76 to 100 of 102 FastAPI Jobs in London

enabling businesses to build, deploy, and manage AI-driven agents with robust backend capabilities. Implement scalable APIs and services in Python, leveraging frameworks like FastAPI, to support real-time AI applications and large-scale data processing. Build and maintain full stack web applications using modern frameworks and technologies Next.js, React … of experience developing backend or full-stack applications, with a strong emphasis on backend engineering. Strong proficiency in Python and backend frameworks such as FastAPI or Flask. Familiarity with frontend technologies (Next.js, React, TypeScript, Tailwind) with an eye for building polished, user-friendly interfaces. Experience making trade-offs between speed More ❯

to detail to create scalable, user-friendly solutions in our fast-paced startup. Key Responsibilities Design and develop full-stack solutions using Python (Django, FastAPI) and modern frontend frameworks (React, Next.js, TypeScript) or similar technologies Architect and build secure, scalable applications while iterating quickly in an agile startup environment Design … with modern frontend technologies like React, Next.js, or equivalents Deep knowledge of relational databases, especially PostgreSQL Technical Skills Proficiency in Python backend frameworks (Django, FastAPI) or demonstrated ability to master them quickly Solid experience with modern frontend development, including component-based architecture and state management Strong command of CSS frameworks More ❯

to detail to create scalable, user-friendly solutions in our fast-paced startup. Key Responsibilities Design and develop full-stack solutions using Python (Django, FastAPI) and modern frontend frameworks (React, Next.js, TypeScript) or similar technologies Architect and build secure, scalable applications while iterating quickly in an agile startup environment Design … with modern frontend technologies like React, Next.js, or equivalents Deep knowledge of relational databases, especially PostgreSQL Technical Skills Proficiency in Python backend frameworks (Django, FastAPI) or demonstrated ability to master them quickly Solid experience with modern frontend development, including component-based architecture and state management Strong command of CSS frameworks More ❯

testing; 1-2 years in manual. • Developer background is a plus. • Familiar with Playwright/Cypress + Jest/Postman (JS) or Selenium/FastAPI (Python). • No audio expertise needed (we have in-house tools). What We Offer: A chance to be at the forefront of technological innovation More ❯

monitoring, client profiling, and analytics. Developing responsive frontend interfaces using React and TypeScript , based on detailed FIGMA designs. Creating scalable microservices and APIs using FastAPI , Pydantic , SQLAlchemy , and Poetry . Designing and optimizing database schemas and async APIs for high throughput. Collaborating with DevOps engineers on containerisation and deployment pipelines … Kubernetes, KEDA). Ensuring high standards of code quality, performance, and documentation throughout. Tech Stack: Frontend : React, TypeScript Backend : Python (FastAPI, SQLAlchemy, Pydantic, Alembic, Mypy, Ruff, Pytest) Databases : PostgreSQL/SQL Server/MySQL DevOps : Docker, Kubernetes, Azure, KEDA About You: 1–4 years’ experience in a full-stack or More ❯

monitoring, client profiling, and analytics. Developing responsive frontend interfaces using React and TypeScript , based on detailed FIGMA designs. Creating scalable microservices and APIs using FastAPI , Pydantic , SQLAlchemy , and Poetry . Designing and optimizing database schemas and async APIs for high throughput. Collaborating with DevOps engineers on containerisation and deployment pipelines … Kubernetes, KEDA). Ensuring high standards of code quality, performance, and documentation throughout. Tech Stack: Frontend : React, TypeScript Backend : Python (FastAPI, SQLAlchemy, Pydantic, Alembic, Mypy, Ruff, Pytest) Databases : PostgreSQL/SQL Server/MySQL DevOps : Docker, Kubernetes, Azure, KEDA About You: 1–4 years’ experience in a full-stack or More ❯

resource efficiency, contributing to the continuous development of their consulting offering and analytical capabilities as the company grows. Skills & Experience Python (incl. pandas, numpy, fastapi, dash/plotly) Database development: e.g. SQL, PostgreSQL, SQLAlchemy, data warehousing, ETL pipelines Cloud computing & DevOps: e.g. AWS (EC2, Lambda, S3), Docker, CI/CD … serverless architecture Frontend development: e.g. JavaScript/TypeScript, React, Dash, or similar frameworks Backend APIs: FastAPI, Flask, RESTful API design UI/UX design for data tools (e.g., streamlining internal workflows and dashboards) Experience with energy systems modelling/optimisation, quantitative risk modelling, or stochastic simulation Experience working in consulting More ❯

resource efficiency, contributing to the continuous development of their consulting offering and analytical capabilities as the company grows. Skills & Experience Python (incl. pandas, numpy, fastapi, dash/plotly) Database development: e.g. SQL, PostgreSQL, SQLAlchemy, data warehousing, ETL pipelines Cloud computing & DevOps: e.g. AWS (EC2, Lambda, S3), Docker, CI/CD … serverless architecture Frontend development: e.g. JavaScript/TypeScript, React, Dash, or similar frameworks Backend APIs: FastAPI, Flask, RESTful API design UI/UX design for data tools (e.g., streamlining internal workflows and dashboards) Experience with energy systems modelling/optimisation, quantitative risk modelling, or stochastic simulation Experience working in consulting More ❯

