Hire FastAPI developers

Develop high-performance APIs with expert FastAPI developers. Ensure security and speed—hire now and onboard as fast as this week.

Tarik
AI Engineer
Turkey/(GMT +3:00)
Tarik is an expert in data engineering, machine learning, and large language models, holding a PhD in Graph Theory. He is also proficient in Python, Pandas, and Scikit-learn, and has successfully designed and delivered advanced NLP and AI solutions, including cutting-edge RAG systems. With a deep understanding of machine learning concepts and exceptional problem-solving skills, Tarik consistently drives impactful results in AI-driven and data-intensive projects!
Experience
12 years
Availability
Part-time & Full-time
FastAPIAWSPythonDockerLLMNLPPandasScikit-learnAI agent developmentBigQueryElasticSearchApache KafkaAIPostgreSQLUbuntuAPIDeep LearningRedisOpenAI APIFirebaseMicrosoft AzureApache AirflowSnowflakeGCPMLOpsLangChainPyTorchNeural NetworksTensorflowOAuthKafkaAirflowFlask
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Oleh
Full-stack Web Developer
Ukraine/(GMT +2:00)
Senior Full-Stack Developer & Team Lead with 10 years of experience in Python/Django, React, TypeScript, PostgreSQL, and AWS. Oleh boasts strong background building and scaling multi-tenant SaaS platforms, real-time systems, and enterprise solutions across fintech, education, logistics, CMS and cloud infrastructure. He led the development of a global backup & disaster recovery platform for 20,000+ businesses and a logistics platform with live tracking and route optimization.
Experience
11 years
Availability
Full-time
FastAPIDjangoReactTypescriptPythonNode.jsPostgreSQLKubernetesElasticSearchAWSStripe APIREST APIMongoDBDockerTailwind CSSExpress.jsMaterial UIDjango RESTCI/CDAmazon S3AWS LambdaOpenAI API
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Jose
AI Engineer
Mexico/(GMT -6:00)
Senior AI Engineer with a strong ML and back-end foundation, experienced in building and integrating GenAI solutions into real-world systems. Hands-on with RAG pipelines, LLMs, document AI, and prompt engineering. Jose holds a Master’s degree in Artificial Intelligence and is currently pursuing DevOps certifications to round out his skills. Throughout his career, he contributed to multiple startups, served as Head of Engineering Projects, and led computer vision initiatives, including image classification.
Experience
11 years
Availability
Full-time
FastAPIPythonLLMGCPAWSPyTorchLangChainKubernetesAmazon S3NumPyPySparkPandasPostgreSQLDockerDjangoFlaskOpenAIAPIAIData ScienceSQLLangGraphRAGVector Databases
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Bogdan
Full-stack Web Developer
Poland/(GMT +1:00)
Python developer with 8 years of experience, specializing in backend development and complex automation projects. Their main focus lies in building scalable, secure, and data-driven platforms, using technologies like AWS, Prefect, and Django. A key advantage is proven ability to lead projects from end-to-end, integrating advanced tools like AI/ML and RPA to solve complex business problems in domains like healthcare, education, and finance.
Experience
8 years
Availability
To be verified
FastAPIPythonDjangoReactPostgreSQLAWS SES.NETAWSLangChainLambdaAmazon RDSAmazon ECSRedisTailwind CSSGitHub ActionsCeleryDjango RESTSentrypytestMongoDBDockerGraphQLTypescriptAmazon S3API GatewayAmazon SQSKafka
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Alex
AI Engineer
Brazil/(GMT -3:00)
Alex is a senior AI Engineer with strong expertise in NLP, LLMs, and data science applications across industries. His hands-on experience in building RAG projects and enterprise knowledge solutions highlights his technical proficiency. His vast AI portfolio includes a multi-agent system for causal measurement across advertising platforms, AI chatbots, a semantic search system, and recommendation engines.
Experience
12 years
Availability
Part-time & Full-time
FastAPIPythonLLMAIAWSNLPGCPAWS LambdaNode.jsRAGLangChainOpenAI APIPineconeAmazon S3PostgreSQLAmazon ECSAmazon RDSAWS SageMakerRedisPydanticNumPyPyTorchSnowflakeKafkaElasticSearchVertex AITensorflowAirflowLangGraphLLaMA
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Ider
Back-end Web Developer
Peru/(GMT -5:00)
Meet Ider: Senior Back-end Web Developer with over 10 years of experience in Python and Django, and recent work with Flask and FastAPI in microservice architectures. He has delivered projects in fintech, analytics, and art/ML domains, demonstrating strong skills in data orchestration, cloud platforms, and integration testing. Ider is recognized for his open mindset, effective communication, and ability to handle both solo and team roles.
Experience
17 years
Availability
Part-time
FastAPIDjangoAgilePythonFlaskReactHTMLCircleCIJavaScriptAWSMicrosoft AzureGCPKafkaDocumentDBDockerRedisPostgreSQLElectron.jsBootstrapGherkinNode.jsMicrosoft SQL ServerJenkinsGitCeleryKubernetesCSSGrafanaAmazon S3AWS LambdaMongoDBPySparkPandas
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Natalia
AI Engineer
Malta/(GMT +1:00)
Natalia is a Senior AI engineer with 8 years of experience, specializing in Python, LLM systems, LangChain, OpenAI, RAG pipelines, and AWS. She has led engineering teams and architected production-grade AI platforms, combining backend, API, and MLOps expertise. Lemon.io's vetting confirms her strong communication, client-facing skills, and ability to translate requirements into robust solutions!
Experience
8 years
Availability
Part-time
FastAPIPythonOpenAILangChainLLMAWSPyTorchPrompt engineeringRAGMLOpsMicrosoft AzureGCPData StructuresCI/CDDockerAPICursorAI agent developmentAIData analysisRabbitMQMLflowVector DatabasesKubernetesMachine learningComputer VisionNeural NetworksDeep LearningData ScienceClaude Code
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Eduardo
Back-end Web Developer
Spain/(GMT +1:00)
Eduardo is passionate about his work, finding both enjoyment and challenge in coding. His priorities are building solid relationships with his team, sharing knowledge, and continuous learning. With 8 years of experience in Back-End Development, using Python, and some Front-End exposure, Eduardo has worked across various domains, making him a valuable asset to multiple projects, including healthcare, edtech, and more! He has also explored AI, experimenting with models using Ollama and integrating LLMs in his latest project with us.
Experience
13 years
Availability
Full-time
FastAPIPythonDjangoFlaskAngularPHPDrupalSymfonyDjango RESTGWTJSONCelerySeleniumNumPyAWSMySQLPostgreSQLMongoDBDockerFirebaseDocker ComposeWeb scrapingPlaywrightBeautifulSoup
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Arzu
Back-end Web Developer
Poland/(GMT +1:00)
Arzu is a senior backend engineer with 8 years of professional Python experience and strong exposure to LLMs, RAG, and fine-tuning workflows. He has delivered production-grade distributed systems, contributed to AI-powered media intelligence tools, and mentored junior developers. Feedback highlights his clear communication, honest self-assessment, and collaborative approach!
Experience
8 years
Availability
Full-time
FastAPIPythonAI agent developmentLLMLangChainLangGraphTypescriptFine-tuningGolangCeleryPostgreSQLRedisAWSDjangoRabbitMQMongoDBBitbucketDockerLLaMARAGKubernetesTerraformGCPBigQueryKafkaFlaskOpenAI APIPineconeWeb scrapingVector DatabasesHelmReactLinuxMake
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Reached out on Monday evening, connected Tuesday morning, had four qualified candidates by Wednesday.

