29 open jobs on The Stack list FastAPI as a key skill. They come from 15 companies in 9 countries, and 29 offer visa sponsorship. All were posted in the last 60 days.
This page lists jobs whose listing names FastAPI in its key skills. We do not guess skills from the job title.
What you'll do: Design, implement, and deploy production-grade LLM-based and agentic systems for medical records extraction and reasoning; build and maintain evaluation harnesses; design multi-step, tool-using workflows with guardrails and…
What they ask for: 6+ years in ML/AI with NLP/LLMs; hands-on experience with OpenAI and Anthropic models/APIs; experience with Langfuse, LiteLLM, and vLLM; strong Python skills with FastAPI; Postgres; Docker and Kubernetes; cloud platforms (AWS); experience…
What you'll do: You will participate in the development of new and existing mobile applications using React Native and native iOS technologies. Additionally, you will implement reusable UI components, perform automated testing, and troubleshoot day-to-day…
What they ask for: Candidates must hold a BSc/BA in Computer Science or a related field and possess at least 3 years of React Native experience. Proficiency in native iOS development and familiarity with CI/CD environments are required.
What you'll do: Design and build backend systems and APIs to support real-time, business-critical accounting logic. Manage the full feature lifecycle including architecture, CI/CD, testing, monitoring, and integration with third-party tools.
What they ask for: Requires 5+ years of backend engineering experience with strong proficiency in database design and complex business logic. Candidates should have experience deploying on AWS and a strong preference for Python and modern web frameworks.
What you'll do: You will build and operate reliable voice AI systems, including retrieval-augmented generation and distributed call schedulers. Additionally, you will develop memory and reasoning systems to maintain context across voice, messaging, and…
What they ask for: The role requires production experience with distributed systems and proficiency in Python, FastAPI, or TypeScript. Candidates should also have a background in real-time systems, voice infrastructure, and experience shipping AI or…
What you'll do: You will own end-to-end product delivery by building features across the frontend, backend, and integrations to create a coherent user experience. Additionally, you will set engineering standards for quality, reliability, and performance…
What they ask for: The role requires strong experience in building production web platforms using modern frontend and backend frameworks. Candidates should be comfortable with Python, relational databases, and modern cloud infrastructure, with a bias toward…
What you'll do: You will build and ship end-to-end AI services, including data pipelines, model development, and asynchronous REST APIs. Additionally, you will maintain training pipelines, implement retrieval systems, and mentor junior engineers to ensure…
What they ask for: Candidates must hold a bachelor's degree in a relevant field and possess at least 3 years of backend development experience with machine learning applications. Strong proficiency in Python, FastAPI, and containerized environments like…
What you'll do: Integrate machine learning models into production applications and develop AI agents for embedded Linux devices. Design and maintain backend services, APIs, and inference pipelines while ensuring performance and reliability.
What they ask for: Strong proficiency in Python and experience with backend services and REST APIs are required. Practical knowledge of Linux, ML inference lifecycles, and embedded systems development is essential.
What you'll do: You will design and maintain backend services and APIs using Python, Node.js, and TypeScript while delivering end-to-end features including React-based user interfaces. Additionally, you will collaborate with cross-functional teams to…
What they ask for: The role requires over 5 years of professional software engineering experience with deep expertise in Python and backend development. Candidates must also have hands-on experience with Node.js, TypeScript, React, and cloud environment…
What you'll do: You will build and optimize AI voice and agent systems for customer-facing workflows, owning features from end to end. This includes developing memory systems, improving observability, and connecting external systems to enhance agent…
What they ask for: Candidates must have at least 3 years of experience in full-stack development with production experience in Python, FastAPI, or TypeScript and React. Proficiency in distributed systems, real-time audio infrastructure, and cloud platforms…
What you'll do: You will build and maintain reliable voice AI systems, including retrieval-augmented generation and dynamic model routing. Additionally, you will design distributed call scheduling systems and improve observability to ensure resilient…
What they ask for: Candidates must have at least 2 years of experience in product software development and distributed systems. Proficiency in Python, FastAPI, or TypeScript, along with experience in cloud infrastructure and data stores, is required.
What you'll do: You will own end-to-end product delivery by building features across frontend, APIs, and data integrations while setting engineering standards. Additionally, you will partner with product and design teams to shape technical direction and…
What they ask for: The role requires experience as a senior engineer building production web platforms with modern frontend and backend frameworks. Candidates should be comfortable with relational databases, technical decision-making, and possess a strong…
What you'll do: You will lead and develop teams of data engineers to design and deliver scalable data solutions for complex business challenges. You will also provide technical direction for data pipelines and infrastructure while collaborating with…
What they ask for: The role requires at least 4 years of data engineering experience and proven leadership capabilities in complex environments. Candidates must possess strong Python skills, experience with Apache Spark, and proficiency in cloud-based data…
What you'll do: You will develop user-facing interfaces and backend services to support research workflows, including data modeling and API development. Additionally, you will collaborate with researchers to maintain performance, investigate bugs, and…
What they ask for: Candidates should have at least 3 years of experience in full-stack application development, with proficiency in TypeScript, React, Python, and SQL. Experience with PostgreSQL, AWS, and research-oriented software is highly valued.
What you'll do: You will build and maintain the infrastructure required to transition AI models from experimental phases to dependable production systems. This includes managing model access, tracing, evaluation, fine-tuning, and high-throughput serving.
