22 of 22 Permanent Flask Jobs in London

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 ...

Data ecosystem and SQL Databases (Apache Airflow, Iceberg, Spark/Thrift, PostgreSQL, Azure Hyperscale) Python as a primary backend language High-level frameworks (Flask, SQLAlchemy, Alembic, Pytest, Socket.IO) Amazon Web Services and ecosystem (AWS core services, Lambda, RDS, EKS, S3, etc.) Cloud-native technologies (Kubernetes, Helm, Docker) Observability technologies (Prometheus ...

leading technical projects Comfortable working in fast-paced startup environments Experience with AI/LLM integrations is highly desirable Python backend experience (FastAPI, Flask, Django) is beneficial Excellent communication and stakeholder management skills This role offers hybrid working, with an office location based in London. For any additional questions, please ...

building scalable mobile APIs (REST, HTTPS, etc.). Good principles of security management (secrets, protocols, etc.). Experience with some Python web frameworks (Django, Flask, FastAPI, etc.). Desirable Skills 👌 Can speak, or learning to speak, more than one language Experience with real-time and/or in-memory databases ...

What They’re Looking For Strong Python backend development experience in production environments (at least2 years) Experience building APIs using frameworks such as FastAPI, Flask or Django Good knowledge of at least one Python-compatible frontend framework Strong experience with AWS services and cloud-native development Understanding of event-driven ...

backend systems and APIs Work on high-availability, data-intensive applications Collaborate with engineering, data, and business teams Required Experience Strong Python experience (Django, Flask or FastAPI) Proven backend/API development experience Experience within banking or financial services Exposure to cloud (AWS/Azure/GCP) and modern engineering ...

decisions, delivery, and continuous improvement of engineering practices. Key Responsibilities Design and deliver scalable, secure web applications Build backend services using Python (e.g. FastAPI, Flask, or Django) Develop modern frontend applications using React and TypeScript Design and maintain RESTful APIs 5+ years’ experience as a full-stack developer AI & Modern ...

with ability to handle complex queries and large datasets Experience with Python libraries (Pandas, NumPy) for data processing Experience building RESTful APIs/services (Flask/FastAPI/Django) Strong understanding of data structures and performance optimization Experience working with large-scale data processing and performance optimization Working knowledge ...

senior IC, running code reviews, mentoring engineers, and getting involved early in research and experimentation, not just building to spec. The stack Python (FastAPI, Flask, strong typing, Pydantic) PostgreSQL AWS (Lambda serverless + ECS/Docker) Internal dev platform with standardised CI/CD pipelines Feature flags and automated preview ...

engineering practices and mentoring other developers in a high-growth environment. You'll be responsible for architecting and building Python-based systems (FastAPI, Django, Flask), developing and optimising data pipelines, and ensuring systems are scalable, secure, and performant. You'll collaborate closely with product, AI, and design teams to translate ...

Software Engineer | London | Hybrid | Tech for Good Location: London (hybrid) Salary: £80,000 to £95,000 + equity + benefits Tech stack: • Python (Django, Flask or FastAPI preferred) • React/TypeScript • AWS We’re partnered with a mission driven company using technology to support large scale environmental and operational projects ...

technical decisions as the platform evolves and scales Owning meaningful parts of the product rather than small isolated tickets Tech stack Backend: Python (FastAPI, Flask, or Django experience beneficial), Postgres Frontend: TypeScript, Vue 3 Cloud: Azure, GCP, or AWS experience a bonus You do not need to match this exactly. ...

workflows for technical users Pragmatic builder. You know when to ship vs. over-engineer Nice to have Experience with Python-based backends (FastAPI/Flask/Django) Exposure to data visualisation, time-series, or experiment-style workflows Familiarity with design systems/component libraries Experience in AI/ML, data ...

deliver features end to end Key requirements: 4 to 8 years software engineering experience Strong Python backend skills, APIs, and frameworks such as FastAPI, Flask, or Django Experience building production systems in a startup or fast-paced environment Familiarity with cloud platforms such as AWS, GCP, or Azure Exposure ...

