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Senior Fastapi Developer Jobs in Washington (NOW HIRING)

SR. FRONTEND DEVELOPER

Mclean, VA · On-site

$116K - $153K/yr

Job Title: SR. FRONTEND DEVELOPER Location: Mclean,VA Duration: 12+ Months Visa: USC, GC, H1B and ... Integrate front-end applications with backend services (built with Python/FastAPI) and data sources ...

Senior DevOps Engineer

Arlington, VA

$149K - $192K/yr

Two Six Technologies is looking for a Senior DevOps Engineer to work within a cross-functional ... Hands-on experience with Python frameworks such as Django or FastAPI. Automation and Configuration ...

Senior Data Engineer

Herndon, VA · Hybrid

$150K - $175K/yr

They will utilize leading languages and frameworks, including Python (FastAPI), AWS, SQL (Trino SQL ... DevOps practices and modern programming languages and frameworks to develop and engineer data ...

Senior Data Engineer

Herndon, VA · Hybrid

$150K - $175K/yr

They will utilize leading languages and frameworks, including Python (FastAPI), AWS, SQL (Trino SQL ... DevOps practices and modern programming languages and frameworks to develop and engineer data ...

Expression is seeking an experienced Senior AI Platform Engineer to join our Product Team and ... Develop high-performance Python APIs and scalable backend services using FastAPI, asynchronous ...

New

Senior DevOps Engineer

Arlington, VA · On-site

$149K - $192K/yr

Two Six Technologies is looking for a Senior DevOps Engineer to work within a cross-functional ... Hands-on experience with Python frameworks such as Django or FastAPI. • Automation and ...

Expression is seeking an experienced Senior AI Platform Engineer to join our Product Team and ... Develop high-performance Python APIs and scalable backend services using FastAPI, asynchronous ...

New

Dark Wolf is looking for a Senior Data Engineer to join our team in Herndon, VA supporting the ... Experience with modern programming languages and frameworks including Python (FastAPI, Django ...

Senior Software Engineer

Arlington, VA · On-site

$141K - $186K/yr

They are seeking a Senior Software Engineer to develop high-performance API-driven services and ... Preferred : • Experience with Spring Boot, Flask, FastAPI, Django, or similar frameworks. • ...

Senior Full-Stack Engineer Zetier is seeking a senior full-stack engineer to build modern, secure ... Flask, FastAPI) * Familiar with responsive design frameworks (Bootstrap, Material) * Practical ...

Senior Full-Stack Engineer Zetier is seeking a senior full-stack engineer to build modern, secure ... Flask, FastAPI) * Familiar with responsive design frameworks (Bootstrap, Material) * Practical ...

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Senior Fastapi Developer information

What does a Senior FastAPI Developer do?

A Senior FastAPI Developer designs, develops, and maintains backend web applications using the FastAPI framework in Python. They are responsible for building scalable APIs, optimizing performance, ensuring security best practices, and integrating with databases and external services. Senior developers also mentor junior team members, contribute to architecture decisions, and collaborate closely with front-end engineers and stakeholders to deliver robust software solutions.

What are some common challenges faced by Senior FastAPI Developers when scaling applications, and how can these be addressed?

Senior FastAPI Developers often encounter challenges related to managing high concurrency, optimizing API performance, and ensuring robust security as applications scale. To address these, it’s important to implement asynchronous programming practices, leverage efficient database queries, and utilize API gateways for better traffic management. Collaboration with DevOps and QA teams is also essential to automate deployments and monitor system health, ensuring smooth scaling and reliable user experiences.

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

To thrive as a Senior FastAPI Developer, you need deep expertise in Python, RESTful API design, and experience building scalable web backends, typically supported by a degree in computer science or related field. Familiarity with FastAPI, Docker, cloud platforms (such as AWS or Azure), and CI/CD tools is highly valued, along with proficiency in testing frameworks. Strong problem-solving, leadership, and communication skills help you collaborate effectively with cross-functional teams and mentor junior developers. These skills enable the delivery of robust, efficient, and maintainable APIs that support business goals and high user demands.
What are the most commonly searched types of Fastapi Developer jobs in Washington? The most popular types of Fastapi Developer jobs in Washington are:
What are popular job titles related to Senior Fastapi Developer jobs in Washington? For Senior Fastapi Developer jobs in Washington, the most frequently searched job titles are:
What job categories do people searching Senior Fastapi Developer jobs in Washington look for? The top searched job categories for Senior Fastapi Developer jobs in Washington are:
What cities in Washington are hiring for Senior Fastapi Developer jobs? Cities in Washington with the most Senior Fastapi Developer job openings:
SR. FRONTEND DEVELOPER

SR. FRONTEND DEVELOPER

BTree Solutions, Inc.