What they ask for: Candidates must have a Bachelor's degree or higher in Computer Science or AI and strong backend engineering fundamentals with Python. Proven experience in scaling self-service AI platforms and deploying ML systems with high reliability and…
What you'll do: You will build and maintain reliable voice AI systems, including speech transcription, dynamic model routing, and distributed call scheduling. Additionally, you will develop memory and reasoning systems to preserve context across customer…
What they ask for: The role requires at least 2 years of experience in production software development, specifically with distributed systems and end-to-end product delivery. Proficiency in Python, FastAPI, or TypeScript, along with experience in AI models…
What you'll do: You will own the core product platform, building APIs, SDKs, and services that connect customer systems to Refractal's infrastructure. This includes designing authentication, multi-tenant isolation, and real-time data streams while working…
What they ask for: The ideal candidate is a product-minded platform engineer with strong backend experience, particularly in Python and FastAPI. You should have expertise in API design, observability, database management, and frontend development with…
What you'll do: You will build and maintain applications and backend services to support research workflows, including task management and data analysis. You will also design APIs, manage PostgreSQL data models, and collaborate with researchers to improve…
What they ask for: The role requires at least 3 years of experience in application development with strong proficiency in TypeScript, React, or Python. Candidates should have experience designing APIs and working with relational databases like PostgreSQL.
What you'll do: Design, build, and maintain Python services for platform integration and lifecycle management within the Foundry environment. Own the deployment packaging, CI/CD pipelines, and infrastructure integrations to ensure platform stability…
What they ask for: Requires 5+ years of experience in platform or backend engineering with at least 2 years of production Kubernetes operations. Candidates must have strong proficiency in Python, REST API development, and experience deploying software into…
What you'll do: You will build and maintain high-throughput data pipelines for autonomous laboratory systems, integrating edge-to-cloud telemetry and hardware data. You will collaborate with researchers and engineers to create model-ready datasets and…
What they ask for: The role requires strong Python programming experience and a deep understanding of real-time data streaming and system architecture. Candidates should have experience with high-frequency data capture and a commitment to robust…
What you'll do: You will design and operate distributed voice AI systems, including RAG, LLM routing, and call scheduling. Additionally, you will build memory and reasoning systems to maintain context across multi-channel customer interactions.
What they ask for: The role requires production experience with distributed systems, Python or TypeScript, and hands-on experience with LLMs or agentic systems. Candidates must be comfortable working independently and possess a team-first mindset.
What you'll do: The Senior Mobile Developer will participate in the development of new and existing mobile applications using React Native and Kotlin. They are also responsible for implementing reusable UI components, conducting automated testing, and…
What they ask for: Candidates must hold a BSc/BA in Computer Science or a related field and possess at least 3 years of experience with React Native for Android. Proficiency in native Android development and experience with CI/CD environments are required.
What you'll do: You will participate in the development of mobile applications using React Native and native Kotlin/Jetpack Compose. Additionally, you will be responsible for implementing reusable UI components, writing automated tests, and…
What they ask for: Candidates must hold a bachelor's degree in Computer Science or a related field and possess at least 3 years of experience with React Native. Proficiency in native Android development and familiarity with CI/CD environments are also…
What you'll do: You will participate in the development of new and existing mobile applications using React Native and Swift/SwiftUI. Additionally, you will implement reusable UI components, perform automated testing, and troubleshoot day-to-day business…
What they ask for: Candidates must hold a BSc/BA in Computer Science or a related field and possess at least 3 years of React Native experience. Proficiency in native iOS development and familiarity with CI/CD environments are required.
What you'll do: You will design, build, and maintain Python services for integrating external applications and infrastructure into the Foundry platform. Additionally, you will manage deployment packaging, CI/CD pipelines, and platform integrations across…
What they ask for: Candidates must have at least 5 years of experience in platform or backend engineering, including 2 years of production Kubernetes experience. Proficiency in Python, REST API development, and infrastructure packaging tools like Helm is…
What you'll do: You will be responsible for productionizing machine learning models by building and maintaining CI/CD deployment pipelines. Additionally, you will monitor model performance in production and collaborate with data scientists to optimize…
What they ask for: Candidates must have over 3 years of experience in the machine learning field and possess strong Python and SQL skills. Proficiency in English at a B2 level is required, along with experience in cloud platforms and containerization tools.
What you'll do: Build and ship end-to-end internal AI services, including data pipelines, model development, and API orchestration. Maintain training pipelines, implement retrieval systems, and ensure model performance through rigorous evaluation and…
What they ask for: Requires a bachelor's degree in a relevant field and 3+ years of backend development experience with machine learning or LLM applications. Candidates must be proficient in Python, FastAPI, and containerized environments like Kubernetes.
What you'll do: Lead and develop a team of AI engineers to build and deploy generative AI marketing solutions while ensuring robust code quality and delivery. Collaborate with marketing stakeholders to translate business needs into technical…
What they ask for: Requires a bachelor's degree in a technical field and at least 5 years of backend development experience, including 2 years specifically with LLMs or generative AI. Candidates must demonstrate strong leadership skills and proficiency in…
What you'll do: You will take full ownership of building and scaling agentic AI systems, including retrieval pipelines and LLM orchestration. Additionally, you will design automated evaluation frameworks and ensure seamless integration of AI…
What they ask for: Candidates must have a proven track record of deploying complex LLM-driven systems in production environments. Expert-level proficiency in Python and experience with data architectures for unstructured information are mandatory.
What you'll do: You will define and evolve system architecture across backend, web, mobile, and infrastructure while leading the delivery of a secure financial product. Additionally, you will mentor engineers, set technical standards, and partner with…
What they ask for: Candidates must have 7–10 years of experience building consumer-facing products with strong backend foundations and system design expertise. Proficiency in Python, PostgreSQL, AWS, and modern cloud engineering practices is required, along…