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Senior Fastapi Developer Jobs in Reston, VA (NOW HIRING)

Senior AI/ML Engineer

Great Falls, VA · Remote

$105K - $145K/yr

Senior AI/ML Platform Engineer Position Overview We are looking for an experienced Senior AI/ML ... Experience developing RESTful APIs and ML inference services using FastAPI * Solid understanding of ...

Senior Software Engineer

Herndon, VA · On-site

$130K - $180K/yr

Senior Software Engineer ID: SPA-26-B1 Team: Space & Ground Systems Location: N/A More about this ... Experience building REST API's using frameworks like FastAPI or Spring Boot. * Experience with ...

Everforth ECS is seeking a Senior Backend/API Engineer to work in the National Capital Region ... Envoy, FastAPI, Flask, container orchestration platforms, API gateways, and enclave-approved ...

Senior AI Solutions Engineer

Reston, VA · On-site

$57.50 - $74/hr

Capable of developing prototype solutions using common tools (e.g., FastAPI, React) * Familiar with generative AI concepts like RAG, prompt engineering, agents, structured output, multi-modal LLMs ...

Senior Labor Category: Minimum 8 years of experience with a Bachelor's degree; or 7 years of ... Strong experience with JavaScript (Hono.js) and Python (fastapi) * Strong experience with ...

Senior Labor Category: Minimum 8 years of experience with a Bachelor's degree; or 7 years of ... Strong experience with JavaScript (Hono.js) and Python (fastapi) * Strong experience with ...

Responsibilities Peraton Labs is seeking a Senior AI/ML Software Engineer to join the Labs Agentic ... Develop full-stack product features (FastAPI + React) that surface AI capabilities to users - from ...

Responsibilities Peraton Labs is seeking a Senior AI/ML Software Engineer to join the Labs Agentic ... Develop full-stack product features (FastAPI + React) that surface AI capabilities to users - from ...

Responsibilities Peraton Labs is seeking a Senior AI/ML Software Engineer to join the Labs Agentic ... Develop full-stack product features (FastAPI + React) that surface AI capabilities to users - from ...

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Senior Fastapi Developer information

See Reston, VA salary details

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How much do senior fastapi developer jobs pay per hour?

As of Jun 23, 2026, the average hourly pay for senior fastapi developer in Reston, VA is $64.22, according to ZipRecruiter salary data. Most workers in this role earn between $54.52 and $72.02 per hour, depending on experience, location, and employer.

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.
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Senior Full stack Python Developer (Angular)

Acess Global

Reston, VA • On-site

Contractor

Posted 28 days ago


Job description

 Job Title – Senior Full stack Python Developer (Angular)

Location – Reston, VA (In-person client interview)

Duration – Contract

Job Description:

Position Summary
The Senior Python Developer will design, develop, test, and implement cloud‑native applications, data pipelines, and backend services within AWS. The role requires strong Python engineering skills, AWS service expertise, foundational data engineering capabilities, and a disciplined approach to software quality and automation. The ideal candidate will be able to work collaboratively across teams, follow established engineering practices, and deliver secure, scalable, and maintainable solutions.

 Required Technical Qualifications

Python Development

  • Strong proficiency in Python for backend service development with 8-10 years of experience
  • Experience with relevant Python libraries such as PandasBoto3, and data‑processing packages
  • Proficiency with automated testing using PyTest, including fixtures, mocking, and parameterization
  • Understanding of clean code principles, error handling, type hints, and maintainable design

 API Engineering

  • Hands-on experience building RESTful APIs using FlaskDjango, or FastAPI
  • Knowledge of authentication and authorization mechanisms (JWT, OAuth2)
  • Experience implementing API versioning, request validation, and structured error handling
  • Understanding of performance considerations such as throughput, latency, and caching

 AWS Cloud Services

  • Practical experience with key AWS services including:
    Lambda, S3, Step Functions, Glue, EC2, ECS/Fargate, RDS, Redshift, CloudWatch
  • Ability to design event‑driven, serverless, and containerized architectures
  • Familiarity with distributed systems patterns such as retries, dead‑letter queues, and idempotent operations
  • Experience monitoring applications via CloudWatch metrics, logs, and alarms

 Infrastructure, DevOps, & Tooling

  • Hands-on experience with GitLab for version control and CI/CD pipeline development
  • Experience using Terraform (or similar) for infrastructure‑as‑code
  • Proficiency with Docker for containerized application development
  • Ability to use shell scripting and AWS CLI for operational automation
  • Familiarity with Agile development workflows (Jira, Confluence)

 AI‑Assisted Development Tools (Required Competency)

To support modern engineering productivity and code quality standards, candidates must:

  • Demonstrate familiarity with GitHub Copilot or comparable AI‑assisted development tools
  • Use AI tools responsibly to:
    • Accelerate development while maintaining code correctness
    • Generate and refine unit tests and integration test scaffolding
    • Improve readability, documentation, and boilerplate reduction
    • Assist with refactoring, code reviews, and exploratory coding
  • Understand organizational expectations around responsible AI usage, including validation, security, and compliance
  •  
  • This is a mandatory requirement, not a bonus skill.

 Data Engineering Skills (Required)

Candidates are expected to have practical exposure to foundational data engineering concepts, including:

  • Experience building or maintaining data pipelines using AWS GluePySpark, or Lambda‑based ETL flows
  • Working knowledge of SQL and relational databases (e.g., Postgres, Aurora, or MySQL)
  • Ability to optimize SQL queries (joins, aggregations, window functions)
  • Understanding of data modeling, data validation, and schema evolution
  • Familiarity with Redshift ingestion patterns (e.g., COPY operations) and performance optimization
  • Experience working with data stored in S3, including partitioning, data lifecycle considerations, and file formats (Parquet/JSON)

 Front-End Exposure

  • Basic familiarity with Angular, particularly for integrating backend APIs
  • Ability to read and modify UI components when needed

 Soft Skills & Engineering Mindset

  • Ability to communicate effectively with technical and non‑technical stakeholders
  • Strong analytical and problem‑solving capability
  • Demonstrated ability to navigate, understand, and improve existing codebases
  • Understanding of design patterns and architectural principles
  • Focus on reliability, scalability, automation, and long‑term maintainability
  • Ability to collaborate in Agile teams and provide high‑quality documentation