Brian DeSpainCEO, 10X ERP

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We had an excellent experience. Process is fast from the initial intake through setting up payment.

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Your developer starts with a project—we deal with a contract, monthly payouts, and what not

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Why hire FastAPI developers through our platform?

Find devs with skills you can trust with Lemon.io, so you can stop looking and start making progress again.

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Every one of our 1300+ senior engineers has passed through our four-step vetting process, covering everything from soft to hard skills.

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What you should know about modern FastAPI devs

by Inna Chernova

Recruiting Lead at Lemon.io

Verified Expert

Hiring Guide: FastAPI Developers

If you’re planning to hire FastAPI developers, you’re looking for specialists who can build high-performance Python web applications and APIs using one of the fastest-growing frameworks in the modern backend ecosystem. FastAPI is known for its incredible speed, automatic documentation, and ease of integration with modern tools, making it a top choice for businesses building scalable APIs and data-driven applications. Whether you’re developing a new SaaS product, an AI-driven backend, or a microservices architecture, experienced FastAPI developers can make your infrastructure efficient, secure, and future-ready.

Why Hire FastAPI Developers?

FastAPI is built on modern Python standards such as async/await and uses Pydantic for data validation, making it a developer favorite for building RESTful and GraphQL APIs that are both fast and reliable. FastAPI developers can deliver solutions up to 2–3× faster than traditional frameworks like Flask or Django when handling concurrent requests. Hiring a FastAPI expert means your system will not only be fast but also maintainable, type-safe, and cloud-ready.

Core Responsibilities of FastAPI Developers

Design, develop, and maintain RESTful APIs and microservices using FastAPI.