creating reusable tooling and components, and ensuring a smooth rollout of the AI assistant. Responsibilities of the role: Develop, test, and maintain APIs using FastAPI or Flask. Work with ORM tools (such as SQLAlchemy) and execute plain SQL queries. Design and implement web components using HTML, JavaScript, JSON, and React. … of AI-powered solutions. What we require from the candidate: Experience in full-stack development using Python and React. Experience in API development using FastAPI or Flask. Proficiency in ORM frameworks (eg, SQLAlchemy) and SQL. Strong understanding of web development standards, including HTML, JavaScript, JSON, and React. Good communication skills More ❯

with technical leaders to shape and implement Shell's strategy What you bring Have substantial experience in technical and process guidance Experience in Python FastAPI development, Spark/pySpark, Typescript/React,T-SQL/SQL/Azure SQL and other programming frameworks and paradigm Able to mix strategic and More ❯

Infrastructure Engineer to play a pivotal role in shaping our technological landscape. Key Responsibilities: Backend System Enhancement : Develop robust APIs and services using Python (FastAPI, Pydantic) to integrate with our advanced AI systems. Infrastructure Development : Design and optimize cloud-based infrastructures that support our AI platform and automation services. AI … Redis Cloud Solutions : AWS, Google Cloud, Serverless Architectures Data Pipelines : DBT, BigQuery, Terraform Backend Programming : Python Qualifications: Backend Development Proficiency : Strong skills in Python, FastAPI, and Pydantic. Infrastructure Expertise : Familiarity with AWS services (Lambda, S3, ECS, etc.) and Terraform. Event-Driven Systems Understanding : Experience designing and implementing event-driven architectures More ❯

and accessible components from FIGMA designs. Collaborating closely with backend engineers to integrate API functionality into the UI. Supporting backend services development using Python (FastAPI) and contributing to API schema design and implementation. Building a high-performance, user-friendly experience across internal and external-facing applications. Working with DevOps and … engineering teams to ensure fast, reliable deployment pipelines. Tech Stack: Frontend : React, TypeScript, TailwindCSS Backend : Python (FastAPI, SQLAlchemy, Alembic, Pydantic) DevOps & Infra : Docker, Kubernetes, Azure, KEDA Testing : PyTest, TypeScript testing frameworks About You: 1–4 years' experience in a frontend or full stack role with a strong emphasis on UI More ❯

and accessible components from FIGMA designs. Collaborating closely with backend engineers to integrate API functionality into the UI. Supporting backend services development using Python (FastAPI) and contributing to API schema design and implementation. Building a high-performance, user-friendly experience across internal and external-facing applications. Working with DevOps and … engineering teams to ensure fast, reliable deployment pipelines. Tech Stack: Frontend : React, TypeScript, TailwindCSS Backend : Python (FastAPI, SQLAlchemy, Alembic, Pydantic) DevOps & Infra : Docker, Kubernetes, Azure, KEDA Testing : PyTest, TypeScript testing frameworks About You: 1–4 years' experience in a frontend or full stack role with a strong emphasis on UI More ❯

design, develop and maintain backend systems for analytics-driven applications, user tools, and automation workflows. Build and manage APIs and internal services using Python (FastAPI, Flask) and cloud-native tooling. Develop and manage data pipelines, backend components, and supporting infrastructure. Manage server resources and backend processing environments to ensure reliability … models. Lead or support the data engineering team, help structure development workflows, and mentor junior team members. Software Engineer - (Not all) Skills Required: Python (FastAPI, Flask) REST API development RabbitMQ/Message queue PostgreSQL Databricks Containerisation: Docker, Kubernetes CI/CD: Azure DevOps, GitHub Actions Relational databases and data lake More ❯

design, develop and maintain backend systems for analytics-driven applications, user tools, and automation workflows. Build and manage APIs and internal services using Python (FastAPI, Flask) and cloud-native tooling. Develop and manage data pipelines, backend components, and supporting infrastructure. Manage server resources and backend processing environments to ensure reliability … tools and models. Lead or support the data engineering team, help structure development workflows, and mentor junior team members. Software Engineer - Skills Required: Python (FastAPI, Flask) (or another asynchronous language/framework) REST API development RabbitMQ/Message queue PostgreSQL Databricks Containerisation: Docker, Kubernetes CI/CD: Azure DevOps, GitHub More ❯

Are you passionate about revolutionising engineering with AI? Here at Monolith AI we're on a mission to empower engineers to use AI to solve even their most intractable physics problems. We've doubled in size over the last four More ❯

