Fastapi Jobs

Shippo is hiring a Senior FullStack Engineer to lead the App team in building scalable, user-centric web features and mentoring engineers across product initiatives.

Experienced full-stack engineer needed to build performant, well-tested web and backend systems for Shippo's shipping platform in a remote-first US role.

Help build and scale Alex’s real-time AI interviewing platform as a full stack engineer working on both frontend consumer experiences and backend enterprise integrations in our SF office.

Experienced Full Stack Engineer sought to develop Next.js/React frontends and Python/FastAPI backends for candidate-facing and internal operations platforms at a leading healthcare workforce company.

Sure is hiring an Associate Software Engineer to develop Python/Django backend services and APIs for its digital insurance platform in a remote-first, mentorship-driven environment.

Kastle is seeking a Founding Engineer to design and scale backend and LLM-driven systems powering an AI OS for consumer lending with emphasis on low-latency, high-availability production deployments.

Collectly is hiring a Senior Software Engineer to own end-to-end development of scalable healthcare billing features that improve provider and patient financial workflows.

Senior Software Engineer needed to build scalable backend and frontend systems for a fast-growing healthcare billing platform, with initial onsite onboarding in Santa Monica and flexible remote work thereafter.

Billd is hiring a Staff Full-Stack Developer to lead development of scalable fintech applications using FastAPI, Vue.js, .NET, and AWS while leveraging AI developer tools to improve delivery and quality.

Lead the end-to-end development and deployment of generative AI (RAG and agent) solutions at CVS Health, leveraging Python, modern GenAI frameworks, and cloud infrastructure to drive enterprise adoption.

Discogs seeks a Senior Full Stack Engineer to deliver scalable full-stack solutions, modernize legacy systems, and mentor engineering peers in a remote-friendly organization.

HelloGov AI is hiring an on-site Back-End Oriented Software Engineer in Miami to design and maintain backend services, implement real-time features with Socket.io and Twilio, and integrate APIs that power our government tech platform.

Experienced Senior Software Engineer wanted to design and deliver high-impact backend and frontend features for a fast-growing healthcare payments platform, with hybrid work and initial onboarding in Los Angeles/Santa Monica.

Build and maintain scalable backend services using Python and Ruby on Rails for a remote engineering team focused on reliable APIs and performant systems.

Build and ship generative AI-powered full-stack features at Rhythms, integrating LLMs and agent frameworks to transform team productivity.

An experienced full-stack engineer to develop cloud-native, API-driven applications and data integrations for Blackstone’s Private Wealth fundraising technology.

Work with Experian's Financial Services Division to design, build and operate real-time, high-throughput API platforms using Python and cloud-native technologies.

PDI Technologies is looking for a Junior Data Engineer to develop ETL, manage a Postgres data warehouse, build dbt transformations, and support FastAPI endpoints for AI-driven security and analytics products.

Peraton seeks a Cyber Software Engineer in Herndon to build and secure containerized, mission-focused software using Agile DevSecOps practices and modern tooling.

Experienced full-stack engineer needed to lead development of scalable fintech applications using FastAPI, Vue.js, .NET, and AWS while driving best practices and mentoring teammates.

Commure + Athelas is hiring an NYC-based Backend Software Engineer to help build and run production-grade revenue cycle management services using Python and cloud-native tooling.

Senior Full Stack Engineer needed to build and own end-to-end systems—React/TypeScript frontends, Python/FastAPI backends, and real-time fleet integrations—that scale Nevoya's electric trucking operations.

Senior full-stack engineer needed to architect and build scalable fintech solutions using FastAPI, Vue.js, .NET/Angular, and AWS while leveraging AI development tools and mentoring junior engineers.

Senior Full Stack Engineer needed to lead technical efforts, modernize systems, and mentor engineers while building and operating Discogs' high-traffic web services.

Parable is hiring a Senior AI Engineer to design and ship agentic LLM workflows and scalable AI backends that deliver real-time analytics and strong data governance for enterprise customers.