Implement asynchronous I/O operations for optimal performance and scalability.

Integrate with databases such as PostgreSQL, MongoDB, or Redis using ORM tools like SQLAlchemy or Tortoise ORM.

Ensure API authentication, security, and data validation using OAuth2, JWT, and Pydantic models.

Write efficient test cases using PyTest and automate CI/CD pipelines.

Deploy applications on AWS, GCP, or Azure with Docker and Kubernetes.

Collaborate with front-end and DevOps teams for seamless integration and delivery.

Key Technical Skills to Look For

Languages & Frameworks: Python 3.9+, FastAPI, Flask, Django, SQLAlchemy, Pydantic.

API Design: REST, GraphQL, WebSockets, and OpenAPI documentation.

Databases: PostgreSQL, MongoDB, MySQL, Redis.

Asynchronous Programming: asyncio, aiohttp, and uvicorn for non-blocking I/O.

Authentication: OAuth2, JWT, API tokens, and session management.

Testing: PyTest, UnitTest, Mocking frameworks.

DevOps Tools: Docker, Kubernetes, GitHub Actions, CI/CD pipelines.

Cloud Deployment: AWS Lambda, Google Cloud Run, Azure Functions.

When to Hire FastAPI Developers

When building modern, high-speed APIs or microservices architectures.

When integrating machine learning models into production environments.

When migrating from Flask or Django to a more performant Python framework.

When developing real-time applications like chat apps or IoT dashboards.

When scaling backend infrastructure for AI, analytics, or automation platforms.

How to Hire the Right FastAPI Developer

1. Define Your Project Scope

Determine whether you need a backend developer who can focus solely on API performance or a full-stack engineer comfortable with front-end frameworks like React or Vue. Define your database and infrastructure requirements early to find candidates with the right expertise.

2. Evaluate Technical Experience

Look for developers with proven experience in building production-level APIs using FastAPI. Ask for GitHub or portfolio examples showcasing code written with Pydantic models, dependency injection, and async operations.

3. Interview Questions

How does FastAPI compare to Flask or Django in terms of performance?

Explain how Pydantic is used for request validation in FastAPI.

What’s the role of async/await in FastAPI applications?

How would you secure an API using JWT in FastAPI?

How do you handle background tasks or dependency injection?

4. Technical Assessment

Ask candidates to build a simple REST API with FastAPI that performs CRUD operations and includes authentication. Evaluate their code structure, understanding of dependency injection, and use of async functionality.

Average Cost of Hiring FastAPI Developers

FastAPI developers’ rates vary based on skill level, location, and project scope. Typical hourly rates include:

Junior Developers (1–3 years): £35–£55/hour

Mid-Level Developers (3–6 years): £60–£95/hour

Senior Developers (7+ years): £100–£140/hour

When you hire through Lemon.io, you get access to pre-vetted FastAPI developers experienced in scalable architecture, asynchronous programming, and modern deployment practices.

Why Hire Through Lemon.io?

Lemon.io connects you with elite FastAPI developers who excel at building robust, high-performance APIs. All our developers are tested for their technical depth, async capabilities, and collaboration skills. From prototype to production, our engineers help you scale efficiently.

Hire Expert FastAPI Developers →

Hire Python Developers – Build robust backend systems with modern Python frameworks.

Hire Django Developers – Develop secure and scalable web apps with Django.

Hire Flask Developers – Create lightweight APIs and web applications quickly.

Hire DevOps Engineers – Automate and scale your FastAPI applications efficiently.

Hire Backend Developers – Strengthen your API architecture with experienced engineers.

FAQs About Hiring FastAPI Developers

What is FastAPI used for?

FastAPI is a modern Python framework used for building APIs, web applications, and microservices that require high speed and asynchronous capabilities.

Is FastAPI faster than Flask or Django?

Yes. FastAPI is built on ASGI and uses async programming, making it significantly faster than Flask and Django in handling concurrent requests.

Can FastAPI be used for production?

Absolutely. FastAPI is production-ready and trusted by major companies for performance-critical applications, including AI and IoT platforms.

What are the advantages of FastAPI?

FastAPI offers automatic documentation, async support, strong type checking, and superior performance for modern backend systems.

Can I hire remote FastAPI developers through Lemon.io?

Yes. Lemon.io connects you with top remote FastAPI developers who can integrate seamlessly into your projects and deliver high-quality code.

Book a call with an expert so you can be sure in your hiring strategy

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Why hire FastAPI

Over 6500 companies use FastAPI as their main framework, including giants like Google, Amazon and Lyft.

