1 to 25 of 52 Flask Jobs in the City of London

in a senior or technical lead role. Proven expertise in full-stack development using: TypeScript (and JavaScript frameworks such as NextJS, Node, or Tailwind) Python (including frameworks like Django, Flask, or FastAPI) PostgreSQL and relational database design, optimization, and maintenance. AI Development Tools such as Windsurf, Aider or Augment. Demonstrable experience building and scaling SaaS platforms in a production environment. More ❯

in a senior or technical lead role. Proven expertise in full-stack development using: TypeScript (and JavaScript frameworks such as NextJS, Node, or Tailwind) Python (including frameworks like Django, Flask, or FastAPI) PostgreSQL and relational database design, optimization, and maintenance. AI Development Tools such as Windsurf, Aider or Augment. Demonstrable experience building and scaling SaaS platforms in a production environment. More ❯

system integration and contribute to prompt engineering efforts Required Qualifications: 5+ years developing full-stack software applications Expert-level Python skills Strong experience with modern web frameworks (FastAPI, Django, Flask) Proficiency in frontend technologies (React, TypeScript, JavaScript) Experience with databases (PostgreSQL, MongoDB) and data processing Track record of shipping reliable, scalable applications to production Proven problem-solving abilities and analytical More ❯

system integration and contribute to prompt engineering efforts Required Qualifications: 5+ years developing full-stack software applications Expert-level Python skills Strong experience with modern web frameworks (FastAPI, Django, Flask) Proficiency in frontend technologies (React, TypeScript, JavaScript) Experience with databases (PostgreSQL, MongoDB) and data processing Track record of shipping reliable, scalable applications to production Proven problem-solving abilities and analytical More ❯

to the development of intelligent, scalable digital products. Key Responsibilities: Design, build, and maintain scalable fullstack web applications using React on the frontend and Python (Django/FastAPI/Flask) on the backend. Collaborate closely with data scientists, ML engineers, and product managers to integrate AI-driven features into the platform. Develop and maintain RESTful APIs and backend services to More ❯

to the development of intelligent, scalable digital products. Key Responsibilities: Design, build, and maintain scalable fullstack web applications using React on the frontend and Python (Django/FastAPI/Flask) on the backend. Collaborate closely with data scientists, ML engineers, and product managers to integrate AI-driven features into the platform. Develop and maintain RESTful APIs and backend services to More ❯

technology, and are looking for ways to implement Machine Learning and improving DevOps in their process to further add value to their Authors. Their overall technology stack includes: Django, Flask, React, MongoDB, PostgreSQL, SQLserver, Docker and is currently being hosted in Azure. They've recently introduced Terraform and will also be moving their containerization to Kubernetes. On the frontend, they More ❯

technology, and are looking for ways to implement Machine Learning and improving DevOps in their process to further add value to their Authors. Their overall technology stack includes: Django, Flask, React, MongoDB, PostgreSQL, SQLserver, Docker and is currently being hosted in Azure. They've recently introduced Terraform and will also be moving their containerization to Kubernetes. On the frontend, they More ❯

ensuring high performance and responsiveness to requests from front-end applications and third-party systems. Key Responsibilities: Design and develop robust backend services and RESTful APIs using Python (FastAPI, Flask, or Django) Build and deploy microservices that are scalable, loosely coupled, and independently deployable Develop and manage serverless applications using AWS Lambda , API Gateway , DynamoDB , S3 , SNS , SQS , and Step More ❯

ensuring high performance and responsiveness to requests from front-end applications and third-party systems. Key Responsibilities: Design and develop robust backend services and RESTful APIs using Python (FastAPI, Flask, or Django) Build and deploy microservices that are scalable, loosely coupled, and independently deployable Develop and manage serverless applications using AWS Lambda , API Gateway , DynamoDB , S3 , SNS , SQS , and Step More ❯

enjoy building meaningful tools with real-world impact — and care about AI being aligned with human values — this is the place to do it. 🛠️ Tech Stack Backend: Python, FastAPI, Flask, monorepo architecture Frontend: React, TypeScript Infrastructure: AWS, EC2, DynamoDB, Docker Tools: Custom eval libraries, observability tooling, real-time agent monitoring systems 🧠 What You’ll Work On Build full-stack features … centered mindset to technical work ✅ What We’re Looking For 6+ years as a Full Stack or Backend Engineer building production-grade software Strong backend experience with Python (FastAPI, Flask, or Django) Confident with modern frontend frameworks like React and TypeScript Skilled in building and maintaining APIs, cloud services (AWS or GCP), and containerized deployments Strong problem-solving skills, and More ❯