Senior Backend Developer (Python/Flask/FastAPI) – Up to £80,000 – 12-Month FTC London or Remote (UK-Based) We’re partnering exclusively with an award-winning global consultancy that’s looking for a Senior Backend Developer to join their dynamic Digital team on a 12-month fixed-term … in a greenfield project, building robust Python backend services with Flask. The tech you’ll be working with: • Languages/Frameworks: Python 3 (Flask, FastAPI), Golang • Infrastructure: Docker, Kubernetes • Tooling/Platform: GitHub Enterprise Cloud, GCP, Slack, Datadog, Postgres What we’re looking for: • 4+ years of commercial Python experience More ❯

Leverage Azure Data Factory for orchestrating and automating data movement and transformation. Python Development : Write clean, efficient code in Python (3.x), using frameworks like FastAPI and Pydantic. Database Management : Design and manage relational schemas and databases, with a strong focus on SQL and PostgreSQL. CI/CD and Containerization : Implement … Factory for data orchestration. Clinical Data Security : Understanding of protocols and standards related to securing clinical data. Python Proficiency : Strong skills in Python (3.x), FastAPI, Pydantic, and Pytest. SQL and Relational Databases : Knowledge of SQL, relational schema design, and PostgreSQL. CI/CD and Containers : Familiarity with CI/CD More ❯

Factory: Leverage Azure Data Factory for orchestrating and automating data movement and transformation.Python Development: Write clean, efficient code in Python (3.x), using frameworks like FastAPI and Pydantic.Database Management: Design and manage relational schemas and databases, with a strong focus on SQL and PostgreSQL.CI/CD and Containerisation: Implement CI/… Azure Data Factory for data orchestration.Clinical Data Security: Understanding of protocols and standards related to securing clinical data.Python Proficiency: Strong skills in Python (3.x), FastAPI, Pydantic, and Pytest.SQL and Relational Databases: Knowledge of SQL, relational schema design, and PostgreSQL.CI/CD and Containers: Familiarity with CI/CD practices and More ❯

Leverage Azure Data Factory for orchestrating and automating data movement and transformation. Python Development: Write clean, efficient code in Python (3.x), using frameworks like FastAPI and Pydantic. Database Management: Design and manage relational schemas and databases, with a strong focus on SQL and PostgreSQL. CI/CD and Containerisation: Implement … Factory for data orchestration. Clinical Data Security: Understanding of protocols and standards related to securing clinical data. Python Proficiency: Strong skills in Python (3.x), FastAPI, Pydantic, and Pytest. SQL and Relational Databases: Knowledge of SQL, relational schema design, and PostgreSQL. CI/CD and Containers: Familiarity with CI/CD More ❯

or similar), with social login + MFA Data governance: Apply labelling to Postgres, S3 and BigQuery data Web security hardening: Audit React, GraphQL and FastAPI layers to eliminate XSS/CSRF and strengthen CSP Static analysis remediation: Triage and address SAST findings RBAC rollout: Finalise and implement role-based access … controls Audit logging: Structure and surface user action logs in the app 💻 Tech Stack Frontend: React, Apollo GraphQL Backend: FastAPI (Python) Infra/Security: GitHub Actions, SAST tools, Auth0 (or equivalent), RBAC, CSP ✅ What We’re Looking For Must-haves: 5+ years building production-grade web apps (React + Python More ❯

or similar), with social login + MFA Data governance: Apply labelling to Postgres, S3 and BigQuery data Web security hardening: Audit React, GraphQL and FastAPI layers to eliminate XSS/CSRF and strengthen CSP Static analysis remediation: Triage and address SAST findings RBAC rollout: Finalise and implement role-based access … controls Audit logging: Structure and surface user action logs in the app 💻 Tech Stack Frontend: React, Apollo GraphQL Backend: FastAPI (Python) Infra/Security: GitHub Actions, SAST tools, Auth0 (or equivalent), RBAC, CSP ✅ What We’re Looking For Must-haves: 5+ years building production-grade web apps (React + Python More ❯

help shape the product, tech stack, and culture from the ground up. What you’ll do: Own the full stack: from backend (Python/FastAPI/Django) to frontend (React/Next.js) Build and launch our MVP with speed and care Set technical direction, architecture, and best practices Collaborate directly … in a fast-moving, zero-to-one environment What we’re looking for: 3+ years of experience in full-stack development Proficient in Python (FastAPI, Django) and React (or Next.js) Start-up mindset — you’re comfortable with ambiguity and fast iteration Experience shipping real-world products end to end Bonus More ❯

Skills Required Skills in Python, preferably with experience in frameworks such as Django, Flask, or FastAPI. Full-stack experience, particularly with React, is preferred but not essential. I value a track record of taking products through various development environments into More ❯

The role is based in London (Victoria), with hybrid working: three days in the office and two from home. Responsibilities: Python backend development using FastAPI, Pydantic, and related frameworks JavaScript (React) frontend development based on FIGMA designs KAFKA integration for building event-driven architectures Database development using CosmosDB and MongoDB … presentations to client profiles Real-time event-stream processing systems to support future-ready financial operations Ideal Candidate Profile: Python development experience, preferably with FastAPI and modern backend frameworks React frontend development experience with modern JavaScript/TypeScript ecosystems KAFKA event-driven system design experience Strong academic background in a More ❯