1 to 25 of 79 Flask Jobs in the UK

Senior Fullstack Engineer (Python + React.js)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
strong focus on building scalable, high‐performance systems. Technical Skills: Python expertise, with hands‐on experience building backend services and APIs using FastAPI, Flask or similar. Experience in designing and developing end‐to‐end (E2E) tests to ensure smooth integration between backend and frontend components. A solid understanding of microservices ...

Systems Developer

Hiring Organisation
Massenhove Recruitment Limited
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£40,000 - £55,000 per annum
Python Strong understanding of Python fundamentals, object-oriented programming, and design patterns Experience with at least one modern Python web framework (e.g. Django, Flask, or FastAPI) Solid understanding of relational databases (e.g. PostgreSQL, MySQL, SQL Server) and SQL Experience with version control (Git) and collaborative workflows (e.g. GitHub, GitLab, Bitbucket ...

Senior Software Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Required Skills & Qualifications 6–11 years of professional software development experience with strong expertise in Python. Solid understanding of Python frameworks such as Django, Flask, or FastAPI. Experience in building RESTful APIs and microservices architecture. Strong knowledge of data structures, algorithms, and object-oriented programming. Hands-on experience with databases ...

Digital Developer

Hiring Organisation
ALOIS UK
Location
Exeter, England, United Kingdom
full stack. · Troubleshoot, debug, and optimise applications for performance, security, and usability. Requirements: Experience with Next.js, React, TypeScript, Search Indexes, Python, and FastAPI/Flask; familiarity with REST APIs, Elastic, Git, automated testing, and modern deployment workflows. Experience with cloud platforms, Docker, Github Action based CI/CD pipelines ...

Senior Backend Python Engineer | Flexible Work

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
collaborative environment. 5+ years of professional experience in backend software development primarily using Python Strong experience with Python web frameworks such as Django or Flask Proficient with RESTful API design and implementation Experience with database systems (SQL and NoSQL) Familiarity with containerization technologies like Docker and orchestration tools Experience working ...

Senior Python Engineer

Hiring Organisation
Method-Resourcing
Location
Watford, Hertfordshire, South East, United Kingdom
Employment Type
Permanent, Work From Home
Essential Professional Python development experience (5+ years) Strong understanding of software design patterns and engineering principles Experience with frameworks such as FastAPI, Django, or Flask Solid knowledge of RESTful APIs and distributed systems Experience working with relational and NoSQL databases Strong testing experience (PyTest, unit, integration, and automated testing) Experience ...

Principle Software Engineer

Hiring Organisation
Jobleads-UK
Location
Retford, England, United Kingdom
React Contribute to solutions from design through to delivery and support, with guidance from senior engineers Develop applications, including Progressive Web Apps, using React, Flask, and Python backends Build and integrate REST APIs and contribute to event-driven services Troubleshoot and resolve issues across business and aviation systems, owning resolution ...

Senior AI Engineer - Perm UK

Hiring Organisation
INFUSED SOLUTIONS LIMITED
Location
London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£80,000
experience. Experience productionising Machine Learning, NLP or Generative AI models. Strong experience designing and building RESTful APIs and microservices using frameworks such as FastAPI , Flask or Django . Strong SQL skills with experience designing performant relational database solutions. Commercial experience with AWS and/or Azure cloud platforms. Experience designing ...

Senior Python Backend Software Developer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
quickly Ability to effectively communicate complex technical concepts to team members and stakeholders. Familiarity with coding in Django and the Django Rest Framework, or Flask Web frameworks Degree in Computer Science (or similar), at 2:1 or above Amazon Web Services SQL/PostgreSQL Build pipeline and CI with GitHub ...

Senior Software Engineer – Python / AWS / Cloud (SC or DV Cleared)

Hiring Organisation
Jobleads-UK
Location
England, United Kingdom
backend services Familiarity with CI/CD pipelines and cloud deployment Comfortable working in secure or regulated environments Nice to Have Experience with FastAPI, Flask, Django , or similar frameworks Exposure to frontend technologies (React, Next.js, Angular) Experience with containerisation (Docker, Kubernetes) Background in public sector, defence, or government programmes Understanding ...

Principal, Cloud Software Engineer

Hiring Organisation
Jobleads-UK
Location
Cambridge, England, United Kingdom
full stack web applications using Python, Java, C++ and modern frontend frameworks. Build scalable backend services and APIs using Python frameworks such as FastAPI, Flask, or Django. Develop responsive, intuitive, and secure user interfaces using React, TypeScript, JavaScript, HTML5, CSS and Tailwind. Build healthcare and research applications that support clinical ...

Senior Software Engineer August 6, 2026

Hiring Organisation
Jobleads-UK
Location
Glasgow, Scotland, United Kingdom
ADRs, process improvements, and workstream planning. What You’ll Bring Core Significant commercial software engineering experience. Strong Python, with production experience in FastAPI, Django, Flask, or similar. PostgreSQL fluency, schema design, query optimisation, and ORM frameworks such as SQLAlchemy/SQLModel. Commercial experience with TypeScript and React, and a genuine ...

AI Engineer - Remote / Contract

Hiring Organisation
Jobleads-UK
Location
Brighton, England, United Kingdom
Software Engineer with strong AI/ML exposure Technical Skills Advanced Python (asyncio, type hinting, Pydantic) Backend/API development with FastAPI/Flask/Django Agentic frameworks (LangChain, LangGraph, Microsoft Agent Framework) IaC (Terraform) PostgreSQL, plus exposure to NoSQL and vector databases Work effectively with data scientists ...