High-quality web apps

FastAPI's modular approach lets devs reuse components, so they can seamlessly manage app complexity.

Faster development process

FastAPI's architecture and a vast library of pre-built components speed up development, so you can get to market sooner.

Enjoyable user experience

From smooth, responsive interfaces to reduced loading times, devs can use FastAPI to boost usability.

Scaling made easy

FastAPI's modular, component-based architecture makes it easy to scale applications as traffic grows.

Case studies

Aerospace

The experience with Lemon.io has been fantastic. The interview process has been good, the caliber of people – excellent and integration has been very smooth.

Marc HorowitzCOO of SkyFi

Explore case

Telecommunications

We needed extra developers to clean off all these bugs so the company could skyrocket.

Conor MackenDirector of Engineering

Explore case

We needed extra AI engineers to keep our ambitious project running.

Mike LukimanFounding Senior Software Engineer at Everstar.ai

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Frequently asked questions

A strong FastAPI developer knows more than just Python, they understand what makes it different from the rest. If you want to hire someone, we heavily recommend going for people who have at least some FastAPI experience in their projects: it will allow you to evaluate what they are really worth.

Make sure to explore the FastAPI Community, where enthusiastic users chat and share information.

Also, delve into wider Python communities on webdev and API creation side. There is a chance you might find good pros out there. Also, try your luck with networks like LinkedIn and online job boards.

If you are looking to find FastAPI talent fast, platforms such as Lemon.io help in providing the pre-vetted pool of FastAPI developers for quick onboarding.

We’re aware you want full confidence in your developer. For that reason, we provide a no-risk trial to ensure you have the ideal developer for your project. Our paid trial guarantees 20 hours when you can get the FastAPI developer working on your real project to determine their ability. The trial session ensures you test their coding style, problem-solving attitude, and communication skills.

Furthermore, we guarantee a zero-risk replacement on our FastAPI developers. Suppose you’re not content with their work for any reason, Lemon.io will offer a swift replacement at once.

Yes, there are many openings available for backend and FastAPI developers. FastAPI is a modern (high-performance) web framework for building APIs with Python 3.6+ based on standard Python type hints…, a simple, easy to learn Python web framework aimed at crafting web applications and APIs. It has grown in popularity because of how fast and efficient it is to set up. Many Python developers use FastAPI because of this type hinting, automatic documentation generation and asynchronous feature.

With more and more companies migrating towards building microservices & API-driven architectures the demand for experienced FastAPI developers is growing on a regular basis.

We have a network of talented FastAPI developers who are prepared to share their expertise with your project.

Our average response time to match you with an available FastAPI developer is 1-2 days. From there, it’s a couple more days if you want to run your own interview. Or, you can sign them up and start working right away. Actually, 70% of our clients are happy with the first dev they get.

Given how popular FastAPI developers are, they usually charge hourly fees between $60 to $140. Of course, this range can be influenced by a lot of factors that are specific to the developer and project itself.

The more battle-tested dev who can crank out high-powered production APIs super quickly, will have higher rate then someone new to framework. Of course, location is a big factor too with developers hailing from more expensive areas carrying the bigger rate. Finally, the complexity of your project (especially when you work with integrating other systems or have big load) also can affect the final price.

What does the Lemonio vetting process for FastAPI developers look like?

1. We review all applications, with a focus on FastAPI experience and Python knowledge, as well as API & Web app building expertise. Additionally, we factor in their English language skills and location.
2. Our recruiters go through each resume to match experiences with user profiles, such as LinkedIn, to confirm accuracy and update data.
3. Screening call with a mix of tech-based queries and coding challenges that assess and test their knowledge of real FastAPI solutions.
4. A thorough technical interview where we evaluate the communication, coding style and do live coding tasks to check developers skills in practical FastAPI.

This intensive approach acts as a filter to ensure that only the highest quality FastAPI developers join our network.

FastAPI’s emphasis on type hinting, automatic API documentation generation and asynchronous development are nothing short of a developer’s dream: they lead to faster development cycles while creating cleaner more maintainable code base.

Which means getting your APIs to market faster, with less bugs and more reliability. From building microservices to integrating applications and exposing public APIs: a FastAPI developer can make the most out of this mighty framework helping you build a more agile, responsive, and scalable system.

You need the best developers who can create high performance web applications & APIs. Lemon.io gives you access to such a network of talented developers with expertise in FastAPI, which means far less time vetting candidates.

Opting for Lemon.io when hiring FastAPI makes life easier by taking away the stress and time involved in sourcing, screening and negotiations. Take a developer for a test-drive with our risk-free trial period and have peace of mind that you will never find yourself stranded without the perfect talent.

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