160k 🚀🧠 💰 Salary: £70,000 - £160,000 + meaningful equity 🏙️ Location : London, flexible working arrangements, ideally 2/3 days in office 💻 Tech Stack : Python, Flask, FastAPI, React, TypeScript, GCP (Backend Leaning) Our y-combinator backend client are building an elite engineering team within the AI space. The platform is being ...

Python Full Stack Developer Requirements Develop highly scalable applications in Core Python. Hands-on with Python web frameworks such as Django, Flask, or FastAPI. Experience working on SQL with ability to run various data analytics tasks and queries. Exposure to Java script technologies (preferably React) Exposure to Azure Databricks environment … desirable Qualifications 8+ years of prior experience as a developer in the required technologies CORE TECHNOLOGIES Scripting : Python, SQL, Bash, PySpark Web frameworks: Django, Flask, or FastAPI. Frontend Technologies: ReactJS, Java Script Azure : Azure Databricks, Azure Synapse Analytics, Azure Functions, Azure Data Lake Storage Gen2, Azure Event Grid, Azure Event ...

Salary: £60,000 - £85,000 + meaningful equity 🏙️ Location : London, flexible working arrangements, ideally 2/3 days in office 💻 Tech Stack : Python, Flask, FastAPI, React, TypeScript, GCP (Backend Leaning) Our y-combinator backend client are building an elite engineering team within the AI space. The platform is being used ...

just implement them Setting technical direction and raising engineering standards within a small team What They’re Looking For: Strong Python experience (FastAPI, Django, Flask etc) Track record of owning or significantly evolving production systems Experience making architectural decisions and working across the full lifecycle Comfortable operating in a smaller ...

design, backend development, and data engineering. Key Responsibilities • Design and develop AI and Generative AI applications using Python. • Build backend services and APIs using Flask or Django for AI-powered systems. • Work with enterprise databases (SQL-based systems) to ingest, transform, and manage large datasets. • Develop and integrate GenAI capabilities … enabled automation • Python development: Strong coding and data processing experience • SQL and database experience: Querying, data modeling, and data integration • Backend frameworks: Django or Flask • API development: RESTful services and microservice architecture • AI system architecture/solution design: Designing scalable AI applications • Cloud platforms: Azure AI services preferred • Data platforms ...

Software Engineer | London | £100,000 - £150,000 | Python | React Location: London-based (hybrid) Salary: £100,000 - £150,000 + equity Tech Stack: Backend: Python (Flask or FastAPI or Django) Frontend: React, TypeScript Cloud Systems: GCP or AWS Are you a software engineer who enjoys shipping real products, solving tangible customer … impact without layers of process getting in the way. What you will be doing: Designing, building, and maintaining backend services and APIs using Flask & FastAPI Building and evolving user facing web components using React/TypeScript Integrating third party services and AI models into production workflows Investigating production issues ...

platform and make a real difference to our customers. What you’ll do Design, build, and ship reliable backend services and APIs in Python (Flask) that power core product functionality. Own features end-to-end: data modelling (Postgres), API design, testing, production rollout and ongoing improvements. Help uphold strong engineering … week. What we’re looking for 5+ years experience building and operating production backend systems. Strong experience with Python, and hands-on use of Flask (or similar frameworks). Solid understanding of Postgres (schemas, migrations, query performance, transactions). Experience designing and maintaining APIs (REST; event-driven experience ...

platform and make a real difference to our customers. What you’ll do Design, build, and ship reliable backend services and APIs in Python (Flask) that power core product functionality. Own features end-to-end: data modelling (Postgres), API design, testing, production rollout and ongoing improvements. Help uphold strong engineering … week. What we’re looking for 5+ years experience building and operating production backend systems. Strong experience with Python, and hands-on use of Flask (or similar frameworks). Solid understanding of Postgres (schemas, migrations, query performance, transactions). Experience designing and maintaining APIs (REST; event-driven experience ...