pay & Benefit Highlights
Compensation
  • Competitive fixed salary or hourly pay (based on experience, skills, location, and internal equity).
  • Employee referral bonuses up to $10,000 per hired referral.
  • Additional bonus opportunities for exceptional performance and contributions to business development and company growth (role-dependent).
Health
  • 100% company-paid medical premiums for employees and eligible dependents.
  • Choose from multiple plan options with CareFirst, Kaiser, and UnitedHealthcare, including PPO, POS, HMO, and HSA-compatible plans.
  • 100% company-paid dental premiums for employees and eligible dependents.
  • 100% company-paid vision premiums for employees and eligible dependents.
Income Protection
  • 100% company-paid premiums for short-term disability.
  • 100% company-paid premiums for long-term disability.
  • 100% company-paid premiums for accidental death & dismemberment (AD&D).
  • 100% company-paid premiums for life insurance up to $200,000.
Retirement
  • 401(k) with immediate vesting: 4% company match plus a 4% non-elective company contribution (8% total).
  • 401(k) pre-tax and Roth options.
Leave
  • Up to 20 days of flexible paid time off (PTO).
  • 11 paid floating holidays.
Work-Life Balance
  • Flexible work schedules, including flex time and compressed work periods (contract and project-dependent).

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