Evertune AI seeks a Senior Full-Stack Software Engineer (frontend-focused with Vue.js and backend Python experience) to help build polished, data-rich interfaces and scalable backend services for our AI-driven marketing platform.

Morgan Stanley is hiring a VP-level Senior AI Platform Engineer to architect and implement a firmwide Generative AI platform using Python, Kubernetes/OpenShift, and large-scale data and API ecosystems.

Work on the frontend of LocalStack to build intuitive, high-performance UI components and ship full-stack features that improve the developer experience for cloud applications.

Exponent seeks a Systems Engineer to build and operate the infrastructure that powers its agent runtime, enabling scalable, fault-tolerant automation across engineering workflows.

Help build and ship full-stack AI-driven engineering agents at Exponent, working across frontend and backend systems while partnering with customers and founders to deliver tangible product outcomes.

Experienced backend Python engineer with LLM familiarity and an active TS/SCI + polygraph sought to build scalable, secure APIs and integrate LLMs into production systems for a leading national security-focused software firm.

Shippo is hiring an experienced Engineering Manager to lead a remote backend team building high-volume Rating APIs that power global e-commerce shipping.

Build scalable backend systems and integrate LLMs into commercial real-estate software as a remote Senior Backend Engineer with Truelogic.

Experienced Python engineer needed to build and deploy AI-driven applications (FastAPI/Streamlit, SQLAlchemy/Postgres, Langchain/LLMs) at Fuel Cycle’s Los Angeles HQ in a hybrid role.

Senior Backend / Full Stack Engineer to design and build real-time fleet management, routing and integration systems powering Nevoya's electric trucking operations across North America.

Senior Frontend Engineer needed to build scalable, high-performance React/TypeScript interfaces that power Nevoya’s AI-driven logistics platform for fleet dispatch and operations.

Senior Full Stack Software Engineer for a YC-backed AI recruiting startup to build low-latency consumer systems and scalable enterprise integrations in an in-person San Francisco role.

Join DataRobot's Customer Engineering team to build production-ready AI solutions, lead customer engagements, and accelerate enterprise AI adoption with hands-on Python and ML engineering.

Help build and scale Termblocks' agentic AI platform for capital markets as a Founding Backend Engineer focused on backend architecture, production systems, and LLM integrations in Midtown Manhattan.

Help build and scale Termblocks' agentic AI platform for U.S. capital markets as a Founding AI Engineer, owning features from design to production and experimenting with cutting-edge models.

Hivex seeks an experienced Senior AI Developer to architect and deliver scalable AI systems and data pipelines for impactful, production-grade applications in a fully remote US role.

Be a founding senior engineer at an early-stage fintech startup building agentic AI for capital markets, owning features from design to production and driving model-led product innovation.

Work on a distributed team building Python backend systems and real-time AI-driven solutions to accelerate EV fleet charging adoption.

Termblocks is hiring a Founding Senior Backend Engineer to build and scale agentic AI infrastructure for the U.S. Capital Markets at an early-stage, VC-backed startup in Midtown Manhattan.

Help build the context and orchestration layer for an AI-first revenue platform as a Senior Full-Stack Engineer, owning features from data ingestion to agent execution and product surfaces.

Circuit is hiring a Senior Python Backend Engineer to own and scale Python-based ML services and developer-facing tooling that connect models, data pipelines, and product experiences.

Callidus is hiring a Principal/Staff Full-Stack Engineer to build scalable GenAI legal products using Python, React/Next.js, and modern LLM workflows in San Francisco.

TwelveLabs is hiring a Software Engineer, Machine Learning to build fault-tolerant, low-latency ML services and production APIs for cutting-edge multimodal video understanding systems.

Help scale Experian’s real-time API platform as a Software Engineer focused on Python, AWS, and low-latency distributed systems.

Experienced AI developer sought to build and optimize scalable AI systems, APIs, and data pipelines for high-impact projects in a fully remote US role.