enjoy building meaningful tools with real-world impact — and care about AI being aligned with human values — this is the place to do it. ️ Tech Stack Backend: Python, FastAPI, Flask, monorepo architecture Frontend: React, TypeScript Infrastructure: AWS, EC2, DynamoDB, Docker Tools: Custom eval libraries, observability tooling, real-time agent monitoring systems What You’ll Work On Build full-stack features … centered mindset to technical work ✅ What We’re Looking For 6+ years as a Full Stack or Backend Engineer building production-grade software Strong backend experience with Python (FastAPI, Flask, or Django) Confident with modern frontend frameworks like React and TypeScript Skilled in building and maintaining APIs, cloud services (AWS or GCP), and containerized deployments Strong problem-solving skills, and More ❯

enjoy building meaningful tools with real-world impact — and care about AI being aligned with human values — this is the place to do it. 🛠️ Tech Stack Backend: Python, FastAPI, Flask, monorepo architecture Frontend: React, TypeScript Infrastructure: AWS, EC2, DynamoDB, Docker Tools: Custom eval libraries, observability tooling, real-time agent monitoring systems 🧠 What You’ll Work On Build full-stack features … centered mindset to technical work ✅ What We’re Looking For 6+ years as a Full Stack or Backend Engineer building production-grade software Strong backend experience with Python (FastAPI, Flask, or Django) Confident with modern frontend frameworks like React and TypeScript Skilled in building and maintaining APIs, cloud services (AWS or GCP), and containerized deployments Strong problem-solving skills, and More ❯

full-stack or backend) 3+ years of commercial experience in Python 2+ years with any frontend JavaScript frameworks i.e. React/Angular/Vue.js Experience with frameworks like Django, Flask or FastAPI Exposure to cloud platforms such as AWS, Azure, or GCP UK-based, ideally London or commutable and able to work Hybrid (frequency can vary for each client) If More ❯

full-stack or backend) 3+ years of commercial experience in Python 2+ years with any frontend JavaScript frameworks i.e. React/Angular/Vue.js Experience with frameworks like Django, Flask or FastAPI Exposure to cloud platforms such as AWS, Azure, or GCP UK-based, ideally London or commutable and able to work Hybrid (frequency can vary for each client) If More ❯

etc.) • MS Azure experience e.g. virtual networks, key vaults and storage, security • MS SQL backend development experience • Experience in developing API’s in python using FastAPI/Django/Flask • Hands on in ADF and Azure Databricks With a focus within Energy Trading, Oil & Gas, Financial Markets and Commodities, we offer a transparent Recruitment Service that has proven to be More ❯

etc.) • MS Azure experience e.g. virtual networks, key vaults and storage, security • MS SQL backend development experience • Experience in developing API’s in python using FastAPI/Django/Flask • Hands on in ADF and Azure Databricks With a focus within Energy Trading, Oil & Gas, Financial Markets and Commodities, we offer a transparent Recruitment Service that has proven to be More ❯

to engineering practices. Ensure alignment with cybersecurity, data privacy, and governance standards. Technical Skills: 5+ years of experience in software engineering, including 3+ years of Python in production (e.g., Flask, Django, Gunicorn, SQLAlchemy, Psycopg2). Strong background in working with large datasets using tools like Pandas, NumPy, or Spark. At least 2 years' experience with machine learning, deep learning, or More ❯

to engineering practices. Ensure alignment with cybersecurity, data privacy, and governance standards. Technical Skills: 5+ years of experience in software engineering, including 3+ years of Python in production (e.g., Flask, Django, Gunicorn, SQLAlchemy, Psycopg2). Strong background in working with large datasets using tools like Pandas, NumPy, or Spark. At least 2 years' experience with machine learning, deep learning, or More ❯

the development of data-driven features , enabling enterprises to measure and optimize their digital business card interactions. As part of this role, you’ll help migrate our backend from Flask to Django , ensuring a scalable and well-structured API design. Responsibilities Design and develop analytics and reporting tools , providing insights into user engagement and marketing performance. Build and optimize data … pipelines for tracking and processing user interactions. Work closely with co-founders and product leaders to architect new marketing and analytics features . Support the migration from Flask to Django Adapt RESTful APIs to support integrations with CRM, marketing automation, and analytics platforms. Enhance the frontend using React and TypeScript , ensuring intuitive visualization of analytics data. Implement event tracking, attribution … of experience in software engineering, with a focus on backend development. Experience building analytics and marketing tools (e.g., dashboards, tracking systems, attribution models). Strong experience with Django (or Flask) and PostgreSQL . Solid understanding of data pipelines, event tracking, and API integrations . Proficiency in React, TypeScript, and frontend visualization frameworks (e.g., D3.js, Chart.js, Recharts) . Hands-on experience More ❯