Mclean, VA • On-site

$116K - $153K/yr

Contractor

Posted 20 days ago


Job description

Job Title: SR. FRONTEND DEVELOPER
Location: Mclean,VA
Duration: 12+ Months
Visa: USC, GC, H1B and EAD
Contract Type: W2
Must Have Qualifications: Candidate must have 7-10 years of experience with React OR
Angular. Experience translating development to UI, API understanding, and AI/ML exposure.
JOB DESCRIPTION
Client seeking a Senior Software Engineer with a frontend focus to join our Engineering team. In this role, you will build modern, scalable user interfaces-primarily in React (preferred) and Angular-delivering exceptional user experiences in production. You will be responsible for designing and developing UI applications that support and showcase GenAI-driven capabilities, ensuring that the user experience is aligned with the unique requirements and opportunities presented by GenAI solutions.
Key Responsibilities
  • Develop Front-end Features: Design, develop, and implement user interfaces and
  • client-side logic using TypeScript with React or Angular.
  • API Integration: Integrate front-end applications with backend services (built with Python/FastAPI) and data sources (Snowflake), ensuring seamless data flow and functionality.
  • Translate Requirements to UI: Convert product requirements, wireframes, and user stories into functional, responsive, and accessible web components. Implement UIs based on these inputs.
  • Testing & Quality Assurance: Write comprehensive unit and integration tests for front-end code, ensuring code quality, performance, and reliability.
  • Collaborate & Innovate: Work closely with product managers and backend engineers, contributing to technical discussions and problem-solving to deliver polished user experiences. Tech Stack Proficiency Strong command of TypeScript.
  • Hands-on experience with modern JavaScript frameworks such as React or Angular.
  • Solid understanding of API integration (REST) and consuming backend services.
  • Experience with front-end testing frameworks, including Playwright (end-to-end testing), Cypress (end-to-end and integration testing), Jest (unit and integration testing), and Testing Library (React Testing Library, Angular Testing Library, etc. for component testing).
  • Experience using Figma for UI/UX design interpretation and implementation.

Required Skills
  • Deep expertise in React (preferred) and Angular, including modern patterns, state
  • management, and component architecture.
  • Strong proficiency in TypeScript and JavaScript.
  • Extensive experience building and maintaining complex, production-grade web applications at scale.
  • Proven ability to make sound tradeoffs between performance, maintainability, and delivery speed.
  • Experience implementing frontend technical direction, standards, and best practices. Ability to architect, debug, and ship high-quality UI solutions.
  • Strong communication skills-you can align engineers, designers, and stakeholders around a technical approach.
  • Experience using Figma for UI/UX design interpretation and implementation. Plus Skills Experience with Python for backend development or AI integration.
  • GenAI skills: familiarity with GenAI APIs, prompt engineering, or building GenAI- powered UI features.
  • Experience building and scaling design systems or shared component libraries.
  • Deep knowledge of frontend performance optimization, accessibility (WCAG), and responsive design.
  • Experience with modern build tools, CI/CD pipelines, and frontend testing frameworks (Jest, Cypress, Playwright, Testing Library).
  • Excellent product instincts-partnering with product and design to shape what gets built, not just how.
  • Ability to take a loosely defined business problem and drive it to a well-scoped technical solution.
  • Track record of raising the bar for frontend engineering quality across a team (testing practices, observability, code review standards).
  • Experience with AWS or similar cloud platforms for frontend hosting and delivery (CloudFront, S3, etc.). Security engineering experience.
  • Fintech or mortgage industry experience.
  • Experience working in large-scale enterprise environments.