Apprentice Software Developer

Hiring Organisation
Reed Technology
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£20000 - £25000/annum
Interest in modern web development and frameworks such as React and Next.js. Understanding of backend development concepts with frameworks like Node.js, Python (Fast API, Flask, or similar). Basic knowledge of RESTful APIs and system integration. Familiarity with relational and/or NoSQL databases. Exposure to cloud computing platforms like ...

Junior Developer

Hiring Organisation
Avanti Recruitment
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP 45,000 - 55,000 Annual
exposure to machine learning projects Experience contributing to the deployment of an ML solution as part of a team Experience with React, AWS, Django, Flask, FastAPI, REST APIs, Git or CI/CD would also be beneficial. You do not need to be a machine learning specialist. However, you should ...

Junior Developer

Hiring Organisation
Avanti Recruitment
Location
Hackney, Greater London, Old Street, United Kingdom
Employment Type
Permanent
Salary
£45000 - £55000/annum
exposure to machine learning projects Experience contributing to the deployment of an ML solution as part of a team Experience with React, AWS, Django, Flask, FastAPI, REST APIs, Git or CI/CD would also be beneficial. You do not need to be a machine learning specialist. However, you should ...

AI Engineer - Remote

Hiring Organisation
Jobleads-UK
Location
Stanmer, England, United Kingdom
2+ years as an AI Engineer or Software Engineer with strong AI/ML exposure Technical Skills Backend/API development with FastAPI/Flask/Django Agentic frameworks (LangChain, LangGraph, Microsoft Agent Framework) PostgreSQL, plus exposure to NoSQL and vector databases Work effectively with data scientists, PMs, and stakeholders ...

Senior Developer

Hiring Organisation
Venesky Brown
Location
Scotland, United Kingdom
points over the course of a FY year. Essential Skills: Significant commercial experience with the following technology: - Java 11+ - Python 3 - Spring Boot, Python Flask microservices - Spring security and OAuth2. - JavaScript UI frameworks, including React. - Strong HTML/CSS skills and an awareness of accessibility considerations. - OpenShift - Modern DevOps ...

Senior Backend Engineer (Python)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Looking For Required 7+ years of professional backend engineering experience. Expert-level Python development experience. Strong experience with modern Python web frameworks (FastAPI, Django, Flask or similar). Deep knowledge of PostgreSQL and relational database design. Experience building scalable REST APIs and backend services. Strong understanding of distributed systems ...

Data Scientist (AI & ML) - NEW

Hiring Organisation
17918
Location
Belfast, County Antrim, United Kingdom
LangChain/LangGraph/LlamaIndex/Semantic Kernel OpenAI/Anthropic/Amazon Bedrock/Azure OpenAI Scikit-learn TensorFlow PyTorch Pandas FastAPI/Flask REST APIs Vector Databases Docker Kubernetes Git CI/CD MLOps Data Pipelines ETL Model Deployment & Monitoring AI Governance & Observability What They're Looking ...

Senior Machine Learning Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
layered datasets (including imbalanced data) and integrating data pipelines into AI services Hands-on experience building and deploying web APIs using libraries such as Flask or FastAPI. Proficiency with database technologies such as SQL Server or Postgres, etc. Strong stakeholder communication skills: able to explain technical designs, risks, and operational ...

Backend Developer

Hiring Organisation
First Choice Staff
Location
Feltham, London, United Kingdom
Employment Type
Permanent
Salary
£40,000
documentation covering architecture, processes, and code Essential Skills and Experience Solid proficiency in Python, JavaScript, and SQL Strong understanding of back-end frameworks (e.g. Flask, FastAPI, Node.js or similar) Experience working with cloud platforms (e.g. DigitalOcean, AWS, or Azure) Experience developing or maintaining RPA solutions Ability to work independently, managing ...

Senior Software Engineer (Java Or Python) - VP

Hiring Organisation
Jobleads-UK
Location
Belfast City District, Northern Ireland, United Kingdom
full‐stack application development with strong expertise in **Java or Python*** Deep experience with backend frameworks such as **Spring Boot/Spring Core** and **Flask/FastAPI*** Solid frontend experience with **modern JavaScript frameworks** (React, Angular, or Vue)* Experience designing and delivering **scalable, cloud‐native applications*** Exposure ...

Lead AI Engineer

Hiring Organisation
Jobleads-UK
Location
Crawley, England, United Kingdom
developers and business teams, showcasing strong leadership, creativity, and ethical problem‐solving. **Technical Expertise & Tools**: Python: Advanced, production‐grade proficiency (Pandas, NumPy, FastAPI/Flask) with an absolute focus on writing clean, modular, and highly testable code. SQL: Expert querying, database design, partitioning, and optimization strategies for large‐scale BigQuery ...

Senior Software Engineer (Java Or Python) - VP

Hiring Organisation
Jobleads-UK
Location
Belfast City District, Northern Ireland, United Kingdom
full‐stack application development with strong expertise in Java or Python Deep experience with backend frameworks such as Spring Boot/Spring Core and Flask/FastAPI Solid frontend experience with modern JavaScript frameworks (React, Angular, or Vue) Experience designing and delivering scalable, cloud‐native applications Exposure ...