the development of data-driven features , enabling enterprises to measure and optimize their digital business card interactions. As part of this role, you’ll help migrate our backend from Flask to Django , ensuring a scalable and well-structured API design. Responsibilities Design and develop analytics and reporting tools , providing insights into user engagement and marketing performance. Build and optimize data … pipelines for tracking and processing user interactions. Work closely with co-founders and product leaders to architect new marketing and analytics features . Support the migration from Flask to Django Adapt RESTful APIs to support integrations with CRM, marketing automation, and analytics platforms. Enhance the frontend using React and TypeScript , ensuring intuitive visualization of analytics data. Implement event tracking, attribution … of experience in software engineering, with a focus on backend development. Experience building analytics and marketing tools (e.g., dashboards, tracking systems, attribution models). Strong experience with Django (or Flask) and PostgreSQL . Solid understanding of data pipelines, event tracking, and API integrations . Proficiency in React, TypeScript, and frontend visualization frameworks (e.g., D3.js, Chart.js, Recharts) . Hands-on experience More ❯

the development of data-driven features , enabling enterprises to measure and optimize their digital business card interactions. As part of this role, you’ll help migrate our backend from Flask to Django , ensuring a scalable and well-structured API design. Responsibilities Design and develop analytics and reporting tools , providing insights into user engagement and marketing performance. Build and optimize data … pipelines for tracking and processing user interactions. Work closely with co-founders and product leaders to architect new marketing and analytics features . Support the migration from Flask to Django Adapt RESTful APIs to support integrations with CRM, marketing automation, and analytics platforms. Enhance the frontend using React and TypeScript , ensuring intuitive visualization of analytics data. Implement event tracking, attribution … of experience in software engineering, with a focus on backend development. Experience building analytics and marketing tools (e.g., dashboards, tracking systems, attribution models). Strong experience with Django (or Flask) and PostgreSQL . Solid understanding of data pipelines, event tracking, and API integrations . Proficiency in React, TypeScript, and frontend visualization frameworks (e.g., D3.js, Chart.js, Recharts) . Hands-on experience More ❯

remediation of recurring issues to improve the overall operational stability of software applications and systems. Ideal candidate: A developer proficient in Python and modern web development frameworks (e.g., Django, Flask, Asyncio/Aiohttp). Some experience in the power market, ideally for a trading desk in an energy market trading environment; utilities, producers, or trading houses preferred. Experience with SQL More ❯

Company | Fintech, B2C 📏 Size | 70 people 🧢 Role | Backend Engineer 🪜 Level | Mid 🎯 Areas | backend focus, product development, infrastructure ✨ Tech | Python (Flask), PostgreSQL, Docker, AWS, Terraform 📍 Based | London (Zone 1) 💻 Working | hybrid (1-2 days a week in-office) 💰 Offer | £75-95k Hi 👋 Workonomics are partnering with a fintech whose mission is to help you do more with your money. They … with lots of complex new features to build . They want their tech to be fully automated and do all of the heavy-lifting. Their stack is a Python (Flask) backend and a TypeScript ( React/Redux/Next . js ) frontend, on a mix of Heroku and AWS . They also use PostgreSQL . ✅ This will suit a product More ❯

Company | Fintech, B2C 📏 Size | 70 people 🧢 Role | Backend Engineer 🪜 Level | Mid 🎯 Areas | backend focus, product development, infrastructure ✨ Tech | Python (Flask), PostgreSQL, Docker, AWS, Terraform 📍 Based | London (Zone 1) 💻 Working | hybrid (1-2 days a week in-office) 💰 Offer | £75-95k Hi 👋 Workonomics are partnering with a fintech whose mission is to help you do more with your money. They … with lots of complex new features to build . They want their tech to be fully automated and do all of the heavy-lifting. Their stack is a Python (Flask) backend and a TypeScript ( React/Redux/Next . js ) frontend, on a mix of Heroku and AWS . They also use PostgreSQL . ✅ This will suit a product More ❯